/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 00:27:40,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 00:27:40,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 00:27:40,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 00:27:40,248 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-09 00:27:40,269 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 00:27:40,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 00:27:40,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 00:27:40,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 00:27:40,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 00:27:40,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 00:27:40,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 00:27:40,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 00:27:40,278 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 00:27:40,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 00:27:40,279 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 00:27:40,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 00:27:40,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 00:27:40,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 00:27:40,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 00:27:40,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 00:27:40,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 00:27:40,279 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 00:27:40,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 00:27:40,279 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 00:27:40,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 00:27:40,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 00:27:40,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 00:27:40,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 00:27:40,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 00:27:40,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 00:27:40,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 00:27:40,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 00:27:40,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 00:27:40,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 00:27:40,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 00:27:40,281 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 00:27:40,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 00:27:40,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 00:27:40,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 00:27:40,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 00:27:40,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 00:27:40,449 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 00:27:40,449 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 00:27:40,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-02-09 00:27:40,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c91f4ccb/45e11c8536044bf49eea88f53c956be0/FLAG5b237015d [2022-02-09 00:27:40,864 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 00:27:40,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c [2022-02-09 00:27:40,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c91f4ccb/45e11c8536044bf49eea88f53c956be0/FLAG5b237015d [2022-02-09 00:27:40,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c91f4ccb/45e11c8536044bf49eea88f53c956be0 [2022-02-09 00:27:40,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 00:27:40,890 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 00:27:40,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 00:27:40,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 00:27:40,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 00:27:40,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:27:40" (1/1) ... [2022-02-09 00:27:40,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe76d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:40, skipping insertion in model container [2022-02-09 00:27:40,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:27:40" (1/1) ... [2022-02-09 00:27:40,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 00:27:40,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 00:27:41,093 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-02-09 00:27:41,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 00:27:41,116 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 00:27:41,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-opt-symm.wvr.c[2566,2579] [2022-02-09 00:27:41,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 00:27:41,156 INFO L208 MainTranslator]: Completed translation [2022-02-09 00:27:41,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41 WrapperNode [2022-02-09 00:27:41,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 00:27:41,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 00:27:41,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 00:27:41,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 00:27:41,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41" (1/1) ... [2022-02-09 00:27:41,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41" (1/1) ... [2022-02-09 00:27:41,205 INFO L137 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 182 [2022-02-09 00:27:41,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 00:27:41,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 00:27:41,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 00:27:41,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 00:27:41,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41" (1/1) ... [2022-02-09 00:27:41,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41" (1/1) ... [2022-02-09 00:27:41,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41" (1/1) ... [2022-02-09 00:27:41,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41" (1/1) ... [2022-02-09 00:27:41,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41" (1/1) ... [2022-02-09 00:27:41,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41" (1/1) ... [2022-02-09 00:27:41,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41" (1/1) ... [2022-02-09 00:27:41,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 00:27:41,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 00:27:41,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 00:27:41,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 00:27:41,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41" (1/1) ... [2022-02-09 00:27:41,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 00:27:41,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:27:41,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 00:27:41,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 00:27:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 00:27:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 00:27:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 00:27:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 00:27:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 00:27:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 00:27:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 00:27:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 00:27:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-09 00:27:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 00:27:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 00:27:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 00:27:41,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 00:27:41,301 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 00:27:41,410 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 00:27:41,411 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 00:27:41,701 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 00:27:41,709 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 00:27:41,709 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-09 00:27:41,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:27:41 BoogieIcfgContainer [2022-02-09 00:27:41,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 00:27:41,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 00:27:41,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 00:27:41,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 00:27:41,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 12:27:40" (1/3) ... [2022-02-09 00:27:41,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127674a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:27:41, skipping insertion in model container [2022-02-09 00:27:41,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:27:41" (2/3) ... [2022-02-09 00:27:41,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127674a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:27:41, skipping insertion in model container [2022-02-09 00:27:41,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:27:41" (3/3) ... [2022-02-09 00:27:41,719 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2022-02-09 00:27:41,723 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 00:27:41,723 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 00:27:41,723 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 00:27:41,723 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 00:27:41,771 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,771 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,783 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,784 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,785 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,786 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,787 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,787 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,787 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,787 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,787 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,788 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,788 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,788 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,788 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,788 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,788 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,788 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,788 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,790 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,794 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,795 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,798 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,799 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,800 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,801 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,802 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,805 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~comp~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,806 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,807 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,810 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,811 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,811 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,811 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,811 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,811 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~comp~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,812 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,812 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,812 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,815 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,819 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,820 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:27:41,822 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-09 00:27:41,865 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 00:27:41,871 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 00:27:41,871 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-09 00:27:41,884 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 208 places, 222 transitions, 460 flow [2022-02-09 00:27:42,041 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5325 states, 5324 states have (on average 2.9430879038317053) internal successors, (15669), 5324 states have internal predecessors, (15669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:42,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 5325 states, 5324 states have (on average 2.9430879038317053) internal successors, (15669), 5324 states have internal predecessors, (15669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:42,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-09 00:27:42,093 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:42,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:42,094 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:42,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:42,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1784504573, now seen corresponding path program 1 times [2022-02-09 00:27:42,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:42,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393278471] [2022-02-09 00:27:42,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:42,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:42,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:27:42,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:42,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393278471] [2022-02-09 00:27:42,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393278471] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:42,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:42,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 00:27:42,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093947163] [2022-02-09 00:27:42,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:42,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 00:27:42,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:42,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 00:27:42,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 00:27:42,360 INFO L87 Difference]: Start difference. First operand has 5325 states, 5324 states have (on average 2.9430879038317053) internal successors, (15669), 5324 states have internal predecessors, (15669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:42,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:42,437 INFO L93 Difference]: Finished difference Result 5325 states and 15084 transitions. [2022-02-09 00:27:42,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 00:27:42,439 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-02-09 00:27:42,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:42,480 INFO L225 Difference]: With dead ends: 5325 [2022-02-09 00:27:42,480 INFO L226 Difference]: Without dead ends: 5035 [2022-02-09 00:27:42,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 00:27:42,484 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:42,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:42,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2022-02-09 00:27:42,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 5035. [2022-02-09 00:27:42,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5035 states, 5034 states have (on average 2.8363130711164084) internal successors, (14278), 5034 states have internal predecessors, (14278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:42,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 14278 transitions. [2022-02-09 00:27:42,730 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 14278 transitions. Word has length 127 [2022-02-09 00:27:42,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:42,731 INFO L470 AbstractCegarLoop]: Abstraction has 5035 states and 14278 transitions. [2022-02-09 00:27:42,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 14278 transitions. [2022-02-09 00:27:42,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-02-09 00:27:42,744 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:42,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:42,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 00:27:42,745 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:42,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:42,746 INFO L85 PathProgramCache]: Analyzing trace with hash 987407205, now seen corresponding path program 1 times [2022-02-09 00:27:42,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:42,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064507235] [2022-02-09 00:27:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:42,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:42,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:27:42,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:42,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064507235] [2022-02-09 00:27:42,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064507235] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:42,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:42,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:27:42,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389891013] [2022-02-09 00:27:42,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:42,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:27:42,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:42,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:27:42,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:27:42,915 INFO L87 Difference]: Start difference. First operand 5035 states and 14278 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:43,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:43,046 INFO L93 Difference]: Finished difference Result 5047 states and 14290 transitions. [2022-02-09 00:27:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 00:27:43,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2022-02-09 00:27:43,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:43,068 INFO L225 Difference]: With dead ends: 5047 [2022-02-09 00:27:43,068 INFO L226 Difference]: Without dead ends: 5047 [2022-02-09 00:27:43,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-09 00:27:43,072 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 342 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:43,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 384 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:43,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5047 states. [2022-02-09 00:27:43,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5047 to 5037. [2022-02-09 00:27:43,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5037 states, 5036 states have (on average 2.835583796664019) internal successors, (14280), 5036 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5037 states to 5037 states and 14280 transitions. [2022-02-09 00:27:43,200 INFO L78 Accepts]: Start accepts. Automaton has 5037 states and 14280 transitions. Word has length 127 [2022-02-09 00:27:43,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:43,202 INFO L470 AbstractCegarLoop]: Abstraction has 5037 states and 14280 transitions. [2022-02-09 00:27:43,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:43,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5037 states and 14280 transitions. [2022-02-09 00:27:43,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-02-09 00:27:43,214 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:43,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:43,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 00:27:43,214 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:43,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:43,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1848078548, now seen corresponding path program 1 times [2022-02-09 00:27:43,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:43,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119056575] [2022-02-09 00:27:43,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:43,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:43,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:27:43,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:43,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119056575] [2022-02-09 00:27:43,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119056575] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:27:43,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697185727] [2022-02-09 00:27:43,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:43,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:27:43,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:27:43,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:27:43,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-09 00:27:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:43,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-09 00:27:43,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:27:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:27:43,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:27:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:27:44,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697185727] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:27:44,054 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:27:44,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-02-09 00:27:44,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343946746] [2022-02-09 00:27:44,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:27:44,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 00:27:44,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:44,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 00:27:44,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-02-09 00:27:44,056 INFO L87 Difference]: Start difference. First operand 5037 states and 14280 transitions. Second operand has 15 states, 15 states have (on average 11.866666666666667) internal successors, (178), 15 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:44,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:44,231 INFO L93 Difference]: Finished difference Result 5065 states and 14308 transitions. [2022-02-09 00:27:44,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 00:27:44,231 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.866666666666667) internal successors, (178), 15 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-02-09 00:27:44,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:44,252 INFO L225 Difference]: With dead ends: 5065 [2022-02-09 00:27:44,252 INFO L226 Difference]: Without dead ends: 5065 [2022-02-09 00:27:44,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:27:44,255 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 610 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:44,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [610 Valid, 914 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:27:44,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5065 states. [2022-02-09 00:27:44,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5065 to 5065. [2022-02-09 00:27:44,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5065 states, 5064 states have (on average 2.825434439178515) internal successors, (14308), 5064 states have internal predecessors, (14308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:44,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5065 states to 5065 states and 14308 transitions. [2022-02-09 00:27:44,388 INFO L78 Accepts]: Start accepts. Automaton has 5065 states and 14308 transitions. Word has length 141 [2022-02-09 00:27:44,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:44,388 INFO L470 AbstractCegarLoop]: Abstraction has 5065 states and 14308 transitions. [2022-02-09 00:27:44,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.866666666666667) internal successors, (178), 15 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5065 states and 14308 transitions. [2022-02-09 00:27:44,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-02-09 00:27:44,399 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:44,399 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:44,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-09 00:27:44,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:27:44,616 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:44,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:44,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1234184308, now seen corresponding path program 2 times [2022-02-09 00:27:44,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:44,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561229371] [2022-02-09 00:27:44,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:44,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:44,741 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-09 00:27:44,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:44,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561229371] [2022-02-09 00:27:44,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561229371] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:27:44,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197893056] [2022-02-09 00:27:44,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 00:27:44,744 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:27:44,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:27:44,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:27:44,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 00:27:44,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-02-09 00:27:44,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 00:27:44,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 00:27:44,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:27:45,133 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-09 00:27:45,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-09 00:27:45,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197893056] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:45,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-09 00:27:45,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-02-09 00:27:45,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338719513] [2022-02-09 00:27:45,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:45,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:45,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:45,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:45,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-02-09 00:27:45,141 INFO L87 Difference]: Start difference. First operand 5065 states and 14308 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:45,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:45,311 INFO L93 Difference]: Finished difference Result 8738 states and 24927 transitions. [2022-02-09 00:27:45,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-09 00:27:45,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2022-02-09 00:27:45,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:45,342 INFO L225 Difference]: With dead ends: 8738 [2022-02-09 00:27:45,343 INFO L226 Difference]: Without dead ends: 8738 [2022-02-09 00:27:45,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:27:45,344 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 340 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:45,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [340 Valid, 1126 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:27:45,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2022-02-09 00:27:45,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 5953. [2022-02-09 00:27:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5953 states, 5952 states have (on average 2.827284946236559) internal successors, (16828), 5952 states have internal predecessors, (16828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:45,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5953 states to 5953 states and 16828 transitions. [2022-02-09 00:27:45,492 INFO L78 Accepts]: Start accepts. Automaton has 5953 states and 16828 transitions. Word has length 169 [2022-02-09 00:27:45,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:45,492 INFO L470 AbstractCegarLoop]: Abstraction has 5953 states and 16828 transitions. [2022-02-09 00:27:45,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:45,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5953 states and 16828 transitions. [2022-02-09 00:27:45,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-02-09 00:27:45,503 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:45,503 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:45,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-09 00:27:45,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-02-09 00:27:45,720 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:45,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:45,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1857872626, now seen corresponding path program 3 times [2022-02-09 00:27:45,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:45,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016369728] [2022-02-09 00:27:45,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:45,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-09 00:27:45,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:45,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016369728] [2022-02-09 00:27:45,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016369728] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:27:45,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034023975] [2022-02-09 00:27:45,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 00:27:45,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:27:45,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:27:45,877 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:27:45,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 00:27:45,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-02-09 00:27:45,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 00:27:45,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 00:27:45,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:27:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-09 00:27:46,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-09 00:27:46,270 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034023975] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:46,270 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-09 00:27:46,270 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-02-09 00:27:46,270 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163912829] [2022-02-09 00:27:46,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:46,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:46,270 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:46,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:46,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-02-09 00:27:46,271 INFO L87 Difference]: Start difference. First operand 5953 states and 16828 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:46,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:46,434 INFO L93 Difference]: Finished difference Result 9654 states and 27532 transitions. [2022-02-09 00:27:46,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:46,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2022-02-09 00:27:46,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:46,460 INFO L225 Difference]: With dead ends: 9654 [2022-02-09 00:27:46,460 INFO L226 Difference]: Without dead ends: 9654 [2022-02-09 00:27:46,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-02-09 00:27:46,461 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 323 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:46,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 1200 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:27:46,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9654 states. [2022-02-09 00:27:46,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9654 to 5985. [2022-02-09 00:27:46,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5985 states, 5984 states have (on average 2.8275401069518717) internal successors, (16920), 5984 states have internal predecessors, (16920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5985 states to 5985 states and 16920 transitions. [2022-02-09 00:27:46,605 INFO L78 Accepts]: Start accepts. Automaton has 5985 states and 16920 transitions. Word has length 169 [2022-02-09 00:27:46,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:46,607 INFO L470 AbstractCegarLoop]: Abstraction has 5985 states and 16920 transitions. [2022-02-09 00:27:46,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:46,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5985 states and 16920 transitions. [2022-02-09 00:27:46,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-02-09 00:27:46,618 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:46,618 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:46,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 00:27:46,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:27:46,835 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:46,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:46,836 INFO L85 PathProgramCache]: Analyzing trace with hash 453420382, now seen corresponding path program 4 times [2022-02-09 00:27:46,836 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:46,836 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413758120] [2022-02-09 00:27:46,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:46,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:46,926 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-09 00:27:46,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:46,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413758120] [2022-02-09 00:27:46,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413758120] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:27:46,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441054101] [2022-02-09 00:27:46,926 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 00:27:46,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:27:46,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:27:46,928 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:27:46,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 00:27:47,046 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 00:27:47,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 00:27:47,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-09 00:27:47,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:27:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-09 00:27:47,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:27:47,539 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-09 00:27:47,539 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441054101] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:27:47,539 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:27:47,539 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-02-09 00:27:47,539 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731863766] [2022-02-09 00:27:47,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:27:47,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-09 00:27:47,540 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:47,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-09 00:27:47,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:27:47,541 INFO L87 Difference]: Start difference. First operand 5985 states and 16920 transitions. Second operand has 22 states, 22 states have (on average 9.363636363636363) internal successors, (206), 22 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:47,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:47,777 INFO L93 Difference]: Finished difference Result 6013 states and 16948 transitions. [2022-02-09 00:27:47,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 00:27:47,778 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.363636363636363) internal successors, (206), 22 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2022-02-09 00:27:47,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:47,791 INFO L225 Difference]: With dead ends: 6013 [2022-02-09 00:27:47,791 INFO L226 Difference]: Without dead ends: 6013 [2022-02-09 00:27:47,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 326 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=370, Invalid=890, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:27:47,792 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 937 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:47,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 1225 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:27:47,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2022-02-09 00:27:47,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 6013. [2022-02-09 00:27:47,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 6012 states have (on average 2.8190286094477712) internal successors, (16948), 6012 states have internal predecessors, (16948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:47,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 16948 transitions. [2022-02-09 00:27:47,905 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 16948 transitions. Word has length 169 [2022-02-09 00:27:47,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:47,906 INFO L470 AbstractCegarLoop]: Abstraction has 6013 states and 16948 transitions. [2022-02-09 00:27:47,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.363636363636363) internal successors, (206), 22 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:47,906 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 16948 transitions. [2022-02-09 00:27:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-09 00:27:47,916 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:47,916 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:47,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 00:27:48,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:27:48,132 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:48,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:48,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1083808322, now seen corresponding path program 5 times [2022-02-09 00:27:48,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:48,132 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736021304] [2022-02-09 00:27:48,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:48,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:48,249 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:48,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:48,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736021304] [2022-02-09 00:27:48,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736021304] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:48,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:48,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:48,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154453476] [2022-02-09 00:27:48,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:48,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:48,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:48,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:48,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:48,251 INFO L87 Difference]: Start difference. First operand 6013 states and 16948 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:48,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:48,377 INFO L93 Difference]: Finished difference Result 8978 states and 25546 transitions. [2022-02-09 00:27:48,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:48,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-09 00:27:48,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:48,399 INFO L225 Difference]: With dead ends: 8978 [2022-02-09 00:27:48,399 INFO L226 Difference]: Without dead ends: 8966 [2022-02-09 00:27:48,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-02-09 00:27:48,400 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 287 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:48,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 935 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:48,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8966 states. [2022-02-09 00:27:48,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8966 to 6013. [2022-02-09 00:27:48,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 6012 states have (on average 2.8183632734530937) internal successors, (16944), 6012 states have internal predecessors, (16944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 16944 transitions. [2022-02-09 00:27:48,529 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 16944 transitions. Word has length 197 [2022-02-09 00:27:48,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:48,529 INFO L470 AbstractCegarLoop]: Abstraction has 6013 states and 16944 transitions. [2022-02-09 00:27:48,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:48,529 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 16944 transitions. [2022-02-09 00:27:48,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-09 00:27:48,539 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:48,539 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:48,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-09 00:27:48,539 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:48,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:48,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1457173220, now seen corresponding path program 6 times [2022-02-09 00:27:48,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:48,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733889362] [2022-02-09 00:27:48,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:48,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:48,621 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:48,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:48,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733889362] [2022-02-09 00:27:48,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733889362] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:48,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:48,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:48,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800426049] [2022-02-09 00:27:48,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:48,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:48,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:48,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:48,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:48,622 INFO L87 Difference]: Start difference. First operand 6013 states and 16944 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:48,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:48,729 INFO L93 Difference]: Finished difference Result 10058 states and 28610 transitions. [2022-02-09 00:27:48,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:48,729 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-09 00:27:48,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:48,751 INFO L225 Difference]: With dead ends: 10058 [2022-02-09 00:27:48,751 INFO L226 Difference]: Without dead ends: 10058 [2022-02-09 00:27:48,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-02-09 00:27:48,752 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 218 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:48,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 1110 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:48,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10058 states. [2022-02-09 00:27:48,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10058 to 6109. [2022-02-09 00:27:48,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6109 states, 6108 states have (on average 2.819253438113949) internal successors, (17220), 6108 states have internal predecessors, (17220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:48,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6109 states to 6109 states and 17220 transitions. [2022-02-09 00:27:48,934 INFO L78 Accepts]: Start accepts. Automaton has 6109 states and 17220 transitions. Word has length 197 [2022-02-09 00:27:48,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:48,934 INFO L470 AbstractCegarLoop]: Abstraction has 6109 states and 17220 transitions. [2022-02-09 00:27:48,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:48,934 INFO L276 IsEmpty]: Start isEmpty. Operand 6109 states and 17220 transitions. [2022-02-09 00:27:48,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-09 00:27:48,945 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:48,945 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:48,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-09 00:27:48,945 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:48,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:48,946 INFO L85 PathProgramCache]: Analyzing trace with hash 52720976, now seen corresponding path program 7 times [2022-02-09 00:27:48,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:48,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192020432] [2022-02-09 00:27:48,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:48,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:49,025 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:49,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:49,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192020432] [2022-02-09 00:27:49,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192020432] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:49,025 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:49,025 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:49,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080288018] [2022-02-09 00:27:49,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:49,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:49,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:49,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:49,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:49,027 INFO L87 Difference]: Start difference. First operand 6109 states and 17220 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:49,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:49,142 INFO L93 Difference]: Finished difference Result 10142 states and 28841 transitions. [2022-02-09 00:27:49,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:49,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-09 00:27:49,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:49,165 INFO L225 Difference]: With dead ends: 10142 [2022-02-09 00:27:49,165 INFO L226 Difference]: Without dead ends: 10130 [2022-02-09 00:27:49,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:27:49,166 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 285 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:49,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 1062 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:49,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10130 states. [2022-02-09 00:27:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10130 to 6077. [2022-02-09 00:27:49,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6076 states have (on average 2.8189598420013167) internal successors, (17128), 6076 states have internal predecessors, (17128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:49,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 17128 transitions. [2022-02-09 00:27:49,322 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 17128 transitions. Word has length 197 [2022-02-09 00:27:49,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:49,322 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 17128 transitions. [2022-02-09 00:27:49,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:49,323 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 17128 transitions. [2022-02-09 00:27:49,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-09 00:27:49,332 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:49,333 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:49,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-09 00:27:49,333 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:49,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:49,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1650902898, now seen corresponding path program 8 times [2022-02-09 00:27:49,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:49,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129267215] [2022-02-09 00:27:49,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:49,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:49,397 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:49,397 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:49,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129267215] [2022-02-09 00:27:49,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129267215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:49,397 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:49,397 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:49,397 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819991139] [2022-02-09 00:27:49,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:49,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:49,398 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:49,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:49,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:49,398 INFO L87 Difference]: Start difference. First operand 6077 states and 17128 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:49,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:49,488 INFO L93 Difference]: Finished difference Result 9138 states and 25986 transitions. [2022-02-09 00:27:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:49,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-09 00:27:49,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:49,506 INFO L225 Difference]: With dead ends: 9138 [2022-02-09 00:27:49,506 INFO L226 Difference]: Without dead ends: 9102 [2022-02-09 00:27:49,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:27:49,507 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 178 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:49,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 1140 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:49,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9102 states. [2022-02-09 00:27:49,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9102 to 6077. [2022-02-09 00:27:49,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6076 states have (on average 2.8176431863067806) internal successors, (17120), 6076 states have internal predecessors, (17120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:49,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 17120 transitions. [2022-02-09 00:27:49,652 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 17120 transitions. Word has length 197 [2022-02-09 00:27:49,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:49,652 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 17120 transitions. [2022-02-09 00:27:49,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:49,653 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 17120 transitions. [2022-02-09 00:27:49,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-09 00:27:49,662 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:49,662 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:49,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-09 00:27:49,662 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:49,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:49,663 INFO L85 PathProgramCache]: Analyzing trace with hash -894162494, now seen corresponding path program 9 times [2022-02-09 00:27:49,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:49,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145351121] [2022-02-09 00:27:49,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:49,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:49,733 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:49,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:49,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145351121] [2022-02-09 00:27:49,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145351121] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:49,733 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:49,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:49,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361004843] [2022-02-09 00:27:49,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:49,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:49,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:49,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:49,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:49,735 INFO L87 Difference]: Start difference. First operand 6077 states and 17120 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:49,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:49,845 INFO L93 Difference]: Finished difference Result 9645 states and 27438 transitions. [2022-02-09 00:27:49,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:49,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-09 00:27:49,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:49,865 INFO L225 Difference]: With dead ends: 9645 [2022-02-09 00:27:49,865 INFO L226 Difference]: Without dead ends: 9645 [2022-02-09 00:27:49,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:27:49,866 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 195 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:49,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 987 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:49,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9645 states. [2022-02-09 00:27:49,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9645 to 5328. [2022-02-09 00:27:49,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 5327 states have (on average 2.819598272949127) internal successors, (15020), 5327 states have internal predecessors, (15020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:49,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 15020 transitions. [2022-02-09 00:27:49,994 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 15020 transitions. Word has length 197 [2022-02-09 00:27:49,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:49,994 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 15020 transitions. [2022-02-09 00:27:49,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:49,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 15020 transitions. [2022-02-09 00:27:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-09 00:27:50,003 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:50,003 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:50,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-09 00:27:50,003 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:50,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:50,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1996352558, now seen corresponding path program 10 times [2022-02-09 00:27:50,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:50,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225060147] [2022-02-09 00:27:50,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:50,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:50,074 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:50,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:50,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225060147] [2022-02-09 00:27:50,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225060147] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:50,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:50,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:50,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274372307] [2022-02-09 00:27:50,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:50,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:50,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:50,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:50,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:50,075 INFO L87 Difference]: Start difference. First operand 5328 states and 15020 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:50,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:50,182 INFO L93 Difference]: Finished difference Result 9729 states and 27669 transitions. [2022-02-09 00:27:50,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:50,183 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-09 00:27:50,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:50,201 INFO L225 Difference]: With dead ends: 9729 [2022-02-09 00:27:50,201 INFO L226 Difference]: Without dead ends: 9717 [2022-02-09 00:27:50,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:27:50,202 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 313 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:50,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 1026 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:50,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9717 states. [2022-02-09 00:27:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9717 to 5296. [2022-02-09 00:27:50,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5296 states, 5295 states have (on average 2.8192634560906518) internal successors, (14928), 5295 states have internal predecessors, (14928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5296 states to 5296 states and 14928 transitions. [2022-02-09 00:27:50,350 INFO L78 Accepts]: Start accepts. Automaton has 5296 states and 14928 transitions. Word has length 197 [2022-02-09 00:27:50,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:50,350 INFO L470 AbstractCegarLoop]: Abstraction has 5296 states and 14928 transitions. [2022-02-09 00:27:50,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5296 states and 14928 transitions. [2022-02-09 00:27:50,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-09 00:27:50,357 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:50,358 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:50,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-09 00:27:50,358 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:50,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:50,358 INFO L85 PathProgramCache]: Analyzing trace with hash -700432816, now seen corresponding path program 11 times [2022-02-09 00:27:50,358 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:50,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036539444] [2022-02-09 00:27:50,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:50,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:50,422 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:50,422 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036539444] [2022-02-09 00:27:50,422 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036539444] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:50,422 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:50,422 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:50,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291639031] [2022-02-09 00:27:50,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:50,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:50,423 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:50,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:50,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:50,423 INFO L87 Difference]: Start difference. First operand 5296 states and 14928 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:50,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:50,515 INFO L93 Difference]: Finished difference Result 9645 states and 27422 transitions. [2022-02-09 00:27:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:50,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-09 00:27:50,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:50,533 INFO L225 Difference]: With dead ends: 9645 [2022-02-09 00:27:50,533 INFO L226 Difference]: Without dead ends: 9609 [2022-02-09 00:27:50,534 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-09 00:27:50,534 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 172 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:50,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 1208 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:50,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9609 states. [2022-02-09 00:27:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9609 to 5232. [2022-02-09 00:27:50,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5232 states, 5231 states have (on average 2.8185815331676545) internal successors, (14744), 5231 states have internal predecessors, (14744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:50,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5232 states to 5232 states and 14744 transitions. [2022-02-09 00:27:50,650 INFO L78 Accepts]: Start accepts. Automaton has 5232 states and 14744 transitions. Word has length 197 [2022-02-09 00:27:50,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:50,650 INFO L470 AbstractCegarLoop]: Abstraction has 5232 states and 14744 transitions. [2022-02-09 00:27:50,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:50,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5232 states and 14744 transitions. [2022-02-09 00:27:50,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-09 00:27:50,657 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:50,657 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:50,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-09 00:27:50,658 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:50,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:50,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1635372850, now seen corresponding path program 12 times [2022-02-09 00:27:50,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:50,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096663148] [2022-02-09 00:27:50,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:50,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:50,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:50,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096663148] [2022-02-09 00:27:50,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096663148] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:50,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:50,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:50,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458692100] [2022-02-09 00:27:50,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:50,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:50,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:50,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:50,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:50,731 INFO L87 Difference]: Start difference. First operand 5232 states and 14744 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:50,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:50,821 INFO L93 Difference]: Finished difference Result 10585 states and 29897 transitions. [2022-02-09 00:27:50,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:50,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-09 00:27:50,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:50,841 INFO L225 Difference]: With dead ends: 10585 [2022-02-09 00:27:50,841 INFO L226 Difference]: Without dead ends: 10585 [2022-02-09 00:27:50,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-02-09 00:27:50,842 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 392 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:50,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 839 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:50,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10585 states. [2022-02-09 00:27:51,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10585 to 6246. [2022-02-09 00:27:51,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6246 states, 6245 states have (on average 2.8294635708566855) internal successors, (17670), 6245 states have internal predecessors, (17670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:51,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6246 states to 6246 states and 17670 transitions. [2022-02-09 00:27:51,033 INFO L78 Accepts]: Start accepts. Automaton has 6246 states and 17670 transitions. Word has length 197 [2022-02-09 00:27:51,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:51,033 INFO L470 AbstractCegarLoop]: Abstraction has 6246 states and 17670 transitions. [2022-02-09 00:27:51,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:51,034 INFO L276 IsEmpty]: Start isEmpty. Operand 6246 states and 17670 transitions. [2022-02-09 00:27:51,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-09 00:27:51,042 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:51,042 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:51,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-09 00:27:51,042 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:51,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:51,043 INFO L85 PathProgramCache]: Analyzing trace with hash -550869130, now seen corresponding path program 13 times [2022-02-09 00:27:51,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:51,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962739231] [2022-02-09 00:27:51,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:51,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:51,126 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:51,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:51,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962739231] [2022-02-09 00:27:51,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962739231] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:51,127 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:51,127 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:51,127 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368575020] [2022-02-09 00:27:51,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:51,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:51,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:51,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:51,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:51,128 INFO L87 Difference]: Start difference. First operand 6246 states and 17670 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:51,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:51,217 INFO L93 Difference]: Finished difference Result 11311 states and 32155 transitions. [2022-02-09 00:27:51,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:51,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-09 00:27:51,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:51,240 INFO L225 Difference]: With dead ends: 11311 [2022-02-09 00:27:51,240 INFO L226 Difference]: Without dead ends: 11311 [2022-02-09 00:27:51,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-02-09 00:27:51,243 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 358 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:51,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 792 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:51,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11311 states. [2022-02-09 00:27:51,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11311 to 6190. [2022-02-09 00:27:51,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 6189 states have (on average 2.8301825820003232) internal successors, (17516), 6189 states have internal predecessors, (17516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:51,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 17516 transitions. [2022-02-09 00:27:51,387 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 17516 transitions. Word has length 197 [2022-02-09 00:27:51,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:51,387 INFO L470 AbstractCegarLoop]: Abstraction has 6190 states and 17516 transitions. [2022-02-09 00:27:51,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 17516 transitions. [2022-02-09 00:27:51,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-09 00:27:51,396 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:51,396 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:51,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-09 00:27:51,396 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:51,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:51,397 INFO L85 PathProgramCache]: Analyzing trace with hash -2031567104, now seen corresponding path program 14 times [2022-02-09 00:27:51,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:51,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178942068] [2022-02-09 00:27:51,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:51,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:51,449 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:51,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:51,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178942068] [2022-02-09 00:27:51,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178942068] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:51,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:51,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:51,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772380333] [2022-02-09 00:27:51,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:51,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:51,450 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:51,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:51,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:51,451 INFO L87 Difference]: Start difference. First operand 6190 states and 17516 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:51,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:51,529 INFO L93 Difference]: Finished difference Result 9994 states and 28468 transitions. [2022-02-09 00:27:51,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:51,529 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-09 00:27:51,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:51,548 INFO L225 Difference]: With dead ends: 9994 [2022-02-09 00:27:51,548 INFO L226 Difference]: Without dead ends: 9994 [2022-02-09 00:27:51,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-02-09 00:27:51,549 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 267 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:51,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 824 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:51,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9994 states. [2022-02-09 00:27:51,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9994 to 6190. [2022-02-09 00:27:51,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6190 states, 6189 states have (on average 2.8301825820003232) internal successors, (17516), 6189 states have internal predecessors, (17516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:51,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6190 states to 6190 states and 17516 transitions. [2022-02-09 00:27:51,701 INFO L78 Accepts]: Start accepts. Automaton has 6190 states and 17516 transitions. Word has length 197 [2022-02-09 00:27:51,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:51,702 INFO L470 AbstractCegarLoop]: Abstraction has 6190 states and 17516 transitions. [2022-02-09 00:27:51,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:51,702 INFO L276 IsEmpty]: Start isEmpty. Operand 6190 states and 17516 transitions. [2022-02-09 00:27:51,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-09 00:27:51,710 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:51,710 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:51,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-09 00:27:51,710 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:51,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:51,711 INFO L85 PathProgramCache]: Analyzing trace with hash -697665538, now seen corresponding path program 15 times [2022-02-09 00:27:51,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:51,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185078178] [2022-02-09 00:27:51,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:51,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:51,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:51,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185078178] [2022-02-09 00:27:51,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185078178] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:51,772 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:51,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:51,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095643026] [2022-02-09 00:27:51,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:51,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:51,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:51,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:51,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:51,773 INFO L87 Difference]: Start difference. First operand 6190 states and 17516 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:51,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:51,859 INFO L93 Difference]: Finished difference Result 10757 states and 30680 transitions. [2022-02-09 00:27:51,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:51,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-02-09 00:27:51,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:51,880 INFO L225 Difference]: With dead ends: 10757 [2022-02-09 00:27:51,881 INFO L226 Difference]: Without dead ends: 10757 [2022-02-09 00:27:51,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:27:51,881 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 349 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:51,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 791 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:51,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10757 states. [2022-02-09 00:27:51,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10757 to 5378. [2022-02-09 00:27:52,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.8244374186349264) internal successors, (15187), 5377 states have internal predecessors, (15187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15187 transitions. [2022-02-09 00:27:52,016 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15187 transitions. Word has length 197 [2022-02-09 00:27:52,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:52,016 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15187 transitions. [2022-02-09 00:27:52,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15187 transitions. [2022-02-09 00:27:52,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-09 00:27:52,024 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:52,024 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:52,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-09 00:27:52,024 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:52,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:52,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1998923460, now seen corresponding path program 1 times [2022-02-09 00:27:52,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:52,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649146917] [2022-02-09 00:27:52,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:52,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:52,079 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:52,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:52,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649146917] [2022-02-09 00:27:52,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649146917] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:52,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:52,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:52,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28170810] [2022-02-09 00:27:52,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:52,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:52,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:52,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:52,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:52,081 INFO L87 Difference]: Start difference. First operand 5378 states and 15187 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:52,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:52,167 INFO L93 Difference]: Finished difference Result 9593 states and 26922 transitions. [2022-02-09 00:27:52,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 00:27:52,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-02-09 00:27:52,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:52,186 INFO L225 Difference]: With dead ends: 9593 [2022-02-09 00:27:52,186 INFO L226 Difference]: Without dead ends: 9470 [2022-02-09 00:27:52,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-09 00:27:52,186 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 239 mSDsluCounter, 868 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:52,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 1137 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:52,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9470 states. [2022-02-09 00:27:52,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9470 to 5378. [2022-02-09 00:27:52,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.820345917798029) internal successors, (15165), 5377 states have internal predecessors, (15165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15165 transitions. [2022-02-09 00:27:52,301 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15165 transitions. Word has length 210 [2022-02-09 00:27:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:52,302 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15165 transitions. [2022-02-09 00:27:52,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:52,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15165 transitions. [2022-02-09 00:27:52,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-09 00:27:52,309 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:52,310 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:52,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-09 00:27:52,310 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:52,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:52,310 INFO L85 PathProgramCache]: Analyzing trace with hash 856042914, now seen corresponding path program 2 times [2022-02-09 00:27:52,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:52,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208494676] [2022-02-09 00:27:52,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:52,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:52,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:52,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208494676] [2022-02-09 00:27:52,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208494676] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:52,368 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:52,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:52,368 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939587613] [2022-02-09 00:27:52,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:52,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:52,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:52,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:52,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:52,369 INFO L87 Difference]: Start difference. First operand 5378 states and 15165 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:52,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:52,482 INFO L93 Difference]: Finished difference Result 11347 states and 31759 transitions. [2022-02-09 00:27:52,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:52,482 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-02-09 00:27:52,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:52,503 INFO L225 Difference]: With dead ends: 11347 [2022-02-09 00:27:52,504 INFO L226 Difference]: Without dead ends: 11302 [2022-02-09 00:27:52,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-09 00:27:52,504 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 308 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:52,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 1195 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:52,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11302 states. [2022-02-09 00:27:52,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11302 to 5442. [2022-02-09 00:27:52,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5441 states have (on average 2.8195184708693253) internal successors, (15341), 5441 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:52,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 15341 transitions. [2022-02-09 00:27:52,654 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 15341 transitions. Word has length 210 [2022-02-09 00:27:52,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:52,654 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 15341 transitions. [2022-02-09 00:27:52,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:52,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 15341 transitions. [2022-02-09 00:27:52,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-09 00:27:52,662 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:52,662 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:52,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-09 00:27:52,662 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:52,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:52,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1193971804, now seen corresponding path program 3 times [2022-02-09 00:27:52,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:52,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104622158] [2022-02-09 00:27:52,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:52,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:52,729 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:52,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:52,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104622158] [2022-02-09 00:27:52,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104622158] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:52,729 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:52,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:52,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545929143] [2022-02-09 00:27:52,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:52,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:52,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:52,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:52,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:52,730 INFO L87 Difference]: Start difference. First operand 5442 states and 15341 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:52,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:52,845 INFO L93 Difference]: Finished difference Result 11071 states and 31168 transitions. [2022-02-09 00:27:52,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:52,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-02-09 00:27:52,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:52,865 INFO L225 Difference]: With dead ends: 11071 [2022-02-09 00:27:52,865 INFO L226 Difference]: Without dead ends: 11056 [2022-02-09 00:27:52,865 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:27:52,871 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 373 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:52,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 1009 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:27:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2022-02-09 00:27:52,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 5474. [2022-02-09 00:27:52,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.8191120043851634) internal successors, (15429), 5473 states have internal predecessors, (15429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:53,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15429 transitions. [2022-02-09 00:27:53,002 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15429 transitions. Word has length 210 [2022-02-09 00:27:53,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:53,003 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15429 transitions. [2022-02-09 00:27:53,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:53,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15429 transitions. [2022-02-09 00:27:53,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-09 00:27:53,011 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:53,011 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:53,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-09 00:27:53,011 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:53,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:53,012 INFO L85 PathProgramCache]: Analyzing trace with hash -273025212, now seen corresponding path program 1 times [2022-02-09 00:27:53,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:53,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917370717] [2022-02-09 00:27:53,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:53,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:53,066 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:53,066 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917370717] [2022-02-09 00:27:53,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917370717] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:53,066 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:53,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:53,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992897958] [2022-02-09 00:27:53,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:53,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:53,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:53,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:53,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:53,068 INFO L87 Difference]: Start difference. First operand 5474 states and 15429 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:53,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:53,138 INFO L93 Difference]: Finished difference Result 8999 states and 25587 transitions. [2022-02-09 00:27:53,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:53,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-02-09 00:27:53,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:53,155 INFO L225 Difference]: With dead ends: 8999 [2022-02-09 00:27:53,155 INFO L226 Difference]: Without dead ends: 8915 [2022-02-09 00:27:53,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:27:53,155 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 251 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:53,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 850 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:53,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2022-02-09 00:27:53,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 5474. [2022-02-09 00:27:53,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.8161885620317926) internal successors, (15413), 5473 states have internal predecessors, (15413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:53,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15413 transitions. [2022-02-09 00:27:53,265 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15413 transitions. Word has length 210 [2022-02-09 00:27:53,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:53,265 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15413 transitions. [2022-02-09 00:27:53,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:53,266 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15413 transitions. [2022-02-09 00:27:53,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-09 00:27:53,273 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:53,273 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:53,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-09 00:27:53,273 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:53,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:53,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1505777182, now seen corresponding path program 4 times [2022-02-09 00:27:53,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:53,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862494886] [2022-02-09 00:27:53,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:53,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:53,331 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:53,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:53,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862494886] [2022-02-09 00:27:53,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862494886] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:53,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:53,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:53,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556788565] [2022-02-09 00:27:53,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:53,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:53,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:53,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:53,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:53,332 INFO L87 Difference]: Start difference. First operand 5474 states and 15413 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:53,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:53,431 INFO L93 Difference]: Finished difference Result 10365 states and 29272 transitions. [2022-02-09 00:27:53,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:53,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-02-09 00:27:53,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:53,451 INFO L225 Difference]: With dead ends: 10365 [2022-02-09 00:27:53,452 INFO L226 Difference]: Without dead ends: 10320 [2022-02-09 00:27:53,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:27:53,452 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 230 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:53,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 1224 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:53,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10320 states. [2022-02-09 00:27:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10320 to 5474. [2022-02-09 00:27:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.8147268408551067) internal successors, (15405), 5473 states have internal predecessors, (15405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 15405 transitions. [2022-02-09 00:27:53,611 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 15405 transitions. Word has length 210 [2022-02-09 00:27:53,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:53,611 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 15405 transitions. [2022-02-09 00:27:53,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:53,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 15405 transitions. [2022-02-09 00:27:53,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-09 00:27:53,618 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:53,619 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:53,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-09 00:27:53,619 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:53,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:53,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1167848292, now seen corresponding path program 5 times [2022-02-09 00:27:53,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:53,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531333183] [2022-02-09 00:27:53,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:53,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:53,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:53,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:53,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531333183] [2022-02-09 00:27:53,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531333183] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:53,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:53,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:53,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333957309] [2022-02-09 00:27:53,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:53,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:53,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:53,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:53,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:53,689 INFO L87 Difference]: Start difference. First operand 5474 states and 15405 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:53,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:53,796 INFO L93 Difference]: Finished difference Result 11362 states and 32124 transitions. [2022-02-09 00:27:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:53,796 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-02-09 00:27:53,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:53,815 INFO L225 Difference]: With dead ends: 11362 [2022-02-09 00:27:53,815 INFO L226 Difference]: Without dead ends: 11347 [2022-02-09 00:27:53,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:27:53,816 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 336 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:53,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [336 Valid, 1047 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:53,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2022-02-09 00:27:53,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 5410. [2022-02-09 00:27:53,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.815492697356258) internal successors, (15229), 5409 states have internal predecessors, (15229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:53,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 15229 transitions. [2022-02-09 00:27:53,932 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 15229 transitions. Word has length 210 [2022-02-09 00:27:53,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:53,932 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 15229 transitions. [2022-02-09 00:27:53,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:53,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 15229 transitions. [2022-02-09 00:27:53,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-02-09 00:27:53,940 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:53,940 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:53,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-09 00:27:53,940 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:53,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:53,941 INFO L85 PathProgramCache]: Analyzing trace with hash 473292210, now seen corresponding path program 6 times [2022-02-09 00:27:53,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:53,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502022031] [2022-02-09 00:27:53,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:53,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:54,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:54,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502022031] [2022-02-09 00:27:54,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502022031] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:54,002 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:54,002 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:27:54,002 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734507984] [2022-02-09 00:27:54,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:54,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:27:54,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:54,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:27:54,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:27:54,003 INFO L87 Difference]: Start difference. First operand 5410 states and 15229 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:54,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:54,102 INFO L93 Difference]: Finished difference Result 9843 states and 28001 transitions. [2022-02-09 00:27:54,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:27:54,103 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-02-09 00:27:54,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:54,121 INFO L225 Difference]: With dead ends: 9843 [2022-02-09 00:27:54,121 INFO L226 Difference]: Without dead ends: 9828 [2022-02-09 00:27:54,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-02-09 00:27:54,122 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 301 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:54,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 1105 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:27:54,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9828 states. [2022-02-09 00:27:54,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9828 to 5378. [2022-02-09 00:27:54,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.815138553096522) internal successors, (15137), 5377 states have internal predecessors, (15137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:54,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 15137 transitions. [2022-02-09 00:27:54,239 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 15137 transitions. Word has length 210 [2022-02-09 00:27:54,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:54,239 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 15137 transitions. [2022-02-09 00:27:54,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:54,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 15137 transitions. [2022-02-09 00:27:54,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:27:54,247 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:54,247 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:54,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-09 00:27:54,247 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:54,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:54,247 INFO L85 PathProgramCache]: Analyzing trace with hash 245695604, now seen corresponding path program 1 times [2022-02-09 00:27:54,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:54,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105583977] [2022-02-09 00:27:54,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:54,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:54,656 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:54,657 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:54,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105583977] [2022-02-09 00:27:54,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105583977] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:54,657 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:54,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:27:54,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517311339] [2022-02-09 00:27:54,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:54,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:27:54,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:54,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:27:54,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:27:54,658 INFO L87 Difference]: Start difference. First operand 5378 states and 15137 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:56,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:56,110 INFO L93 Difference]: Finished difference Result 20352 states and 57640 transitions. [2022-02-09 00:27:56,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-09 00:27:56,110 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:27:56,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:56,152 INFO L225 Difference]: With dead ends: 20352 [2022-02-09 00:27:56,152 INFO L226 Difference]: Without dead ends: 20352 [2022-02-09 00:27:56,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=537, Invalid=1913, Unknown=0, NotChecked=0, Total=2450 [2022-02-09 00:27:56,153 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 2304 mSDsluCounter, 4196 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 4523 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:56,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2304 Valid, 4523 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:27:56,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20352 states. [2022-02-09 00:27:56,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20352 to 6848. [2022-02-09 00:27:56,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6848 states, 6847 states have (on average 2.80327150576895) internal successors, (19194), 6847 states have internal predecessors, (19194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:56,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6848 states to 6848 states and 19194 transitions. [2022-02-09 00:27:56,365 INFO L78 Accepts]: Start accepts. Automaton has 6848 states and 19194 transitions. Word has length 223 [2022-02-09 00:27:56,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:56,365 INFO L470 AbstractCegarLoop]: Abstraction has 6848 states and 19194 transitions. [2022-02-09 00:27:56,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:56,365 INFO L276 IsEmpty]: Start isEmpty. Operand 6848 states and 19194 transitions. [2022-02-09 00:27:56,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:27:56,375 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:56,376 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:56,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-09 00:27:56,376 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:56,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:56,376 INFO L85 PathProgramCache]: Analyzing trace with hash -177626872, now seen corresponding path program 2 times [2022-02-09 00:27:56,376 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:56,377 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329782643] [2022-02-09 00:27:56,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:56,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:56,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:56,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329782643] [2022-02-09 00:27:56,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329782643] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:56,768 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:56,768 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:27:56,768 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33798917] [2022-02-09 00:27:56,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:56,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:27:56,769 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:56,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:27:56,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:27:56,769 INFO L87 Difference]: Start difference. First operand 6848 states and 19194 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:58,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:58,052 INFO L93 Difference]: Finished difference Result 19662 states and 55858 transitions. [2022-02-09 00:27:58,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-09 00:27:58,052 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:27:58,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:58,093 INFO L225 Difference]: With dead ends: 19662 [2022-02-09 00:27:58,093 INFO L226 Difference]: Without dead ends: 19662 [2022-02-09 00:27:58,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=471, Invalid=1785, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 00:27:58,094 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1939 mSDsluCounter, 3685 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1939 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:58,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1939 Valid, 4011 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:27:58,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19662 states. [2022-02-09 00:27:58,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19662 to 6884. [2022-02-09 00:27:58,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6884 states, 6883 states have (on average 2.808223158506465) internal successors, (19329), 6883 states have internal predecessors, (19329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6884 states to 6884 states and 19329 transitions. [2022-02-09 00:27:58,313 INFO L78 Accepts]: Start accepts. Automaton has 6884 states and 19329 transitions. Word has length 223 [2022-02-09 00:27:58,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:27:58,313 INFO L470 AbstractCegarLoop]: Abstraction has 6884 states and 19329 transitions. [2022-02-09 00:27:58,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:58,314 INFO L276 IsEmpty]: Start isEmpty. Operand 6884 states and 19329 transitions. [2022-02-09 00:27:58,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:27:58,324 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:27:58,324 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:27:58,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-09 00:27:58,324 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:27:58,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:27:58,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1212045622, now seen corresponding path program 3 times [2022-02-09 00:27:58,325 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:27:58,325 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074512463] [2022-02-09 00:27:58,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:27:58,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:27:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:27:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:27:58,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:27:58,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074512463] [2022-02-09 00:27:58,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074512463] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:27:58,764 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:27:58,764 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:27:58,764 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287679090] [2022-02-09 00:27:58,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:27:58,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:27:58,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:27:58,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:27:58,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:27:58,765 INFO L87 Difference]: Start difference. First operand 6884 states and 19329 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:27:59,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:27:59,937 INFO L93 Difference]: Finished difference Result 15904 states and 45390 transitions. [2022-02-09 00:27:59,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-09 00:27:59,938 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:27:59,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:27:59,970 INFO L225 Difference]: With dead ends: 15904 [2022-02-09 00:27:59,970 INFO L226 Difference]: Without dead ends: 15904 [2022-02-09 00:27:59,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=420, Invalid=1650, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 00:27:59,971 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1569 mSDsluCounter, 3924 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 4210 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:27:59,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1569 Valid, 4210 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:27:59,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15904 states. [2022-02-09 00:28:00,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15904 to 6888. [2022-02-09 00:28:00,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6888 states, 6887 states have (on average 2.8087701466531145) internal successors, (19344), 6887 states have internal predecessors, (19344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:00,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 19344 transitions. [2022-02-09 00:28:00,166 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 19344 transitions. Word has length 223 [2022-02-09 00:28:00,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:00,166 INFO L470 AbstractCegarLoop]: Abstraction has 6888 states and 19344 transitions. [2022-02-09 00:28:00,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:00,167 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 19344 transitions. [2022-02-09 00:28:00,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:00,177 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:00,177 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:00,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-09 00:28:00,177 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:00,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:00,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1115900114, now seen corresponding path program 4 times [2022-02-09 00:28:00,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:00,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981405053] [2022-02-09 00:28:00,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:00,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:00,563 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:00,564 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:00,564 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981405053] [2022-02-09 00:28:00,564 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981405053] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:00,564 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:00,564 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:28:00,564 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178453811] [2022-02-09 00:28:00,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:00,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:28:00,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:00,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:28:00,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:28:00,565 INFO L87 Difference]: Start difference. First operand 6888 states and 19344 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:01,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:01,593 INFO L93 Difference]: Finished difference Result 14204 states and 40300 transitions. [2022-02-09 00:28:01,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-09 00:28:01,594 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:01,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:01,622 INFO L225 Difference]: With dead ends: 14204 [2022-02-09 00:28:01,622 INFO L226 Difference]: Without dead ends: 14204 [2022-02-09 00:28:01,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=376, Invalid=1516, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 00:28:01,623 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 1492 mSDsluCounter, 3719 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 3996 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:01,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1492 Valid, 3996 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:01,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14204 states. [2022-02-09 00:28:01,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14204 to 6892. [2022-02-09 00:28:01,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6892 states, 6891 states have (on average 2.809896967058482) internal successors, (19363), 6891 states have internal predecessors, (19363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:01,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6892 states to 6892 states and 19363 transitions. [2022-02-09 00:28:01,782 INFO L78 Accepts]: Start accepts. Automaton has 6892 states and 19363 transitions. Word has length 223 [2022-02-09 00:28:01,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:01,782 INFO L470 AbstractCegarLoop]: Abstraction has 6892 states and 19363 transitions. [2022-02-09 00:28:01,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 6892 states and 19363 transitions. [2022-02-09 00:28:01,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:01,792 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:01,792 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:01,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-09 00:28:01,793 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:01,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:01,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2075401802, now seen corresponding path program 5 times [2022-02-09 00:28:01,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:01,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178371572] [2022-02-09 00:28:01,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:01,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:02,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:02,216 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178371572] [2022-02-09 00:28:02,216 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178371572] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:02,216 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:02,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:28:02,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473024057] [2022-02-09 00:28:02,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:02,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:28:02,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:02,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:28:02,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:28:02,217 INFO L87 Difference]: Start difference. First operand 6892 states and 19363 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:03,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:03,218 INFO L93 Difference]: Finished difference Result 13944 states and 39604 transitions. [2022-02-09 00:28:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-09 00:28:03,218 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:03,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:03,245 INFO L225 Difference]: With dead ends: 13944 [2022-02-09 00:28:03,246 INFO L226 Difference]: Without dead ends: 13944 [2022-02-09 00:28:03,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=344, Invalid=1296, Unknown=0, NotChecked=0, Total=1640 [2022-02-09 00:28:03,246 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 1495 mSDsluCounter, 3440 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:03,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1495 Valid, 3708 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:03,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13944 states. [2022-02-09 00:28:03,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13944 to 6996. [2022-02-09 00:28:03,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6996 states, 6995 states have (on average 2.81072194424589) internal successors, (19661), 6995 states have internal predecessors, (19661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:03,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6996 states to 6996 states and 19661 transitions. [2022-02-09 00:28:03,407 INFO L78 Accepts]: Start accepts. Automaton has 6996 states and 19661 transitions. Word has length 223 [2022-02-09 00:28:03,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:03,407 INFO L470 AbstractCegarLoop]: Abstraction has 6996 states and 19661 transitions. [2022-02-09 00:28:03,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:03,408 INFO L276 IsEmpty]: Start isEmpty. Operand 6996 states and 19661 transitions. [2022-02-09 00:28:03,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:03,419 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:03,420 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:03,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-09 00:28:03,420 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:03,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:03,420 INFO L85 PathProgramCache]: Analyzing trace with hash 248086366, now seen corresponding path program 6 times [2022-02-09 00:28:03,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:03,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541659405] [2022-02-09 00:28:03,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:03,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:03,774 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:03,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:03,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541659405] [2022-02-09 00:28:03,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541659405] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:03,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:03,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:28:03,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122035976] [2022-02-09 00:28:03,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:03,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:28:03,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:03,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:28:03,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:28:03,776 INFO L87 Difference]: Start difference. First operand 6996 states and 19661 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:04,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:04,866 INFO L93 Difference]: Finished difference Result 21102 states and 60162 transitions. [2022-02-09 00:28:04,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-09 00:28:04,866 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:04,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:04,906 INFO L225 Difference]: With dead ends: 21102 [2022-02-09 00:28:04,906 INFO L226 Difference]: Without dead ends: 21102 [2022-02-09 00:28:04,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=478, Invalid=1778, Unknown=0, NotChecked=0, Total=2256 [2022-02-09 00:28:04,907 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1722 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 4202 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:04,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1722 Valid, 4202 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:28:04,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21102 states. [2022-02-09 00:28:05,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21102 to 7068. [2022-02-09 00:28:05,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7068 states, 7067 states have (on average 2.815197396349229) internal successors, (19895), 7067 states have internal predecessors, (19895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:05,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7068 states to 7068 states and 19895 transitions. [2022-02-09 00:28:05,172 INFO L78 Accepts]: Start accepts. Automaton has 7068 states and 19895 transitions. Word has length 223 [2022-02-09 00:28:05,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:05,173 INFO L470 AbstractCegarLoop]: Abstraction has 7068 states and 19895 transitions. [2022-02-09 00:28:05,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:05,173 INFO L276 IsEmpty]: Start isEmpty. Operand 7068 states and 19895 transitions. [2022-02-09 00:28:05,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:05,183 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:05,183 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:05,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-09 00:28:05,183 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:05,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:05,184 INFO L85 PathProgramCache]: Analyzing trace with hash -786332384, now seen corresponding path program 7 times [2022-02-09 00:28:05,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:05,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795780503] [2022-02-09 00:28:05,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:05,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:05,517 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:05,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:05,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795780503] [2022-02-09 00:28:05,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795780503] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:05,517 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:05,517 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-09 00:28:05,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988138047] [2022-02-09 00:28:05,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:05,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-09 00:28:05,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:05,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-09 00:28:05,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2022-02-09 00:28:05,518 INFO L87 Difference]: Start difference. First operand 7068 states and 19895 transitions. Second operand has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:06,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:06,406 INFO L93 Difference]: Finished difference Result 17996 states and 51659 transitions. [2022-02-09 00:28:06,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-09 00:28:06,407 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:06,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:06,444 INFO L225 Difference]: With dead ends: 17996 [2022-02-09 00:28:06,444 INFO L226 Difference]: Without dead ends: 17996 [2022-02-09 00:28:06,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=425, Invalid=1555, Unknown=0, NotChecked=0, Total=1980 [2022-02-09 00:28:06,445 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 1575 mSDsluCounter, 3118 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:06,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1575 Valid, 3417 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:06,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17996 states. [2022-02-09 00:28:06,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17996 to 7072. [2022-02-09 00:28:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7072 states, 7071 states have (on average 2.815726205628624) internal successors, (19910), 7071 states have internal predecessors, (19910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:06,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7072 states to 7072 states and 19910 transitions. [2022-02-09 00:28:06,634 INFO L78 Accepts]: Start accepts. Automaton has 7072 states and 19910 transitions. Word has length 223 [2022-02-09 00:28:06,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:06,634 INFO L470 AbstractCegarLoop]: Abstraction has 7072 states and 19910 transitions. [2022-02-09 00:28:06,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:06,635 INFO L276 IsEmpty]: Start isEmpty. Operand 7072 states and 19910 transitions. [2022-02-09 00:28:06,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:06,645 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:06,646 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:06,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-09 00:28:06,646 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:06,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:06,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1541613352, now seen corresponding path program 8 times [2022-02-09 00:28:06,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:06,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713087778] [2022-02-09 00:28:06,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:06,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:07,009 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:07,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:07,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713087778] [2022-02-09 00:28:07,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713087778] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:07,010 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:07,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-09 00:28:07,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894231091] [2022-02-09 00:28:07,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:07,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-09 00:28:07,010 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:07,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-09 00:28:07,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-02-09 00:28:07,011 INFO L87 Difference]: Start difference. First operand 7072 states and 19910 transitions. Second operand has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:07,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:07,847 INFO L93 Difference]: Finished difference Result 16296 states and 46569 transitions. [2022-02-09 00:28:07,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-09 00:28:07,847 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:07,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:07,881 INFO L225 Difference]: With dead ends: 16296 [2022-02-09 00:28:07,881 INFO L226 Difference]: Without dead ends: 16296 [2022-02-09 00:28:07,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=380, Invalid=1426, Unknown=0, NotChecked=0, Total=1806 [2022-02-09 00:28:07,882 INFO L933 BasicCegarLoop]: 341 mSDtfsCounter, 1334 mSDsluCounter, 3214 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 3504 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:07,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1334 Valid, 3504 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:07,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2022-02-09 00:28:08,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 7076. [2022-02-09 00:28:08,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7076 states, 7075 states have (on average 2.8168197879858656) internal successors, (19929), 7075 states have internal predecessors, (19929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:08,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7076 states to 7076 states and 19929 transitions. [2022-02-09 00:28:08,054 INFO L78 Accepts]: Start accepts. Automaton has 7076 states and 19929 transitions. Word has length 223 [2022-02-09 00:28:08,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:08,055 INFO L470 AbstractCegarLoop]: Abstraction has 7076 states and 19929 transitions. [2022-02-09 00:28:08,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:08,055 INFO L276 IsEmpty]: Start isEmpty. Operand 7076 states and 19929 transitions. [2022-02-09 00:28:08,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:08,065 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:08,065 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:08,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-09 00:28:08,066 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:08,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:08,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1793852256, now seen corresponding path program 9 times [2022-02-09 00:28:08,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:08,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119281801] [2022-02-09 00:28:08,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:08,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:08,389 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:08,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:08,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119281801] [2022-02-09 00:28:08,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119281801] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:08,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:08,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-09 00:28:08,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537116102] [2022-02-09 00:28:08,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:08,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-09 00:28:08,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:08,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-09 00:28:08,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-02-09 00:28:08,391 INFO L87 Difference]: Start difference. First operand 7076 states and 19929 transitions. Second operand has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:09,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:09,186 INFO L93 Difference]: Finished difference Result 16036 states and 45873 transitions. [2022-02-09 00:28:09,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-09 00:28:09,187 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:09,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:09,220 INFO L225 Difference]: With dead ends: 16036 [2022-02-09 00:28:09,220 INFO L226 Difference]: Without dead ends: 16036 [2022-02-09 00:28:09,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=390, Invalid=1416, Unknown=0, NotChecked=0, Total=1806 [2022-02-09 00:28:09,221 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 1346 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 3120 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:09,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1346 Valid, 3120 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:09,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16036 states. [2022-02-09 00:28:09,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16036 to 7032. [2022-02-09 00:28:09,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7032 states, 7031 states have (on average 2.8104110368368653) internal successors, (19760), 7031 states have internal predecessors, (19760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:09,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7032 states to 7032 states and 19760 transitions. [2022-02-09 00:28:09,397 INFO L78 Accepts]: Start accepts. Automaton has 7032 states and 19760 transitions. Word has length 223 [2022-02-09 00:28:09,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:09,398 INFO L470 AbstractCegarLoop]: Abstraction has 7032 states and 19760 transitions. [2022-02-09 00:28:09,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.35) internal successors, (167), 20 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:09,398 INFO L276 IsEmpty]: Start isEmpty. Operand 7032 states and 19760 transitions. [2022-02-09 00:28:09,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:09,408 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:09,409 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:09,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-09 00:28:09,409 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:09,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:09,409 INFO L85 PathProgramCache]: Analyzing trace with hash 559291998, now seen corresponding path program 10 times [2022-02-09 00:28:09,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:09,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321215050] [2022-02-09 00:28:09,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:09,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:09,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:09,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321215050] [2022-02-09 00:28:09,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321215050] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:09,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:09,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:28:09,778 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109381494] [2022-02-09 00:28:09,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:09,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:28:09,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:09,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:28:09,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:28:09,779 INFO L87 Difference]: Start difference. First operand 7032 states and 19760 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:10,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:10,729 INFO L93 Difference]: Finished difference Result 16588 states and 47447 transitions. [2022-02-09 00:28:10,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-09 00:28:10,730 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:10,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:10,763 INFO L225 Difference]: With dead ends: 16588 [2022-02-09 00:28:10,763 INFO L226 Difference]: Without dead ends: 16588 [2022-02-09 00:28:10,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=429, Invalid=1641, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 00:28:10,764 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 1380 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 3451 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:10,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1380 Valid, 3451 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:10,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16588 states. [2022-02-09 00:28:10,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16588 to 7040. [2022-02-09 00:28:10,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 7039 states have (on average 2.8109106407160107) internal successors, (19786), 7039 states have internal predecessors, (19786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:10,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 19786 transitions. [2022-02-09 00:28:10,948 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 19786 transitions. Word has length 223 [2022-02-09 00:28:10,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:10,948 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 19786 transitions. [2022-02-09 00:28:10,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:10,948 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 19786 transitions. [2022-02-09 00:28:10,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:10,958 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:10,959 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:10,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-09 00:28:10,959 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:10,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:10,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1407729562, now seen corresponding path program 11 times [2022-02-09 00:28:10,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:10,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107609] [2022-02-09 00:28:10,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:10,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:11,277 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:11,277 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:11,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107609] [2022-02-09 00:28:11,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107609] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:11,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:11,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:28:11,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454428422] [2022-02-09 00:28:11,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:11,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:28:11,278 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:11,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:28:11,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:28:11,279 INFO L87 Difference]: Start difference. First operand 7040 states and 19786 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:12,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:12,093 INFO L93 Difference]: Finished difference Result 15344 states and 43775 transitions. [2022-02-09 00:28:12,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-09 00:28:12,093 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:12,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:12,124 INFO L225 Difference]: With dead ends: 15344 [2022-02-09 00:28:12,124 INFO L226 Difference]: Without dead ends: 15344 [2022-02-09 00:28:12,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 00:28:12,125 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 1428 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:12,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1428 Valid, 3218 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:12,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15344 states. [2022-02-09 00:28:12,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15344 to 7044. [2022-02-09 00:28:12,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7044 states, 7043 states have (on average 2.812011926735766) internal successors, (19805), 7043 states have internal predecessors, (19805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:12,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 19805 transitions. [2022-02-09 00:28:12,353 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 19805 transitions. Word has length 223 [2022-02-09 00:28:12,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:12,353 INFO L470 AbstractCegarLoop]: Abstraction has 7044 states and 19805 transitions. [2022-02-09 00:28:12,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:12,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 19805 transitions. [2022-02-09 00:28:12,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:12,364 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:12,364 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:12,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-09 00:28:12,364 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:12,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:12,365 INFO L85 PathProgramCache]: Analyzing trace with hash -448227874, now seen corresponding path program 12 times [2022-02-09 00:28:12,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:12,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835421012] [2022-02-09 00:28:12,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:12,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:12,708 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:12,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:12,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835421012] [2022-02-09 00:28:12,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835421012] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:12,709 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:12,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:28:12,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78687120] [2022-02-09 00:28:12,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:12,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:28:12,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:12,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:28:12,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:28:12,710 INFO L87 Difference]: Start difference. First operand 7044 states and 19805 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:13,541 INFO L93 Difference]: Finished difference Result 15084 states and 43079 transitions. [2022-02-09 00:28:13,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-09 00:28:13,542 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:13,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:13,571 INFO L225 Difference]: With dead ends: 15084 [2022-02-09 00:28:13,571 INFO L226 Difference]: Without dead ends: 15084 [2022-02-09 00:28:13,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=395, Invalid=1497, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 00:28:13,572 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1535 mSDsluCounter, 2698 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 2974 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:13,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1535 Valid, 2974 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:13,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15084 states. [2022-02-09 00:28:13,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15084 to 7036. [2022-02-09 00:28:13,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7036 states, 7035 states have (on average 2.8103766879886285) internal successors, (19771), 7035 states have internal predecessors, (19771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:13,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 19771 transitions. [2022-02-09 00:28:13,738 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 19771 transitions. Word has length 223 [2022-02-09 00:28:13,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:13,738 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 19771 transitions. [2022-02-09 00:28:13,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:13,739 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 19771 transitions. [2022-02-09 00:28:13,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:13,749 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:13,749 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:13,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-09 00:28:13,749 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:13,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:13,750 INFO L85 PathProgramCache]: Analyzing trace with hash -526466794, now seen corresponding path program 13 times [2022-02-09 00:28:13,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:13,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416896139] [2022-02-09 00:28:13,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:13,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:14,085 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:14,086 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:14,086 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416896139] [2022-02-09 00:28:14,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416896139] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:14,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:14,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:28:14,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787469333] [2022-02-09 00:28:14,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:14,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:28:14,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:14,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:28:14,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:28:14,087 INFO L87 Difference]: Start difference. First operand 7036 states and 19771 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:14,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:14,967 INFO L93 Difference]: Finished difference Result 14852 states and 42250 transitions. [2022-02-09 00:28:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-09 00:28:14,968 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:14,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:14,999 INFO L225 Difference]: With dead ends: 14852 [2022-02-09 00:28:14,999 INFO L226 Difference]: Without dead ends: 14852 [2022-02-09 00:28:14,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=385, Invalid=1507, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 00:28:15,000 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 1315 mSDsluCounter, 3228 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 3492 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:15,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1315 Valid, 3492 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1034 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:15,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14852 states. [2022-02-09 00:28:15,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14852 to 7044. [2022-02-09 00:28:15,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7044 states, 7043 states have (on average 2.812011926735766) internal successors, (19805), 7043 states have internal predecessors, (19805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:15,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 19805 transitions. [2022-02-09 00:28:15,180 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 19805 transitions. Word has length 223 [2022-02-09 00:28:15,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:15,181 INFO L470 AbstractCegarLoop]: Abstraction has 7044 states and 19805 transitions. [2022-02-09 00:28:15,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:15,181 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 19805 transitions. [2022-02-09 00:28:15,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:15,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:15,192 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:15,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-09 00:28:15,192 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:15,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:15,193 INFO L85 PathProgramCache]: Analyzing trace with hash 433034894, now seen corresponding path program 14 times [2022-02-09 00:28:15,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:15,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083777970] [2022-02-09 00:28:15,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:15,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:15,519 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:15,519 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:15,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083777970] [2022-02-09 00:28:15,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083777970] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:15,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:15,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:28:15,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976679116] [2022-02-09 00:28:15,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:15,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:28:15,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:15,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:28:15,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:28:15,522 INFO L87 Difference]: Start difference. First operand 7044 states and 19805 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:16,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:16,411 INFO L93 Difference]: Finished difference Result 14676 states and 41797 transitions. [2022-02-09 00:28:16,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-09 00:28:16,411 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:16,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:16,440 INFO L225 Difference]: With dead ends: 14676 [2022-02-09 00:28:16,440 INFO L226 Difference]: Without dead ends: 14676 [2022-02-09 00:28:16,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=395, Invalid=1497, Unknown=0, NotChecked=0, Total=1892 [2022-02-09 00:28:16,442 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 1301 mSDsluCounter, 3287 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 3556 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:16,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1301 Valid, 3556 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:16,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14676 states. [2022-02-09 00:28:16,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14676 to 7040. [2022-02-09 00:28:16,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 7039 states have (on average 2.8109106407160107) internal successors, (19786), 7039 states have internal predecessors, (19786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:16,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 19786 transitions. [2022-02-09 00:28:16,603 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 19786 transitions. Word has length 223 [2022-02-09 00:28:16,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:16,603 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 19786 transitions. [2022-02-09 00:28:16,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:16,604 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 19786 transitions. [2022-02-09 00:28:16,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:16,615 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:16,615 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:16,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-09 00:28:16,615 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:16,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:16,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1262740864, now seen corresponding path program 15 times [2022-02-09 00:28:16,616 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:16,616 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710736767] [2022-02-09 00:28:16,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:16,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:16,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:16,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710736767] [2022-02-09 00:28:16,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710736767] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:16,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:16,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:28:16,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568883881] [2022-02-09 00:28:16,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:16,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:28:16,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:28:16,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:28:16,952 INFO L87 Difference]: Start difference. First operand 7040 states and 19786 transitions. Second operand has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:17,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:17,852 INFO L93 Difference]: Finished difference Result 15708 states and 44747 transitions. [2022-02-09 00:28:17,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-09 00:28:17,852 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:17,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:17,927 INFO L225 Difference]: With dead ends: 15708 [2022-02-09 00:28:17,928 INFO L226 Difference]: Without dead ends: 15708 [2022-02-09 00:28:17,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=449, Invalid=1621, Unknown=0, NotChecked=0, Total=2070 [2022-02-09 00:28:17,928 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 1587 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 3171 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:17,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1587 Valid, 3171 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:17,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15708 states. [2022-02-09 00:28:18,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15708 to 7144. [2022-02-09 00:28:18,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7144 states, 7143 states have (on average 2.8117037659246815) internal successors, (20084), 7143 states have internal predecessors, (20084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7144 states to 7144 states and 20084 transitions. [2022-02-09 00:28:18,078 INFO L78 Accepts]: Start accepts. Automaton has 7144 states and 20084 transitions. Word has length 223 [2022-02-09 00:28:18,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:18,078 INFO L470 AbstractCegarLoop]: Abstraction has 7144 states and 20084 transitions. [2022-02-09 00:28:18,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.9523809523809526) internal successors, (167), 21 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:18,078 INFO L276 IsEmpty]: Start isEmpty. Operand 7144 states and 20084 transitions. [2022-02-09 00:28:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:18,089 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:18,089 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:18,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-09 00:28:18,089 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:18,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:18,090 INFO L85 PathProgramCache]: Analyzing trace with hash 550123268, now seen corresponding path program 16 times [2022-02-09 00:28:18,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:18,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411986649] [2022-02-09 00:28:18,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:18,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:18,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:18,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411986649] [2022-02-09 00:28:18,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411986649] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:18,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:18,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:18,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224912404] [2022-02-09 00:28:18,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:18,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:18,319 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:18,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:18,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:18,319 INFO L87 Difference]: Start difference. First operand 7144 states and 20084 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:19,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:19,056 INFO L93 Difference]: Finished difference Result 24183 states and 68741 transitions. [2022-02-09 00:28:19,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-09 00:28:19,056 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:19,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:19,103 INFO L225 Difference]: With dead ends: 24183 [2022-02-09 00:28:19,104 INFO L226 Difference]: Without dead ends: 24183 [2022-02-09 00:28:19,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=337, Invalid=1069, Unknown=0, NotChecked=0, Total=1406 [2022-02-09 00:28:19,104 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1579 mSDsluCounter, 3609 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:19,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1579 Valid, 3954 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:19,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2022-02-09 00:28:19,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 7540. [2022-02-09 00:28:19,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7540 states, 7539 states have (on average 2.8132378299509218) internal successors, (21209), 7539 states have internal predecessors, (21209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:19,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 21209 transitions. [2022-02-09 00:28:19,345 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 21209 transitions. Word has length 223 [2022-02-09 00:28:19,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:19,345 INFO L470 AbstractCegarLoop]: Abstraction has 7540 states and 21209 transitions. [2022-02-09 00:28:19,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:19,345 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 21209 transitions. [2022-02-09 00:28:19,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:19,356 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:19,356 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:19,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-09 00:28:19,356 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:19,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:19,357 INFO L85 PathProgramCache]: Analyzing trace with hash -484295482, now seen corresponding path program 17 times [2022-02-09 00:28:19,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:19,357 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628682523] [2022-02-09 00:28:19,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:19,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:19,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:19,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628682523] [2022-02-09 00:28:19,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628682523] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:19,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:19,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:19,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111889868] [2022-02-09 00:28:19,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:19,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:19,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:19,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:19,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:19,588 INFO L87 Difference]: Start difference. First operand 7540 states and 21209 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:20,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:20,220 INFO L93 Difference]: Finished difference Result 21077 states and 60238 transitions. [2022-02-09 00:28:20,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:28:20,220 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:20,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:20,262 INFO L225 Difference]: With dead ends: 21077 [2022-02-09 00:28:20,262 INFO L226 Difference]: Without dead ends: 21077 [2022-02-09 00:28:20,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=967, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:28:20,263 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1044 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:20,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1044 Valid, 3375 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:20,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21077 states. [2022-02-09 00:28:20,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21077 to 7544. [2022-02-09 00:28:20,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 7543 states have (on average 2.813734588360069) internal successors, (21224), 7543 states have internal predecessors, (21224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 21224 transitions. [2022-02-09 00:28:20,493 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 21224 transitions. Word has length 223 [2022-02-09 00:28:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:20,494 INFO L470 AbstractCegarLoop]: Abstraction has 7544 states and 21224 transitions. [2022-02-09 00:28:20,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:20,494 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 21224 transitions. [2022-02-09 00:28:20,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:20,505 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:20,505 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:20,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-09 00:28:20,505 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:20,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:20,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1843650254, now seen corresponding path program 18 times [2022-02-09 00:28:20,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:20,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675076066] [2022-02-09 00:28:20,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:20,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:20,728 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:20,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:20,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675076066] [2022-02-09 00:28:20,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675076066] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:20,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:20,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:20,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165962461] [2022-02-09 00:28:20,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:20,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:20,729 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:20,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:20,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:20,729 INFO L87 Difference]: Start difference. First operand 7544 states and 21224 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:21,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:21,341 INFO L93 Difference]: Finished difference Result 19377 states and 55148 transitions. [2022-02-09 00:28:21,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:21,342 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:21,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:21,382 INFO L225 Difference]: With dead ends: 19377 [2022-02-09 00:28:21,382 INFO L226 Difference]: Without dead ends: 19377 [2022-02-09 00:28:21,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:21,383 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 1367 mSDsluCounter, 3335 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 3644 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:21,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1367 Valid, 3644 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:21,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19377 states. [2022-02-09 00:28:21,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19377 to 7548. [2022-02-09 00:28:21,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7548 states, 7547 states have (on average 2.8147608321187225) internal successors, (21243), 7547 states have internal predecessors, (21243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:21,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7548 states to 7548 states and 21243 transitions. [2022-02-09 00:28:21,598 INFO L78 Accepts]: Start accepts. Automaton has 7548 states and 21243 transitions. Word has length 223 [2022-02-09 00:28:21,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:21,598 INFO L470 AbstractCegarLoop]: Abstraction has 7548 states and 21243 transitions. [2022-02-09 00:28:21,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:21,598 INFO L276 IsEmpty]: Start isEmpty. Operand 7548 states and 21243 transitions. [2022-02-09 00:28:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:21,609 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:21,610 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:21,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-09 00:28:21,610 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:21,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1491815354, now seen corresponding path program 19 times [2022-02-09 00:28:21,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:21,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196164807] [2022-02-09 00:28:21,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:21,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:21,843 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:21,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:21,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196164807] [2022-02-09 00:28:21,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196164807] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:21,843 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:21,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:21,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600122544] [2022-02-09 00:28:21,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:21,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:21,844 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:21,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:21,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:21,845 INFO L87 Difference]: Start difference. First operand 7548 states and 21243 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:22,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:22,421 INFO L93 Difference]: Finished difference Result 19117 states and 54452 transitions. [2022-02-09 00:28:22,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:22,421 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:22,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:22,459 INFO L225 Difference]: With dead ends: 19117 [2022-02-09 00:28:22,459 INFO L226 Difference]: Without dead ends: 19117 [2022-02-09 00:28:22,460 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:22,460 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1173 mSDsluCounter, 2936 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:22,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 3242 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:22,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19117 states. [2022-02-09 00:28:22,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19117 to 7504. [2022-02-09 00:28:22,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 7503 states have (on average 2.808743169398907) internal successors, (21074), 7503 states have internal predecessors, (21074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:22,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 21074 transitions. [2022-02-09 00:28:22,690 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 21074 transitions. Word has length 223 [2022-02-09 00:28:22,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:22,691 INFO L470 AbstractCegarLoop]: Abstraction has 7504 states and 21074 transitions. [2022-02-09 00:28:22,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:22,691 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 21074 transitions. [2022-02-09 00:28:22,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:22,702 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:22,702 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:22,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-09 00:28:22,702 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:22,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:22,703 INFO L85 PathProgramCache]: Analyzing trace with hash 861328900, now seen corresponding path program 20 times [2022-02-09 00:28:22,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:22,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907993269] [2022-02-09 00:28:22,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:22,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:22,954 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:22,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:22,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907993269] [2022-02-09 00:28:22,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907993269] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:22,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:22,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:22,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149718991] [2022-02-09 00:28:22,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:22,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:22,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:22,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:22,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:22,955 INFO L87 Difference]: Start difference. First operand 7504 states and 21074 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:23,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:23,640 INFO L93 Difference]: Finished difference Result 21573 states and 61766 transitions. [2022-02-09 00:28:23,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:28:23,641 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:23,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:23,684 INFO L225 Difference]: With dead ends: 21573 [2022-02-09 00:28:23,684 INFO L226 Difference]: Without dead ends: 21573 [2022-02-09 00:28:23,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:28:23,685 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1381 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 3358 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:23,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 3358 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:23,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21573 states. [2022-02-09 00:28:23,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21573 to 7512. [2022-02-09 00:28:23,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:23,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-02-09 00:28:23,909 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-02-09 00:28:23,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:23,909 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-02-09 00:28:23,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:23,909 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-02-09 00:28:23,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:23,920 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:23,920 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:23,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-09 00:28:23,921 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:23,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:23,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1105692660, now seen corresponding path program 21 times [2022-02-09 00:28:23,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:23,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898575167] [2022-02-09 00:28:23,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:23,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:24,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:24,162 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898575167] [2022-02-09 00:28:24,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898575167] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:24,162 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:24,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:24,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356996613] [2022-02-09 00:28:24,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:24,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:24,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:24,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:24,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:24,163 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:24,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:24,743 INFO L93 Difference]: Finished difference Result 20329 states and 58094 transitions. [2022-02-09 00:28:24,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:24,743 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:24,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:24,787 INFO L225 Difference]: With dead ends: 20329 [2022-02-09 00:28:24,787 INFO L226 Difference]: Without dead ends: 20329 [2022-02-09 00:28:24,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:24,788 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 1303 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:24,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1303 Valid, 2942 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:24,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20329 states. [2022-02-09 00:28:25,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20329 to 7516. [2022-02-09 00:28:25,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-02-09 00:28:25,059 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-02-09 00:28:25,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:25,059 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-02-09 00:28:25,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-02-09 00:28:25,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:25,070 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:25,070 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:25,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-09 00:28:25,071 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:25,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:25,071 INFO L85 PathProgramCache]: Analyzing trace with hash -146190972, now seen corresponding path program 22 times [2022-02-09 00:28:25,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:25,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455878374] [2022-02-09 00:28:25,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:25,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:25,330 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:25,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:25,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455878374] [2022-02-09 00:28:25,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455878374] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:25,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:25,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:25,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493095187] [2022-02-09 00:28:25,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:25,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:25,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:25,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:25,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:25,331 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:25,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:25,872 INFO L93 Difference]: Finished difference Result 20069 states and 57398 transitions. [2022-02-09 00:28:25,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:25,873 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:25,912 INFO L225 Difference]: With dead ends: 20069 [2022-02-09 00:28:25,912 INFO L226 Difference]: Without dead ends: 20069 [2022-02-09 00:28:25,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:25,913 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 1200 mSDsluCounter, 2707 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 3015 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:25,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1200 Valid, 3015 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:25,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20069 states. [2022-02-09 00:28:26,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20069 to 7508. [2022-02-09 00:28:26,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7508 states, 7507 states have (on average 2.808711868922339) internal successors, (21085), 7507 states have internal predecessors, (21085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:26,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 21085 transitions. [2022-02-09 00:28:26,118 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 21085 transitions. Word has length 223 [2022-02-09 00:28:26,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:26,118 INFO L470 AbstractCegarLoop]: Abstraction has 7508 states and 21085 transitions. [2022-02-09 00:28:26,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:26,119 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 21085 transitions. [2022-02-09 00:28:26,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:26,129 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:26,129 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:26,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-09 00:28:26,130 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:26,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:26,130 INFO L85 PathProgramCache]: Analyzing trace with hash -224429892, now seen corresponding path program 23 times [2022-02-09 00:28:26,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:26,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982074565] [2022-02-09 00:28:26,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:26,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:26,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:26,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982074565] [2022-02-09 00:28:26,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982074565] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:26,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:26,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:26,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135093980] [2022-02-09 00:28:26,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:26,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:26,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:26,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:26,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:26,361 INFO L87 Difference]: Start difference. First operand 7508 states and 21085 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:26,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:26,899 INFO L93 Difference]: Finished difference Result 19837 states and 56569 transitions. [2022-02-09 00:28:26,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:26,900 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:26,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:26,937 INFO L225 Difference]: With dead ends: 19837 [2022-02-09 00:28:26,937 INFO L226 Difference]: Without dead ends: 19837 [2022-02-09 00:28:26,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:26,938 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 1096 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:26,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 3231 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:26,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19837 states. [2022-02-09 00:28:27,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19837 to 7516. [2022-02-09 00:28:27,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-02-09 00:28:27,146 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-02-09 00:28:27,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:27,146 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-02-09 00:28:27,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:27,146 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-02-09 00:28:27,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:27,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:27,182 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:27,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-09 00:28:27,183 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:27,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:27,183 INFO L85 PathProgramCache]: Analyzing trace with hash 735071796, now seen corresponding path program 24 times [2022-02-09 00:28:27,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:27,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424441529] [2022-02-09 00:28:27,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:27,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:27,429 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:27,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:27,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424441529] [2022-02-09 00:28:27,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424441529] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:27,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:27,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:27,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697093595] [2022-02-09 00:28:27,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:27,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:27,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:27,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:27,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:27,431 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:27,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:27,998 INFO L93 Difference]: Finished difference Result 19661 states and 56116 transitions. [2022-02-09 00:28:27,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:27,998 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:27,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:28,038 INFO L225 Difference]: With dead ends: 19661 [2022-02-09 00:28:28,038 INFO L226 Difference]: Without dead ends: 19661 [2022-02-09 00:28:28,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:28,039 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 947 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:28,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [947 Valid, 3148 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 827 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:28,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19661 states. [2022-02-09 00:28:28,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19661 to 7512. [2022-02-09 00:28:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:28,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-02-09 00:28:28,237 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-02-09 00:28:28,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:28,237 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-02-09 00:28:28,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:28,237 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-02-09 00:28:28,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:28,248 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:28,249 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:28,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-09 00:28:28,249 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:28,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:28,249 INFO L85 PathProgramCache]: Analyzing trace with hash -960703962, now seen corresponding path program 25 times [2022-02-09 00:28:28,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:28,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870302359] [2022-02-09 00:28:28,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:28,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:28,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:28,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870302359] [2022-02-09 00:28:28,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870302359] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:28,484 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:28,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:28,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183388569] [2022-02-09 00:28:28,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:28,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:28,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:28,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:28,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:28,485 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:29,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:29,096 INFO L93 Difference]: Finished difference Result 20797 states and 59364 transitions. [2022-02-09 00:28:29,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:28:29,096 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:29,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:29,137 INFO L225 Difference]: With dead ends: 20797 [2022-02-09 00:28:29,137 INFO L226 Difference]: Without dead ends: 20797 [2022-02-09 00:28:29,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:28:29,138 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1160 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:29,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 3410 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:29,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20797 states. [2022-02-09 00:28:29,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20797 to 7468. [2022-02-09 00:28:29,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7468 states, 7467 states have (on average 2.80902638275077) internal successors, (20975), 7467 states have internal predecessors, (20975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:29,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7468 states to 7468 states and 20975 transitions. [2022-02-09 00:28:29,349 INFO L78 Accepts]: Start accepts. Automaton has 7468 states and 20975 transitions. Word has length 223 [2022-02-09 00:28:29,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:29,349 INFO L470 AbstractCegarLoop]: Abstraction has 7468 states and 20975 transitions. [2022-02-09 00:28:29,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:29,349 INFO L276 IsEmpty]: Start isEmpty. Operand 7468 states and 20975 transitions. [2022-02-09 00:28:29,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:29,360 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:29,360 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:29,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-09 00:28:29,360 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:29,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:29,361 INFO L85 PathProgramCache]: Analyzing trace with hash -353734266, now seen corresponding path program 26 times [2022-02-09 00:28:29,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:29,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725062586] [2022-02-09 00:28:29,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:29,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:29,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:29,671 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:29,671 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:29,671 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725062586] [2022-02-09 00:28:29,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725062586] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:29,671 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:29,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:29,671 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640209072] [2022-02-09 00:28:29,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:29,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:29,672 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:29,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:29,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:29,672 INFO L87 Difference]: Start difference. First operand 7468 states and 20975 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:30,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:30,360 INFO L93 Difference]: Finished difference Result 19585 states and 55795 transitions. [2022-02-09 00:28:30,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:28:30,360 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:30,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:30,400 INFO L225 Difference]: With dead ends: 19585 [2022-02-09 00:28:30,400 INFO L226 Difference]: Without dead ends: 19585 [2022-02-09 00:28:30,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=300, Invalid=960, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:28:30,401 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1040 mSDsluCounter, 3421 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 3709 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:30,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 3709 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:30,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19585 states. [2022-02-09 00:28:30,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19585 to 7512. [2022-02-09 00:28:30,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:30,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-02-09 00:28:30,605 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-02-09 00:28:30,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:30,605 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-02-09 00:28:30,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:30,606 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-02-09 00:28:30,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:30,617 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:30,617 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:30,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-09 00:28:30,617 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:30,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:30,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1974211470, now seen corresponding path program 27 times [2022-02-09 00:28:30,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:30,618 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7675457] [2022-02-09 00:28:30,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:30,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:30,846 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:30,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:30,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7675457] [2022-02-09 00:28:30,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7675457] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:30,847 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:30,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:30,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936473713] [2022-02-09 00:28:30,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:30,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:30,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:30,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:30,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:30,848 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:31,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:31,406 INFO L93 Difference]: Finished difference Result 18341 states and 52123 transitions. [2022-02-09 00:28:31,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:31,407 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:31,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:31,442 INFO L225 Difference]: With dead ends: 18341 [2022-02-09 00:28:31,442 INFO L226 Difference]: Without dead ends: 18341 [2022-02-09 00:28:31,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:31,443 INFO L933 BasicCegarLoop]: 343 mSDtfsCounter, 1131 mSDsluCounter, 2907 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:31,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 3196 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:31,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18341 states. [2022-02-09 00:28:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18341 to 7516. [2022-02-09 00:28:31,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:31,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-02-09 00:28:31,637 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-02-09 00:28:31,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:31,638 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-02-09 00:28:31,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:31,638 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-02-09 00:28:31,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:31,650 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:31,650 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:31,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-09 00:28:31,650 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:31,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:31,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1361254138, now seen corresponding path program 28 times [2022-02-09 00:28:31,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:31,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371027594] [2022-02-09 00:28:31,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:31,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:31,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:31,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371027594] [2022-02-09 00:28:31,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371027594] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:31,911 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:31,911 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:31,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548422212] [2022-02-09 00:28:31,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:31,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:31,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:31,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:31,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:31,912 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:32,476 INFO L93 Difference]: Finished difference Result 18081 states and 51427 transitions. [2022-02-09 00:28:32,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:32,476 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:32,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:32,510 INFO L225 Difference]: With dead ends: 18081 [2022-02-09 00:28:32,510 INFO L226 Difference]: Without dead ends: 18081 [2022-02-09 00:28:32,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:32,510 INFO L933 BasicCegarLoop]: 338 mSDtfsCounter, 1279 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 872 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:32,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1279 Valid, 3210 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 872 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:32,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18081 states. [2022-02-09 00:28:32,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18081 to 7508. [2022-02-09 00:28:32,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7508 states, 7507 states have (on average 2.808711868922339) internal successors, (21085), 7507 states have internal predecessors, (21085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:32,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 21085 transitions. [2022-02-09 00:28:32,690 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 21085 transitions. Word has length 223 [2022-02-09 00:28:32,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:32,690 INFO L470 AbstractCegarLoop]: Abstraction has 7508 states and 21085 transitions. [2022-02-09 00:28:32,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:32,690 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 21085 transitions. [2022-02-09 00:28:32,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:32,702 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:32,702 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:32,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-09 00:28:32,702 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:32,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:32,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1439493058, now seen corresponding path program 29 times [2022-02-09 00:28:32,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:32,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619956453] [2022-02-09 00:28:32,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:32,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:32,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:32,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619956453] [2022-02-09 00:28:32,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619956453] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:32,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:32,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:32,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90156317] [2022-02-09 00:28:32,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:32,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:32,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:32,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:32,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:32,940 INFO L87 Difference]: Start difference. First operand 7508 states and 21085 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:33,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:33,482 INFO L93 Difference]: Finished difference Result 18749 states and 53401 transitions. [2022-02-09 00:28:33,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:33,482 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:33,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:33,517 INFO L225 Difference]: With dead ends: 18749 [2022-02-09 00:28:33,517 INFO L226 Difference]: Without dead ends: 18749 [2022-02-09 00:28:33,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:33,518 INFO L933 BasicCegarLoop]: 348 mSDtfsCounter, 933 mSDsluCounter, 3009 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:33,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 3298 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:33,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18749 states. [2022-02-09 00:28:33,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18749 to 7516. [2022-02-09 00:28:33,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 7515 states have (on average 2.8102461743180305) internal successors, (21119), 7515 states have internal predecessors, (21119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:33,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 21119 transitions. [2022-02-09 00:28:33,716 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 21119 transitions. Word has length 223 [2022-02-09 00:28:33,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:33,717 INFO L470 AbstractCegarLoop]: Abstraction has 7516 states and 21119 transitions. [2022-02-09 00:28:33,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:33,717 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 21119 transitions. [2022-02-09 00:28:33,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:33,728 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:33,728 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:33,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-09 00:28:33,728 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:33,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:33,728 INFO L85 PathProgramCache]: Analyzing trace with hash -479991370, now seen corresponding path program 30 times [2022-02-09 00:28:33,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:33,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752714324] [2022-02-09 00:28:33,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:33,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:33,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:33,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752714324] [2022-02-09 00:28:33,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752714324] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:33,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:33,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:33,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82337036] [2022-02-09 00:28:33,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:33,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:33,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:33,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:33,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:33,967 INFO L87 Difference]: Start difference. First operand 7516 states and 21119 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:34,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:34,515 INFO L93 Difference]: Finished difference Result 18573 states and 52948 transitions. [2022-02-09 00:28:34,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:34,515 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:34,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:34,549 INFO L225 Difference]: With dead ends: 18573 [2022-02-09 00:28:34,550 INFO L226 Difference]: Without dead ends: 18573 [2022-02-09 00:28:34,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:34,550 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 1249 mSDsluCounter, 2898 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:34,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 3193 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:34,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18573 states. [2022-02-09 00:28:34,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18573 to 7512. [2022-02-09 00:28:34,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7512 states, 7511 states have (on average 2.8092131540407403) internal successors, (21100), 7511 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:34,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7512 states to 7512 states and 21100 transitions. [2022-02-09 00:28:34,756 INFO L78 Accepts]: Start accepts. Automaton has 7512 states and 21100 transitions. Word has length 223 [2022-02-09 00:28:34,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:34,756 INFO L470 AbstractCegarLoop]: Abstraction has 7512 states and 21100 transitions. [2022-02-09 00:28:34,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:34,756 INFO L276 IsEmpty]: Start isEmpty. Operand 7512 states and 21100 transitions. [2022-02-09 00:28:34,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:34,767 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:34,768 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:34,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-09 00:28:34,768 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:34,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:34,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2119200168, now seen corresponding path program 31 times [2022-02-09 00:28:34,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:34,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727577862] [2022-02-09 00:28:34,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:34,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:35,000 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:35,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:35,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727577862] [2022-02-09 00:28:35,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727577862] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:35,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:35,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:35,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023145555] [2022-02-09 00:28:35,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:35,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:35,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:35,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:35,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:35,002 INFO L87 Difference]: Start difference. First operand 7512 states and 21100 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:35,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:35,562 INFO L93 Difference]: Finished difference Result 19757 states and 56328 transitions. [2022-02-09 00:28:35,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:28:35,563 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:35,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:35,605 INFO L225 Difference]: With dead ends: 19757 [2022-02-09 00:28:35,605 INFO L226 Difference]: Without dead ends: 19757 [2022-02-09 00:28:35,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:28:35,605 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1195 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:35,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 2993 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:35,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19757 states. [2022-02-09 00:28:35,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19757 to 7504. [2022-02-09 00:28:35,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7504 states, 7503 states have (on average 2.808743169398907) internal successors, (21074), 7503 states have internal predecessors, (21074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:35,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7504 states to 7504 states and 21074 transitions. [2022-02-09 00:28:35,813 INFO L78 Accepts]: Start accepts. Automaton has 7504 states and 21074 transitions. Word has length 223 [2022-02-09 00:28:35,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:35,813 INFO L470 AbstractCegarLoop]: Abstraction has 7504 states and 21074 transitions. [2022-02-09 00:28:35,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:35,813 INFO L276 IsEmpty]: Start isEmpty. Operand 7504 states and 21074 transitions. [2022-02-09 00:28:35,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:35,825 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:35,825 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:35,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-09 00:28:35,825 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:35,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:35,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1905302994, now seen corresponding path program 32 times [2022-02-09 00:28:35,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:35,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157845700] [2022-02-09 00:28:35,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:35,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:36,042 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:36,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:36,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157845700] [2022-02-09 00:28:36,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157845700] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:36,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:36,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:36,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634086782] [2022-02-09 00:28:36,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:36,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:36,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:36,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:36,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:36,043 INFO L87 Difference]: Start difference. First operand 7504 states and 21074 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:36,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:36,635 INFO L93 Difference]: Finished difference Result 17845 states and 50587 transitions. [2022-02-09 00:28:36,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:36,636 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:36,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:36,670 INFO L225 Difference]: With dead ends: 17845 [2022-02-09 00:28:36,670 INFO L226 Difference]: Without dead ends: 17845 [2022-02-09 00:28:36,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:36,671 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 1428 mSDsluCounter, 3465 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:36,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1428 Valid, 3756 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:36,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17845 states. [2022-02-09 00:28:36,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17845 to 7548. [2022-02-09 00:28:36,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7548 states, 7547 states have (on average 2.8147608321187225) internal successors, (21243), 7547 states have internal predecessors, (21243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7548 states to 7548 states and 21243 transitions. [2022-02-09 00:28:36,895 INFO L78 Accepts]: Start accepts. Automaton has 7548 states and 21243 transitions. Word has length 223 [2022-02-09 00:28:36,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:36,895 INFO L470 AbstractCegarLoop]: Abstraction has 7548 states and 21243 transitions. [2022-02-09 00:28:36,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:36,895 INFO L276 IsEmpty]: Start isEmpty. Operand 7548 states and 21243 transitions. [2022-02-09 00:28:36,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:36,907 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:36,907 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:36,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-09 00:28:36,907 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:36,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:36,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1430162614, now seen corresponding path program 33 times [2022-02-09 00:28:36,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:36,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502450110] [2022-02-09 00:28:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:36,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:37,137 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:37,137 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502450110] [2022-02-09 00:28:37,137 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502450110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:37,137 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:37,137 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:37,137 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575931866] [2022-02-09 00:28:37,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:37,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:37,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:37,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:37,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:37,138 INFO L87 Difference]: Start difference. First operand 7548 states and 21243 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:37,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:37,663 INFO L93 Difference]: Finished difference Result 17669 states and 50134 transitions. [2022-02-09 00:28:37,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:37,664 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:37,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:37,696 INFO L225 Difference]: With dead ends: 17669 [2022-02-09 00:28:37,696 INFO L226 Difference]: Without dead ends: 17669 [2022-02-09 00:28:37,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:37,696 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 1333 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:37,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1333 Valid, 3127 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:37,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17669 states. [2022-02-09 00:28:37,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17669 to 7544. [2022-02-09 00:28:37,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7544 states, 7543 states have (on average 2.813734588360069) internal successors, (21224), 7543 states have internal predecessors, (21224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:37,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7544 states to 7544 states and 21224 transitions. [2022-02-09 00:28:37,894 INFO L78 Accepts]: Start accepts. Automaton has 7544 states and 21224 transitions. Word has length 223 [2022-02-09 00:28:37,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:37,894 INFO L470 AbstractCegarLoop]: Abstraction has 7544 states and 21224 transitions. [2022-02-09 00:28:37,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:37,895 INFO L276 IsEmpty]: Start isEmpty. Operand 7544 states and 21224 transitions. [2022-02-09 00:28:37,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:37,906 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:37,906 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:37,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-09 00:28:37,906 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:37,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:37,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1169028924, now seen corresponding path program 34 times [2022-02-09 00:28:37,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:37,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792334610] [2022-02-09 00:28:37,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:37,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:38,135 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:38,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:38,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792334610] [2022-02-09 00:28:38,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792334610] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:38,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:38,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:38,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500578853] [2022-02-09 00:28:38,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:38,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:38,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:38,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:38,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:38,136 INFO L87 Difference]: Start difference. First operand 7544 states and 21224 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:38,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:38,761 INFO L93 Difference]: Finished difference Result 19309 states and 54928 transitions. [2022-02-09 00:28:38,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:28:38,761 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:38,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:38,800 INFO L225 Difference]: With dead ends: 19309 [2022-02-09 00:28:38,800 INFO L226 Difference]: Without dead ends: 19309 [2022-02-09 00:28:38,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:28:38,801 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1217 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:38,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1217 Valid, 3586 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:38,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19309 states. [2022-02-09 00:28:38,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19309 to 7540. [2022-02-09 00:28:38,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7540 states, 7539 states have (on average 2.8132378299509218) internal successors, (21209), 7539 states have internal predecessors, (21209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:38,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 21209 transitions. [2022-02-09 00:28:38,997 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 21209 transitions. Word has length 223 [2022-02-09 00:28:38,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:38,997 INFO L470 AbstractCegarLoop]: Abstraction has 7540 states and 21209 transitions. [2022-02-09 00:28:38,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:38,998 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 21209 transitions. [2022-02-09 00:28:39,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:39,009 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:39,009 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:39,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-09 00:28:39,009 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:39,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:39,009 INFO L85 PathProgramCache]: Analyzing trace with hash 613147846, now seen corresponding path program 35 times [2022-02-09 00:28:39,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:39,010 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054773592] [2022-02-09 00:28:39,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:39,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:39,252 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:39,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:39,252 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054773592] [2022-02-09 00:28:39,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054773592] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:39,253 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:39,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:39,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724735515] [2022-02-09 00:28:39,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:39,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:39,253 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:39,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:39,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:39,254 INFO L87 Difference]: Start difference. First operand 7540 states and 21209 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:39,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:39,931 INFO L93 Difference]: Finished difference Result 22163 states and 62736 transitions. [2022-02-09 00:28:39,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-09 00:28:39,931 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:39,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:39,973 INFO L225 Difference]: With dead ends: 22163 [2022-02-09 00:28:39,974 INFO L226 Difference]: Without dead ends: 22163 [2022-02-09 00:28:39,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2022-02-09 00:28:39,974 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1429 mSDsluCounter, 3558 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 3882 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:39,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1429 Valid, 3882 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:40,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22163 states. [2022-02-09 00:28:40,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22163 to 8476. [2022-02-09 00:28:40,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8476 states, 8475 states have (on average 2.818997050147493) internal successors, (23891), 8475 states have internal predecessors, (23891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:40,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8476 states to 8476 states and 23891 transitions. [2022-02-09 00:28:40,205 INFO L78 Accepts]: Start accepts. Automaton has 8476 states and 23891 transitions. Word has length 223 [2022-02-09 00:28:40,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:40,206 INFO L470 AbstractCegarLoop]: Abstraction has 8476 states and 23891 transitions. [2022-02-09 00:28:40,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:40,206 INFO L276 IsEmpty]: Start isEmpty. Operand 8476 states and 23891 transitions. [2022-02-09 00:28:40,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:40,217 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:40,218 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:40,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-09 00:28:40,218 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:40,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:40,218 INFO L85 PathProgramCache]: Analyzing trace with hash -638066722, now seen corresponding path program 36 times [2022-02-09 00:28:40,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:40,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922335075] [2022-02-09 00:28:40,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:40,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:40,460 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:40,460 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:40,460 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922335075] [2022-02-09 00:28:40,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922335075] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:40,460 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:40,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:40,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990671875] [2022-02-09 00:28:40,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:40,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:40,461 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:40,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:40,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:40,461 INFO L87 Difference]: Start difference. First operand 8476 states and 23891 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:41,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:41,185 INFO L93 Difference]: Finished difference Result 23424 states and 66686 transitions. [2022-02-09 00:28:41,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-09 00:28:41,186 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:41,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:41,230 INFO L225 Difference]: With dead ends: 23424 [2022-02-09 00:28:41,230 INFO L226 Difference]: Without dead ends: 23424 [2022-02-09 00:28:41,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=345, Invalid=1061, Unknown=0, NotChecked=0, Total=1406 [2022-02-09 00:28:41,231 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1527 mSDsluCounter, 3635 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 3987 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:41,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1527 Valid, 3987 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:41,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23424 states. [2022-02-09 00:28:41,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23424 to 8620. [2022-02-09 00:28:41,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8620 states, 8619 states have (on average 2.8220211161387634) internal successors, (24323), 8619 states have internal predecessors, (24323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 24323 transitions. [2022-02-09 00:28:41,460 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 24323 transitions. Word has length 223 [2022-02-09 00:28:41,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:41,460 INFO L470 AbstractCegarLoop]: Abstraction has 8620 states and 24323 transitions. [2022-02-09 00:28:41,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 24323 transitions. [2022-02-09 00:28:41,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:41,499 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:41,499 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:41,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-09 00:28:41,499 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:41,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:41,500 INFO L85 PathProgramCache]: Analyzing trace with hash 114748502, now seen corresponding path program 37 times [2022-02-09 00:28:41,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:41,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484969454] [2022-02-09 00:28:41,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:41,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:41,719 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:41,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:41,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484969454] [2022-02-09 00:28:41,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484969454] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:41,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:41,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:41,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217491089] [2022-02-09 00:28:41,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:41,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:41,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:41,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:41,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:41,720 INFO L87 Difference]: Start difference. First operand 8620 states and 24323 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:42,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:42,404 INFO L93 Difference]: Finished difference Result 20879 states and 59701 transitions. [2022-02-09 00:28:42,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:28:42,404 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:42,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:42,445 INFO L225 Difference]: With dead ends: 20879 [2022-02-09 00:28:42,445 INFO L226 Difference]: Without dead ends: 20879 [2022-02-09 00:28:42,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:28:42,446 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1018 mSDsluCounter, 3865 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 4194 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:42,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1018 Valid, 4194 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:28:42,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20879 states. [2022-02-09 00:28:42,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20879 to 8624. [2022-02-09 00:28:42,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8624 states, 8623 states have (on average 2.8224515829757624) internal successors, (24338), 8623 states have internal predecessors, (24338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:42,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8624 states to 8624 states and 24338 transitions. [2022-02-09 00:28:42,665 INFO L78 Accepts]: Start accepts. Automaton has 8624 states and 24338 transitions. Word has length 223 [2022-02-09 00:28:42,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:42,666 INFO L470 AbstractCegarLoop]: Abstraction has 8624 states and 24338 transitions. [2022-02-09 00:28:42,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 8624 states and 24338 transitions. [2022-02-09 00:28:42,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:42,678 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:42,678 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:42,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-09 00:28:42,678 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:42,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:42,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1852273058, now seen corresponding path program 38 times [2022-02-09 00:28:42,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:42,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810863409] [2022-02-09 00:28:42,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:42,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:42,900 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:42,900 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:42,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810863409] [2022-02-09 00:28:42,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810863409] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:42,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:42,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:42,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748836002] [2022-02-09 00:28:42,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:42,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:42,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:42,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:42,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:42,901 INFO L87 Difference]: Start difference. First operand 8624 states and 24338 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:43,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:43,452 INFO L93 Difference]: Finished difference Result 19179 states and 54611 transitions. [2022-02-09 00:28:43,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:43,452 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:43,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:43,490 INFO L225 Difference]: With dead ends: 19179 [2022-02-09 00:28:43,490 INFO L226 Difference]: Without dead ends: 19179 [2022-02-09 00:28:43,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:43,491 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 950 mSDsluCounter, 3263 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 3587 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:43,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [950 Valid, 3587 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:43,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19179 states. [2022-02-09 00:28:43,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19179 to 8628. [2022-02-09 00:28:43,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8628 states, 8627 states have (on average 2.823345311232178) internal successors, (24357), 8627 states have internal predecessors, (24357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 24357 transitions. [2022-02-09 00:28:43,722 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 24357 transitions. Word has length 223 [2022-02-09 00:28:43,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:43,722 INFO L470 AbstractCegarLoop]: Abstraction has 8628 states and 24357 transitions. [2022-02-09 00:28:43,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:43,722 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 24357 transitions. [2022-02-09 00:28:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:43,734 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:43,734 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:43,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-09 00:28:43,735 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:43,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:43,735 INFO L85 PathProgramCache]: Analyzing trace with hash -892771370, now seen corresponding path program 39 times [2022-02-09 00:28:43,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:43,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036106992] [2022-02-09 00:28:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:43,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:43,974 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:43,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:43,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036106992] [2022-02-09 00:28:43,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036106992] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:43,975 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:43,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:43,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639396447] [2022-02-09 00:28:43,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:43,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:43,975 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:43,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:43,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:43,976 INFO L87 Difference]: Start difference. First operand 8628 states and 24357 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:44,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:44,535 INFO L93 Difference]: Finished difference Result 18919 states and 53915 transitions. [2022-02-09 00:28:44,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:44,535 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:44,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:44,570 INFO L225 Difference]: With dead ends: 18919 [2022-02-09 00:28:44,570 INFO L226 Difference]: Without dead ends: 18919 [2022-02-09 00:28:44,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:44,571 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 1247 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:44,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1247 Valid, 3845 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:44,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18919 states. [2022-02-09 00:28:44,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18919 to 8584. [2022-02-09 00:28:44,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 8583 states have (on average 2.8181288593731795) internal successors, (24188), 8583 states have internal predecessors, (24188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:44,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 24188 transitions. [2022-02-09 00:28:44,781 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 24188 transitions. Word has length 223 [2022-02-09 00:28:44,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:44,781 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 24188 transitions. [2022-02-09 00:28:44,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:44,781 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 24188 transitions. [2022-02-09 00:28:44,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:44,793 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:44,793 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:44,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-09 00:28:44,794 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:44,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:44,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1691161464, now seen corresponding path program 40 times [2022-02-09 00:28:44,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:44,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164541390] [2022-02-09 00:28:44,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:44,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:45,023 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:45,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:45,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164541390] [2022-02-09 00:28:45,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164541390] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:45,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:45,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:45,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661283425] [2022-02-09 00:28:45,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:45,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:45,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:45,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:45,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:45,025 INFO L87 Difference]: Start difference. First operand 8584 states and 24188 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:45,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:45,654 INFO L93 Difference]: Finished difference Result 21375 states and 61229 transitions. [2022-02-09 00:28:45,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:28:45,654 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:45,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:45,695 INFO L225 Difference]: With dead ends: 21375 [2022-02-09 00:28:45,695 INFO L226 Difference]: Without dead ends: 21375 [2022-02-09 00:28:45,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=960, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:28:45,695 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1334 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 3338 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:45,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1334 Valid, 3338 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:45,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21375 states. [2022-02-09 00:28:45,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21375 to 8592. [2022-02-09 00:28:45,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:45,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-02-09 00:28:45,924 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-02-09 00:28:45,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:45,924 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-02-09 00:28:45,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:45,925 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-02-09 00:28:45,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:45,936 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:45,937 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:45,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-09 00:28:45,937 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:45,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:45,937 INFO L85 PathProgramCache]: Analyzing trace with hash 636784272, now seen corresponding path program 41 times [2022-02-09 00:28:45,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:45,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388882835] [2022-02-09 00:28:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:45,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:46,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:46,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388882835] [2022-02-09 00:28:46,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388882835] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:46,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:46,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:46,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449936173] [2022-02-09 00:28:46,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:46,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:46,222 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:46,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:46,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:46,222 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:46,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:46,788 INFO L93 Difference]: Finished difference Result 20131 states and 57557 transitions. [2022-02-09 00:28:46,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:46,789 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:46,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:46,829 INFO L225 Difference]: With dead ends: 20131 [2022-02-09 00:28:46,829 INFO L226 Difference]: Without dead ends: 20131 [2022-02-09 00:28:46,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:46,830 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 931 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 3137 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:46,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 3137 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:46,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20131 states. [2022-02-09 00:28:47,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20131 to 8596. [2022-02-09 00:28:47,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:47,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-02-09 00:28:47,052 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-02-09 00:28:47,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:47,052 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-02-09 00:28:47,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:47,052 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-02-09 00:28:47,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:47,065 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:47,065 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:47,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-09 00:28:47,065 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:47,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:47,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1596285960, now seen corresponding path program 42 times [2022-02-09 00:28:47,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:47,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997950584] [2022-02-09 00:28:47,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:47,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:47,297 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:47,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:47,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997950584] [2022-02-09 00:28:47,298 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997950584] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:47,298 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:47,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:47,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535886085] [2022-02-09 00:28:47,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:47,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:47,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:47,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:47,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:47,299 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:47,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:47,852 INFO L93 Difference]: Finished difference Result 19871 states and 56861 transitions. [2022-02-09 00:28:47,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:47,853 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:47,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:47,892 INFO L225 Difference]: With dead ends: 19871 [2022-02-09 00:28:47,892 INFO L226 Difference]: Without dead ends: 19871 [2022-02-09 00:28:47,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:47,893 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1395 mSDsluCounter, 2881 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:47,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1395 Valid, 3202 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:47,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19871 states. [2022-02-09 00:28:48,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19871 to 8588. [2022-02-09 00:28:48,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8587 states have (on average 2.818097123558868) internal successors, (24199), 8587 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:48,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 24199 transitions. [2022-02-09 00:28:48,108 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 24199 transitions. Word has length 223 [2022-02-09 00:28:48,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:48,109 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 24199 transitions. [2022-02-09 00:28:48,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:48,109 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 24199 transitions. [2022-02-09 00:28:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:48,121 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:48,122 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:48,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-09 00:28:48,122 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:48,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:48,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1518047040, now seen corresponding path program 43 times [2022-02-09 00:28:48,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:48,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983596712] [2022-02-09 00:28:48,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:48,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:48,360 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:48,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:48,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983596712] [2022-02-09 00:28:48,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983596712] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:48,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:48,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:48,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007990783] [2022-02-09 00:28:48,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:48,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:48,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:48,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:48,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:48,362 INFO L87 Difference]: Start difference. First operand 8588 states and 24199 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:48,934 INFO L93 Difference]: Finished difference Result 19639 states and 56032 transitions. [2022-02-09 00:28:48,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:48,935 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:48,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:48,971 INFO L225 Difference]: With dead ends: 19639 [2022-02-09 00:28:48,971 INFO L226 Difference]: Without dead ends: 19639 [2022-02-09 00:28:48,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:48,972 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 1080 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 3431 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:48,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1080 Valid, 3431 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:48,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19639 states. [2022-02-09 00:28:49,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19639 to 8596. [2022-02-09 00:28:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:49,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-02-09 00:28:49,184 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-02-09 00:28:49,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:49,185 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-02-09 00:28:49,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:49,185 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-02-09 00:28:49,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:49,197 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:49,197 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:49,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-09 00:28:49,198 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:49,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:49,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1817418568, now seen corresponding path program 44 times [2022-02-09 00:28:49,198 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:49,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427274192] [2022-02-09 00:28:49,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:49,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:49,430 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:49,430 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427274192] [2022-02-09 00:28:49,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427274192] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:49,430 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:49,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:49,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077203145] [2022-02-09 00:28:49,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:49,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:49,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:49,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:49,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:49,431 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:49,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:49,977 INFO L93 Difference]: Finished difference Result 19463 states and 55579 transitions. [2022-02-09 00:28:49,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:49,978 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:49,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:50,018 INFO L225 Difference]: With dead ends: 19463 [2022-02-09 00:28:50,018 INFO L226 Difference]: Without dead ends: 19463 [2022-02-09 00:28:50,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=260, Invalid=862, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:50,018 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1389 mSDsluCounter, 3079 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:50,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1389 Valid, 3395 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:50,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19463 states. [2022-02-09 00:28:50,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19463 to 8592. [2022-02-09 00:28:50,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:50,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-02-09 00:28:50,239 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-02-09 00:28:50,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:50,239 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-02-09 00:28:50,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:50,239 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-02-09 00:28:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:50,252 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:50,252 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:50,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-09 00:28:50,252 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:50,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:50,252 INFO L85 PathProgramCache]: Analyzing trace with hash 781772970, now seen corresponding path program 45 times [2022-02-09 00:28:50,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:50,253 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396112321] [2022-02-09 00:28:50,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:50,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:50,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:50,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396112321] [2022-02-09 00:28:50,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396112321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:50,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:50,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:50,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454258256] [2022-02-09 00:28:50,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:50,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:50,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:50,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:50,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:50,480 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:51,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:51,132 INFO L93 Difference]: Finished difference Result 20599 states and 58827 transitions. [2022-02-09 00:28:51,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:28:51,132 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:51,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:51,172 INFO L225 Difference]: With dead ends: 20599 [2022-02-09 00:28:51,172 INFO L226 Difference]: Without dead ends: 20599 [2022-02-09 00:28:51,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:28:51,173 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 1190 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 3569 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:51,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 3569 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:51,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20599 states. [2022-02-09 00:28:51,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20599 to 8548. [2022-02-09 00:28:51,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8548 states, 8547 states have (on average 2.8184158184158186) internal successors, (24089), 8547 states have internal predecessors, (24089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:51,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 24089 transitions. [2022-02-09 00:28:51,384 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 24089 transitions. Word has length 223 [2022-02-09 00:28:51,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:51,384 INFO L470 AbstractCegarLoop]: Abstraction has 8548 states and 24089 transitions. [2022-02-09 00:28:51,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:51,384 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 24089 transitions. [2022-02-09 00:28:51,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:51,396 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:51,396 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:51,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-09 00:28:51,397 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:51,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:51,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1550444754, now seen corresponding path program 46 times [2022-02-09 00:28:51,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:51,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414167392] [2022-02-09 00:28:51,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:51,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:51,628 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:51,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:51,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414167392] [2022-02-09 00:28:51,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414167392] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:51,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:51,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:51,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245317045] [2022-02-09 00:28:51,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:51,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:51,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:51,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:51,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:51,629 INFO L87 Difference]: Start difference. First operand 8548 states and 24089 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:52,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:52,229 INFO L93 Difference]: Finished difference Result 22432 states and 64293 transitions. [2022-02-09 00:28:52,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:28:52,230 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:52,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:52,275 INFO L225 Difference]: With dead ends: 22432 [2022-02-09 00:28:52,275 INFO L226 Difference]: Without dead ends: 22432 [2022-02-09 00:28:52,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=304, Invalid=956, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:28:52,275 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1327 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 3173 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:52,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1327 Valid, 3173 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:52,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22432 states. [2022-02-09 00:28:52,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22432 to 8592. [2022-02-09 00:28:52,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:52,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-02-09 00:28:52,506 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-02-09 00:28:52,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:52,507 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-02-09 00:28:52,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:52,507 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-02-09 00:28:52,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:52,519 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:52,519 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:52,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-09 00:28:52,519 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:52,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:52,519 INFO L85 PathProgramCache]: Analyzing trace with hash -416576806, now seen corresponding path program 47 times [2022-02-09 00:28:52,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:52,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392090087] [2022-02-09 00:28:52,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:52,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:52,755 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:52,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:52,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392090087] [2022-02-09 00:28:52,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392090087] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:52,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:52,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:52,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401773814] [2022-02-09 00:28:52,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:52,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:52,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:52,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:52,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:52,756 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:53,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:53,335 INFO L93 Difference]: Finished difference Result 21188 states and 60621 transitions. [2022-02-09 00:28:53,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:53,336 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:53,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:53,372 INFO L225 Difference]: With dead ends: 21188 [2022-02-09 00:28:53,373 INFO L226 Difference]: Without dead ends: 21188 [2022-02-09 00:28:53,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:53,373 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1304 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:53,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1304 Valid, 3111 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:53,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21188 states. [2022-02-09 00:28:53,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21188 to 8596. [2022-02-09 00:28:53,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:53,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-02-09 00:28:53,582 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-02-09 00:28:53,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:53,582 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-02-09 00:28:53,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:53,583 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-02-09 00:28:53,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:53,594 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:53,594 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:53,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-09 00:28:53,594 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:53,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:53,595 INFO L85 PathProgramCache]: Analyzing trace with hash 542924882, now seen corresponding path program 48 times [2022-02-09 00:28:53,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:53,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639796719] [2022-02-09 00:28:53,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:53,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:53,819 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:53,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:53,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639796719] [2022-02-09 00:28:53,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639796719] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:53,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:53,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:53,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201216091] [2022-02-09 00:28:53,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:53,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:53,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:53,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:53,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:53,821 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:54,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:54,375 INFO L93 Difference]: Finished difference Result 20928 states and 59925 transitions. [2022-02-09 00:28:54,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:54,376 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:54,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:54,415 INFO L225 Difference]: With dead ends: 20928 [2022-02-09 00:28:54,415 INFO L226 Difference]: Without dead ends: 20928 [2022-02-09 00:28:54,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:54,416 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 1249 mSDsluCounter, 2910 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:54,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 3225 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:54,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20928 states. [2022-02-09 00:28:54,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20928 to 8588. [2022-02-09 00:28:54,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8587 states have (on average 2.818097123558868) internal successors, (24199), 8587 states have internal predecessors, (24199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:54,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 24199 transitions. [2022-02-09 00:28:54,638 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 24199 transitions. Word has length 223 [2022-02-09 00:28:54,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:54,638 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 24199 transitions. [2022-02-09 00:28:54,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:54,638 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 24199 transitions. [2022-02-09 00:28:54,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:54,650 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:54,650 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:54,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-09 00:28:54,650 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:54,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:54,650 INFO L85 PathProgramCache]: Analyzing trace with hash 464685962, now seen corresponding path program 49 times [2022-02-09 00:28:54,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:54,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783069480] [2022-02-09 00:28:54,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:54,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:54,866 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:54,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:54,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783069480] [2022-02-09 00:28:54,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783069480] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:54,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:54,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:54,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355818627] [2022-02-09 00:28:54,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:54,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:54,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:54,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:54,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:54,868 INFO L87 Difference]: Start difference. First operand 8588 states and 24199 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:55,458 INFO L93 Difference]: Finished difference Result 21596 states and 61899 transitions. [2022-02-09 00:28:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:55,458 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:55,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:55,549 INFO L225 Difference]: With dead ends: 21596 [2022-02-09 00:28:55,549 INFO L226 Difference]: Without dead ends: 21596 [2022-02-09 00:28:55,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:55,550 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 922 mSDsluCounter, 3451 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 3762 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:55,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [922 Valid, 3762 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:55,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21596 states. [2022-02-09 00:28:55,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21596 to 8596. [2022-02-09 00:28:55,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8595 states have (on average 2.819429901105294) internal successors, (24233), 8595 states have internal predecessors, (24233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:55,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 24233 transitions. [2022-02-09 00:28:55,754 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 24233 transitions. Word has length 223 [2022-02-09 00:28:55,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:55,754 INFO L470 AbstractCegarLoop]: Abstraction has 8596 states and 24233 transitions. [2022-02-09 00:28:55,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 24233 transitions. [2022-02-09 00:28:55,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:55,766 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:55,766 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:55,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-09 00:28:55,766 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:55,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:55,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1424187650, now seen corresponding path program 50 times [2022-02-09 00:28:55,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:55,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572723238] [2022-02-09 00:28:55,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:55,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:55,981 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:55,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:55,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572723238] [2022-02-09 00:28:55,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572723238] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:55,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:55,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:55,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518045871] [2022-02-09 00:28:55,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:55,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:55,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:55,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:55,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:55,982 INFO L87 Difference]: Start difference. First operand 8596 states and 24233 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:56,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:56,549 INFO L93 Difference]: Finished difference Result 21420 states and 61446 transitions. [2022-02-09 00:28:56,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:56,549 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:56,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:56,589 INFO L225 Difference]: With dead ends: 21420 [2022-02-09 00:28:56,590 INFO L226 Difference]: Without dead ends: 21420 [2022-02-09 00:28:56,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:56,590 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 878 mSDsluCounter, 3160 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 3480 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:56,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [878 Valid, 3480 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:56,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21420 states. [2022-02-09 00:28:56,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21420 to 8592. [2022-02-09 00:28:56,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8592 states, 8591 states have (on average 2.8185310208357586) internal successors, (24214), 8591 states have internal predecessors, (24214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:56,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8592 states to 8592 states and 24214 transitions. [2022-02-09 00:28:56,811 INFO L78 Accepts]: Start accepts. Automaton has 8592 states and 24214 transitions. Word has length 223 [2022-02-09 00:28:56,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:56,811 INFO L470 AbstractCegarLoop]: Abstraction has 8592 states and 24214 transitions. [2022-02-09 00:28:56,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:56,812 INFO L276 IsEmpty]: Start isEmpty. Operand 8592 states and 24214 transitions. [2022-02-09 00:28:56,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:56,823 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:56,824 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:56,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-09 00:28:56,824 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:56,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:56,824 INFO L85 PathProgramCache]: Analyzing trace with hash -271588108, now seen corresponding path program 51 times [2022-02-09 00:28:56,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:56,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796632606] [2022-02-09 00:28:56,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:56,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:57,045 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:57,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:57,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796632606] [2022-02-09 00:28:57,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796632606] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:57,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:57,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:57,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983348738] [2022-02-09 00:28:57,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:57,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:57,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:57,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:57,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:57,047 INFO L87 Difference]: Start difference. First operand 8592 states and 24214 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:57,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:57,741 INFO L93 Difference]: Finished difference Result 22604 states and 64826 transitions. [2022-02-09 00:28:57,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:28:57,742 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:57,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:57,785 INFO L225 Difference]: With dead ends: 22604 [2022-02-09 00:28:57,785 INFO L226 Difference]: Without dead ends: 22604 [2022-02-09 00:28:57,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:28:57,787 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1140 mSDsluCounter, 3114 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:57,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 3453 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:57,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22604 states. [2022-02-09 00:28:57,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22604 to 8584. [2022-02-09 00:28:57,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 8583 states have (on average 2.8181288593731795) internal successors, (24188), 8583 states have internal predecessors, (24188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:57,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 24188 transitions. [2022-02-09 00:28:57,991 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 24188 transitions. Word has length 223 [2022-02-09 00:28:57,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:57,991 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 24188 transitions. [2022-02-09 00:28:57,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:57,992 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 24188 transitions. [2022-02-09 00:28:58,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:58,005 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:58,005 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:58,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-09 00:28:58,005 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:58,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:58,005 INFO L85 PathProgramCache]: Analyzing trace with hash -485485282, now seen corresponding path program 52 times [2022-02-09 00:28:58,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:58,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782839743] [2022-02-09 00:28:58,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:58,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:58,210 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:58,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:58,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782839743] [2022-02-09 00:28:58,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782839743] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:58,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:58,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:58,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237110029] [2022-02-09 00:28:58,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:58,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:58,211 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:58,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:58,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:58,212 INFO L87 Difference]: Start difference. First operand 8584 states and 24188 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:58,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:58,807 INFO L93 Difference]: Finished difference Result 20692 states and 59085 transitions. [2022-02-09 00:28:58,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:58,808 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:58,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:58,848 INFO L225 Difference]: With dead ends: 20692 [2022-02-09 00:28:58,849 INFO L226 Difference]: Without dead ends: 20692 [2022-02-09 00:28:58,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:58,849 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 991 mSDsluCounter, 3570 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 3886 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:58,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 3886 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:28:58,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20692 states. [2022-02-09 00:28:59,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20692 to 8628. [2022-02-09 00:28:59,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8628 states, 8627 states have (on average 2.823345311232178) internal successors, (24357), 8627 states have internal predecessors, (24357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:59,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8628 states to 8628 states and 24357 transitions. [2022-02-09 00:28:59,080 INFO L78 Accepts]: Start accepts. Automaton has 8628 states and 24357 transitions. Word has length 223 [2022-02-09 00:28:59,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:28:59,080 INFO L470 AbstractCegarLoop]: Abstraction has 8628 states and 24357 transitions. [2022-02-09 00:28:59,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:59,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8628 states and 24357 transitions. [2022-02-09 00:28:59,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:28:59,093 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:28:59,093 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:28:59,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-09 00:28:59,093 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:28:59,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:28:59,093 INFO L85 PathProgramCache]: Analyzing trace with hash 474016406, now seen corresponding path program 53 times [2022-02-09 00:28:59,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:28:59,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076394835] [2022-02-09 00:28:59,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:28:59,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:28:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:28:59,322 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:28:59,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:28:59,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076394835] [2022-02-09 00:28:59,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076394835] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:28:59,322 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:28:59,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:28:59,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797219365] [2022-02-09 00:28:59,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:28:59,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:28:59,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:28:59,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:28:59,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:28:59,323 INFO L87 Difference]: Start difference. First operand 8628 states and 24357 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:28:59,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:28:59,907 INFO L93 Difference]: Finished difference Result 20516 states and 58632 transitions. [2022-02-09 00:28:59,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:28:59,907 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:28:59,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:28:59,997 INFO L225 Difference]: With dead ends: 20516 [2022-02-09 00:28:59,997 INFO L226 Difference]: Without dead ends: 20516 [2022-02-09 00:28:59,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=867, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:28:59,998 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1086 mSDsluCounter, 3350 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 3678 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:28:59,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 3678 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:00,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20516 states. [2022-02-09 00:29:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20516 to 8624. [2022-02-09 00:29:00,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8624 states, 8623 states have (on average 2.8224515829757624) internal successors, (24338), 8623 states have internal predecessors, (24338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:00,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8624 states to 8624 states and 24338 transitions. [2022-02-09 00:29:00,180 INFO L78 Accepts]: Start accepts. Automaton has 8624 states and 24338 transitions. Word has length 223 [2022-02-09 00:29:00,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:00,180 INFO L470 AbstractCegarLoop]: Abstraction has 8624 states and 24338 transitions. [2022-02-09 00:29:00,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:00,180 INFO L276 IsEmpty]: Start isEmpty. Operand 8624 states and 24338 transitions. [2022-02-09 00:29:00,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:00,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:00,192 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:00,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-09 00:29:00,193 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:00,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:00,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1221759352, now seen corresponding path program 54 times [2022-02-09 00:29:00,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:00,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109741303] [2022-02-09 00:29:00,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:00,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:00,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:00,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109741303] [2022-02-09 00:29:00,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109741303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:00,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:00,406 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:00,406 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608804051] [2022-02-09 00:29:00,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:00,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:00,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:00,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:00,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:00,407 INFO L87 Difference]: Start difference. First operand 8624 states and 24338 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:01,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:01,081 INFO L93 Difference]: Finished difference Result 22156 states and 63426 transitions. [2022-02-09 00:29:01,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:29:01,081 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:01,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:01,122 INFO L225 Difference]: With dead ends: 22156 [2022-02-09 00:29:01,122 INFO L226 Difference]: Without dead ends: 22156 [2022-02-09 00:29:01,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=291, Invalid=969, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:29:01,127 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1112 mSDsluCounter, 3774 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 4118 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:01,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 4118 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:29:01,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22156 states. [2022-02-09 00:29:01,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22156 to 8620. [2022-02-09 00:29:01,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8620 states, 8619 states have (on average 2.8220211161387634) internal successors, (24323), 8619 states have internal predecessors, (24323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:01,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8620 states to 8620 states and 24323 transitions. [2022-02-09 00:29:01,355 INFO L78 Accepts]: Start accepts. Automaton has 8620 states and 24323 transitions. Word has length 223 [2022-02-09 00:29:01,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:01,355 INFO L470 AbstractCegarLoop]: Abstraction has 8620 states and 24323 transitions. [2022-02-09 00:29:01,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:01,355 INFO L276 IsEmpty]: Start isEmpty. Operand 8620 states and 24323 transitions. [2022-02-09 00:29:01,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:01,367 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:01,368 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:01,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-09 00:29:01,368 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:01,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:01,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1777640430, now seen corresponding path program 55 times [2022-02-09 00:29:01,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:01,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902198630] [2022-02-09 00:29:01,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:01,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:01,587 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:01,587 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:01,587 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902198630] [2022-02-09 00:29:01,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902198630] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:01,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:01,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:01,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442524869] [2022-02-09 00:29:01,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:01,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:01,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:01,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:01,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:01,588 INFO L87 Difference]: Start difference. First operand 8620 states and 24323 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:02,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:02,412 INFO L93 Difference]: Finished difference Result 25218 states and 71830 transitions. [2022-02-09 00:29:02,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-09 00:29:02,412 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:02,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:02,466 INFO L225 Difference]: With dead ends: 25218 [2022-02-09 00:29:02,467 INFO L226 Difference]: Without dead ends: 25218 [2022-02-09 00:29:02,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=336, Invalid=1070, Unknown=0, NotChecked=0, Total=1406 [2022-02-09 00:29:02,467 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1517 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 4526 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:02,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 4526 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:29:02,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25218 states. [2022-02-09 00:29:02,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25218 to 8224. [2022-02-09 00:29:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8224 states, 8223 states have (on average 2.821111516478171) internal successors, (23198), 8223 states have internal predecessors, (23198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:02,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8224 states to 8224 states and 23198 transitions. [2022-02-09 00:29:02,716 INFO L78 Accepts]: Start accepts. Automaton has 8224 states and 23198 transitions. Word has length 223 [2022-02-09 00:29:02,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:02,716 INFO L470 AbstractCegarLoop]: Abstraction has 8224 states and 23198 transitions. [2022-02-09 00:29:02,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:02,716 INFO L276 IsEmpty]: Start isEmpty. Operand 8224 states and 23198 transitions. [2022-02-09 00:29:02,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:02,728 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:02,728 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:02,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-02-09 00:29:02,729 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:02,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:02,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1997484100, now seen corresponding path program 56 times [2022-02-09 00:29:02,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:02,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111136526] [2022-02-09 00:29:02,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:02,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:02,966 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:02,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:02,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111136526] [2022-02-09 00:29:02,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111136526] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:02,967 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:02,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:02,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189213364] [2022-02-09 00:29:02,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:02,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:02,967 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:02,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:02,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:02,968 INFO L87 Difference]: Start difference. First operand 8224 states and 23198 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:03,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:03,743 INFO L93 Difference]: Finished difference Result 21842 states and 62640 transitions. [2022-02-09 00:29:03,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-09 00:29:03,743 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:03,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:03,785 INFO L225 Difference]: With dead ends: 21842 [2022-02-09 00:29:03,785 INFO L226 Difference]: Without dead ends: 21842 [2022-02-09 00:29:03,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=1076, Unknown=0, NotChecked=0, Total=1406 [2022-02-09 00:29:03,786 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1326 mSDsluCounter, 4049 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:03,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1326 Valid, 4386 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:29:03,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21842 states. [2022-02-09 00:29:03,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21842 to 8300. [2022-02-09 00:29:03,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8300 states, 8299 states have (on average 2.8247981684540306) internal successors, (23443), 8299 states have internal predecessors, (23443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:04,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8300 states to 8300 states and 23443 transitions. [2022-02-09 00:29:04,009 INFO L78 Accepts]: Start accepts. Automaton has 8300 states and 23443 transitions. Word has length 223 [2022-02-09 00:29:04,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:04,009 INFO L470 AbstractCegarLoop]: Abstraction has 8300 states and 23443 transitions. [2022-02-09 00:29:04,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 8300 states and 23443 transitions. [2022-02-09 00:29:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:04,021 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:04,022 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:04,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-02-09 00:29:04,022 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:04,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:04,022 INFO L85 PathProgramCache]: Analyzing trace with hash 186521022, now seen corresponding path program 57 times [2022-02-09 00:29:04,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:04,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547299663] [2022-02-09 00:29:04,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:04,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:04,234 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:04,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:04,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547299663] [2022-02-09 00:29:04,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547299663] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:04,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:04,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:04,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935448737] [2022-02-09 00:29:04,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:04,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:04,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:04,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:04,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:04,235 INFO L87 Difference]: Start difference. First operand 8300 states and 23443 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:04,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:04,849 INFO L93 Difference]: Finished difference Result 17140 states and 49239 transitions. [2022-02-09 00:29:04,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:04,850 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:04,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:04,885 INFO L225 Difference]: With dead ends: 17140 [2022-02-09 00:29:04,885 INFO L226 Difference]: Without dead ends: 17140 [2022-02-09 00:29:04,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:29:04,887 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 1071 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:04,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1071 Valid, 3579 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:04,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17140 states. [2022-02-09 00:29:05,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17140 to 8308. [2022-02-09 00:29:05,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8308 states, 8307 states have (on average 2.826170699410136) internal successors, (23477), 8307 states have internal predecessors, (23477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:05,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8308 states to 8308 states and 23477 transitions. [2022-02-09 00:29:05,080 INFO L78 Accepts]: Start accepts. Automaton has 8308 states and 23477 transitions. Word has length 223 [2022-02-09 00:29:05,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:05,080 INFO L470 AbstractCegarLoop]: Abstraction has 8308 states and 23477 transitions. [2022-02-09 00:29:05,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:05,080 INFO L276 IsEmpty]: Start isEmpty. Operand 8308 states and 23477 transitions. [2022-02-09 00:29:05,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:05,093 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:05,093 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:05,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-02-09 00:29:05,093 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:05,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:05,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1146022710, now seen corresponding path program 58 times [2022-02-09 00:29:05,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:05,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585687793] [2022-02-09 00:29:05,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:05,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:05,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:05,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585687793] [2022-02-09 00:29:05,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585687793] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:05,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:05,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:05,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594185207] [2022-02-09 00:29:05,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:05,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:05,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:05,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:05,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:05,306 INFO L87 Difference]: Start difference. First operand 8308 states and 23477 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:05,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:05,898 INFO L93 Difference]: Finished difference Result 17015 states and 48924 transitions. [2022-02-09 00:29:05,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:05,899 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:05,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:05,931 INFO L225 Difference]: With dead ends: 17015 [2022-02-09 00:29:05,931 INFO L226 Difference]: Without dead ends: 17015 [2022-02-09 00:29:05,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=869, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:29:05,932 INFO L933 BasicCegarLoop]: 362 mSDtfsCounter, 1203 mSDsluCounter, 3481 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 3776 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:05,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1203 Valid, 3776 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:05,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17015 states. [2022-02-09 00:29:06,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17015 to 8304. [2022-02-09 00:29:06,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8304 states, 8303 states have (on average 2.825243887751415) internal successors, (23458), 8303 states have internal predecessors, (23458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8304 states to 8304 states and 23458 transitions. [2022-02-09 00:29:06,134 INFO L78 Accepts]: Start accepts. Automaton has 8304 states and 23458 transitions. Word has length 223 [2022-02-09 00:29:06,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:06,134 INFO L470 AbstractCegarLoop]: Abstraction has 8304 states and 23458 transitions. [2022-02-09 00:29:06,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:06,134 INFO L276 IsEmpty]: Start isEmpty. Operand 8304 states and 23458 transitions. [2022-02-09 00:29:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:06,147 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:06,147 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:06,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-02-09 00:29:06,147 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:06,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:06,148 INFO L85 PathProgramCache]: Analyzing trace with hash -549753048, now seen corresponding path program 59 times [2022-02-09 00:29:06,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:06,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483237979] [2022-02-09 00:29:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:06,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:06,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:06,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483237979] [2022-02-09 00:29:06,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483237979] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:06,395 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:06,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:06,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314392873] [2022-02-09 00:29:06,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:06,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:06,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:06,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:06,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:06,396 INFO L87 Difference]: Start difference. First operand 8304 states and 23458 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:07,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:07,082 INFO L93 Difference]: Finished difference Result 18643 states and 53681 transitions. [2022-02-09 00:29:07,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:29:07,082 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:07,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:07,169 INFO L225 Difference]: With dead ends: 18643 [2022-02-09 00:29:07,169 INFO L226 Difference]: Without dead ends: 18643 [2022-02-09 00:29:07,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=973, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:29:07,170 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 1061 mSDsluCounter, 3742 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 4059 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:07,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 4059 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1130 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:29:07,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18643 states. [2022-02-09 00:29:07,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18643 to 8264. [2022-02-09 00:29:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8264 states, 8263 states have (on average 2.820767275807818) internal successors, (23308), 8263 states have internal predecessors, (23308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:07,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 23308 transitions. [2022-02-09 00:29:07,341 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 23308 transitions. Word has length 223 [2022-02-09 00:29:07,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:07,342 INFO L470 AbstractCegarLoop]: Abstraction has 8264 states and 23308 transitions. [2022-02-09 00:29:07,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:07,342 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 23308 transitions. [2022-02-09 00:29:07,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:07,354 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:07,354 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:07,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-02-09 00:29:07,355 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:07,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1356097652, now seen corresponding path program 60 times [2022-02-09 00:29:07,355 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:07,355 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564580860] [2022-02-09 00:29:07,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:07,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:07,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:07,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564580860] [2022-02-09 00:29:07,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564580860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:07,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:07,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:07,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762454879] [2022-02-09 00:29:07,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:07,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:07,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:07,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:07,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:07,598 INFO L87 Difference]: Start difference. First operand 8264 states and 23308 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:08,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:08,194 INFO L93 Difference]: Finished difference Result 17336 states and 49761 transitions. [2022-02-09 00:29:08,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:29:08,195 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:08,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:08,228 INFO L225 Difference]: With dead ends: 17336 [2022-02-09 00:29:08,228 INFO L226 Difference]: Without dead ends: 17336 [2022-02-09 00:29:08,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=308, Invalid=952, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:29:08,228 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 1096 mSDsluCounter, 2781 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:08,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 3077 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:08,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17336 states. [2022-02-09 00:29:08,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17336 to 8272. [2022-02-09 00:29:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8271 states have (on average 2.821182444686253) internal successors, (23334), 8271 states have internal predecessors, (23334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:08,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23334 transitions. [2022-02-09 00:29:08,424 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23334 transitions. Word has length 223 [2022-02-09 00:29:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:08,424 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23334 transitions. [2022-02-09 00:29:08,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23334 transitions. [2022-02-09 00:29:08,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:08,436 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:08,436 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:08,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-02-09 00:29:08,436 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:08,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:08,437 INFO L85 PathProgramCache]: Analyzing trace with hash 971848084, now seen corresponding path program 61 times [2022-02-09 00:29:08,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:08,437 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314458008] [2022-02-09 00:29:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:08,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:08,663 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:08,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:08,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314458008] [2022-02-09 00:29:08,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314458008] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:08,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:08,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:08,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518687821] [2022-02-09 00:29:08,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:08,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:08,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:08,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:08,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:08,664 INFO L87 Difference]: Start difference. First operand 8272 states and 23334 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:09,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:09,194 INFO L93 Difference]: Finished difference Result 16036 states and 45923 transitions. [2022-02-09 00:29:09,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:09,195 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:09,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:09,227 INFO L225 Difference]: With dead ends: 16036 [2022-02-09 00:29:09,227 INFO L226 Difference]: Without dead ends: 16036 [2022-02-09 00:29:09,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:29:09,228 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 812 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 2978 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:09,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [812 Valid, 2978 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:09,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16036 states. [2022-02-09 00:29:09,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16036 to 8276. [2022-02-09 00:29:09,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8276 states, 8275 states have (on average 2.822114803625378) internal successors, (23353), 8275 states have internal predecessors, (23353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:09,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23353 transitions. [2022-02-09 00:29:09,440 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23353 transitions. Word has length 223 [2022-02-09 00:29:09,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:09,440 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23353 transitions. [2022-02-09 00:29:09,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:09,440 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23353 transitions. [2022-02-09 00:29:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:09,452 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:09,452 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:09,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-02-09 00:29:09,453 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:09,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:09,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1931349772, now seen corresponding path program 62 times [2022-02-09 00:29:09,453 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:09,453 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059421070] [2022-02-09 00:29:09,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:09,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:09,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:09,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059421070] [2022-02-09 00:29:09,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059421070] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:09,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:09,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:09,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983272048] [2022-02-09 00:29:09,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:09,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:09,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:09,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:09,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:09,683 INFO L87 Difference]: Start difference. First operand 8276 states and 23353 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:10,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:10,210 INFO L93 Difference]: Finished difference Result 15776 states and 45227 transitions. [2022-02-09 00:29:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:10,210 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:10,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:10,239 INFO L225 Difference]: With dead ends: 15776 [2022-02-09 00:29:10,240 INFO L226 Difference]: Without dead ends: 15776 [2022-02-09 00:29:10,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:29:10,240 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 986 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 3340 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:10,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [986 Valid, 3340 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:10,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15776 states. [2022-02-09 00:29:10,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15776 to 8268. [2022-02-09 00:29:10,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8268 states, 8267 states have (on average 2.820733034958268) internal successors, (23319), 8267 states have internal predecessors, (23319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:10,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 23319 transitions. [2022-02-09 00:29:10,427 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 23319 transitions. Word has length 223 [2022-02-09 00:29:10,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:10,427 INFO L470 AbstractCegarLoop]: Abstraction has 8268 states and 23319 transitions. [2022-02-09 00:29:10,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 23319 transitions. [2022-02-09 00:29:10,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:10,439 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:10,440 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:10,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-02-09 00:29:10,440 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:10,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:10,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1853110852, now seen corresponding path program 63 times [2022-02-09 00:29:10,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:10,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462931681] [2022-02-09 00:29:10,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:10,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:10,663 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:10,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:10,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462931681] [2022-02-09 00:29:10,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462931681] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:10,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:10,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:10,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421021758] [2022-02-09 00:29:10,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:10,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:10,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:10,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:10,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:10,664 INFO L87 Difference]: Start difference. First operand 8268 states and 23319 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:11,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:11,248 INFO L93 Difference]: Finished difference Result 16444 states and 47201 transitions. [2022-02-09 00:29:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:11,248 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:11,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:11,281 INFO L225 Difference]: With dead ends: 16444 [2022-02-09 00:29:11,281 INFO L226 Difference]: Without dead ends: 16444 [2022-02-09 00:29:11,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:29:11,282 INFO L933 BasicCegarLoop]: 356 mSDtfsCounter, 1160 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 3551 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:11,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 3551 Invalid, 1038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:11,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16444 states. [2022-02-09 00:29:11,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16444 to 8276. [2022-02-09 00:29:11,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8276 states, 8275 states have (on average 2.822114803625378) internal successors, (23353), 8275 states have internal predecessors, (23353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:11,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23353 transitions. [2022-02-09 00:29:11,552 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23353 transitions. Word has length 223 [2022-02-09 00:29:11,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:11,553 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23353 transitions. [2022-02-09 00:29:11,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:11,553 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23353 transitions. [2022-02-09 00:29:11,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:11,564 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:11,564 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:11,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-02-09 00:29:11,564 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:11,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:11,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1482354756, now seen corresponding path program 64 times [2022-02-09 00:29:11,565 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:11,565 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306865185] [2022-02-09 00:29:11,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:11,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:11,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:11,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306865185] [2022-02-09 00:29:11,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306865185] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:11,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:11,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:11,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037678761] [2022-02-09 00:29:11,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:11,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:11,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:11,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:11,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:11,788 INFO L87 Difference]: Start difference. First operand 8276 states and 23353 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:12,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:12,330 INFO L93 Difference]: Finished difference Result 16268 states and 46748 transitions. [2022-02-09 00:29:12,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:12,330 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:12,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:12,365 INFO L225 Difference]: With dead ends: 16268 [2022-02-09 00:29:12,365 INFO L226 Difference]: Without dead ends: 16268 [2022-02-09 00:29:12,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:29:12,365 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 946 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:12,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 3343 Invalid, 944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:12,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16268 states. [2022-02-09 00:29:12,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16268 to 8272. [2022-02-09 00:29:12,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8271 states have (on average 2.821182444686253) internal successors, (23334), 8271 states have internal predecessors, (23334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:12,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23334 transitions. [2022-02-09 00:29:12,546 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23334 transitions. Word has length 223 [2022-02-09 00:29:12,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:12,546 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23334 transitions. [2022-02-09 00:29:12,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:12,547 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23334 transitions. [2022-02-09 00:29:12,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:12,558 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:12,558 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:12,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-02-09 00:29:12,558 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:12,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:12,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1116836782, now seen corresponding path program 65 times [2022-02-09 00:29:12,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:12,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552187598] [2022-02-09 00:29:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:12,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:12,794 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:12,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:12,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552187598] [2022-02-09 00:29:12,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552187598] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:12,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:12,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:12,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079503254] [2022-02-09 00:29:12,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:12,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:12,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:12,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:12,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:12,796 INFO L87 Difference]: Start difference. First operand 8272 states and 23334 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:13,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:13,398 INFO L93 Difference]: Finished difference Result 17452 states and 50128 transitions. [2022-02-09 00:29:13,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:29:13,399 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:13,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:13,433 INFO L225 Difference]: With dead ends: 17452 [2022-02-09 00:29:13,434 INFO L226 Difference]: Without dead ends: 17452 [2022-02-09 00:29:13,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=970, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:29:13,434 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 1391 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:13,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1391 Valid, 3213 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:13,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17452 states. [2022-02-09 00:29:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17452 to 8228. [2022-02-09 00:29:13,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8228 states, 8227 states have (on average 2.8210769417770756) internal successors, (23209), 8227 states have internal predecessors, (23209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:13,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8228 states to 8228 states and 23209 transitions. [2022-02-09 00:29:13,628 INFO L78 Accepts]: Start accepts. Automaton has 8228 states and 23209 transitions. Word has length 223 [2022-02-09 00:29:13,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:13,629 INFO L470 AbstractCegarLoop]: Abstraction has 8228 states and 23209 transitions. [2022-02-09 00:29:13,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:13,629 INFO L276 IsEmpty]: Start isEmpty. Operand 8228 states and 23209 transitions. [2022-02-09 00:29:13,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:13,640 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:13,640 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:13,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-02-09 00:29:13,641 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:13,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash -70816108, now seen corresponding path program 66 times [2022-02-09 00:29:13,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:13,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821801768] [2022-02-09 00:29:13,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:13,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:13,884 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:13,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:13,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821801768] [2022-02-09 00:29:13,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821801768] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:13,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:13,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:13,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849217271] [2022-02-09 00:29:13,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:13,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:13,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:13,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:13,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:13,885 INFO L87 Difference]: Start difference. First operand 8228 states and 23209 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:14,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:14,612 INFO L93 Difference]: Finished difference Result 20532 states and 58718 transitions. [2022-02-09 00:29:14,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-09 00:29:14,613 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:14,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:14,650 INFO L225 Difference]: With dead ends: 20532 [2022-02-09 00:29:14,650 INFO L226 Difference]: Without dead ends: 20532 [2022-02-09 00:29:14,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=329, Invalid=1077, Unknown=0, NotChecked=0, Total=1406 [2022-02-09 00:29:14,650 INFO L933 BasicCegarLoop]: 421 mSDtfsCounter, 1166 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 3775 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:14,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 3775 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:14,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20532 states. [2022-02-09 00:29:14,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20532 to 8268. [2022-02-09 00:29:14,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8268 states, 8267 states have (on average 2.825571549534293) internal successors, (23359), 8267 states have internal predecessors, (23359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:14,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8268 states to 8268 states and 23359 transitions. [2022-02-09 00:29:14,866 INFO L78 Accepts]: Start accepts. Automaton has 8268 states and 23359 transitions. Word has length 223 [2022-02-09 00:29:14,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:14,866 INFO L470 AbstractCegarLoop]: Abstraction has 8268 states and 23359 transitions. [2022-02-09 00:29:14,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:14,867 INFO L276 IsEmpty]: Start isEmpty. Operand 8268 states and 23359 transitions. [2022-02-09 00:29:14,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:14,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:14,879 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:14,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-02-09 00:29:14,879 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:14,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:14,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2113189014, now seen corresponding path program 67 times [2022-02-09 00:29:14,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:14,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254376633] [2022-02-09 00:29:14,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:14,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:15,071 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:15,071 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254376633] [2022-02-09 00:29:15,072 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254376633] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:15,072 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:15,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:15,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108706336] [2022-02-09 00:29:15,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:15,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:15,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:15,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:15,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:15,073 INFO L87 Difference]: Start difference. First operand 8268 states and 23359 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:15,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:15,674 INFO L93 Difference]: Finished difference Result 15295 states and 43672 transitions. [2022-02-09 00:29:15,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:15,675 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:15,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:15,706 INFO L225 Difference]: With dead ends: 15295 [2022-02-09 00:29:15,706 INFO L226 Difference]: Without dead ends: 15295 [2022-02-09 00:29:15,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:29:15,707 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1330 mSDsluCounter, 3024 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 3315 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:15,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1330 Valid, 3315 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:15,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15295 states. [2022-02-09 00:29:15,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15295 to 8276. [2022-02-09 00:29:15,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8276 states, 8275 states have (on average 2.826948640483384) internal successors, (23393), 8275 states have internal predecessors, (23393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:15,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 23393 transitions. [2022-02-09 00:29:15,893 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 23393 transitions. Word has length 223 [2022-02-09 00:29:15,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:15,893 INFO L470 AbstractCegarLoop]: Abstraction has 8276 states and 23393 transitions. [2022-02-09 00:29:15,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:15,893 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 23393 transitions. [2022-02-09 00:29:15,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:15,906 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:15,906 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:15,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-02-09 00:29:15,906 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:15,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:15,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1222276594, now seen corresponding path program 68 times [2022-02-09 00:29:15,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:15,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569748559] [2022-02-09 00:29:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:15,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:16,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:16,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569748559] [2022-02-09 00:29:16,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569748559] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:16,103 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:16,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:16,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096288306] [2022-02-09 00:29:16,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:16,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:16,103 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:16,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:16,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:16,104 INFO L87 Difference]: Start difference. First operand 8276 states and 23393 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:16,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:16,732 INFO L93 Difference]: Finished difference Result 15170 states and 43357 transitions. [2022-02-09 00:29:16,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:16,733 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:16,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:16,763 INFO L225 Difference]: With dead ends: 15170 [2022-02-09 00:29:16,763 INFO L226 Difference]: Without dead ends: 15170 [2022-02-09 00:29:16,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=252, Invalid=870, Unknown=0, NotChecked=0, Total=1122 [2022-02-09 00:29:16,763 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 1007 mSDsluCounter, 3569 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 3868 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:16,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1007 Valid, 3868 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-09 00:29:16,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15170 states. [2022-02-09 00:29:16,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15170 to 8272. [2022-02-09 00:29:16,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8272 states, 8271 states have (on average 2.8260186192721557) internal successors, (23374), 8271 states have internal predecessors, (23374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:16,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8272 states to 8272 states and 23374 transitions. [2022-02-09 00:29:16,946 INFO L78 Accepts]: Start accepts. Automaton has 8272 states and 23374 transitions. Word has length 223 [2022-02-09 00:29:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:16,946 INFO L470 AbstractCegarLoop]: Abstraction has 8272 states and 23374 transitions. [2022-02-09 00:29:16,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:16,946 INFO L276 IsEmpty]: Start isEmpty. Operand 8272 states and 23374 transitions. [2022-02-09 00:29:16,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:16,958 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:16,958 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:16,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-02-09 00:29:16,958 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:16,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:16,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1376914944, now seen corresponding path program 69 times [2022-02-09 00:29:16,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:16,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985655898] [2022-02-09 00:29:16,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:16,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:17,157 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:17,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:17,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985655898] [2022-02-09 00:29:17,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985655898] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:17,157 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:17,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:17,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938864567] [2022-02-09 00:29:17,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:17,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:17,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:17,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:17,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:17,158 INFO L87 Difference]: Start difference. First operand 8272 states and 23374 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:17,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:17,844 INFO L93 Difference]: Finished difference Result 16810 states and 48151 transitions. [2022-02-09 00:29:17,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:29:17,844 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:17,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:17,877 INFO L225 Difference]: With dead ends: 16810 [2022-02-09 00:29:17,877 INFO L226 Difference]: Without dead ends: 16810 [2022-02-09 00:29:17,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=286, Invalid=974, Unknown=0, NotChecked=0, Total=1260 [2022-02-09 00:29:17,878 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 937 mSDsluCounter, 3669 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 3992 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:17,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [937 Valid, 3992 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:29:17,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16810 states. [2022-02-09 00:29:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16810 to 8232. [2022-02-09 00:29:18,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8232 states, 8231 states have (on average 2.821528368363504) internal successors, (23224), 8231 states have internal predecessors, (23224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:18,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8232 states to 8232 states and 23224 transitions. [2022-02-09 00:29:18,068 INFO L78 Accepts]: Start accepts. Automaton has 8232 states and 23224 transitions. Word has length 223 [2022-02-09 00:29:18,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:18,068 INFO L470 AbstractCegarLoop]: Abstraction has 8232 states and 23224 transitions. [2022-02-09 00:29:18,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:18,069 INFO L276 IsEmpty]: Start isEmpty. Operand 8232 states and 23224 transitions. [2022-02-09 00:29:18,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-02-09 00:29:18,080 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:18,080 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:18,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-02-09 00:29:18,080 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:18,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:18,081 INFO L85 PathProgramCache]: Analyzing trace with hash -556140130, now seen corresponding path program 70 times [2022-02-09 00:29:18,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:18,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366910344] [2022-02-09 00:29:18,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:18,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:18,278 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:18,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:18,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366910344] [2022-02-09 00:29:18,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366910344] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:18,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:18,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-09 00:29:18,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329490592] [2022-02-09 00:29:18,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:18,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-09 00:29:18,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:18,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-09 00:29:18,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:18,279 INFO L87 Difference]: Start difference. First operand 8232 states and 23224 transitions. Second operand has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:19,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:19,160 INFO L93 Difference]: Finished difference Result 21876 states and 62326 transitions. [2022-02-09 00:29:19,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-09 00:29:19,160 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2022-02-09 00:29:19,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:19,201 INFO L225 Difference]: With dead ends: 21876 [2022-02-09 00:29:19,201 INFO L226 Difference]: Without dead ends: 21876 [2022-02-09 00:29:19,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-02-09 00:29:19,202 INFO L933 BasicCegarLoop]: 441 mSDtfsCounter, 1725 mSDsluCounter, 4240 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 4578 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:19,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1725 Valid, 4578 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:29:19,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21876 states. [2022-02-09 00:29:19,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21876 to 8336. [2022-02-09 00:29:19,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8336 states, 8335 states have (on average 2.8220755848830232) internal successors, (23522), 8335 states have internal predecessors, (23522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:19,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8336 states to 8336 states and 23522 transitions. [2022-02-09 00:29:19,421 INFO L78 Accepts]: Start accepts. Automaton has 8336 states and 23522 transitions. Word has length 223 [2022-02-09 00:29:19,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:19,421 INFO L470 AbstractCegarLoop]: Abstraction has 8336 states and 23522 transitions. [2022-02-09 00:29:19,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.789473684210526) internal successors, (167), 19 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:19,421 INFO L276 IsEmpty]: Start isEmpty. Operand 8336 states and 23522 transitions. [2022-02-09 00:29:19,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:19,433 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:19,434 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:19,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-02-09 00:29:19,434 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:19,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:19,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1960384399, now seen corresponding path program 1 times [2022-02-09 00:29:19,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:19,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943720731] [2022-02-09 00:29:19,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:19,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:19,532 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:19,532 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:19,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943720731] [2022-02-09 00:29:19,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943720731] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:19,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:19,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:19,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964276973] [2022-02-09 00:29:19,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:19,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:19,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:19,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:19,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:19,533 INFO L87 Difference]: Start difference. First operand 8336 states and 23522 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:19,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:19,799 INFO L93 Difference]: Finished difference Result 10171 states and 28081 transitions. [2022-02-09 00:29:19,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 00:29:19,799 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:19,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:19,816 INFO L225 Difference]: With dead ends: 10171 [2022-02-09 00:29:19,816 INFO L226 Difference]: Without dead ends: 10024 [2022-02-09 00:29:19,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-02-09 00:29:19,817 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 321 mSDsluCounter, 2076 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:19,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 2342 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:19,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10024 states. [2022-02-09 00:29:19,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10024 to 9870. [2022-02-09 00:29:19,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9870 states, 9869 states have (on average 2.7776877089877394) internal successors, (27413), 9869 states have internal predecessors, (27413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:19,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9870 states to 9870 states and 27413 transitions. [2022-02-09 00:29:19,972 INFO L78 Accepts]: Start accepts. Automaton has 9870 states and 27413 transitions. Word has length 227 [2022-02-09 00:29:19,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:19,972 INFO L470 AbstractCegarLoop]: Abstraction has 9870 states and 27413 transitions. [2022-02-09 00:29:19,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 9870 states and 27413 transitions. [2022-02-09 00:29:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:19,986 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:19,986 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:19,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-02-09 00:29:19,986 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:19,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:19,986 INFO L85 PathProgramCache]: Analyzing trace with hash 871663653, now seen corresponding path program 2 times [2022-02-09 00:29:19,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:19,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132318315] [2022-02-09 00:29:19,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:19,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:20,090 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:20,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:20,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132318315] [2022-02-09 00:29:20,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132318315] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:20,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:20,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:20,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316330453] [2022-02-09 00:29:20,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:20,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:20,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:20,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:20,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:20,091 INFO L87 Difference]: Start difference. First operand 9870 states and 27413 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:20,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:20,404 INFO L93 Difference]: Finished difference Result 10195 states and 28097 transitions. [2022-02-09 00:29:20,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:29:20,405 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:20,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:20,421 INFO L225 Difference]: With dead ends: 10195 [2022-02-09 00:29:20,421 INFO L226 Difference]: Without dead ends: 9768 [2022-02-09 00:29:20,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2022-02-09 00:29:20,422 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 304 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 2946 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:20,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 2946 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:20,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9768 states. [2022-02-09 00:29:20,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9768 to 9614. [2022-02-09 00:29:20,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9614 states, 9613 states have (on average 2.778425049412254) internal successors, (26709), 9613 states have internal predecessors, (26709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:20,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9614 states to 9614 states and 26709 transitions. [2022-02-09 00:29:20,573 INFO L78 Accepts]: Start accepts. Automaton has 9614 states and 26709 transitions. Word has length 227 [2022-02-09 00:29:20,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:20,573 INFO L470 AbstractCegarLoop]: Abstraction has 9614 states and 26709 transitions. [2022-02-09 00:29:20,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:20,574 INFO L276 IsEmpty]: Start isEmpty. Operand 9614 states and 26709 transitions. [2022-02-09 00:29:20,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:20,588 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:20,588 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:20,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-02-09 00:29:20,588 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:20,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:20,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1010368307, now seen corresponding path program 3 times [2022-02-09 00:29:20,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:20,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049848981] [2022-02-09 00:29:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:20,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:20,691 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:20,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:20,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049848981] [2022-02-09 00:29:20,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049848981] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:20,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:20,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:20,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581852119] [2022-02-09 00:29:20,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:20,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:20,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:20,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:20,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:20,692 INFO L87 Difference]: Start difference. First operand 9614 states and 26709 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:20,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:20,984 INFO L93 Difference]: Finished difference Result 9885 states and 27294 transitions. [2022-02-09 00:29:20,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 00:29:20,984 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:20,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:21,001 INFO L225 Difference]: With dead ends: 9885 [2022-02-09 00:29:21,001 INFO L226 Difference]: Without dead ends: 9667 [2022-02-09 00:29:21,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:21,002 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 234 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:21,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2523 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:21,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9667 states. [2022-02-09 00:29:21,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9667 to 9582. [2022-02-09 00:29:21,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9582 states, 9581 states have (on average 2.7785199874752116) internal successors, (26621), 9581 states have internal predecessors, (26621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:21,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 26621 transitions. [2022-02-09 00:29:21,142 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 26621 transitions. Word has length 227 [2022-02-09 00:29:21,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:21,143 INFO L470 AbstractCegarLoop]: Abstraction has 9582 states and 26621 transitions. [2022-02-09 00:29:21,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:21,143 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 26621 transitions. [2022-02-09 00:29:21,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:21,157 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:21,157 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:21,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-02-09 00:29:21,157 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:21,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:21,157 INFO L85 PathProgramCache]: Analyzing trace with hash -366274121, now seen corresponding path program 4 times [2022-02-09 00:29:21,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:21,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485487045] [2022-02-09 00:29:21,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:21,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:21,261 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:21,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:21,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485487045] [2022-02-09 00:29:21,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485487045] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:21,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:21,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:21,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107031153] [2022-02-09 00:29:21,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:21,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:21,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:21,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:21,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:21,263 INFO L87 Difference]: Start difference. First operand 9582 states and 26621 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:21,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:21,508 INFO L93 Difference]: Finished difference Result 9868 states and 27241 transitions. [2022-02-09 00:29:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 00:29:21,508 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:21,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:21,525 INFO L225 Difference]: With dead ends: 9868 [2022-02-09 00:29:21,525 INFO L226 Difference]: Without dead ends: 9635 [2022-02-09 00:29:21,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:29:21,526 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 222 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:21,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 2693 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:21,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2022-02-09 00:29:21,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 9550. [2022-02-09 00:29:21,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9550 states, 9549 states have (on average 2.778615561838936) internal successors, (26533), 9549 states have internal predecessors, (26533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:21,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9550 states to 9550 states and 26533 transitions. [2022-02-09 00:29:21,672 INFO L78 Accepts]: Start accepts. Automaton has 9550 states and 26533 transitions. Word has length 227 [2022-02-09 00:29:21,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:21,672 INFO L470 AbstractCegarLoop]: Abstraction has 9550 states and 26533 transitions. [2022-02-09 00:29:21,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:21,673 INFO L276 IsEmpty]: Start isEmpty. Operand 9550 states and 26533 transitions. [2022-02-09 00:29:21,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:21,686 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:21,686 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:21,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-02-09 00:29:21,686 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:21,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1574838221, now seen corresponding path program 5 times [2022-02-09 00:29:21,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:21,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802788732] [2022-02-09 00:29:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:21,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:21,787 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:21,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:21,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802788732] [2022-02-09 00:29:21,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802788732] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:21,787 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:21,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:21,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820756529] [2022-02-09 00:29:21,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:21,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:21,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:21,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:21,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:21,788 INFO L87 Difference]: Start difference. First operand 9550 states and 26533 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:22,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:22,006 INFO L93 Difference]: Finished difference Result 9701 states and 26838 transitions. [2022-02-09 00:29:22,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:22,006 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:22,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:22,023 INFO L225 Difference]: With dead ends: 9701 [2022-02-09 00:29:22,023 INFO L226 Difference]: Without dead ends: 9453 [2022-02-09 00:29:22,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:29:22,024 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 249 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:22,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2825 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:22,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9453 states. [2022-02-09 00:29:22,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9453 to 9368. [2022-02-09 00:29:22,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9368 states, 9367 states have (on average 2.7838155225792676) internal successors, (26076), 9367 states have internal predecessors, (26076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:22,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 26076 transitions. [2022-02-09 00:29:22,171 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 26076 transitions. Word has length 227 [2022-02-09 00:29:22,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:22,172 INFO L470 AbstractCegarLoop]: Abstraction has 9368 states and 26076 transitions. [2022-02-09 00:29:22,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:22,172 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 26076 transitions. [2022-02-09 00:29:22,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:22,185 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:22,185 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:22,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-02-09 00:29:22,185 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:22,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:22,186 INFO L85 PathProgramCache]: Analyzing trace with hash 802199471, now seen corresponding path program 1 times [2022-02-09 00:29:22,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:22,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815870634] [2022-02-09 00:29:22,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:22,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:22,215 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:22,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:22,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815870634] [2022-02-09 00:29:22,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815870634] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:22,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:22,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:29:22,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699567261] [2022-02-09 00:29:22,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:22,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:29:22,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:22,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:29:22,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:29:22,216 INFO L87 Difference]: Start difference. First operand 9368 states and 26076 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:22,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:22,298 INFO L93 Difference]: Finished difference Result 14651 states and 40779 transitions. [2022-02-09 00:29:22,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 00:29:22,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:22,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:22,327 INFO L225 Difference]: With dead ends: 14651 [2022-02-09 00:29:22,327 INFO L226 Difference]: Without dead ends: 14651 [2022-02-09 00:29:22,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:29:22,327 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 226 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:22,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 1177 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:29:22,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14651 states. [2022-02-09 00:29:22,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14651 to 11546. [2022-02-09 00:29:22,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11546 states, 11545 states have (on average 2.7801645734084017) internal successors, (32097), 11545 states have internal predecessors, (32097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:22,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11546 states to 11546 states and 32097 transitions. [2022-02-09 00:29:22,556 INFO L78 Accepts]: Start accepts. Automaton has 11546 states and 32097 transitions. Word has length 227 [2022-02-09 00:29:22,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:22,556 INFO L470 AbstractCegarLoop]: Abstraction has 11546 states and 32097 transitions. [2022-02-09 00:29:22,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:22,556 INFO L276 IsEmpty]: Start isEmpty. Operand 11546 states and 32097 transitions. [2022-02-09 00:29:22,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:22,572 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:22,573 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:22,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-02-09 00:29:22,573 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:22,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:22,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1326718921, now seen corresponding path program 6 times [2022-02-09 00:29:22,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:22,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131330071] [2022-02-09 00:29:22,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:22,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:22,679 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:22,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:22,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131330071] [2022-02-09 00:29:22,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131330071] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:22,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:22,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:22,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775986650] [2022-02-09 00:29:22,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:22,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:22,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:22,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:22,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:22,680 INFO L87 Difference]: Start difference. First operand 11546 states and 32097 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:22,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:22,974 INFO L93 Difference]: Finished difference Result 12578 states and 34703 transitions. [2022-02-09 00:29:22,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:22,974 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:22,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:22,997 INFO L225 Difference]: With dead ends: 12578 [2022-02-09 00:29:22,998 INFO L226 Difference]: Without dead ends: 12431 [2022-02-09 00:29:22,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2022-02-09 00:29:22,998 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 230 mSDsluCounter, 2491 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2729 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:22,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2729 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:23,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12431 states. [2022-02-09 00:29:23,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12431 to 12005. [2022-02-09 00:29:23,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12005 states, 12004 states have (on average 2.7716594468510496) internal successors, (33271), 12004 states have internal predecessors, (33271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:23,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12005 states to 12005 states and 33271 transitions. [2022-02-09 00:29:23,184 INFO L78 Accepts]: Start accepts. Automaton has 12005 states and 33271 transitions. Word has length 227 [2022-02-09 00:29:23,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:23,184 INFO L470 AbstractCegarLoop]: Abstraction has 12005 states and 33271 transitions. [2022-02-09 00:29:23,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:23,184 INFO L276 IsEmpty]: Start isEmpty. Operand 12005 states and 33271 transitions. [2022-02-09 00:29:23,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:23,201 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:23,201 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:23,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-02-09 00:29:23,201 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:23,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:23,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1879527629, now seen corresponding path program 7 times [2022-02-09 00:29:23,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:23,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413561140] [2022-02-09 00:29:23,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:23,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:23,304 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:23,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:23,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413561140] [2022-02-09 00:29:23,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413561140] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:23,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:23,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:23,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328870100] [2022-02-09 00:29:23,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:23,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:23,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:23,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:23,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:23,306 INFO L87 Difference]: Start difference. First operand 12005 states and 33271 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:23,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:23,658 INFO L93 Difference]: Finished difference Result 12602 states and 34719 transitions. [2022-02-09 00:29:23,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 00:29:23,658 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:23,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:23,680 INFO L225 Difference]: With dead ends: 12602 [2022-02-09 00:29:23,680 INFO L226 Difference]: Without dead ends: 12175 [2022-02-09 00:29:23,680 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2022-02-09 00:29:23,680 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 241 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:23,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [241 Valid, 2473 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:23,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12175 states. [2022-02-09 00:29:23,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12175 to 11749. [2022-02-09 00:29:23,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11749 states, 11748 states have (on average 2.772131426625809) internal successors, (32567), 11748 states have internal predecessors, (32567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:23,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11749 states to 11749 states and 32567 transitions. [2022-02-09 00:29:23,869 INFO L78 Accepts]: Start accepts. Automaton has 11749 states and 32567 transitions. Word has length 227 [2022-02-09 00:29:23,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:23,869 INFO L470 AbstractCegarLoop]: Abstraction has 11749 states and 32567 transitions. [2022-02-09 00:29:23,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:23,869 INFO L276 IsEmpty]: Start isEmpty. Operand 11749 states and 32567 transitions. [2022-02-09 00:29:23,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:23,886 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:23,886 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:23,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-02-09 00:29:23,886 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:23,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:23,886 INFO L85 PathProgramCache]: Analyzing trace with hash -2504331, now seen corresponding path program 8 times [2022-02-09 00:29:23,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:23,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35342768] [2022-02-09 00:29:23,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:23,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:23,990 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:23,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:23,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35342768] [2022-02-09 00:29:23,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35342768] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:23,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:23,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:23,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116023473] [2022-02-09 00:29:23,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:23,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:23,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:23,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:23,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:23,991 INFO L87 Difference]: Start difference. First operand 11749 states and 32567 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:24,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:24,243 INFO L93 Difference]: Finished difference Result 12292 states and 33916 transitions. [2022-02-09 00:29:24,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 00:29:24,243 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:24,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:24,264 INFO L225 Difference]: With dead ends: 12292 [2022-02-09 00:29:24,264 INFO L226 Difference]: Without dead ends: 12074 [2022-02-09 00:29:24,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-02-09 00:29:24,265 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 155 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:24,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 2440 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:24,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12074 states. [2022-02-09 00:29:24,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12074 to 11717. [2022-02-09 00:29:24,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11717 states, 11716 states have (on average 2.7721918743598497) internal successors, (32479), 11716 states have internal predecessors, (32479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:24,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11717 states to 11717 states and 32479 transitions. [2022-02-09 00:29:24,465 INFO L78 Accepts]: Start accepts. Automaton has 11717 states and 32479 transitions. Word has length 227 [2022-02-09 00:29:24,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:24,465 INFO L470 AbstractCegarLoop]: Abstraction has 11717 states and 32479 transitions. [2022-02-09 00:29:24,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:24,465 INFO L276 IsEmpty]: Start isEmpty. Operand 11717 states and 32479 transitions. [2022-02-09 00:29:24,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:24,481 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:24,481 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:24,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-02-09 00:29:24,481 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:24,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:24,482 INFO L85 PathProgramCache]: Analyzing trace with hash -818213115, now seen corresponding path program 9 times [2022-02-09 00:29:24,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:24,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917651440] [2022-02-09 00:29:24,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:24,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:24,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:24,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917651440] [2022-02-09 00:29:24,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917651440] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:24,590 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:24,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:24,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575077754] [2022-02-09 00:29:24,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:24,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:24,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:24,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:24,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:24,590 INFO L87 Difference]: Start difference. First operand 11717 states and 32479 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:24,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:24,810 INFO L93 Difference]: Finished difference Result 12140 states and 33548 transitions. [2022-02-09 00:29:24,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:24,810 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:24,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:24,832 INFO L225 Difference]: With dead ends: 12140 [2022-02-09 00:29:24,832 INFO L226 Difference]: Without dead ends: 11907 [2022-02-09 00:29:24,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:24,832 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 138 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2620 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:24,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 2620 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:24,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11907 states. [2022-02-09 00:29:24,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11907 to 11550. [2022-02-09 00:29:24,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11550 states, 11549 states have (on average 2.779807775564984) internal successors, (32104), 11549 states have internal predecessors, (32104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:25,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11550 states to 11550 states and 32104 transitions. [2022-02-09 00:29:25,015 INFO L78 Accepts]: Start accepts. Automaton has 11550 states and 32104 transitions. Word has length 227 [2022-02-09 00:29:25,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:25,016 INFO L470 AbstractCegarLoop]: Abstraction has 11550 states and 32104 transitions. [2022-02-09 00:29:25,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:25,016 INFO L276 IsEmpty]: Start isEmpty. Operand 11550 states and 32104 transitions. [2022-02-09 00:29:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:25,032 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:25,032 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:25,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-02-09 00:29:25,033 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:25,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:25,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1387001287, now seen corresponding path program 10 times [2022-02-09 00:29:25,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:25,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317219722] [2022-02-09 00:29:25,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:25,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:25,131 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:25,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:25,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317219722] [2022-02-09 00:29:25,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317219722] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:25,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:25,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:25,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067356931] [2022-02-09 00:29:25,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:25,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:25,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:25,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:25,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:25,132 INFO L87 Difference]: Start difference. First operand 11550 states and 32104 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:25,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:25,371 INFO L93 Difference]: Finished difference Result 12379 states and 34183 transitions. [2022-02-09 00:29:25,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 00:29:25,372 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:25,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:25,392 INFO L225 Difference]: With dead ends: 12379 [2022-02-09 00:29:25,392 INFO L226 Difference]: Without dead ends: 12232 [2022-02-09 00:29:25,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:25,392 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 187 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:25,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 2435 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:25,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12232 states. [2022-02-09 00:29:25,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12232 to 11962. [2022-02-09 00:29:25,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11962 states, 11961 states have (on average 2.7719254242956275) internal successors, (33155), 11961 states have internal predecessors, (33155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:25,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11962 states to 11962 states and 33155 transitions. [2022-02-09 00:29:25,577 INFO L78 Accepts]: Start accepts. Automaton has 11962 states and 33155 transitions. Word has length 227 [2022-02-09 00:29:25,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:25,577 INFO L470 AbstractCegarLoop]: Abstraction has 11962 states and 33155 transitions. [2022-02-09 00:29:25,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:25,577 INFO L276 IsEmpty]: Start isEmpty. Operand 11962 states and 33155 transitions. [2022-02-09 00:29:25,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:25,593 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:25,594 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:25,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-02-09 00:29:25,594 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:25,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:25,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1819245263, now seen corresponding path program 11 times [2022-02-09 00:29:25,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:25,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694965510] [2022-02-09 00:29:25,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:25,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:25,698 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:25,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:25,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694965510] [2022-02-09 00:29:25,699 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694965510] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:25,699 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:25,699 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:25,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496221537] [2022-02-09 00:29:25,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:25,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:25,699 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:25,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:25,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:25,699 INFO L87 Difference]: Start difference. First operand 11962 states and 33155 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:25,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:25,990 INFO L93 Difference]: Finished difference Result 12403 states and 34199 transitions. [2022-02-09 00:29:25,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 00:29:25,990 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:25,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:26,008 INFO L225 Difference]: With dead ends: 12403 [2022-02-09 00:29:26,008 INFO L226 Difference]: Without dead ends: 11976 [2022-02-09 00:29:26,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:26,009 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 189 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:26,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 2191 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:26,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11976 states. [2022-02-09 00:29:26,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11976 to 11706. [2022-02-09 00:29:26,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11706 states, 11705 states have (on average 2.772404955147373) internal successors, (32451), 11705 states have internal predecessors, (32451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:26,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11706 states to 11706 states and 32451 transitions. [2022-02-09 00:29:26,185 INFO L78 Accepts]: Start accepts. Automaton has 11706 states and 32451 transitions. Word has length 227 [2022-02-09 00:29:26,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:26,185 INFO L470 AbstractCegarLoop]: Abstraction has 11706 states and 32451 transitions. [2022-02-09 00:29:26,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 11706 states and 32451 transitions. [2022-02-09 00:29:26,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:26,201 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:26,202 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:26,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-02-09 00:29:26,202 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:26,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:26,202 INFO L85 PathProgramCache]: Analyzing trace with hash -62786697, now seen corresponding path program 12 times [2022-02-09 00:29:26,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:26,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700389553] [2022-02-09 00:29:26,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:26,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:26,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:26,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700389553] [2022-02-09 00:29:26,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700389553] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:26,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:26,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:26,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148607806] [2022-02-09 00:29:26,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:26,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:26,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:26,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:26,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:26,304 INFO L87 Difference]: Start difference. First operand 11706 states and 32451 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:26,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:26,509 INFO L93 Difference]: Finished difference Result 11973 states and 33116 transitions. [2022-02-09 00:29:26,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-09 00:29:26,510 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:26,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:26,530 INFO L225 Difference]: With dead ends: 11973 [2022-02-09 00:29:26,530 INFO L226 Difference]: Without dead ends: 11755 [2022-02-09 00:29:26,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-02-09 00:29:26,531 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 119 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:26,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 2345 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:26,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11755 states. [2022-02-09 00:29:26,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11755 to 11554. [2022-02-09 00:29:26,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11554 states, 11553 states have (on average 2.779451224790098) internal successors, (32111), 11553 states have internal predecessors, (32111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:26,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11554 states to 11554 states and 32111 transitions. [2022-02-09 00:29:26,713 INFO L78 Accepts]: Start accepts. Automaton has 11554 states and 32111 transitions. Word has length 227 [2022-02-09 00:29:26,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:26,714 INFO L470 AbstractCegarLoop]: Abstraction has 11554 states and 32111 transitions. [2022-02-09 00:29:26,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:26,714 INFO L276 IsEmpty]: Start isEmpty. Operand 11554 states and 32111 transitions. [2022-02-09 00:29:26,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:26,730 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:26,730 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:26,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-02-09 00:29:26,730 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:26,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:26,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1786980807, now seen corresponding path program 13 times [2022-02-09 00:29:26,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:26,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572342920] [2022-02-09 00:29:26,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:26,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:26,827 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:26,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:26,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572342920] [2022-02-09 00:29:26,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572342920] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:26,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:26,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:26,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571300151] [2022-02-09 00:29:26,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:26,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:26,828 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:26,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:26,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:26,829 INFO L87 Difference]: Start difference. First operand 11554 states and 32111 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:27,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:27,055 INFO L93 Difference]: Finished difference Result 12325 states and 33970 transitions. [2022-02-09 00:29:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 00:29:27,055 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:27,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:27,076 INFO L225 Difference]: With dead ends: 12325 [2022-02-09 00:29:27,076 INFO L226 Difference]: Without dead ends: 12178 [2022-02-09 00:29:27,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:27,076 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 190 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:27,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 2128 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:27,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12178 states. [2022-02-09 00:29:27,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12178 to 11947. [2022-02-09 00:29:27,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11947 states, 11946 states have (on average 2.772141302528043) internal successors, (33116), 11946 states have internal predecessors, (33116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:27,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11947 states to 11947 states and 33116 transitions. [2022-02-09 00:29:27,269 INFO L78 Accepts]: Start accepts. Automaton has 11947 states and 33116 transitions. Word has length 227 [2022-02-09 00:29:27,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:27,269 INFO L470 AbstractCegarLoop]: Abstraction has 11947 states and 33116 transitions. [2022-02-09 00:29:27,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:27,269 INFO L276 IsEmpty]: Start isEmpty. Operand 11947 states and 33116 transitions. [2022-02-09 00:29:27,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:27,286 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:27,286 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:27,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-02-09 00:29:27,286 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:27,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:27,286 INFO L85 PathProgramCache]: Analyzing trace with hash 698260061, now seen corresponding path program 14 times [2022-02-09 00:29:27,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:27,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492774661] [2022-02-09 00:29:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:27,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:27,390 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:27,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:27,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492774661] [2022-02-09 00:29:27,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492774661] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:27,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:27,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:27,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661939587] [2022-02-09 00:29:27,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:27,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:27,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:27,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:27,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:27,392 INFO L87 Difference]: Start difference. First operand 11947 states and 33116 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:27,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:27,677 INFO L93 Difference]: Finished difference Result 12175 states and 33607 transitions. [2022-02-09 00:29:27,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 00:29:27,678 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:27,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:27,697 INFO L225 Difference]: With dead ends: 12175 [2022-02-09 00:29:27,697 INFO L226 Difference]: Without dead ends: 11748 [2022-02-09 00:29:27,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:29:27,697 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 159 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:27,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 2538 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:27,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11748 states. [2022-02-09 00:29:27,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11748 to 11586. [2022-02-09 00:29:27,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11586 states, 11585 states have (on average 2.776607682347864) internal successors, (32167), 11585 states have internal predecessors, (32167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:27,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11586 states to 11586 states and 32167 transitions. [2022-02-09 00:29:27,878 INFO L78 Accepts]: Start accepts. Automaton has 11586 states and 32167 transitions. Word has length 227 [2022-02-09 00:29:27,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:27,878 INFO L470 AbstractCegarLoop]: Abstraction has 11586 states and 32167 transitions. [2022-02-09 00:29:27,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:27,879 INFO L276 IsEmpty]: Start isEmpty. Operand 11586 states and 32167 transitions. [2022-02-09 00:29:27,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:27,895 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:27,895 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:27,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-02-09 00:29:27,895 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:27,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:27,896 INFO L85 PathProgramCache]: Analyzing trace with hash 168555327, now seen corresponding path program 15 times [2022-02-09 00:29:27,896 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:27,896 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126223912] [2022-02-09 00:29:27,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:27,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:27,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:27,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126223912] [2022-02-09 00:29:27,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126223912] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:27,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:27,993 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:27,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422137073] [2022-02-09 00:29:27,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:27,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:27,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:27,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:27,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:27,994 INFO L87 Difference]: Start difference. First operand 11586 states and 32167 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:28,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:28,168 INFO L93 Difference]: Finished difference Result 11745 states and 32524 transitions. [2022-02-09 00:29:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:28,172 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:28,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:28,194 INFO L225 Difference]: With dead ends: 11745 [2022-02-09 00:29:28,194 INFO L226 Difference]: Without dead ends: 11542 [2022-02-09 00:29:28,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:28,195 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 96 mSDsluCounter, 2193 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:28,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 2413 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:28,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11542 states. [2022-02-09 00:29:28,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11542 to 11542. [2022-02-09 00:29:28,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11542 states, 11541 states have (on average 2.7798284377436966) internal successors, (32082), 11541 states have internal predecessors, (32082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:28,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11542 states to 11542 states and 32082 transitions. [2022-02-09 00:29:28,364 INFO L78 Accepts]: Start accepts. Automaton has 11542 states and 32082 transitions. Word has length 227 [2022-02-09 00:29:28,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:28,364 INFO L470 AbstractCegarLoop]: Abstraction has 11542 states and 32082 transitions. [2022-02-09 00:29:28,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:28,364 INFO L276 IsEmpty]: Start isEmpty. Operand 11542 states and 32082 transitions. [2022-02-09 00:29:28,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:28,380 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:28,380 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:28,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-02-09 00:29:28,380 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:28,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:28,380 INFO L85 PathProgramCache]: Analyzing trace with hash -2010123885, now seen corresponding path program 16 times [2022-02-09 00:29:28,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:28,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748819032] [2022-02-09 00:29:28,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:28,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:28,474 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:28,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:28,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748819032] [2022-02-09 00:29:28,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748819032] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:28,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:28,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:28,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734794389] [2022-02-09 00:29:28,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:28,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:28,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:28,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:28,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:28,475 INFO L87 Difference]: Start difference. First operand 11542 states and 32082 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:28,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:28,724 INFO L93 Difference]: Finished difference Result 13860 states and 38299 transitions. [2022-02-09 00:29:28,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 00:29:28,725 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:28,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:28,749 INFO L225 Difference]: With dead ends: 13860 [2022-02-09 00:29:28,749 INFO L226 Difference]: Without dead ends: 13713 [2022-02-09 00:29:28,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:28,750 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 244 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:28,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 2497 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:28,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13713 states. [2022-02-09 00:29:28,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13713 to 11950. [2022-02-09 00:29:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11950 states, 11949 states have (on average 2.7719474433006948) internal successors, (33122), 11949 states have internal predecessors, (33122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:28,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11950 states to 11950 states and 33122 transitions. [2022-02-09 00:29:28,936 INFO L78 Accepts]: Start accepts. Automaton has 11950 states and 33122 transitions. Word has length 227 [2022-02-09 00:29:28,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:28,936 INFO L470 AbstractCegarLoop]: Abstraction has 11950 states and 33122 transitions. [2022-02-09 00:29:28,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:28,936 INFO L276 IsEmpty]: Start isEmpty. Operand 11950 states and 33122 transitions. [2022-02-09 00:29:28,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:28,953 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:28,953 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:28,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-02-09 00:29:28,953 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:28,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:28,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1196122665, now seen corresponding path program 17 times [2022-02-09 00:29:28,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:28,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033967908] [2022-02-09 00:29:28,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:28,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:29,080 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:29,081 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:29,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033967908] [2022-02-09 00:29:29,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033967908] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:29,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:29,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:29,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242055243] [2022-02-09 00:29:29,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:29,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:29,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:29,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:29,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:29,082 INFO L87 Difference]: Start difference. First operand 11950 states and 33122 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:29,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:29,368 INFO L93 Difference]: Finished difference Result 13884 states and 38315 transitions. [2022-02-09 00:29:29,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:29,368 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:29,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:29,393 INFO L225 Difference]: With dead ends: 13884 [2022-02-09 00:29:29,393 INFO L226 Difference]: Without dead ends: 13457 [2022-02-09 00:29:29,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-02-09 00:29:29,393 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 267 mSDsluCounter, 2025 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2273 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:29,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [267 Valid, 2273 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:29,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13457 states. [2022-02-09 00:29:29,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13457 to 11694. [2022-02-09 00:29:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11694 states, 11693 states have (on average 2.7724279483451637) internal successors, (32418), 11693 states have internal predecessors, (32418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:29,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11694 states to 11694 states and 32418 transitions. [2022-02-09 00:29:29,588 INFO L78 Accepts]: Start accepts. Automaton has 11694 states and 32418 transitions. Word has length 227 [2022-02-09 00:29:29,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:29,588 INFO L470 AbstractCegarLoop]: Abstraction has 11694 states and 32418 transitions. [2022-02-09 00:29:29,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:29,589 INFO L276 IsEmpty]: Start isEmpty. Operand 11694 states and 32418 transitions. [2022-02-09 00:29:29,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:29,604 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:29,604 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:29,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-02-09 00:29:29,605 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:29,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:29,605 INFO L85 PathProgramCache]: Analyzing trace with hash -685909295, now seen corresponding path program 18 times [2022-02-09 00:29:29,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:29,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005896688] [2022-02-09 00:29:29,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:29,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:29,708 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:29,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:29,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005896688] [2022-02-09 00:29:29,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005896688] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:29,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:29,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:29,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844391873] [2022-02-09 00:29:29,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:29,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:29,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:29,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:29,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:29,709 INFO L87 Difference]: Start difference. First operand 11694 states and 32418 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:29,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:29,939 INFO L93 Difference]: Finished difference Result 13574 states and 37512 transitions. [2022-02-09 00:29:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 00:29:29,939 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:29,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:29,964 INFO L225 Difference]: With dead ends: 13574 [2022-02-09 00:29:29,964 INFO L226 Difference]: Without dead ends: 13356 [2022-02-09 00:29:29,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-02-09 00:29:29,965 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 181 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 2433 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:29,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 2433 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:29,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13356 states. [2022-02-09 00:29:30,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13356 to 11662. [2022-02-09 00:29:30,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11662 states, 11661 states have (on average 2.772489494897522) internal successors, (32330), 11661 states have internal predecessors, (32330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:30,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11662 states to 11662 states and 32330 transitions. [2022-02-09 00:29:30,153 INFO L78 Accepts]: Start accepts. Automaton has 11662 states and 32330 transitions. Word has length 227 [2022-02-09 00:29:30,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:30,153 INFO L470 AbstractCegarLoop]: Abstraction has 11662 states and 32330 transitions. [2022-02-09 00:29:30,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:30,153 INFO L276 IsEmpty]: Start isEmpty. Operand 11662 states and 32330 transitions. [2022-02-09 00:29:30,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:30,169 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:30,169 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:30,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-02-09 00:29:30,170 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:30,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:30,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1501618079, now seen corresponding path program 19 times [2022-02-09 00:29:30,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:30,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682858046] [2022-02-09 00:29:30,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:30,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:30,264 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:30,265 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:30,265 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682858046] [2022-02-09 00:29:30,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682858046] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:30,265 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:30,265 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:30,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537554755] [2022-02-09 00:29:30,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:30,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:30,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:30,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:30,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:30,266 INFO L87 Difference]: Start difference. First operand 11662 states and 32330 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:30,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:30,471 INFO L93 Difference]: Finished difference Result 13422 states and 37144 transitions. [2022-02-09 00:29:30,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:30,471 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:30,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:30,495 INFO L225 Difference]: With dead ends: 13422 [2022-02-09 00:29:30,495 INFO L226 Difference]: Without dead ends: 13189 [2022-02-09 00:29:30,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:30,496 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 174 mSDsluCounter, 1773 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:30,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2013 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:30,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13189 states. [2022-02-09 00:29:30,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13189 to 11495. [2022-02-09 00:29:30,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11495 states, 11494 states have (on average 2.7801461632155906) internal successors, (31955), 11494 states have internal predecessors, (31955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11495 states to 11495 states and 31955 transitions. [2022-02-09 00:29:30,763 INFO L78 Accepts]: Start accepts. Automaton has 11495 states and 31955 transitions. Word has length 227 [2022-02-09 00:29:30,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:30,763 INFO L470 AbstractCegarLoop]: Abstraction has 11495 states and 31955 transitions. [2022-02-09 00:29:30,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:30,763 INFO L276 IsEmpty]: Start isEmpty. Operand 11495 states and 31955 transitions. [2022-02-09 00:29:30,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:30,778 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:30,778 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:30,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-02-09 00:29:30,778 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:30,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:30,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2070406251, now seen corresponding path program 20 times [2022-02-09 00:29:30,779 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:30,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277415320] [2022-02-09 00:29:30,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:30,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:30,874 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:30,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:30,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277415320] [2022-02-09 00:29:30,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277415320] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:30,874 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:30,874 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:30,874 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114228146] [2022-02-09 00:29:30,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:30,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:30,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:30,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:30,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:30,875 INFO L87 Difference]: Start difference. First operand 11495 states and 31955 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:31,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:31,133 INFO L93 Difference]: Finished difference Result 13970 states and 38585 transitions. [2022-02-09 00:29:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 00:29:31,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:31,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:31,159 INFO L225 Difference]: With dead ends: 13970 [2022-02-09 00:29:31,159 INFO L226 Difference]: Without dead ends: 13823 [2022-02-09 00:29:31,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:31,160 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 230 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:31,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2624 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:31,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13823 states. [2022-02-09 00:29:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13823 to 11907. [2022-02-09 00:29:31,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11907 states, 11906 states have (on average 2.772215689568285) internal successors, (33006), 11906 states have internal predecessors, (33006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11907 states to 11907 states and 33006 transitions. [2022-02-09 00:29:31,354 INFO L78 Accepts]: Start accepts. Automaton has 11907 states and 33006 transitions. Word has length 227 [2022-02-09 00:29:31,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:31,354 INFO L470 AbstractCegarLoop]: Abstraction has 11907 states and 33006 transitions. [2022-02-09 00:29:31,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:31,354 INFO L276 IsEmpty]: Start isEmpty. Operand 11907 states and 33006 transitions. [2022-02-09 00:29:31,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:31,371 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:31,371 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:31,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-02-09 00:29:31,371 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:31,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:31,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1135840299, now seen corresponding path program 21 times [2022-02-09 00:29:31,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:31,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771548755] [2022-02-09 00:29:31,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:31,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:31,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:31,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771548755] [2022-02-09 00:29:31,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771548755] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:31,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:31,471 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:31,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232990865] [2022-02-09 00:29:31,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:31,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:31,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:31,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:31,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:31,472 INFO L87 Difference]: Start difference. First operand 11907 states and 33006 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:31,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:31,795 INFO L93 Difference]: Finished difference Result 13994 states and 38601 transitions. [2022-02-09 00:29:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 00:29:31,796 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:31,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:31,823 INFO L225 Difference]: With dead ends: 13994 [2022-02-09 00:29:31,823 INFO L226 Difference]: Without dead ends: 13567 [2022-02-09 00:29:31,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-02-09 00:29:31,823 INFO L933 BasicCegarLoop]: 284 mSDtfsCounter, 240 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:31,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 2600 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:31,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13567 states. [2022-02-09 00:29:31,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13567 to 11651. [2022-02-09 00:29:31,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11651 states, 11650 states have (on average 2.7727038626609444) internal successors, (32302), 11650 states have internal predecessors, (32302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:32,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11651 states to 11651 states and 32302 transitions. [2022-02-09 00:29:32,012 INFO L78 Accepts]: Start accepts. Automaton has 11651 states and 32302 transitions. Word has length 227 [2022-02-09 00:29:32,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:32,012 INFO L470 AbstractCegarLoop]: Abstraction has 11651 states and 32302 transitions. [2022-02-09 00:29:32,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:32,012 INFO L276 IsEmpty]: Start isEmpty. Operand 11651 states and 32302 transitions. [2022-02-09 00:29:32,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:32,027 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:32,028 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:32,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-02-09 00:29:32,028 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:32,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:32,028 INFO L85 PathProgramCache]: Analyzing trace with hash -746191661, now seen corresponding path program 22 times [2022-02-09 00:29:32,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:32,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83063736] [2022-02-09 00:29:32,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:32,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:32,122 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:32,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:32,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83063736] [2022-02-09 00:29:32,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83063736] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:32,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:32,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:32,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811188926] [2022-02-09 00:29:32,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:32,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:32,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:32,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:32,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:32,123 INFO L87 Difference]: Start difference. First operand 11651 states and 32302 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:32,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:32,349 INFO L93 Difference]: Finished difference Result 13564 states and 37518 transitions. [2022-02-09 00:29:32,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:32,349 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:32,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:32,375 INFO L225 Difference]: With dead ends: 13564 [2022-02-09 00:29:32,375 INFO L226 Difference]: Without dead ends: 13346 [2022-02-09 00:29:32,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-02-09 00:29:32,375 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 167 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:32,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 2344 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:32,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13346 states. [2022-02-09 00:29:32,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13346 to 11499. [2022-02-09 00:29:32,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11499 states, 11498 states have (on average 2.779787789180727) internal successors, (31962), 11498 states have internal predecessors, (31962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:32,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11499 states to 11499 states and 31962 transitions. [2022-02-09 00:29:32,598 INFO L78 Accepts]: Start accepts. Automaton has 11499 states and 31962 transitions. Word has length 227 [2022-02-09 00:29:32,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:32,599 INFO L470 AbstractCegarLoop]: Abstraction has 11499 states and 31962 transitions. [2022-02-09 00:29:32,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:32,599 INFO L276 IsEmpty]: Start isEmpty. Operand 11499 states and 31962 transitions. [2022-02-09 00:29:32,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:32,614 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:32,614 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:32,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-02-09 00:29:32,614 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:32,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:32,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1103575843, now seen corresponding path program 23 times [2022-02-09 00:29:32,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:32,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028448888] [2022-02-09 00:29:32,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:32,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:32,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:32,713 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:32,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:32,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028448888] [2022-02-09 00:29:32,713 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028448888] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:32,713 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:32,713 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:32,713 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535996920] [2022-02-09 00:29:32,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:32,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:32,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:32,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:32,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:32,714 INFO L87 Difference]: Start difference. First operand 11499 states and 31962 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:33,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:33,008 INFO L93 Difference]: Finished difference Result 13964 states and 38504 transitions. [2022-02-09 00:29:33,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 00:29:33,008 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:33,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:33,034 INFO L225 Difference]: With dead ends: 13964 [2022-02-09 00:29:33,034 INFO L226 Difference]: Without dead ends: 13817 [2022-02-09 00:29:33,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:29:33,034 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 224 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:33,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 2654 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:33,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13817 states. [2022-02-09 00:29:33,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13817 to 11892. [2022-02-09 00:29:33,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11892 states, 11891 states have (on average 2.7724329324699353) internal successors, (32967), 11891 states have internal predecessors, (32967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:33,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11892 states to 11892 states and 32967 transitions. [2022-02-09 00:29:33,236 INFO L78 Accepts]: Start accepts. Automaton has 11892 states and 32967 transitions. Word has length 227 [2022-02-09 00:29:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:33,237 INFO L470 AbstractCegarLoop]: Abstraction has 11892 states and 32967 transitions. [2022-02-09 00:29:33,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:33,237 INFO L276 IsEmpty]: Start isEmpty. Operand 11892 states and 32967 transitions. [2022-02-09 00:29:33,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:33,253 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:33,253 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:33,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-02-09 00:29:33,254 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:33,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:33,254 INFO L85 PathProgramCache]: Analyzing trace with hash 14855097, now seen corresponding path program 24 times [2022-02-09 00:29:33,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:33,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96171193] [2022-02-09 00:29:33,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:33,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:33,357 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:33,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:33,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96171193] [2022-02-09 00:29:33,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96171193] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:33,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:33,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:33,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306745163] [2022-02-09 00:29:33,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:33,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:33,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:33,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:33,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:33,358 INFO L87 Difference]: Start difference. First operand 11892 states and 32967 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:33,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:33,636 INFO L93 Difference]: Finished difference Result 13814 states and 38141 transitions. [2022-02-09 00:29:33,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 00:29:33,636 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:33,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:33,661 INFO L225 Difference]: With dead ends: 13814 [2022-02-09 00:29:33,661 INFO L226 Difference]: Without dead ends: 13387 [2022-02-09 00:29:33,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:29:33,661 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 206 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 2647 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:33,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 2647 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:33,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13387 states. [2022-02-09 00:29:33,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13387 to 11531. [2022-02-09 00:29:33,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11531 states, 11530 states have (on average 2.77692974848222) internal successors, (32018), 11530 states have internal predecessors, (32018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:33,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11531 states to 11531 states and 32018 transitions. [2022-02-09 00:29:33,855 INFO L78 Accepts]: Start accepts. Automaton has 11531 states and 32018 transitions. Word has length 227 [2022-02-09 00:29:33,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:33,855 INFO L470 AbstractCegarLoop]: Abstraction has 11531 states and 32018 transitions. [2022-02-09 00:29:33,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:33,855 INFO L276 IsEmpty]: Start isEmpty. Operand 11531 states and 32018 transitions. [2022-02-09 00:29:33,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:33,872 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:33,872 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:33,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-02-09 00:29:33,872 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:33,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:33,872 INFO L85 PathProgramCache]: Analyzing trace with hash -514849637, now seen corresponding path program 25 times [2022-02-09 00:29:33,872 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:33,873 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085739682] [2022-02-09 00:29:33,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:33,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:33,965 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:33,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:33,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085739682] [2022-02-09 00:29:33,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085739682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:33,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:33,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:33,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495923616] [2022-02-09 00:29:33,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:33,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:33,966 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:33,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:33,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:33,967 INFO L87 Difference]: Start difference. First operand 11531 states and 32018 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:34,205 INFO L93 Difference]: Finished difference Result 13384 states and 37058 transitions. [2022-02-09 00:29:34,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:34,206 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:34,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:34,229 INFO L225 Difference]: With dead ends: 13384 [2022-02-09 00:29:34,229 INFO L226 Difference]: Without dead ends: 13185 [2022-02-09 00:29:34,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:34,229 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 127 mSDsluCounter, 2298 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:34,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 2530 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:34,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13185 states. [2022-02-09 00:29:34,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13185 to 11491. [2022-02-09 00:29:34,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11491 states, 11490 states have (on average 2.7801566579634467) internal successors, (31944), 11490 states have internal predecessors, (31944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:34,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11491 states to 11491 states and 31944 transitions. [2022-02-09 00:29:34,406 INFO L78 Accepts]: Start accepts. Automaton has 11491 states and 31944 transitions. Word has length 227 [2022-02-09 00:29:34,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:34,406 INFO L470 AbstractCegarLoop]: Abstraction has 11491 states and 31944 transitions. [2022-02-09 00:29:34,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:34,406 INFO L276 IsEmpty]: Start isEmpty. Operand 11491 states and 31944 transitions. [2022-02-09 00:29:34,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:34,423 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:34,423 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:34,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-02-09 00:29:34,423 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:34,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:34,424 INFO L85 PathProgramCache]: Analyzing trace with hash 805446415, now seen corresponding path program 26 times [2022-02-09 00:29:34,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:34,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989627700] [2022-02-09 00:29:34,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:34,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:34,511 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:34,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:34,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989627700] [2022-02-09 00:29:34,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989627700] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:34,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:34,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:34,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113142304] [2022-02-09 00:29:34,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:34,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:34,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:34,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:34,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:34,512 INFO L87 Difference]: Start difference. First operand 11491 states and 31944 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:34,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:34,756 INFO L93 Difference]: Finished difference Result 13762 states and 38038 transitions. [2022-02-09 00:29:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 00:29:34,756 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:34,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:34,782 INFO L225 Difference]: With dead ends: 13762 [2022-02-09 00:29:34,782 INFO L226 Difference]: Without dead ends: 13615 [2022-02-09 00:29:34,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:34,782 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 256 mSDsluCounter, 2543 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 2799 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:34,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 2799 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:34,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13615 states. [2022-02-09 00:29:34,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13615 to 12075. [2022-02-09 00:29:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12075 states, 12074 states have (on average 2.773231737618022) internal successors, (33484), 12074 states have internal predecessors, (33484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:34,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12075 states to 12075 states and 33484 transitions. [2022-02-09 00:29:34,982 INFO L78 Accepts]: Start accepts. Automaton has 12075 states and 33484 transitions. Word has length 227 [2022-02-09 00:29:34,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:34,982 INFO L470 AbstractCegarLoop]: Abstraction has 12075 states and 33484 transitions. [2022-02-09 00:29:34,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:34,982 INFO L276 IsEmpty]: Start isEmpty. Operand 12075 states and 33484 transitions. [2022-02-09 00:29:34,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:34,999 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:34,999 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:34,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-02-09 00:29:34,999 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:35,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:35,000 INFO L85 PathProgramCache]: Analyzing trace with hash -283274331, now seen corresponding path program 27 times [2022-02-09 00:29:35,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:35,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966559567] [2022-02-09 00:29:35,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:35,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:35,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:35,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966559567] [2022-02-09 00:29:35,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966559567] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:35,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:35,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:35,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079360839] [2022-02-09 00:29:35,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:35,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:35,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:35,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:35,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:35,091 INFO L87 Difference]: Start difference. First operand 12075 states and 33484 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:35,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:35,372 INFO L93 Difference]: Finished difference Result 13786 states and 38054 transitions. [2022-02-09 00:29:35,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 00:29:35,373 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:35,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:35,398 INFO L225 Difference]: With dead ends: 13786 [2022-02-09 00:29:35,398 INFO L226 Difference]: Without dead ends: 13359 [2022-02-09 00:29:35,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-02-09 00:29:35,399 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 269 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:35,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 2547 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:35,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13359 states. [2022-02-09 00:29:35,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13359 to 11819. [2022-02-09 00:29:35,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11819 states, 11818 states have (on average 2.773734980538162) internal successors, (32780), 11818 states have internal predecessors, (32780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:35,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11819 states to 11819 states and 32780 transitions. [2022-02-09 00:29:35,597 INFO L78 Accepts]: Start accepts. Automaton has 11819 states and 32780 transitions. Word has length 227 [2022-02-09 00:29:35,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:35,598 INFO L470 AbstractCegarLoop]: Abstraction has 11819 states and 32780 transitions. [2022-02-09 00:29:35,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:35,598 INFO L276 IsEmpty]: Start isEmpty. Operand 11819 states and 32780 transitions. [2022-02-09 00:29:35,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:35,614 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:35,614 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:35,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-02-09 00:29:35,614 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:35,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:35,614 INFO L85 PathProgramCache]: Analyzing trace with hash 2129661005, now seen corresponding path program 28 times [2022-02-09 00:29:35,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:35,614 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462786437] [2022-02-09 00:29:35,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:35,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:35,737 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:35,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:35,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462786437] [2022-02-09 00:29:35,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462786437] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:35,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:35,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:35,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978645520] [2022-02-09 00:29:35,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:35,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:35,738 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:35,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:35,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:35,739 INFO L87 Difference]: Start difference. First operand 11819 states and 32780 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:35,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:35,956 INFO L93 Difference]: Finished difference Result 13356 states and 36971 transitions. [2022-02-09 00:29:35,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:35,956 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:35,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:35,982 INFO L225 Difference]: With dead ends: 13356 [2022-02-09 00:29:35,983 INFO L226 Difference]: Without dead ends: 13138 [2022-02-09 00:29:35,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:29:35,983 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 201 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:35,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 2240 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:36,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13138 states. [2022-02-09 00:29:36,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13138 to 11667. [2022-02-09 00:29:36,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11667 states, 11666 states have (on average 2.7807303274472828) internal successors, (32440), 11666 states have internal predecessors, (32440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:36,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11667 states to 11667 states and 32440 transitions. [2022-02-09 00:29:36,199 INFO L78 Accepts]: Start accepts. Automaton has 11667 states and 32440 transitions. Word has length 227 [2022-02-09 00:29:36,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:36,199 INFO L470 AbstractCegarLoop]: Abstraction has 11667 states and 32440 transitions. [2022-02-09 00:29:36,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:36,199 INFO L276 IsEmpty]: Start isEmpty. Operand 11667 states and 32440 transitions. [2022-02-09 00:29:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:36,216 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:36,216 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:36,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-02-09 00:29:36,216 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:36,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:36,217 INFO L85 PathProgramCache]: Analyzing trace with hash -315538787, now seen corresponding path program 29 times [2022-02-09 00:29:36,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:36,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525541642] [2022-02-09 00:29:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:36,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:36,307 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:36,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:36,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525541642] [2022-02-09 00:29:36,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525541642] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:36,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:36,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:36,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583215294] [2022-02-09 00:29:36,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:36,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:36,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:36,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:36,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:36,308 INFO L87 Difference]: Start difference. First operand 11667 states and 32440 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:36,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:36,577 INFO L93 Difference]: Finished difference Result 13909 states and 38359 transitions. [2022-02-09 00:29:36,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:36,578 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:36,604 INFO L225 Difference]: With dead ends: 13909 [2022-02-09 00:29:36,604 INFO L226 Difference]: Without dead ends: 13762 [2022-02-09 00:29:36,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2022-02-09 00:29:36,605 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 315 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:36,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 2527 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:36,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13762 states. [2022-02-09 00:29:36,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13762 to 12060. [2022-02-09 00:29:36,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12060 states, 12059 states have (on average 2.7734472178455927) internal successors, (33445), 12059 states have internal predecessors, (33445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:36,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12060 states to 12060 states and 33445 transitions. [2022-02-09 00:29:36,808 INFO L78 Accepts]: Start accepts. Automaton has 12060 states and 33445 transitions. Word has length 227 [2022-02-09 00:29:36,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:36,808 INFO L470 AbstractCegarLoop]: Abstraction has 12060 states and 33445 transitions. [2022-02-09 00:29:36,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:36,808 INFO L276 IsEmpty]: Start isEmpty. Operand 12060 states and 33445 transitions. [2022-02-09 00:29:36,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:36,824 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:36,824 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:36,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-02-09 00:29:36,824 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:36,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:36,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1404259533, now seen corresponding path program 30 times [2022-02-09 00:29:36,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:36,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552869755] [2022-02-09 00:29:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:36,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:36,917 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:36,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:36,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552869755] [2022-02-09 00:29:36,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552869755] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:36,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:36,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:36,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677159655] [2022-02-09 00:29:36,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:36,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:36,918 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:36,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:36,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:36,918 INFO L87 Difference]: Start difference. First operand 12060 states and 33445 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:37,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:37,222 INFO L93 Difference]: Finished difference Result 13759 states and 37996 transitions. [2022-02-09 00:29:37,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 00:29:37,223 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:37,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:37,250 INFO L225 Difference]: With dead ends: 13759 [2022-02-09 00:29:37,251 INFO L226 Difference]: Without dead ends: 13332 [2022-02-09 00:29:37,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2022-02-09 00:29:37,251 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 295 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:37,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 2769 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:37,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13332 states. [2022-02-09 00:29:37,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13332 to 11699. [2022-02-09 00:29:37,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11699 states, 11698 states have (on average 2.7779107539750383) internal successors, (32496), 11698 states have internal predecessors, (32496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11699 states to 11699 states and 32496 transitions. [2022-02-09 00:29:37,528 INFO L78 Accepts]: Start accepts. Automaton has 11699 states and 32496 transitions. Word has length 227 [2022-02-09 00:29:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:37,528 INFO L470 AbstractCegarLoop]: Abstraction has 11699 states and 32496 transitions. [2022-02-09 00:29:37,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 11699 states and 32496 transitions. [2022-02-09 00:29:37,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:37,545 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:37,545 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:37,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-02-09 00:29:37,545 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:37,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:37,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1933964267, now seen corresponding path program 31 times [2022-02-09 00:29:37,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:37,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17937717] [2022-02-09 00:29:37,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:37,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:37,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:37,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17937717] [2022-02-09 00:29:37,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17937717] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:37,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:37,638 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:37,638 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831098185] [2022-02-09 00:29:37,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:37,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:37,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:37,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:37,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:37,639 INFO L87 Difference]: Start difference. First operand 11699 states and 32496 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:37,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:37,848 INFO L93 Difference]: Finished difference Result 13329 states and 36913 transitions. [2022-02-09 00:29:37,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:37,848 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:37,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:37,873 INFO L225 Difference]: With dead ends: 13329 [2022-02-09 00:29:37,873 INFO L226 Difference]: Without dead ends: 13134 [2022-02-09 00:29:37,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-02-09 00:29:37,874 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 174 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:37,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 2725 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:37,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13134 states. [2022-02-09 00:29:38,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13134 to 11663. [2022-02-09 00:29:38,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11663 states, 11662 states have (on average 2.7807408677756817) internal successors, (32429), 11662 states have internal predecessors, (32429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11663 states to 11663 states and 32429 transitions. [2022-02-09 00:29:38,069 INFO L78 Accepts]: Start accepts. Automaton has 11663 states and 32429 transitions. Word has length 227 [2022-02-09 00:29:38,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:38,070 INFO L470 AbstractCegarLoop]: Abstraction has 11663 states and 32429 transitions. [2022-02-09 00:29:38,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:38,070 INFO L276 IsEmpty]: Start isEmpty. Operand 11663 states and 32429 transitions. [2022-02-09 00:29:38,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:38,086 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:38,086 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:38,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-02-09 00:29:38,086 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:38,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:38,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1079264617, now seen corresponding path program 32 times [2022-02-09 00:29:38,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:38,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276868671] [2022-02-09 00:29:38,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:38,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:38,172 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:38,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:38,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276868671] [2022-02-09 00:29:38,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276868671] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:38,173 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:38,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:38,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857117832] [2022-02-09 00:29:38,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:38,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:38,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:38,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:38,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:38,174 INFO L87 Difference]: Start difference. First operand 11663 states and 32429 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:38,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:38,446 INFO L93 Difference]: Finished difference Result 14563 states and 40037 transitions. [2022-02-09 00:29:38,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:29:38,446 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:38,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:38,475 INFO L225 Difference]: With dead ends: 14563 [2022-02-09 00:29:38,475 INFO L226 Difference]: Without dead ends: 14416 [2022-02-09 00:29:38,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2022-02-09 00:29:38,475 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 488 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2773 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:38,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2773 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:38,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14416 states. [2022-02-09 00:29:38,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14416 to 13479. [2022-02-09 00:29:38,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13479 states, 13478 states have (on average 2.780011871197507) internal successors, (37469), 13478 states have internal predecessors, (37469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:38,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13479 states to 13479 states and 37469 transitions. [2022-02-09 00:29:38,708 INFO L78 Accepts]: Start accepts. Automaton has 13479 states and 37469 transitions. Word has length 227 [2022-02-09 00:29:38,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:38,708 INFO L470 AbstractCegarLoop]: Abstraction has 13479 states and 37469 transitions. [2022-02-09 00:29:38,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:38,708 INFO L276 IsEmpty]: Start isEmpty. Operand 13479 states and 37469 transitions. [2022-02-09 00:29:38,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:38,729 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:38,729 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:38,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-02-09 00:29:38,729 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:38,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:38,730 INFO L85 PathProgramCache]: Analyzing trace with hash 2126981933, now seen corresponding path program 33 times [2022-02-09 00:29:38,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:38,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956845569] [2022-02-09 00:29:38,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:38,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:38,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:38,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956845569] [2022-02-09 00:29:38,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956845569] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:38,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:38,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:38,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814668092] [2022-02-09 00:29:38,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:38,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:38,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:38,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:38,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:38,819 INFO L87 Difference]: Start difference. First operand 13479 states and 37469 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:39,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:39,134 INFO L93 Difference]: Finished difference Result 14413 states and 39674 transitions. [2022-02-09 00:29:39,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 00:29:39,134 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:39,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:39,216 INFO L225 Difference]: With dead ends: 14413 [2022-02-09 00:29:39,217 INFO L226 Difference]: Without dead ends: 13986 [2022-02-09 00:29:39,217 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-02-09 00:29:39,217 INFO L933 BasicCegarLoop]: 329 mSDtfsCounter, 465 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:39,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [465 Valid, 2542 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13986 states. [2022-02-09 00:29:39,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13986 to 13223. [2022-02-09 00:29:39,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13223 states, 13222 states have (on average 2.780592951142036) internal successors, (36765), 13222 states have internal predecessors, (36765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:39,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13223 states to 13223 states and 36765 transitions. [2022-02-09 00:29:39,459 INFO L78 Accepts]: Start accepts. Automaton has 13223 states and 36765 transitions. Word has length 227 [2022-02-09 00:29:39,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:39,460 INFO L470 AbstractCegarLoop]: Abstraction has 13223 states and 36765 transitions. [2022-02-09 00:29:39,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:39,460 INFO L276 IsEmpty]: Start isEmpty. Operand 13223 states and 36765 transitions. [2022-02-09 00:29:39,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:39,481 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:39,481 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:39,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-02-09 00:29:39,481 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:39,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1597277199, now seen corresponding path program 34 times [2022-02-09 00:29:39,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:39,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510437487] [2022-02-09 00:29:39,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:39,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:39,574 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:39,574 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:39,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510437487] [2022-02-09 00:29:39,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510437487] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:39,574 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:39,574 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:39,574 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051763723] [2022-02-09 00:29:39,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:39,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:39,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:39,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:39,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:39,575 INFO L87 Difference]: Start difference. First operand 13223 states and 36765 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:39,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:39,822 INFO L93 Difference]: Finished difference Result 14079 states and 38823 transitions. [2022-02-09 00:29:39,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 00:29:39,822 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:39,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:39,848 INFO L225 Difference]: With dead ends: 14079 [2022-02-09 00:29:39,848 INFO L226 Difference]: Without dead ends: 13888 [2022-02-09 00:29:39,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:39,848 INFO L933 BasicCegarLoop]: 352 mSDtfsCounter, 319 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 3142 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:39,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 3142 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:39,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13888 states. [2022-02-09 00:29:40,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13888 to 13191. [2022-02-09 00:29:40,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13191 states, 13190 states have (on average 2.7806671721000757) internal successors, (36677), 13190 states have internal predecessors, (36677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:40,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13191 states to 13191 states and 36677 transitions. [2022-02-09 00:29:40,073 INFO L78 Accepts]: Start accepts. Automaton has 13191 states and 36677 transitions. Word has length 227 [2022-02-09 00:29:40,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:40,074 INFO L470 AbstractCegarLoop]: Abstraction has 13191 states and 36677 transitions. [2022-02-09 00:29:40,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:40,074 INFO L276 IsEmpty]: Start isEmpty. Operand 13191 states and 36677 transitions. [2022-02-09 00:29:40,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:40,093 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:40,093 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:40,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-02-09 00:29:40,093 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:40,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:40,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1182713145, now seen corresponding path program 35 times [2022-02-09 00:29:40,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:40,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554955736] [2022-02-09 00:29:40,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:40,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:40,171 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:40,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:40,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554955736] [2022-02-09 00:29:40,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554955736] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:40,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:40,172 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:40,172 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095325599] [2022-02-09 00:29:40,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:40,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:40,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:40,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:40,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:40,173 INFO L87 Difference]: Start difference. First operand 13191 states and 36677 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:40,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:40,376 INFO L93 Difference]: Finished difference Result 13951 states and 38503 transitions. [2022-02-09 00:29:40,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:40,377 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:40,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:40,404 INFO L225 Difference]: With dead ends: 13951 [2022-02-09 00:29:40,404 INFO L226 Difference]: Without dead ends: 13736 [2022-02-09 00:29:40,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:29:40,405 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 360 mSDsluCounter, 2727 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:40,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 3045 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:40,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13736 states. [2022-02-09 00:29:40,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13736 to 12979. [2022-02-09 00:29:40,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12979 states, 12978 states have (on average 2.7743874248728617) internal successors, (36006), 12978 states have internal predecessors, (36006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12979 states to 12979 states and 36006 transitions. [2022-02-09 00:29:40,639 INFO L78 Accepts]: Start accepts. Automaton has 12979 states and 36006 transitions. Word has length 227 [2022-02-09 00:29:40,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:40,639 INFO L470 AbstractCegarLoop]: Abstraction has 12979 states and 36006 transitions. [2022-02-09 00:29:40,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 12979 states and 36006 transitions. [2022-02-09 00:29:40,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:40,660 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:40,660 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:40,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-02-09 00:29:40,660 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:40,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:40,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1918630919, now seen corresponding path program 1 times [2022-02-09 00:29:40,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:40,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360728534] [2022-02-09 00:29:40,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:40,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:40,776 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:40,777 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:40,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360728534] [2022-02-09 00:29:40,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360728534] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:40,777 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:40,777 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:40,777 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115840042] [2022-02-09 00:29:40,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:40,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:40,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:40,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:40,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:40,778 INFO L87 Difference]: Start difference. First operand 12979 states and 36006 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:41,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:41,168 INFO L93 Difference]: Finished difference Result 16694 states and 45764 transitions. [2022-02-09 00:29:41,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 00:29:41,169 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:41,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:41,199 INFO L225 Difference]: With dead ends: 16694 [2022-02-09 00:29:41,199 INFO L226 Difference]: Without dead ends: 16547 [2022-02-09 00:29:41,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-02-09 00:29:41,200 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 363 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 3302 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:41,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 3302 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:41,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16547 states. [2022-02-09 00:29:41,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16547 to 15795. [2022-02-09 00:29:41,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15795 states, 15794 states have (on average 2.762821324553628) internal successors, (43636), 15794 states have internal predecessors, (43636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:41,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15795 states to 15795 states and 43636 transitions. [2022-02-09 00:29:41,497 INFO L78 Accepts]: Start accepts. Automaton has 15795 states and 43636 transitions. Word has length 227 [2022-02-09 00:29:41,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:41,497 INFO L470 AbstractCegarLoop]: Abstraction has 15795 states and 43636 transitions. [2022-02-09 00:29:41,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:41,497 INFO L276 IsEmpty]: Start isEmpty. Operand 15795 states and 43636 transitions. [2022-02-09 00:29:41,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:41,520 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:41,520 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:41,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-02-09 00:29:41,521 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:41,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:41,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1287615631, now seen corresponding path program 2 times [2022-02-09 00:29:41,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:41,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742257671] [2022-02-09 00:29:41,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:41,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:41,614 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:41,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:41,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742257671] [2022-02-09 00:29:41,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742257671] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:41,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:41,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:41,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61979510] [2022-02-09 00:29:41,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:41,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:41,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:41,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:41,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:41,615 INFO L87 Difference]: Start difference. First operand 15795 states and 43636 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:41,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:41,925 INFO L93 Difference]: Finished difference Result 16558 states and 45380 transitions. [2022-02-09 00:29:41,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:29:41,926 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:41,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:41,956 INFO L225 Difference]: With dead ends: 16558 [2022-02-09 00:29:41,956 INFO L226 Difference]: Without dead ends: 16131 [2022-02-09 00:29:41,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2022-02-09 00:29:41,956 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 362 mSDsluCounter, 2746 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 3051 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:41,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 3051 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:41,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16131 states. [2022-02-09 00:29:42,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16131 to 15539. [2022-02-09 00:29:42,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15539 states, 15538 states have (on average 2.7630325653237224) internal successors, (42932), 15538 states have internal predecessors, (42932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15539 states to 15539 states and 42932 transitions. [2022-02-09 00:29:42,223 INFO L78 Accepts]: Start accepts. Automaton has 15539 states and 42932 transitions. Word has length 227 [2022-02-09 00:29:42,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:42,223 INFO L470 AbstractCegarLoop]: Abstraction has 15539 states and 42932 transitions. [2022-02-09 00:29:42,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 15539 states and 42932 transitions. [2022-02-09 00:29:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:42,248 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:42,248 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:42,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-02-09 00:29:42,248 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:42,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:42,248 INFO L85 PathProgramCache]: Analyzing trace with hash -594416329, now seen corresponding path program 3 times [2022-02-09 00:29:42,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:42,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098260805] [2022-02-09 00:29:42,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:42,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:42,347 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:42,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:42,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098260805] [2022-02-09 00:29:42,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098260805] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:42,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:42,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:42,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801195577] [2022-02-09 00:29:42,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:42,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:42,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:42,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:42,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:42,348 INFO L87 Difference]: Start difference. First operand 15539 states and 42932 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:42,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:42,631 INFO L93 Difference]: Finished difference Result 16188 states and 44437 transitions. [2022-02-09 00:29:42,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 00:29:42,631 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:42,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:42,660 INFO L225 Difference]: With dead ends: 16188 [2022-02-09 00:29:42,661 INFO L226 Difference]: Without dead ends: 15970 [2022-02-09 00:29:42,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:42,661 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 280 mSDsluCounter, 2998 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 3296 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:42,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 3296 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:42,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15970 states. [2022-02-09 00:29:42,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15970 to 15507. [2022-02-09 00:29:42,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15507 states, 15506 states have (on average 2.7630594608538632) internal successors, (42844), 15506 states have internal predecessors, (42844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:42,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15507 states to 15507 states and 42844 transitions. [2022-02-09 00:29:42,923 INFO L78 Accepts]: Start accepts. Automaton has 15507 states and 42844 transitions. Word has length 227 [2022-02-09 00:29:42,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:42,923 INFO L470 AbstractCegarLoop]: Abstraction has 15507 states and 42844 transitions. [2022-02-09 00:29:42,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:42,924 INFO L276 IsEmpty]: Start isEmpty. Operand 15507 states and 42844 transitions. [2022-02-09 00:29:43,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:43,002 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:43,002 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:43,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-02-09 00:29:43,002 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:43,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:43,002 INFO L85 PathProgramCache]: Analyzing trace with hash -927845791, now seen corresponding path program 4 times [2022-02-09 00:29:43,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:43,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893086407] [2022-02-09 00:29:43,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:43,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:43,088 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:43,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:43,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893086407] [2022-02-09 00:29:43,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893086407] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:43,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:43,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:43,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949299373] [2022-02-09 00:29:43,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:43,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:43,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:43,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:43,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:43,089 INFO L87 Difference]: Start difference. First operand 15507 states and 42844 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:43,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:43,320 INFO L93 Difference]: Finished difference Result 16096 states and 44209 transitions. [2022-02-09 00:29:43,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:43,320 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:43,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:43,350 INFO L225 Difference]: With dead ends: 16096 [2022-02-09 00:29:43,350 INFO L226 Difference]: Without dead ends: 15863 [2022-02-09 00:29:43,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:29:43,350 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 313 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:43,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 3190 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:43,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15863 states. [2022-02-09 00:29:43,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15863 to 15460. [2022-02-09 00:29:43,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15460 states, 15459 states have (on average 2.762274403260237) internal successors, (42702), 15459 states have internal predecessors, (42702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:43,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 42702 transitions. [2022-02-09 00:29:43,610 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 42702 transitions. Word has length 227 [2022-02-09 00:29:43,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:43,610 INFO L470 AbstractCegarLoop]: Abstraction has 15460 states and 42702 transitions. [2022-02-09 00:29:43,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:43,611 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 42702 transitions. [2022-02-09 00:29:43,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:43,635 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:43,635 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:43,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-02-09 00:29:43,635 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:43,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:43,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1157381049, now seen corresponding path program 5 times [2022-02-09 00:29:43,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:43,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004908631] [2022-02-09 00:29:43,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:43,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:43,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:43,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004908631] [2022-02-09 00:29:43,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004908631] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:43,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:43,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:43,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176912737] [2022-02-09 00:29:43,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:43,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:43,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:43,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:43,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:43,753 INFO L87 Difference]: Start difference. First operand 15460 states and 42702 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:44,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:44,084 INFO L93 Difference]: Finished difference Result 16353 states and 44929 transitions. [2022-02-09 00:29:44,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 00:29:44,084 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:44,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:44,114 INFO L225 Difference]: With dead ends: 16353 [2022-02-09 00:29:44,114 INFO L226 Difference]: Without dead ends: 16206 [2022-02-09 00:29:44,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2022-02-09 00:29:44,115 INFO L933 BasicCegarLoop]: 336 mSDtfsCounter, 242 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:44,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 3013 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:44,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16206 states. [2022-02-09 00:29:44,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16206 to 15752. [2022-02-09 00:29:44,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.7600152371278015) internal successors, (43473), 15751 states have internal predecessors, (43473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:44,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43473 transitions. [2022-02-09 00:29:44,372 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43473 transitions. Word has length 227 [2022-02-09 00:29:44,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:44,373 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43473 transitions. [2022-02-09 00:29:44,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:44,373 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43473 transitions. [2022-02-09 00:29:44,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:44,396 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:44,397 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:44,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-02-09 00:29:44,397 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:44,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:44,397 INFO L85 PathProgramCache]: Analyzing trace with hash 68660303, now seen corresponding path program 6 times [2022-02-09 00:29:44,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:44,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734189909] [2022-02-09 00:29:44,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:44,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:44,494 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:44,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:44,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734189909] [2022-02-09 00:29:44,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734189909] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:44,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:44,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:44,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528110901] [2022-02-09 00:29:44,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:44,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:44,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:44,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:44,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:44,496 INFO L87 Difference]: Start difference. First operand 15752 states and 43473 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:44,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:44,835 INFO L93 Difference]: Finished difference Result 16377 states and 44945 transitions. [2022-02-09 00:29:44,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:44,836 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:44,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:44,865 INFO L225 Difference]: With dead ends: 16377 [2022-02-09 00:29:44,866 INFO L226 Difference]: Without dead ends: 15950 [2022-02-09 00:29:44,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2022-02-09 00:29:44,866 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 232 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:44,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [232 Valid, 2996 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:44,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15950 states. [2022-02-09 00:29:45,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15950 to 15496. [2022-02-09 00:29:45,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.760180703452727) internal successors, (42769), 15495 states have internal predecessors, (42769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42769 transitions. [2022-02-09 00:29:45,171 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42769 transitions. Word has length 227 [2022-02-09 00:29:45,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:45,172 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42769 transitions. [2022-02-09 00:29:45,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:45,172 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42769 transitions. [2022-02-09 00:29:45,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:45,196 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:45,196 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:45,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-02-09 00:29:45,196 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:45,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:45,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1813371657, now seen corresponding path program 7 times [2022-02-09 00:29:45,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:45,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795863661] [2022-02-09 00:29:45,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:45,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:45,287 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:45,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:45,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795863661] [2022-02-09 00:29:45,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795863661] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:45,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:45,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:45,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858801207] [2022-02-09 00:29:45,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:45,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:45,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:45,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:45,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:45,288 INFO L87 Difference]: Start difference. First operand 15496 states and 42769 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:45,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:45,532 INFO L93 Difference]: Finished difference Result 15947 states and 43862 transitions. [2022-02-09 00:29:45,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:45,533 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:45,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:45,564 INFO L225 Difference]: With dead ends: 15947 [2022-02-09 00:29:45,564 INFO L226 Difference]: Without dead ends: 15729 [2022-02-09 00:29:45,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2022-02-09 00:29:45,565 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 160 mSDsluCounter, 2664 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:45,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 2932 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:45,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15729 states. [2022-02-09 00:29:45,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15729 to 15464. [2022-02-09 00:29:45,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15464 states, 15463 states have (on average 2.762012546077734) internal successors, (42709), 15463 states have internal predecessors, (42709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:45,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15464 states to 15464 states and 42709 transitions. [2022-02-09 00:29:45,822 INFO L78 Accepts]: Start accepts. Automaton has 15464 states and 42709 transitions. Word has length 227 [2022-02-09 00:29:45,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:45,822 INFO L470 AbstractCegarLoop]: Abstraction has 15464 states and 42709 transitions. [2022-02-09 00:29:45,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:45,823 INFO L276 IsEmpty]: Start isEmpty. Operand 15464 states and 42709 transitions. [2022-02-09 00:29:45,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:45,846 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:45,846 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:45,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-02-09 00:29:45,846 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:45,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:45,846 INFO L85 PathProgramCache]: Analyzing trace with hash 36395847, now seen corresponding path program 8 times [2022-02-09 00:29:45,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:45,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743197867] [2022-02-09 00:29:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:45,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:45,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:45,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743197867] [2022-02-09 00:29:45,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743197867] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:45,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:45,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:45,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957104702] [2022-02-09 00:29:45,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:45,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:45,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:45,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:45,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:45,945 INFO L87 Difference]: Start difference. First operand 15464 states and 42709 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:46,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:46,244 INFO L93 Difference]: Finished difference Result 16347 states and 44848 transitions. [2022-02-09 00:29:46,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 00:29:46,244 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:46,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:46,274 INFO L225 Difference]: With dead ends: 16347 [2022-02-09 00:29:46,274 INFO L226 Difference]: Without dead ends: 16200 [2022-02-09 00:29:46,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-02-09 00:29:46,275 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 230 mSDsluCounter, 2389 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:46,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2666 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:46,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16200 states. [2022-02-09 00:29:46,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16200 to 15752. [2022-02-09 00:29:46,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.759761284997778) internal successors, (43469), 15751 states have internal predecessors, (43469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:46,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43469 transitions. [2022-02-09 00:29:46,550 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43469 transitions. Word has length 227 [2022-02-09 00:29:46,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:46,551 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43469 transitions. [2022-02-09 00:29:46,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:46,551 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43469 transitions. [2022-02-09 00:29:46,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:46,575 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:46,575 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:46,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-02-09 00:29:46,575 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:46,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:46,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1052324899, now seen corresponding path program 9 times [2022-02-09 00:29:46,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:46,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127610941] [2022-02-09 00:29:46,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:46,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:46,676 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:46,676 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:46,676 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127610941] [2022-02-09 00:29:46,676 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127610941] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:46,676 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:46,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:46,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076651304] [2022-02-09 00:29:46,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:46,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:46,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:46,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:46,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:46,677 INFO L87 Difference]: Start difference. First operand 15752 states and 43469 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:46,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:46,955 INFO L93 Difference]: Finished difference Result 16197 states and 44485 transitions. [2022-02-09 00:29:46,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 00:29:46,956 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:46,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:46,985 INFO L225 Difference]: With dead ends: 16197 [2022-02-09 00:29:46,986 INFO L226 Difference]: Without dead ends: 15770 [2022-02-09 00:29:46,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:46,986 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 200 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:46,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2910 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:47,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15770 states. [2022-02-09 00:29:47,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15770 to 15496. [2022-02-09 00:29:47,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.7599225556631173) internal successors, (42765), 15495 states have internal predecessors, (42765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:47,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42765 transitions. [2022-02-09 00:29:47,325 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42765 transitions. Word has length 227 [2022-02-09 00:29:47,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:47,326 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42765 transitions. [2022-02-09 00:29:47,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:47,326 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42765 transitions. [2022-02-09 00:29:47,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:47,350 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:47,351 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:47,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-02-09 00:29:47,351 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:47,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:47,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1582029633, now seen corresponding path program 10 times [2022-02-09 00:29:47,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:47,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961391059] [2022-02-09 00:29:47,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:47,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:47,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:47,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961391059] [2022-02-09 00:29:47,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961391059] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:47,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:47,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:47,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102333135] [2022-02-09 00:29:47,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:47,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:47,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:47,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:47,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:47,455 INFO L87 Difference]: Start difference. First operand 15496 states and 42765 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:47,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:47,685 INFO L93 Difference]: Finished difference Result 15767 states and 43402 transitions. [2022-02-09 00:29:47,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:47,685 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:47,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:47,715 INFO L225 Difference]: With dead ends: 15767 [2022-02-09 00:29:47,715 INFO L226 Difference]: Without dead ends: 15568 [2022-02-09 00:29:47,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:29:47,715 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 149 mSDsluCounter, 2040 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:47,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 2310 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:47,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15568 states. [2022-02-09 00:29:47,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15568 to 15456. [2022-02-09 00:29:47,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15456 states, 15455 states have (on average 2.7620187641539955) internal successors, (42687), 15455 states have internal predecessors, (42687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:47,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15456 states to 15456 states and 42687 transitions. [2022-02-09 00:29:47,978 INFO L78 Accepts]: Start accepts. Automaton has 15456 states and 42687 transitions. Word has length 227 [2022-02-09 00:29:47,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:47,978 INFO L470 AbstractCegarLoop]: Abstraction has 15456 states and 42687 transitions. [2022-02-09 00:29:47,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:47,978 INFO L276 IsEmpty]: Start isEmpty. Operand 15456 states and 42687 transitions. [2022-02-09 00:29:48,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:48,005 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:48,005 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:48,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-02-09 00:29:48,005 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:48,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:48,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1902779655, now seen corresponding path program 11 times [2022-02-09 00:29:48,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:48,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208762969] [2022-02-09 00:29:48,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:48,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:48,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:48,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208762969] [2022-02-09 00:29:48,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208762969] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:48,114 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:48,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:48,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306189914] [2022-02-09 00:29:48,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:48,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:48,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:48,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:48,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:48,115 INFO L87 Difference]: Start difference. First operand 15456 states and 42687 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:48,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:48,425 INFO L93 Difference]: Finished difference Result 16365 states and 44958 transitions. [2022-02-09 00:29:48,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 00:29:48,425 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:48,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:48,457 INFO L225 Difference]: With dead ends: 16365 [2022-02-09 00:29:48,457 INFO L226 Difference]: Without dead ends: 16218 [2022-02-09 00:29:48,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:29:48,457 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 197 mSDsluCounter, 2466 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:48,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 2711 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:48,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16218 states. [2022-02-09 00:29:48,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16218 to 15752. [2022-02-09 00:29:48,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.759761284997778) internal successors, (43469), 15751 states have internal predecessors, (43469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:48,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43469 transitions. [2022-02-09 00:29:48,724 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43469 transitions. Word has length 227 [2022-02-09 00:29:48,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:48,724 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43469 transitions. [2022-02-09 00:29:48,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:48,724 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43469 transitions. [2022-02-09 00:29:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:48,749 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:48,749 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:48,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-02-09 00:29:48,749 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:48,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:48,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1303466895, now seen corresponding path program 12 times [2022-02-09 00:29:48,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:48,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932120537] [2022-02-09 00:29:48,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:48,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:48,849 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:48,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:48,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932120537] [2022-02-09 00:29:48,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932120537] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:48,850 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:48,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:48,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798753182] [2022-02-09 00:29:48,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:48,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:48,850 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:48,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:48,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:48,850 INFO L87 Difference]: Start difference. First operand 15752 states and 43469 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:49,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:49,134 INFO L93 Difference]: Finished difference Result 16389 states and 44974 transitions. [2022-02-09 00:29:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 00:29:49,135 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:49,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:49,164 INFO L225 Difference]: With dead ends: 16389 [2022-02-09 00:29:49,165 INFO L226 Difference]: Without dead ends: 15962 [2022-02-09 00:29:49,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:29:49,165 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 196 mSDsluCounter, 2234 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:49,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2484 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:49,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15962 states. [2022-02-09 00:29:49,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15962 to 15496. [2022-02-09 00:29:49,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.7599225556631173) internal successors, (42765), 15495 states have internal predecessors, (42765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:49,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42765 transitions. [2022-02-09 00:29:49,474 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42765 transitions. Word has length 227 [2022-02-09 00:29:49,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:49,475 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42765 transitions. [2022-02-09 00:29:49,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:49,475 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42765 transitions. [2022-02-09 00:29:49,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:49,500 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:49,500 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:49,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-02-09 00:29:49,500 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:49,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:49,501 INFO L85 PathProgramCache]: Analyzing trace with hash -578565065, now seen corresponding path program 13 times [2022-02-09 00:29:49,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:49,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695771727] [2022-02-09 00:29:49,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:49,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:49,596 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:49,596 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:49,596 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695771727] [2022-02-09 00:29:49,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695771727] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:49,596 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:49,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:49,596 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278777955] [2022-02-09 00:29:49,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:49,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:49,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:49,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:49,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:49,597 INFO L87 Difference]: Start difference. First operand 15496 states and 42765 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:49,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:49,828 INFO L93 Difference]: Finished difference Result 15959 states and 43891 transitions. [2022-02-09 00:29:49,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:49,829 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:49,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:49,859 INFO L225 Difference]: With dead ends: 15959 [2022-02-09 00:29:49,859 INFO L226 Difference]: Without dead ends: 15741 [2022-02-09 00:29:49,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:49,859 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 127 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:49,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 2417 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:49,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15741 states. [2022-02-09 00:29:50,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15741 to 15464. [2022-02-09 00:29:50,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15464 states, 15463 states have (on average 2.761753864062601) internal successors, (42705), 15463 states have internal predecessors, (42705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:50,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15464 states to 15464 states and 42705 transitions. [2022-02-09 00:29:50,126 INFO L78 Accepts]: Start accepts. Automaton has 15464 states and 42705 transitions. Word has length 227 [2022-02-09 00:29:50,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:50,126 INFO L470 AbstractCegarLoop]: Abstraction has 15464 states and 42705 transitions. [2022-02-09 00:29:50,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 15464 states and 42705 transitions. [2022-02-09 00:29:50,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:50,149 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:50,149 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:50,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-02-09 00:29:50,149 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:50,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:50,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1271202439, now seen corresponding path program 14 times [2022-02-09 00:29:50,150 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:50,150 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753666823] [2022-02-09 00:29:50,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:50,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:50,249 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:50,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:50,249 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753666823] [2022-02-09 00:29:50,249 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753666823] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:50,249 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:50,249 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:50,249 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563726627] [2022-02-09 00:29:50,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:50,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:50,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:50,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:50,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:50,250 INFO L87 Difference]: Start difference. First operand 15464 states and 42705 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:50,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:50,561 INFO L93 Difference]: Finished difference Result 16443 states and 45108 transitions. [2022-02-09 00:29:50,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 00:29:50,562 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:50,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:50,593 INFO L225 Difference]: With dead ends: 16443 [2022-02-09 00:29:50,593 INFO L226 Difference]: Without dead ends: 16296 [2022-02-09 00:29:50,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-02-09 00:29:50,593 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 209 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2677 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:50,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 2677 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2022-02-09 00:29:50,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 15752. [2022-02-09 00:29:50,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15752 states, 15751 states have (on average 2.7595073328677544) internal successors, (43465), 15751 states have internal predecessors, (43465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:50,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15752 states to 15752 states and 43465 transitions. [2022-02-09 00:29:50,859 INFO L78 Accepts]: Start accepts. Automaton has 15752 states and 43465 transitions. Word has length 227 [2022-02-09 00:29:50,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:50,859 INFO L470 AbstractCegarLoop]: Abstraction has 15752 states and 43465 transitions. [2022-02-09 00:29:50,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:50,859 INFO L276 IsEmpty]: Start isEmpty. Operand 15752 states and 43465 transitions. [2022-02-09 00:29:50,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:50,884 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:50,884 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:50,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-02-09 00:29:50,885 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:50,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:50,885 INFO L85 PathProgramCache]: Analyzing trace with hash 182481693, now seen corresponding path program 15 times [2022-02-09 00:29:50,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:50,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072065622] [2022-02-09 00:29:50,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:50,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:50,982 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:50,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:50,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072065622] [2022-02-09 00:29:50,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072065622] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:50,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:50,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:50,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121884773] [2022-02-09 00:29:50,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:50,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:50,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:50,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:50,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:50,983 INFO L87 Difference]: Start difference. First operand 15752 states and 43465 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:51,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:51,244 INFO L93 Difference]: Finished difference Result 16293 states and 44745 transitions. [2022-02-09 00:29:51,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 00:29:51,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:51,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:51,275 INFO L225 Difference]: With dead ends: 16293 [2022-02-09 00:29:51,275 INFO L226 Difference]: Without dead ends: 15866 [2022-02-09 00:29:51,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:51,275 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 182 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:51,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 2476 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:51,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15866 states. [2022-02-09 00:29:51,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15866 to 15496. [2022-02-09 00:29:51,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15496 states, 15495 states have (on average 2.7596644078735078) internal successors, (42761), 15495 states have internal predecessors, (42761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:51,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15496 states to 15496 states and 42761 transitions. [2022-02-09 00:29:51,621 INFO L78 Accepts]: Start accepts. Automaton has 15496 states and 42761 transitions. Word has length 227 [2022-02-09 00:29:51,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:51,621 INFO L470 AbstractCegarLoop]: Abstraction has 15496 states and 42761 transitions. [2022-02-09 00:29:51,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:51,621 INFO L276 IsEmpty]: Start isEmpty. Operand 15496 states and 42761 transitions. [2022-02-09 00:29:51,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:51,645 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:51,645 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:51,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-02-09 00:29:51,645 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:51,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:51,645 INFO L85 PathProgramCache]: Analyzing trace with hash -347223041, now seen corresponding path program 16 times [2022-02-09 00:29:51,646 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:51,646 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088911630] [2022-02-09 00:29:51,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:51,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:51,754 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:51,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:51,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088911630] [2022-02-09 00:29:51,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088911630] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:51,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:51,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:51,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305215138] [2022-02-09 00:29:51,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:51,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:51,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:51,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:51,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:51,755 INFO L87 Difference]: Start difference. First operand 15496 states and 42761 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:51,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:51,986 INFO L93 Difference]: Finished difference Result 15863 states and 43662 transitions. [2022-02-09 00:29:51,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:51,987 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:51,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:52,016 INFO L225 Difference]: With dead ends: 15863 [2022-02-09 00:29:52,017 INFO L226 Difference]: Without dead ends: 15668 [2022-02-09 00:29:52,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-02-09 00:29:52,017 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 114 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2398 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:52,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2398 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:52,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15668 states. [2022-02-09 00:29:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15668 to 15460. [2022-02-09 00:29:52,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15460 states, 15459 states have (on average 2.761756905362572) internal successors, (42694), 15459 states have internal predecessors, (42694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:52,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15460 states to 15460 states and 42694 transitions. [2022-02-09 00:29:52,276 INFO L78 Accepts]: Start accepts. Automaton has 15460 states and 42694 transitions. Word has length 227 [2022-02-09 00:29:52,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:52,276 INFO L470 AbstractCegarLoop]: Abstraction has 15460 states and 42694 transitions. [2022-02-09 00:29:52,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:52,276 INFO L276 IsEmpty]: Start isEmpty. Operand 15460 states and 42694 transitions. [2022-02-09 00:29:52,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:52,300 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:52,300 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:52,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-02-09 00:29:52,300 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:52,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:52,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1496021797, now seen corresponding path program 17 times [2022-02-09 00:29:52,301 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:52,301 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922614734] [2022-02-09 00:29:52,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:52,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:52,401 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:52,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:52,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922614734] [2022-02-09 00:29:52,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922614734] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:52,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:52,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:52,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027038767] [2022-02-09 00:29:52,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:52,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:52,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:52,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:52,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:52,402 INFO L87 Difference]: Start difference. First operand 15460 states and 42694 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:52,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:52,700 INFO L93 Difference]: Finished difference Result 16387 states and 44950 transitions. [2022-02-09 00:29:52,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:29:52,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:52,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:52,729 INFO L225 Difference]: With dead ends: 16387 [2022-02-09 00:29:52,729 INFO L226 Difference]: Without dead ends: 16240 [2022-02-09 00:29:52,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2022-02-09 00:29:52,730 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 229 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 2239 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:52,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 2239 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:52,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16240 states. [2022-02-09 00:29:52,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16240 to 15780. [2022-02-09 00:29:52,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15780 states, 15779 states have (on average 2.759490462006464) internal successors, (43542), 15779 states have internal predecessors, (43542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:52,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15780 states to 15780 states and 43542 transitions. [2022-02-09 00:29:52,997 INFO L78 Accepts]: Start accepts. Automaton has 15780 states and 43542 transitions. Word has length 227 [2022-02-09 00:29:52,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:52,997 INFO L470 AbstractCegarLoop]: Abstraction has 15780 states and 43542 transitions. [2022-02-09 00:29:52,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:52,998 INFO L276 IsEmpty]: Start isEmpty. Operand 15780 states and 43542 transitions. [2022-02-09 00:29:53,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:53,020 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:53,020 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:53,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-02-09 00:29:53,021 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:53,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:53,021 INFO L85 PathProgramCache]: Analyzing trace with hash 407301051, now seen corresponding path program 18 times [2022-02-09 00:29:53,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:53,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052488103] [2022-02-09 00:29:53,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:53,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:53,120 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:53,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:53,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052488103] [2022-02-09 00:29:53,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052488103] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:53,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:53,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:53,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373658860] [2022-02-09 00:29:53,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:53,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:53,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:53,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:53,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:53,121 INFO L87 Difference]: Start difference. First operand 15780 states and 43542 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:53,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:53,373 INFO L93 Difference]: Finished difference Result 16237 states and 44587 transitions. [2022-02-09 00:29:53,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 00:29:53,374 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:53,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:53,402 INFO L225 Difference]: With dead ends: 16237 [2022-02-09 00:29:53,402 INFO L226 Difference]: Without dead ends: 15810 [2022-02-09 00:29:53,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:53,403 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 199 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:53,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 2233 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:53,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15810 states. [2022-02-09 00:29:53,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15810 to 15524. [2022-02-09 00:29:53,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15524 states, 15523 states have (on average 2.7596469754557753) internal successors, (42838), 15523 states have internal predecessors, (42838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:53,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15524 states to 15524 states and 42838 transitions. [2022-02-09 00:29:53,664 INFO L78 Accepts]: Start accepts. Automaton has 15524 states and 42838 transitions. Word has length 227 [2022-02-09 00:29:53,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:53,665 INFO L470 AbstractCegarLoop]: Abstraction has 15524 states and 42838 transitions. [2022-02-09 00:29:53,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:53,665 INFO L276 IsEmpty]: Start isEmpty. Operand 15524 states and 42838 transitions. [2022-02-09 00:29:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:53,730 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:53,731 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:53,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-02-09 00:29:53,731 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:53,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:53,731 INFO L85 PathProgramCache]: Analyzing trace with hash -122403683, now seen corresponding path program 19 times [2022-02-09 00:29:53,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:53,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197009488] [2022-02-09 00:29:53,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:53,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:53,838 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:53,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:53,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197009488] [2022-02-09 00:29:53,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197009488] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:53,838 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:53,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:53,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870463376] [2022-02-09 00:29:53,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:53,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:53,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:53,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:53,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:53,839 INFO L87 Difference]: Start difference. First operand 15524 states and 42838 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:54,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:54,056 INFO L93 Difference]: Finished difference Result 15891 states and 43707 transitions. [2022-02-09 00:29:54,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 00:29:54,056 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:54,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:54,086 INFO L225 Difference]: With dead ends: 15891 [2022-02-09 00:29:54,086 INFO L226 Difference]: Without dead ends: 15700 [2022-02-09 00:29:54,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2022-02-09 00:29:54,086 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 139 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:54,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 2145 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:54,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15700 states. [2022-02-09 00:29:54,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15700 to 15492. [2022-02-09 00:29:54,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15492 states, 15491 states have (on average 2.759666903363243) internal successors, (42750), 15491 states have internal predecessors, (42750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:54,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15492 states to 15492 states and 42750 transitions. [2022-02-09 00:29:54,339 INFO L78 Accepts]: Start accepts. Automaton has 15492 states and 42750 transitions. Word has length 227 [2022-02-09 00:29:54,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:54,340 INFO L470 AbstractCegarLoop]: Abstraction has 15492 states and 42750 transitions. [2022-02-09 00:29:54,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand 15492 states and 42750 transitions. [2022-02-09 00:29:54,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:54,362 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:54,362 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:54,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-02-09 00:29:54,362 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:54,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:54,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1310251565, now seen corresponding path program 20 times [2022-02-09 00:29:54,363 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:54,363 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538451924] [2022-02-09 00:29:54,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:54,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:54,484 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:54,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:54,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538451924] [2022-02-09 00:29:54,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538451924] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:54,484 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:54,484 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:54,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510924090] [2022-02-09 00:29:54,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:54,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:54,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:54,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:54,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:54,485 INFO L87 Difference]: Start difference. First operand 15492 states and 42750 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:54,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:54,689 INFO L93 Difference]: Finished difference Result 15775 states and 43416 transitions. [2022-02-09 00:29:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:54,689 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:54,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:54,717 INFO L225 Difference]: With dead ends: 15775 [2022-02-09 00:29:54,717 INFO L226 Difference]: Without dead ends: 15564 [2022-02-09 00:29:54,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:54,718 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 119 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:54,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 1904 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:54,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15564 states. [2022-02-09 00:29:54,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15564 to 15452. [2022-02-09 00:29:54,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15452 states, 15451 states have (on average 2.7617629926865574) internal successors, (42672), 15451 states have internal predecessors, (42672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:54,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15452 states to 15452 states and 42672 transitions. [2022-02-09 00:29:54,965 INFO L78 Accepts]: Start accepts. Automaton has 15452 states and 42672 transitions. Word has length 227 [2022-02-09 00:29:54,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:54,965 INFO L470 AbstractCegarLoop]: Abstraction has 15452 states and 42672 transitions. [2022-02-09 00:29:54,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:54,966 INFO L276 IsEmpty]: Start isEmpty. Operand 15452 states and 42672 transitions. [2022-02-09 00:29:54,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:54,988 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:54,988 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:54,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-02-09 00:29:54,988 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:54,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash 521564985, now seen corresponding path program 21 times [2022-02-09 00:29:54,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:54,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300975443] [2022-02-09 00:29:54,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:54,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:55,094 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:55,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:55,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300975443] [2022-02-09 00:29:55,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300975443] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:55,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:55,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:55,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116131722] [2022-02-09 00:29:55,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:55,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:55,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:55,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:55,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:55,095 INFO L87 Difference]: Start difference. First operand 15452 states and 42672 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:55,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:55,353 INFO L93 Difference]: Finished difference Result 16029 states and 44083 transitions. [2022-02-09 00:29:55,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 00:29:55,353 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:55,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:55,382 INFO L225 Difference]: With dead ends: 16029 [2022-02-09 00:29:55,383 INFO L226 Difference]: Without dead ends: 15882 [2022-02-09 00:29:55,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:29:55,383 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 208 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:55,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 2141 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:55,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15882 states. [2022-02-09 00:29:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15882 to 15693. [2022-02-09 00:29:55,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15693 states, 15692 states have (on average 2.759941371399439) internal successors, (43309), 15692 states have internal predecessors, (43309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:55,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15693 states to 15693 states and 43309 transitions. [2022-02-09 00:29:55,632 INFO L78 Accepts]: Start accepts. Automaton has 15693 states and 43309 transitions. Word has length 227 [2022-02-09 00:29:55,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:55,633 INFO L470 AbstractCegarLoop]: Abstraction has 15693 states and 43309 transitions. [2022-02-09 00:29:55,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:55,633 INFO L276 IsEmpty]: Start isEmpty. Operand 15693 states and 43309 transitions. [2022-02-09 00:29:55,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:55,656 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:55,656 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:55,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-02-09 00:29:55,656 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:55,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:55,656 INFO L85 PathProgramCache]: Analyzing trace with hash -567155761, now seen corresponding path program 22 times [2022-02-09 00:29:55,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:55,656 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804232967] [2022-02-09 00:29:55,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:55,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:55,751 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:55,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:55,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804232967] [2022-02-09 00:29:55,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804232967] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:55,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:55,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:55,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737515303] [2022-02-09 00:29:55,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:55,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:55,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:55,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:55,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:55,752 INFO L87 Difference]: Start difference. First operand 15693 states and 43309 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:56,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:56,056 INFO L93 Difference]: Finished difference Result 16053 states and 44099 transitions. [2022-02-09 00:29:56,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 00:29:56,057 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:56,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:56,082 INFO L225 Difference]: With dead ends: 16053 [2022-02-09 00:29:56,082 INFO L226 Difference]: Without dead ends: 15626 [2022-02-09 00:29:56,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:56,082 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 210 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:56,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 2134 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:56,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15626 states. [2022-02-09 00:29:56,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15626 to 15437. [2022-02-09 00:29:56,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15437 states, 15436 states have (on average 2.760106245141228) internal successors, (42605), 15436 states have internal predecessors, (42605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:56,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 42605 transitions. [2022-02-09 00:29:56,314 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 42605 transitions. Word has length 227 [2022-02-09 00:29:56,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:56,314 INFO L470 AbstractCegarLoop]: Abstraction has 15437 states and 42605 transitions. [2022-02-09 00:29:56,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:56,314 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 42605 transitions. [2022-02-09 00:29:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:56,340 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:56,341 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:56,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-02-09 00:29:56,341 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:56,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:56,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1845779575, now seen corresponding path program 23 times [2022-02-09 00:29:56,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:56,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440288652] [2022-02-09 00:29:56,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:56,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:56,436 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:56,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:56,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440288652] [2022-02-09 00:29:56,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440288652] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:56,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:56,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:56,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402604877] [2022-02-09 00:29:56,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:56,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:56,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:56,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:56,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:56,438 INFO L87 Difference]: Start difference. First operand 15437 states and 42605 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:56,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:56,634 INFO L93 Difference]: Finished difference Result 15623 states and 43016 transitions. [2022-02-09 00:29:56,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:29:56,634 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:56,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:56,664 INFO L225 Difference]: With dead ends: 15623 [2022-02-09 00:29:56,664 INFO L226 Difference]: Without dead ends: 15405 [2022-02-09 00:29:56,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:29:56,664 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 150 mSDsluCounter, 1465 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:56,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 1697 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:56,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15405 states. [2022-02-09 00:29:56,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15405 to 15405. [2022-02-09 00:29:56,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15405 states, 15404 states have (on average 2.7619449493638015) internal successors, (42545), 15404 states have internal predecessors, (42545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:56,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15405 states to 15405 states and 42545 transitions. [2022-02-09 00:29:56,910 INFO L78 Accepts]: Start accepts. Automaton has 15405 states and 42545 transitions. Word has length 227 [2022-02-09 00:29:56,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:56,910 INFO L470 AbstractCegarLoop]: Abstraction has 15405 states and 42545 transitions. [2022-02-09 00:29:56,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:56,911 INFO L276 IsEmpty]: Start isEmpty. Operand 15405 states and 42545 transitions. [2022-02-09 00:29:56,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:56,932 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:56,933 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:56,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-02-09 00:29:56,933 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:56,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:56,933 INFO L85 PathProgramCache]: Analyzing trace with hash -599420217, now seen corresponding path program 24 times [2022-02-09 00:29:56,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:56,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330496590] [2022-02-09 00:29:56,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:56,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:57,035 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:57,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:57,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330496590] [2022-02-09 00:29:57,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330496590] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:57,035 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:57,035 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:57,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860834137] [2022-02-09 00:29:57,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:57,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:57,036 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:57,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:57,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:57,036 INFO L87 Difference]: Start difference. First operand 15405 states and 42545 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:57,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:57,331 INFO L93 Difference]: Finished difference Result 16176 states and 44404 transitions. [2022-02-09 00:29:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 00:29:57,331 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:57,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:57,359 INFO L225 Difference]: With dead ends: 16176 [2022-02-09 00:29:57,360 INFO L226 Difference]: Without dead ends: 16029 [2022-02-09 00:29:57,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:57,360 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 216 mSDsluCounter, 2397 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:57,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 2634 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:57,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16029 states. [2022-02-09 00:29:57,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16029 to 15693. [2022-02-09 00:29:57,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15693 states, 15692 states have (on average 2.7596864644404793) internal successors, (43305), 15692 states have internal predecessors, (43305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:57,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15693 states to 15693 states and 43305 transitions. [2022-02-09 00:29:57,614 INFO L78 Accepts]: Start accepts. Automaton has 15693 states and 43305 transitions. Word has length 227 [2022-02-09 00:29:57,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:57,615 INFO L470 AbstractCegarLoop]: Abstraction has 15693 states and 43305 transitions. [2022-02-09 00:29:57,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:57,615 INFO L276 IsEmpty]: Start isEmpty. Operand 15693 states and 43305 transitions. [2022-02-09 00:29:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:57,637 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:57,637 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:57,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-02-09 00:29:57,637 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:57,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:57,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1688140963, now seen corresponding path program 25 times [2022-02-09 00:29:57,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:57,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236162857] [2022-02-09 00:29:57,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:57,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:57,735 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:57,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:57,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236162857] [2022-02-09 00:29:57,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236162857] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:57,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:57,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:57,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893396920] [2022-02-09 00:29:57,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:57,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:57,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:57,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:57,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:57,737 INFO L87 Difference]: Start difference. First operand 15693 states and 43305 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:58,005 INFO L93 Difference]: Finished difference Result 16026 states and 44041 transitions. [2022-02-09 00:29:58,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 00:29:58,005 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:58,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:58,037 INFO L225 Difference]: With dead ends: 16026 [2022-02-09 00:29:58,037 INFO L226 Difference]: Without dead ends: 15599 [2022-02-09 00:29:58,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:29:58,037 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 200 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:58,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 2216 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:58,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15599 states. [2022-02-09 00:29:58,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15599 to 15437. [2022-02-09 00:29:58,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15437 states, 15436 states have (on average 2.7598471106504276) internal successors, (42601), 15436 states have internal predecessors, (42601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:58,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15437 states to 15437 states and 42601 transitions. [2022-02-09 00:29:58,343 INFO L78 Accepts]: Start accepts. Automaton has 15437 states and 42601 transitions. Word has length 227 [2022-02-09 00:29:58,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:58,343 INFO L470 AbstractCegarLoop]: Abstraction has 15437 states and 42601 transitions. [2022-02-09 00:29:58,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:58,343 INFO L276 IsEmpty]: Start isEmpty. Operand 15437 states and 42601 transitions. [2022-02-09 00:29:58,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:58,365 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:58,365 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:58,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-02-09 00:29:58,366 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:58,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:58,366 INFO L85 PathProgramCache]: Analyzing trace with hash 2077121599, now seen corresponding path program 26 times [2022-02-09 00:29:58,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:58,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8221823] [2022-02-09 00:29:58,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:58,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:58,469 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:58,470 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:58,470 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8221823] [2022-02-09 00:29:58,470 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8221823] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:58,470 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:58,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:58,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802519392] [2022-02-09 00:29:58,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:58,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:58,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:58,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:58,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:58,471 INFO L87 Difference]: Start difference. First operand 15437 states and 42601 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:58,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:58,680 INFO L93 Difference]: Finished difference Result 15596 states and 42958 transitions. [2022-02-09 00:29:58,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-09 00:29:58,681 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:58,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:58,707 INFO L225 Difference]: With dead ends: 15596 [2022-02-09 00:29:58,707 INFO L226 Difference]: Without dead ends: 15401 [2022-02-09 00:29:58,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-02-09 00:29:58,708 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 119 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:58,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 2331 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:58,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15401 states. [2022-02-09 00:29:58,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15401 to 15401. [2022-02-09 00:29:58,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15401 states, 15400 states have (on average 2.761948051948052) internal successors, (42534), 15400 states have internal predecessors, (42534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:58,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15401 states to 15401 states and 42534 transitions. [2022-02-09 00:29:58,947 INFO L78 Accepts]: Start accepts. Automaton has 15401 states and 42534 transitions. Word has length 227 [2022-02-09 00:29:58,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:58,948 INFO L470 AbstractCegarLoop]: Abstraction has 15401 states and 42534 transitions. [2022-02-09 00:29:58,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:58,948 INFO L276 IsEmpty]: Start isEmpty. Operand 15401 states and 42534 transitions. [2022-02-09 00:29:58,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:58,971 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:58,971 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:58,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-02-09 00:29:58,971 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:58,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:58,971 INFO L85 PathProgramCache]: Analyzing trace with hash -374600859, now seen corresponding path program 27 times [2022-02-09 00:29:58,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:58,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007122896] [2022-02-09 00:29:58,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:58,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:59,075 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:59,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:59,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007122896] [2022-02-09 00:29:59,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007122896] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:59,076 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:59,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:59,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228217381] [2022-02-09 00:29:59,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:59,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:59,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:59,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:59,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:59,077 INFO L87 Difference]: Start difference. First operand 15401 states and 42534 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:59,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:29:59,405 INFO L93 Difference]: Finished difference Result 16216 states and 44510 transitions. [2022-02-09 00:29:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 00:29:59,405 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:29:59,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:29:59,432 INFO L225 Difference]: With dead ends: 16216 [2022-02-09 00:29:59,432 INFO L226 Difference]: Without dead ends: 16069 [2022-02-09 00:29:59,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2022-02-09 00:29:59,433 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 249 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:29:59,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 2674 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:29:59,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16069 states. [2022-02-09 00:29:59,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16069 to 15721. [2022-02-09 00:29:59,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15721 states, 15720 states have (on average 2.759669211195929) internal successors, (43382), 15720 states have internal predecessors, (43382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:59,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15721 states to 15721 states and 43382 transitions. [2022-02-09 00:29:59,681 INFO L78 Accepts]: Start accepts. Automaton has 15721 states and 43382 transitions. Word has length 227 [2022-02-09 00:29:59,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:29:59,682 INFO L470 AbstractCegarLoop]: Abstraction has 15721 states and 43382 transitions. [2022-02-09 00:29:59,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:29:59,682 INFO L276 IsEmpty]: Start isEmpty. Operand 15721 states and 43382 transitions. [2022-02-09 00:29:59,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:29:59,704 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:29:59,704 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:29:59,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-02-09 00:29:59,704 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:29:59,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:29:59,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1463321605, now seen corresponding path program 28 times [2022-02-09 00:29:59,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:29:59,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287609955] [2022-02-09 00:29:59,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:29:59,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:29:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:29:59,802 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:29:59,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:29:59,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287609955] [2022-02-09 00:29:59,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287609955] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:29:59,802 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:29:59,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:29:59,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486435385] [2022-02-09 00:29:59,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:29:59,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:29:59,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:29:59,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:29:59,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:29:59,803 INFO L87 Difference]: Start difference. First operand 15721 states and 43382 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:00,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:00,098 INFO L93 Difference]: Finished difference Result 16066 states and 44147 transitions. [2022-02-09 00:30:00,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 00:30:00,098 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:30:00,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:00,125 INFO L225 Difference]: With dead ends: 16066 [2022-02-09 00:30:00,125 INFO L226 Difference]: Without dead ends: 15639 [2022-02-09 00:30:00,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2022-02-09 00:30:00,125 INFO L933 BasicCegarLoop]: 292 mSDtfsCounter, 226 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:00,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 2679 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:30:00,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15639 states. [2022-02-09 00:30:00,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15639 to 15465. [2022-02-09 00:30:00,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15465 states, 15464 states have (on average 2.759829280910502) internal successors, (42678), 15464 states have internal predecessors, (42678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:00,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15465 states to 15465 states and 42678 transitions. [2022-02-09 00:30:00,464 INFO L78 Accepts]: Start accepts. Automaton has 15465 states and 42678 transitions. Word has length 227 [2022-02-09 00:30:00,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:00,464 INFO L470 AbstractCegarLoop]: Abstraction has 15465 states and 42678 transitions. [2022-02-09 00:30:00,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 15465 states and 42678 transitions. [2022-02-09 00:30:00,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:30:00,491 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:00,491 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:00,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-02-09 00:30:00,492 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:00,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:00,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1993026339, now seen corresponding path program 29 times [2022-02-09 00:30:00,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:00,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472366574] [2022-02-09 00:30:00,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:00,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:00,616 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:00,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:00,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472366574] [2022-02-09 00:30:00,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472366574] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:00,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:00,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:30:00,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274336202] [2022-02-09 00:30:00,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:00,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:30:00,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:00,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:30:00,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:30:00,617 INFO L87 Difference]: Start difference. First operand 15465 states and 42678 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:00,868 INFO L93 Difference]: Finished difference Result 15720 states and 43267 transitions. [2022-02-09 00:30:00,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 00:30:00,869 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:30:00,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:00,898 INFO L225 Difference]: With dead ends: 15720 [2022-02-09 00:30:00,898 INFO L226 Difference]: Without dead ends: 15529 [2022-02-09 00:30:00,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-02-09 00:30:00,898 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 149 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:00,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 2377 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:30:00,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15529 states. [2022-02-09 00:30:01,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15529 to 15433. [2022-02-09 00:30:01,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15433 states, 15432 states have (on average 2.7598496630378433) internal successors, (42590), 15432 states have internal predecessors, (42590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:01,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15433 states to 15433 states and 42590 transitions. [2022-02-09 00:30:01,179 INFO L78 Accepts]: Start accepts. Automaton has 15433 states and 42590 transitions. Word has length 227 [2022-02-09 00:30:01,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:01,180 INFO L470 AbstractCegarLoop]: Abstraction has 15433 states and 42590 transitions. [2022-02-09 00:30:01,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:01,180 INFO L276 IsEmpty]: Start isEmpty. Operand 15433 states and 42590 transitions. [2022-02-09 00:30:01,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:30:01,201 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:01,201 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:01,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-02-09 00:30:01,202 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:01,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:01,202 INFO L85 PathProgramCache]: Analyzing trace with hash -560371091, now seen corresponding path program 30 times [2022-02-09 00:30:01,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:01,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916476558] [2022-02-09 00:30:01,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:01,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:01,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:01,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916476558] [2022-02-09 00:30:01,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916476558] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:01,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:01,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:30:01,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443576854] [2022-02-09 00:30:01,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:01,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:30:01,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:01,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:30:01,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:30:01,315 INFO L87 Difference]: Start difference. First operand 15433 states and 42590 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:01,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:01,549 INFO L93 Difference]: Finished difference Result 15604 states and 42976 transitions. [2022-02-09 00:30:01,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:30:01,549 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:30:01,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:01,578 INFO L225 Difference]: With dead ends: 15604 [2022-02-09 00:30:01,578 INFO L226 Difference]: Without dead ends: 15397 [2022-02-09 00:30:01,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-02-09 00:30:01,578 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 129 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 2538 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:01,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 2538 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:30:01,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15397 states. [2022-02-09 00:30:01,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15397 to 15397. [2022-02-09 00:30:01,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15397 states, 15396 states have (on average 2.761951156144453) internal successors, (42523), 15396 states have internal predecessors, (42523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:01,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15397 states to 15397 states and 42523 transitions. [2022-02-09 00:30:01,820 INFO L78 Accepts]: Start accepts. Automaton has 15397 states and 42523 transitions. Word has length 227 [2022-02-09 00:30:01,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:01,820 INFO L470 AbstractCegarLoop]: Abstraction has 15397 states and 42523 transitions. [2022-02-09 00:30:01,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 15397 states and 42523 transitions. [2022-02-09 00:30:01,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:30:01,847 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:01,848 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:01,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-02-09 00:30:01,848 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:01,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:01,848 INFO L85 PathProgramCache]: Analyzing trace with hash 875777767, now seen corresponding path program 31 times [2022-02-09 00:30:01,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:01,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085561268] [2022-02-09 00:30:01,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:01,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:01,949 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:01,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:01,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085561268] [2022-02-09 00:30:01,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085561268] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:01,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:01,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:30:01,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947479798] [2022-02-09 00:30:01,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:01,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:30:01,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:01,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:30:01,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:30:01,950 INFO L87 Difference]: Start difference. First operand 15397 states and 42523 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:02,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:02,299 INFO L93 Difference]: Finished difference Result 15456 states and 41855 transitions. [2022-02-09 00:30:02,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 00:30:02,299 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:30:02,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:02,325 INFO L225 Difference]: With dead ends: 15456 [2022-02-09 00:30:02,325 INFO L226 Difference]: Without dead ends: 15309 [2022-02-09 00:30:02,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2022-02-09 00:30:02,325 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 350 mSDsluCounter, 2160 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:02,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 2429 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:30:02,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15309 states. [2022-02-09 00:30:02,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15309 to 13797. [2022-02-09 00:30:02,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13797 states, 13796 states have (on average 2.7399246158306756) internal successors, (37800), 13796 states have internal predecessors, (37800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13797 states to 13797 states and 37800 transitions. [2022-02-09 00:30:02,557 INFO L78 Accepts]: Start accepts. Automaton has 13797 states and 37800 transitions. Word has length 227 [2022-02-09 00:30:02,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:02,558 INFO L470 AbstractCegarLoop]: Abstraction has 13797 states and 37800 transitions. [2022-02-09 00:30:02,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:02,558 INFO L276 IsEmpty]: Start isEmpty. Operand 13797 states and 37800 transitions. [2022-02-09 00:30:02,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:30:02,577 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:02,578 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:02,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-02-09 00:30:02,578 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:02,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:02,578 INFO L85 PathProgramCache]: Analyzing trace with hash -212942979, now seen corresponding path program 32 times [2022-02-09 00:30:02,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:02,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626799855] [2022-02-09 00:30:02,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:02,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:02,677 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:02,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:02,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626799855] [2022-02-09 00:30:02,678 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626799855] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:02,678 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:02,678 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:30:02,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600028792] [2022-02-09 00:30:02,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:02,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:30:02,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:02,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:30:02,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:30:02,678 INFO L87 Difference]: Start difference. First operand 13797 states and 37800 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:02,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:02,961 INFO L93 Difference]: Finished difference Result 15135 states and 41078 transitions. [2022-02-09 00:30:02,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-09 00:30:02,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:30:02,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:02,988 INFO L225 Difference]: With dead ends: 15135 [2022-02-09 00:30:02,988 INFO L226 Difference]: Without dead ends: 14708 [2022-02-09 00:30:02,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-02-09 00:30:02,989 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 364 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:02,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 2036 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:30:03,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14708 states. [2022-02-09 00:30:03,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14708 to 13541. [2022-02-09 00:30:03,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13541 states, 13540 states have (on average 2.7397341211226) internal successors, (37096), 13540 states have internal predecessors, (37096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:03,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13541 states to 13541 states and 37096 transitions. [2022-02-09 00:30:03,242 INFO L78 Accepts]: Start accepts. Automaton has 13541 states and 37096 transitions. Word has length 227 [2022-02-09 00:30:03,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:03,243 INFO L470 AbstractCegarLoop]: Abstraction has 13541 states and 37096 transitions. [2022-02-09 00:30:03,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:03,243 INFO L276 IsEmpty]: Start isEmpty. Operand 13541 states and 37096 transitions. [2022-02-09 00:30:03,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:30:03,263 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:03,263 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:03,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-02-09 00:30:03,263 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:03,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:03,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1861767551, now seen corresponding path program 33 times [2022-02-09 00:30:03,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:03,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077525699] [2022-02-09 00:30:03,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:03,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:03,375 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:03,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:03,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077525699] [2022-02-09 00:30:03,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077525699] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:03,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:03,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:30:03,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938772153] [2022-02-09 00:30:03,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:03,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:30:03,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:03,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:30:03,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:30:03,376 INFO L87 Difference]: Start difference. First operand 13541 states and 37096 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:03,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:03,662 INFO L93 Difference]: Finished difference Result 14789 states and 40198 transitions. [2022-02-09 00:30:03,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 00:30:03,662 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:30:03,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:03,688 INFO L225 Difference]: With dead ends: 14789 [2022-02-09 00:30:03,688 INFO L226 Difference]: Without dead ends: 14598 [2022-02-09 00:30:03,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2022-02-09 00:30:03,688 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 246 mSDsluCounter, 2153 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:03,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 2418 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:30:03,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14598 states. [2022-02-09 00:30:03,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14598 to 13509. [2022-02-09 00:30:03,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13509 states, 13508 states have (on average 2.7397098015990524) internal successors, (37008), 13508 states have internal predecessors, (37008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13509 states to 13509 states and 37008 transitions. [2022-02-09 00:30:03,906 INFO L78 Accepts]: Start accepts. Automaton has 13509 states and 37008 transitions. Word has length 227 [2022-02-09 00:30:03,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:03,906 INFO L470 AbstractCegarLoop]: Abstraction has 13509 states and 37008 transitions. [2022-02-09 00:30:03,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:03,906 INFO L276 IsEmpty]: Start isEmpty. Operand 13509 states and 37008 transitions. [2022-02-09 00:30:03,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:30:03,926 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:03,926 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:03,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-02-09 00:30:03,926 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:03,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:03,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1719428251, now seen corresponding path program 34 times [2022-02-09 00:30:03,926 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:03,926 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778950285] [2022-02-09 00:30:03,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:03,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:04,037 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:04,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778950285] [2022-02-09 00:30:04,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778950285] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:04,037 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:04,037 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:30:04,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828803051] [2022-02-09 00:30:04,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:04,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:30:04,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:04,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:30:04,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:30:04,038 INFO L87 Difference]: Start difference. First operand 13509 states and 37008 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:04,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:04,298 INFO L93 Difference]: Finished difference Result 14769 states and 40139 transitions. [2022-02-09 00:30:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 00:30:04,298 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:30:04,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:04,323 INFO L225 Difference]: With dead ends: 14769 [2022-02-09 00:30:04,323 INFO L226 Difference]: Without dead ends: 14566 [2022-02-09 00:30:04,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:30:04,323 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 234 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:04,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 2791 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:30:04,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14566 states. [2022-02-09 00:30:04,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14566 to 13477. [2022-02-09 00:30:04,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13477 states, 13476 states have (on average 2.7396853665776195) internal successors, (36920), 13476 states have internal predecessors, (36920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13477 states to 13477 states and 36920 transitions. [2022-02-09 00:30:04,546 INFO L78 Accepts]: Start accepts. Automaton has 13477 states and 36920 transitions. Word has length 227 [2022-02-09 00:30:04,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:04,546 INFO L470 AbstractCegarLoop]: Abstraction has 13477 states and 36920 transitions. [2022-02-09 00:30:04,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:04,546 INFO L276 IsEmpty]: Start isEmpty. Operand 13477 states and 36920 transitions. [2022-02-09 00:30:04,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:30:04,568 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:04,568 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:04,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-02-09 00:30:04,568 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:04,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:04,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1870981163, now seen corresponding path program 35 times [2022-02-09 00:30:04,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:04,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746224906] [2022-02-09 00:30:04,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:04,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:04,679 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:04,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:04,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746224906] [2022-02-09 00:30:04,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746224906] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:04,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:04,680 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 00:30:04,680 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054244174] [2022-02-09 00:30:04,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:04,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:30:04,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:04,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:30:04,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:30:04,681 INFO L87 Difference]: Start difference. First operand 13477 states and 36920 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:04,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:04,913 INFO L93 Difference]: Finished difference Result 14641 states and 39819 transitions. [2022-02-09 00:30:04,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:30:04,913 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:30:04,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:04,938 INFO L225 Difference]: With dead ends: 14641 [2022-02-09 00:30:04,939 INFO L226 Difference]: Without dead ends: 14418 [2022-02-09 00:30:04,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:30:04,939 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 258 mSDsluCounter, 2161 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:04,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [258 Valid, 2440 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:30:04,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14418 states. [2022-02-09 00:30:05,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14418 to 13785. [2022-02-09 00:30:05,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13785 states, 13784 states have (on average 2.7338218224027857) internal successors, (37683), 13784 states have internal predecessors, (37683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:05,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13785 states to 13785 states and 37683 transitions. [2022-02-09 00:30:05,154 INFO L78 Accepts]: Start accepts. Automaton has 13785 states and 37683 transitions. Word has length 227 [2022-02-09 00:30:05,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:05,154 INFO L470 AbstractCegarLoop]: Abstraction has 13785 states and 37683 transitions. [2022-02-09 00:30:05,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:05,154 INFO L276 IsEmpty]: Start isEmpty. Operand 13785 states and 37683 transitions. [2022-02-09 00:30:05,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-02-09 00:30:05,173 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:05,173 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:05,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-02-09 00:30:05,173 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:05,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:05,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1267834919, now seen corresponding path program 1 times [2022-02-09 00:30:05,174 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:05,174 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644231342] [2022-02-09 00:30:05,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:05,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:05,204 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:05,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:05,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644231342] [2022-02-09 00:30:05,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644231342] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:05,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:05,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:30:05,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999567103] [2022-02-09 00:30:05,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:05,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:30:05,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:05,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:30:05,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:30:05,205 INFO L87 Difference]: Start difference. First operand 13785 states and 37683 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:05,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:05,293 INFO L93 Difference]: Finished difference Result 16699 states and 45640 transitions. [2022-02-09 00:30:05,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 00:30:05,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2022-02-09 00:30:05,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:05,322 INFO L225 Difference]: With dead ends: 16699 [2022-02-09 00:30:05,323 INFO L226 Difference]: Without dead ends: 16699 [2022-02-09 00:30:05,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-09 00:30:05,323 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 179 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:05,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1177 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:30:05,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16699 states. [2022-02-09 00:30:05,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16699 to 13663. [2022-02-09 00:30:05,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13663 states, 13662 states have (on average 2.7154150197628457) internal successors, (37098), 13662 states have internal predecessors, (37098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:05,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13663 states to 13663 states and 37098 transitions. [2022-02-09 00:30:05,641 INFO L78 Accepts]: Start accepts. Automaton has 13663 states and 37098 transitions. Word has length 227 [2022-02-09 00:30:05,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:05,641 INFO L470 AbstractCegarLoop]: Abstraction has 13663 states and 37098 transitions. [2022-02-09 00:30:05,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:05,641 INFO L276 IsEmpty]: Start isEmpty. Operand 13663 states and 37098 transitions. [2022-02-09 00:30:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-02-09 00:30:05,661 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:05,661 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:05,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-02-09 00:30:05,661 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:05,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:05,661 INFO L85 PathProgramCache]: Analyzing trace with hash 501455919, now seen corresponding path program 1 times [2022-02-09 00:30:05,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:05,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143968030] [2022-02-09 00:30:05,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:05,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:05,703 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:05,703 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:05,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143968030] [2022-02-09 00:30:05,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143968030] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:30:05,703 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539770943] [2022-02-09 00:30:05,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:05,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:30:05,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:30:05,705 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:30:05,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 00:30:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:05,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-09 00:30:05,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:30:06,229 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:06,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:30:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:06,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539770943] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:30:06,522 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:30:06,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-02-09 00:30:06,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107797546] [2022-02-09 00:30:06,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:30:06,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-09 00:30:06,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:06,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-09 00:30:06,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-02-09 00:30:06,523 INFO L87 Difference]: Start difference. First operand 13663 states and 37098 transitions. Second operand has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 13 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:06,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:06,719 INFO L93 Difference]: Finished difference Result 31225 states and 85401 transitions. [2022-02-09 00:30:06,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 00:30:06,719 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 13 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2022-02-09 00:30:06,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:06,784 INFO L225 Difference]: With dead ends: 31225 [2022-02-09 00:30:06,785 INFO L226 Difference]: Without dead ends: 31225 [2022-02-09 00:30:06,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-02-09 00:30:06,785 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 1010 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:06,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 1463 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:30:06,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31225 states. [2022-02-09 00:30:07,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31225 to 23355. [2022-02-09 00:30:07,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23355 states, 23354 states have (on average 2.748865290742485) internal successors, (64197), 23354 states have internal predecessors, (64197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:07,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23355 states to 23355 states and 64197 transitions. [2022-02-09 00:30:07,271 INFO L78 Accepts]: Start accepts. Automaton has 23355 states and 64197 transitions. Word has length 230 [2022-02-09 00:30:07,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:07,271 INFO L470 AbstractCegarLoop]: Abstraction has 23355 states and 64197 transitions. [2022-02-09 00:30:07,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.153846153846153) internal successors, (236), 13 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:07,272 INFO L276 IsEmpty]: Start isEmpty. Operand 23355 states and 64197 transitions. [2022-02-09 00:30:07,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-02-09 00:30:07,299 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:07,299 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:07,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-09 00:30:07,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable166 [2022-02-09 00:30:07,500 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:07,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:07,500 INFO L85 PathProgramCache]: Analyzing trace with hash -563810257, now seen corresponding path program 1 times [2022-02-09 00:30:07,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:07,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232130969] [2022-02-09 00:30:07,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:07,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:07,553 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:07,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:07,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232130969] [2022-02-09 00:30:07,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232130969] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:30:07,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109178916] [2022-02-09 00:30:07,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:07,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:30:07,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:30:07,556 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 00:30:07,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 00:30:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:07,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-09 00:30:07,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:30:08,171 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:08,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:30:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:08,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109178916] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:30:08,504 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:30:08,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-02-09 00:30:08,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903633557] [2022-02-09 00:30:08,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:30:08,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-09 00:30:08,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:08,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-09 00:30:08,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-02-09 00:30:08,505 INFO L87 Difference]: Start difference. First operand 23355 states and 64197 transitions. Second operand has 13 states, 13 states have (on average 22.76923076923077) internal successors, (296), 13 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:08,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:08,797 INFO L93 Difference]: Finished difference Result 56701 states and 156233 transitions. [2022-02-09 00:30:08,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 00:30:08,797 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 22.76923076923077) internal successors, (296), 13 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2022-02-09 00:30:08,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:09,064 INFO L225 Difference]: With dead ends: 56701 [2022-02-09 00:30:09,064 INFO L226 Difference]: Without dead ends: 56701 [2022-02-09 00:30:09,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2022-02-09 00:30:09,065 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 828 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:09,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [828 Valid, 1886 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:30:09,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56701 states. [2022-02-09 00:30:09,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56701 to 39273. [2022-02-09 00:30:09,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39273 states, 39272 states have (on average 2.7951466693827665) internal successors, (109771), 39272 states have internal predecessors, (109771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:09,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39273 states to 39273 states and 109771 transitions. [2022-02-09 00:30:09,927 INFO L78 Accepts]: Start accepts. Automaton has 39273 states and 109771 transitions. Word has length 230 [2022-02-09 00:30:09,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:09,927 INFO L470 AbstractCegarLoop]: Abstraction has 39273 states and 109771 transitions. [2022-02-09 00:30:09,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 22.76923076923077) internal successors, (296), 13 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:09,927 INFO L276 IsEmpty]: Start isEmpty. Operand 39273 states and 109771 transitions. [2022-02-09 00:30:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:30:09,963 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:09,963 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:09,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 00:30:10,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable167 [2022-02-09 00:30:10,164 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:10,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:10,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1435683988, now seen corresponding path program 1 times [2022-02-09 00:30:10,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:10,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588448202] [2022-02-09 00:30:10,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:10,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:10,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:10,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588448202] [2022-02-09 00:30:10,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588448202] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:10,759 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:10,759 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:30:10,759 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164578106] [2022-02-09 00:30:10,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:10,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:30:10,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:10,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:30:10,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:30:10,760 INFO L87 Difference]: Start difference. First operand 39273 states and 109771 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:15,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:15,178 INFO L93 Difference]: Finished difference Result 51026 states and 140942 transitions. [2022-02-09 00:30:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-09 00:30:15,178 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:30:15,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:15,290 INFO L225 Difference]: With dead ends: 51026 [2022-02-09 00:30:15,290 INFO L226 Difference]: Without dead ends: 50234 [2022-02-09 00:30:15,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3009 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2303, Invalid=9687, Unknown=0, NotChecked=0, Total=11990 [2022-02-09 00:30:15,292 INFO L933 BasicCegarLoop]: 772 mSDtfsCounter, 2434 mSDsluCounter, 9869 mSDsCounter, 0 mSdLazyCounter, 3315 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 10381 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:15,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2434 Valid, 10381 Invalid, 3339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3315 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 00:30:15,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50234 states. [2022-02-09 00:30:16,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50234 to 39273. [2022-02-09 00:30:16,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39273 states, 39272 states have (on average 2.794892035037686) internal successors, (109761), 39272 states have internal predecessors, (109761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39273 states to 39273 states and 109761 transitions. [2022-02-09 00:30:16,354 INFO L78 Accepts]: Start accepts. Automaton has 39273 states and 109761 transitions. Word has length 231 [2022-02-09 00:30:16,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:16,355 INFO L470 AbstractCegarLoop]: Abstraction has 39273 states and 109761 transitions. [2022-02-09 00:30:16,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 39273 states and 109761 transitions. [2022-02-09 00:30:16,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:30:16,396 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:16,396 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:16,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-02-09 00:30:16,397 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:16,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:16,397 INFO L85 PathProgramCache]: Analyzing trace with hash 766716600, now seen corresponding path program 2 times [2022-02-09 00:30:16,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:16,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966002954] [2022-02-09 00:30:16,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:16,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:16,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:16,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966002954] [2022-02-09 00:30:16,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966002954] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:16,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:16,937 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:30:16,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539149059] [2022-02-09 00:30:16,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:16,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:30:16,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:16,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:30:16,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:30:16,938 INFO L87 Difference]: Start difference. First operand 39273 states and 109761 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:23,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:23,404 INFO L93 Difference]: Finished difference Result 54465 states and 150546 transitions. [2022-02-09 00:30:23,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-09 00:30:23,404 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:30:23,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:23,517 INFO L225 Difference]: With dead ends: 54465 [2022-02-09 00:30:23,517 INFO L226 Difference]: Without dead ends: 53816 [2022-02-09 00:30:23,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5263 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=3625, Invalid=15007, Unknown=0, NotChecked=0, Total=18632 [2022-02-09 00:30:23,518 INFO L933 BasicCegarLoop]: 766 mSDtfsCounter, 2456 mSDsluCounter, 9885 mSDsCounter, 0 mSdLazyCounter, 3370 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2456 SdHoareTripleChecker+Valid, 10403 SdHoareTripleChecker+Invalid, 3389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:23,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2456 Valid, 10403 Invalid, 3389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 3370 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 00:30:23,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53816 states. [2022-02-09 00:30:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53816 to 39616. [2022-02-09 00:30:24,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39616 states, 39615 states have (on average 2.794118389498927) internal successors, (110689), 39615 states have internal predecessors, (110689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39616 states to 39616 states and 110689 transitions. [2022-02-09 00:30:24,626 INFO L78 Accepts]: Start accepts. Automaton has 39616 states and 110689 transitions. Word has length 231 [2022-02-09 00:30:24,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:24,626 INFO L470 AbstractCegarLoop]: Abstraction has 39616 states and 110689 transitions. [2022-02-09 00:30:24,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:24,626 INFO L276 IsEmpty]: Start isEmpty. Operand 39616 states and 110689 transitions. [2022-02-09 00:30:24,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:30:24,669 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:24,669 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:24,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-02-09 00:30:24,669 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:24,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:24,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1454566740, now seen corresponding path program 3 times [2022-02-09 00:30:24,669 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:24,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155589468] [2022-02-09 00:30:24,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:24,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:25,346 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:25,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:25,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155589468] [2022-02-09 00:30:25,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155589468] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:25,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:25,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-09 00:30:25,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134356627] [2022-02-09 00:30:25,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:25,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-09 00:30:25,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:25,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-09 00:30:25,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=738, Unknown=0, NotChecked=0, Total=812 [2022-02-09 00:30:25,348 INFO L87 Difference]: Start difference. First operand 39616 states and 110689 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:31,981 INFO L93 Difference]: Finished difference Result 67360 states and 185691 transitions. [2022-02-09 00:30:31,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-02-09 00:30:31,981 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:30:31,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:32,135 INFO L225 Difference]: With dead ends: 67360 [2022-02-09 00:30:32,135 INFO L226 Difference]: Without dead ends: 67360 [2022-02-09 00:30:32,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4835 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=3572, Invalid=14250, Unknown=0, NotChecked=0, Total=17822 [2022-02-09 00:30:32,136 INFO L933 BasicCegarLoop]: 706 mSDtfsCounter, 2596 mSDsluCounter, 8239 mSDsCounter, 0 mSdLazyCounter, 3125 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2596 SdHoareTripleChecker+Valid, 8793 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:32,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2596 Valid, 8793 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3125 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 00:30:32,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67360 states. [2022-02-09 00:30:33,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67360 to 39680. [2022-02-09 00:30:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39680 states, 39679 states have (on average 2.794248846997152) internal successors, (110873), 39679 states have internal predecessors, (110873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:33,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-02-09 00:30:33,147 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-02-09 00:30:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:33,147 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-02-09 00:30:33,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:33,148 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-02-09 00:30:33,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:30:33,190 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:33,190 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:33,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-02-09 00:30:33,190 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:33,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1020096502, now seen corresponding path program 4 times [2022-02-09 00:30:33,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:33,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976793515] [2022-02-09 00:30:33,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:33,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:33,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:33,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976793515] [2022-02-09 00:30:33,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976793515] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:33,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:33,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:30:33,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767331714] [2022-02-09 00:30:33,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:33,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:30:33,920 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:33,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:30:33,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:30:33,920 INFO L87 Difference]: Start difference. First operand 39680 states and 110873 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:40,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:40,135 INFO L93 Difference]: Finished difference Result 52998 states and 146732 transitions. [2022-02-09 00:30:40,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-09 00:30:40,136 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:30:40,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:40,258 INFO L225 Difference]: With dead ends: 52998 [2022-02-09 00:30:40,259 INFO L226 Difference]: Without dead ends: 52998 [2022-02-09 00:30:40,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4175 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=3332, Invalid=12418, Unknown=0, NotChecked=0, Total=15750 [2022-02-09 00:30:40,260 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 2346 mSDsluCounter, 9428 mSDsCounter, 0 mSdLazyCounter, 3455 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2346 SdHoareTripleChecker+Valid, 9967 SdHoareTripleChecker+Invalid, 3471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:40,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2346 Valid, 9967 Invalid, 3471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3455 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 00:30:40,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52998 states. [2022-02-09 00:30:41,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52998 to 39680. [2022-02-09 00:30:41,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39680 states, 39679 states have (on average 2.794248846997152) internal successors, (110873), 39679 states have internal predecessors, (110873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:41,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-02-09 00:30:41,343 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-02-09 00:30:41,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:41,343 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-02-09 00:30:41,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:41,343 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-02-09 00:30:41,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:30:41,487 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:41,487 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:41,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-02-09 00:30:41,488 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:41,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:41,488 INFO L85 PathProgramCache]: Analyzing trace with hash -773984514, now seen corresponding path program 5 times [2022-02-09 00:30:41,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:41,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742234783] [2022-02-09 00:30:41,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:41,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:42,093 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:42,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:42,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742234783] [2022-02-09 00:30:42,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742234783] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:42,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:42,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:30:42,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59504837] [2022-02-09 00:30:42,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:42,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:30:42,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:42,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:30:42,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:30:42,095 INFO L87 Difference]: Start difference. First operand 39680 states and 110873 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:49,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:49,308 INFO L93 Difference]: Finished difference Result 53081 states and 146904 transitions. [2022-02-09 00:30:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-02-09 00:30:49,309 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:30:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:49,421 INFO L225 Difference]: With dead ends: 53081 [2022-02-09 00:30:49,421 INFO L226 Difference]: Without dead ends: 53081 [2022-02-09 00:30:49,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5625 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=4175, Invalid=15565, Unknown=0, NotChecked=0, Total=19740 [2022-02-09 00:30:49,422 INFO L933 BasicCegarLoop]: 789 mSDtfsCounter, 2464 mSDsluCounter, 9698 mSDsCounter, 0 mSdLazyCounter, 3633 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2464 SdHoareTripleChecker+Valid, 10265 SdHoareTripleChecker+Invalid, 3649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:49,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2464 Valid, 10265 Invalid, 3649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3633 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-09 00:30:49,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53081 states. [2022-02-09 00:30:50,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53081 to 39680. [2022-02-09 00:30:50,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39680 states, 39679 states have (on average 2.794248846997152) internal successors, (110873), 39679 states have internal predecessors, (110873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:50,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39680 states to 39680 states and 110873 transitions. [2022-02-09 00:30:50,309 INFO L78 Accepts]: Start accepts. Automaton has 39680 states and 110873 transitions. Word has length 231 [2022-02-09 00:30:50,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:50,309 INFO L470 AbstractCegarLoop]: Abstraction has 39680 states and 110873 transitions. [2022-02-09 00:30:50,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:50,309 INFO L276 IsEmpty]: Start isEmpty. Operand 39680 states and 110873 transitions. [2022-02-09 00:30:50,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:30:50,353 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:50,353 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:50,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-02-09 00:30:50,353 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:50,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:50,353 INFO L85 PathProgramCache]: Analyzing trace with hash -430937490, now seen corresponding path program 6 times [2022-02-09 00:30:50,353 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:50,353 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752524399] [2022-02-09 00:30:50,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:50,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:51,026 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:51,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:51,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752524399] [2022-02-09 00:30:51,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752524399] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:51,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:51,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-09 00:30:51,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567528496] [2022-02-09 00:30:51,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:51,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 00:30:51,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:51,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 00:30:51,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=633, Unknown=0, NotChecked=0, Total=702 [2022-02-09 00:30:51,027 INFO L87 Difference]: Start difference. First operand 39680 states and 110873 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:56,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:30:56,407 INFO L93 Difference]: Finished difference Result 57004 states and 157565 transitions. [2022-02-09 00:30:56,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-09 00:30:56,408 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:30:56,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:30:56,532 INFO L225 Difference]: With dead ends: 57004 [2022-02-09 00:30:56,533 INFO L226 Difference]: Without dead ends: 56355 [2022-02-09 00:30:56,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5353 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=3656, Invalid=14704, Unknown=0, NotChecked=0, Total=18360 [2022-02-09 00:30:56,534 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 2405 mSDsluCounter, 8568 mSDsCounter, 0 mSdLazyCounter, 2926 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 9067 SdHoareTripleChecker+Invalid, 2942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:30:56,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2405 Valid, 9067 Invalid, 2942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2926 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-09 00:30:56,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56355 states. [2022-02-09 00:30:57,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56355 to 39776. [2022-02-09 00:30:57,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39776 states, 39775 states have (on average 2.794644877435575) internal successors, (111157), 39775 states have internal predecessors, (111157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:57,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39776 states to 39776 states and 111157 transitions. [2022-02-09 00:30:57,622 INFO L78 Accepts]: Start accepts. Automaton has 39776 states and 111157 transitions. Word has length 231 [2022-02-09 00:30:57,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:30:57,623 INFO L470 AbstractCegarLoop]: Abstraction has 39776 states and 111157 transitions. [2022-02-09 00:30:57,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:30:57,623 INFO L276 IsEmpty]: Start isEmpty. Operand 39776 states and 111157 transitions. [2022-02-09 00:30:57,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:30:57,664 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:30:57,664 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:30:57,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-02-09 00:30:57,664 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:30:57,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:30:57,664 INFO L85 PathProgramCache]: Analyzing trace with hash 256912650, now seen corresponding path program 7 times [2022-02-09 00:30:57,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:30:57,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493241266] [2022-02-09 00:30:57,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:30:57,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:30:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:30:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:30:58,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:30:58,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493241266] [2022-02-09 00:30:58,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493241266] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:30:58,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:30:58,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-09 00:30:58,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803271323] [2022-02-09 00:30:58,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:30:58,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-09 00:30:58,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:30:58,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-09 00:30:58,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-02-09 00:30:58,257 INFO L87 Difference]: Start difference. First operand 39776 states and 111157 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:04,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:31:04,821 INFO L93 Difference]: Finished difference Result 73152 states and 201939 transitions. [2022-02-09 00:31:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-02-09 00:31:04,822 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:31:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:31:04,981 INFO L225 Difference]: With dead ends: 73152 [2022-02-09 00:31:04,981 INFO L226 Difference]: Without dead ends: 73152 [2022-02-09 00:31:04,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6265 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=4325, Invalid=16845, Unknown=0, NotChecked=0, Total=21170 [2022-02-09 00:31:04,983 INFO L933 BasicCegarLoop]: 657 mSDtfsCounter, 2370 mSDsluCounter, 9006 mSDsCounter, 0 mSdLazyCounter, 3398 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 9507 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:31:04,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2370 Valid, 9507 Invalid, 3424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3398 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 00:31:05,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73152 states. [2022-02-09 00:31:06,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73152 to 39784. [2022-02-09 00:31:06,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39784 states, 39783 states have (on average 2.7949375361335242) internal successors, (111191), 39783 states have internal predecessors, (111191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:06,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39784 states to 39784 states and 111191 transitions. [2022-02-09 00:31:06,287 INFO L78 Accepts]: Start accepts. Automaton has 39784 states and 111191 transitions. Word has length 231 [2022-02-09 00:31:06,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:31:06,287 INFO L470 AbstractCegarLoop]: Abstraction has 39784 states and 111191 transitions. [2022-02-09 00:31:06,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:06,287 INFO L276 IsEmpty]: Start isEmpty. Operand 39784 states and 111191 transitions. [2022-02-09 00:31:06,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:31:06,327 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:31:06,328 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:31:06,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-02-09 00:31:06,328 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:31:06,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:31:06,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2077216704, now seen corresponding path program 8 times [2022-02-09 00:31:06,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:31:06,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260390425] [2022-02-09 00:31:06,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:31:06,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:31:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:31:07,079 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:31:07,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:31:07,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260390425] [2022-02-09 00:31:07,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260390425] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:31:07,080 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:31:07,080 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:31:07,080 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057487340] [2022-02-09 00:31:07,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:31:07,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:31:07,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:31:07,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:31:07,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:31:07,081 INFO L87 Difference]: Start difference. First operand 39784 states and 111191 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:15,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:31:15,316 INFO L93 Difference]: Finished difference Result 57442 states and 159297 transitions. [2022-02-09 00:31:15,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-09 00:31:15,316 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:31:15,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:31:15,433 INFO L225 Difference]: With dead ends: 57442 [2022-02-09 00:31:15,433 INFO L226 Difference]: Without dead ends: 57442 [2022-02-09 00:31:15,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6614 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=4673, Invalid=17677, Unknown=0, NotChecked=0, Total=22350 [2022-02-09 00:31:15,434 INFO L933 BasicCegarLoop]: 741 mSDtfsCounter, 2274 mSDsluCounter, 10922 mSDsCounter, 0 mSdLazyCounter, 4214 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 11461 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-02-09 00:31:15,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2274 Valid, 11461 Invalid, 4228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4214 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-09 00:31:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57442 states. [2022-02-09 00:31:16,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57442 to 39780. [2022-02-09 00:31:16,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39780 states, 39779 states have (on average 2.79474094371402) internal successors, (111172), 39779 states have internal predecessors, (111172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:16,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39780 states to 39780 states and 111172 transitions. [2022-02-09 00:31:16,360 INFO L78 Accepts]: Start accepts. Automaton has 39780 states and 111172 transitions. Word has length 231 [2022-02-09 00:31:16,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:31:16,360 INFO L470 AbstractCegarLoop]: Abstraction has 39780 states and 111172 transitions. [2022-02-09 00:31:16,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:16,361 INFO L276 IsEmpty]: Start isEmpty. Operand 39780 states and 111172 transitions. [2022-02-09 00:31:16,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:31:16,400 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:31:16,400 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:31:16,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-02-09 00:31:16,400 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:31:16,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:31:16,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1971638604, now seen corresponding path program 9 times [2022-02-09 00:31:16,400 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:31:16,401 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061189982] [2022-02-09 00:31:16,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:31:16,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:31:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:31:16,864 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:31:16,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:31:16,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061189982] [2022-02-09 00:31:16,864 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061189982] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:31:16,864 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:31:16,864 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:31:16,864 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268693999] [2022-02-09 00:31:16,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:31:16,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:31:16,865 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:31:16,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:31:16,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:31:16,865 INFO L87 Difference]: Start difference. First operand 39780 states and 111172 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:24,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:31:24,546 INFO L93 Difference]: Finished difference Result 57721 states and 159952 transitions. [2022-02-09 00:31:24,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-02-09 00:31:24,547 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:31:24,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:31:24,671 INFO L225 Difference]: With dead ends: 57721 [2022-02-09 00:31:24,671 INFO L226 Difference]: Without dead ends: 57721 [2022-02-09 00:31:24,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8305 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=5591, Invalid=20815, Unknown=0, NotChecked=0, Total=26406 [2022-02-09 00:31:24,674 INFO L933 BasicCegarLoop]: 738 mSDtfsCounter, 2197 mSDsluCounter, 9505 mSDsCounter, 0 mSdLazyCounter, 3482 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 10020 SdHoareTripleChecker+Invalid, 3496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:31:24,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2197 Valid, 10020 Invalid, 3496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3482 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 00:31:24,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57721 states. [2022-02-09 00:31:25,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57721 to 39728. [2022-02-09 00:31:25,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39728 states, 39727 states have (on average 2.7942960706824076) internal successors, (111009), 39727 states have internal predecessors, (111009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39728 states to 39728 states and 111009 transitions. [2022-02-09 00:31:25,749 INFO L78 Accepts]: Start accepts. Automaton has 39728 states and 111009 transitions. Word has length 231 [2022-02-09 00:31:25,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:31:25,750 INFO L470 AbstractCegarLoop]: Abstraction has 39728 states and 111009 transitions. [2022-02-09 00:31:25,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 39728 states and 111009 transitions. [2022-02-09 00:31:25,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:31:25,794 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:31:25,794 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:31:25,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-02-09 00:31:25,795 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:31:25,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:31:25,795 INFO L85 PathProgramCache]: Analyzing trace with hash 533439422, now seen corresponding path program 10 times [2022-02-09 00:31:25,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:31:25,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825637235] [2022-02-09 00:31:25,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:31:25,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:31:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:31:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:31:26,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:31:26,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825637235] [2022-02-09 00:31:26,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825637235] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:31:26,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:31:26,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:31:26,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188299104] [2022-02-09 00:31:26,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:31:26,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:31:26,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:31:26,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:31:26,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:31:26,394 INFO L87 Difference]: Start difference. First operand 39728 states and 111009 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:33,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:31:33,360 INFO L93 Difference]: Finished difference Result 62497 states and 172477 transitions. [2022-02-09 00:31:33,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-02-09 00:31:33,361 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:31:33,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:31:33,503 INFO L225 Difference]: With dead ends: 62497 [2022-02-09 00:31:33,503 INFO L226 Difference]: Without dead ends: 62025 [2022-02-09 00:31:33,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5891 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=4290, Invalid=15450, Unknown=0, NotChecked=0, Total=19740 [2022-02-09 00:31:33,504 INFO L933 BasicCegarLoop]: 594 mSDtfsCounter, 2204 mSDsluCounter, 7969 mSDsCounter, 0 mSdLazyCounter, 3128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 8397 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:31:33,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2204 Valid, 8397 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3128 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-09 00:31:33,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62025 states. [2022-02-09 00:31:34,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62025 to 39752. [2022-02-09 00:31:34,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39752 states, 39751 states have (on average 2.794369952957158) internal successors, (111079), 39751 states have internal predecessors, (111079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:34,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39752 states to 39752 states and 111079 transitions. [2022-02-09 00:31:34,509 INFO L78 Accepts]: Start accepts. Automaton has 39752 states and 111079 transitions. Word has length 231 [2022-02-09 00:31:34,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:31:34,510 INFO L470 AbstractCegarLoop]: Abstraction has 39752 states and 111079 transitions. [2022-02-09 00:31:34,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:34,510 INFO L276 IsEmpty]: Start isEmpty. Operand 39752 states and 111079 transitions. [2022-02-09 00:31:34,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:31:34,553 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:31:34,553 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:31:34,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-02-09 00:31:34,553 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:31:34,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:31:34,554 INFO L85 PathProgramCache]: Analyzing trace with hash -614085760, now seen corresponding path program 11 times [2022-02-09 00:31:34,554 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:31:34,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394225059] [2022-02-09 00:31:34,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:31:34,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:31:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:31:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:31:35,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:31:35,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394225059] [2022-02-09 00:31:35,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394225059] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:31:35,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:31:35,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:31:35,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23107315] [2022-02-09 00:31:35,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:31:35,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:31:35,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:31:35,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:31:35,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:31:35,317 INFO L87 Difference]: Start difference. First operand 39752 states and 111079 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:42,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:31:42,901 INFO L93 Difference]: Finished difference Result 63469 states and 175453 transitions. [2022-02-09 00:31:42,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-09 00:31:42,902 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:31:42,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:31:43,049 INFO L225 Difference]: With dead ends: 63469 [2022-02-09 00:31:43,050 INFO L226 Difference]: Without dead ends: 62944 [2022-02-09 00:31:43,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7109 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=5014, Invalid=17636, Unknown=0, NotChecked=0, Total=22650 [2022-02-09 00:31:43,051 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 2272 mSDsluCounter, 7929 mSDsCounter, 0 mSdLazyCounter, 3196 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 8333 SdHoareTripleChecker+Invalid, 3221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:31:43,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2272 Valid, 8333 Invalid, 3221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3196 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-09 00:31:43,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62944 states. [2022-02-09 00:31:43,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62944 to 39808. [2022-02-09 00:31:43,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39808 states, 39807 states have (on average 2.79430753385083) internal successors, (111233), 39807 states have internal predecessors, (111233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:44,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39808 states to 39808 states and 111233 transitions. [2022-02-09 00:31:44,070 INFO L78 Accepts]: Start accepts. Automaton has 39808 states and 111233 transitions. Word has length 231 [2022-02-09 00:31:44,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:31:44,070 INFO L470 AbstractCegarLoop]: Abstraction has 39808 states and 111233 transitions. [2022-02-09 00:31:44,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:44,070 INFO L276 IsEmpty]: Start isEmpty. Operand 39808 states and 111233 transitions. [2022-02-09 00:31:44,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:31:44,111 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:31:44,111 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:31:44,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-02-09 00:31:44,112 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:31:44,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:31:44,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1751947262, now seen corresponding path program 12 times [2022-02-09 00:31:44,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:31:44,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873301740] [2022-02-09 00:31:44,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:31:44,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:31:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:31:44,914 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:31:44,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:31:44,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873301740] [2022-02-09 00:31:44,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873301740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:31:44,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:31:44,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:31:44,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25464937] [2022-02-09 00:31:44,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:31:44,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:31:44,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:31:44,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:31:44,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:31:44,915 INFO L87 Difference]: Start difference. First operand 39808 states and 111233 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:50,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:31:50,316 INFO L93 Difference]: Finished difference Result 75267 states and 209561 transitions. [2022-02-09 00:31:50,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2022-02-09 00:31:50,317 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:31:50,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:31:50,501 INFO L225 Difference]: With dead ends: 75267 [2022-02-09 00:31:50,502 INFO L226 Difference]: Without dead ends: 75267 [2022-02-09 00:31:50,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3641 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=3003, Invalid=10569, Unknown=0, NotChecked=0, Total=13572 [2022-02-09 00:31:50,502 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 2078 mSDsluCounter, 7244 mSDsCounter, 0 mSdLazyCounter, 2894 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 7633 SdHoareTripleChecker+Invalid, 2918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:31:50,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2078 Valid, 7633 Invalid, 2918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2894 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-09 00:31:50,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75267 states. [2022-02-09 00:31:51,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75267 to 39792. [2022-02-09 00:31:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39792 states, 39791 states have (on average 2.7942248247091053) internal successors, (111185), 39791 states have internal predecessors, (111185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:51,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-02-09 00:31:51,648 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-02-09 00:31:51,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:31:51,648 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-02-09 00:31:51,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:51,648 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-02-09 00:31:51,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:31:51,691 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:31:51,691 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:31:51,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-02-09 00:31:51,691 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:31:51,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:31:51,692 INFO L85 PathProgramCache]: Analyzing trace with hash -324715772, now seen corresponding path program 13 times [2022-02-09 00:31:51,692 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:31:51,692 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84999934] [2022-02-09 00:31:51,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:31:51,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:31:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:31:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:31:52,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:31:52,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84999934] [2022-02-09 00:31:52,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84999934] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:31:52,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:31:52,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:31:52,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511167201] [2022-02-09 00:31:52,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:31:52,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:31:52,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:31:52,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:31:52,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:31:52,422 INFO L87 Difference]: Start difference. First operand 39792 states and 111185 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:31:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:31:59,167 INFO L93 Difference]: Finished difference Result 69884 states and 192760 transitions. [2022-02-09 00:31:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-02-09 00:31:59,167 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:31:59,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:31:59,319 INFO L225 Difference]: With dead ends: 69884 [2022-02-09 00:31:59,319 INFO L226 Difference]: Without dead ends: 69884 [2022-02-09 00:31:59,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6349 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=4334, Invalid=16546, Unknown=0, NotChecked=0, Total=20880 [2022-02-09 00:31:59,321 INFO L933 BasicCegarLoop]: 647 mSDtfsCounter, 2146 mSDsluCounter, 8384 mSDsCounter, 0 mSdLazyCounter, 3341 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 8878 SdHoareTripleChecker+Invalid, 3362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:31:59,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2146 Valid, 8878 Invalid, 3362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3341 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 00:31:59,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69884 states. [2022-02-09 00:32:00,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69884 to 39796. [2022-02-09 00:32:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39796 states, 39795 states have (on average 2.7944214097248397) internal successors, (111204), 39795 states have internal predecessors, (111204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:00,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39796 states to 39796 states and 111204 transitions. [2022-02-09 00:32:00,553 INFO L78 Accepts]: Start accepts. Automaton has 39796 states and 111204 transitions. Word has length 231 [2022-02-09 00:32:00,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:32:00,554 INFO L470 AbstractCegarLoop]: Abstraction has 39796 states and 111204 transitions. [2022-02-09 00:32:00,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:00,554 INFO L276 IsEmpty]: Start isEmpty. Operand 39796 states and 111204 transitions. [2022-02-09 00:32:00,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:32:00,598 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:32:00,598 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:32:00,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-02-09 00:32:00,598 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:32:00,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:32:00,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1495588282, now seen corresponding path program 14 times [2022-02-09 00:32:00,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:32:00,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604410271] [2022-02-09 00:32:00,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:32:00,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:32:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:32:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:32:01,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:32:01,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604410271] [2022-02-09 00:32:01,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604410271] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:32:01,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:32:01,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-09 00:32:01,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729788615] [2022-02-09 00:32:01,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:32:01,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 00:32:01,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:32:01,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 00:32:01,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2022-02-09 00:32:01,112 INFO L87 Difference]: Start difference. First operand 39796 states and 111204 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:06,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:32:06,816 INFO L93 Difference]: Finished difference Result 53754 states and 148939 transitions. [2022-02-09 00:32:06,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2022-02-09 00:32:06,817 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:32:06,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:32:06,941 INFO L225 Difference]: With dead ends: 53754 [2022-02-09 00:32:06,942 INFO L226 Difference]: Without dead ends: 53754 [2022-02-09 00:32:06,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4482 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=3526, Invalid=12476, Unknown=0, NotChecked=0, Total=16002 [2022-02-09 00:32:06,943 INFO L933 BasicCegarLoop]: 630 mSDtfsCounter, 2035 mSDsluCounter, 8461 mSDsCounter, 0 mSdLazyCounter, 3215 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 8916 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:32:06,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2035 Valid, 8916 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3215 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 00:32:07,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53754 states. [2022-02-09 00:32:07,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53754 to 39792. [2022-02-09 00:32:07,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39792 states, 39791 states have (on average 2.7942248247091053) internal successors, (111185), 39791 states have internal predecessors, (111185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:07,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-02-09 00:32:07,861 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-02-09 00:32:07,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:32:07,862 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-02-09 00:32:07,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:07,862 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-02-09 00:32:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:32:07,905 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:32:07,905 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:32:07,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-02-09 00:32:07,905 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:32:07,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:32:07,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1109678508, now seen corresponding path program 15 times [2022-02-09 00:32:07,906 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:32:07,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845769159] [2022-02-09 00:32:07,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:32:07,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:32:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:32:08,415 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:32:08,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:32:08,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845769159] [2022-02-09 00:32:08,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845769159] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:32:08,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:32:08,416 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:32:08,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145999512] [2022-02-09 00:32:08,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:32:08,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:32:08,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:32:08,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:32:08,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:32:08,417 INFO L87 Difference]: Start difference. First operand 39792 states and 111185 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:16,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:32:16,636 INFO L93 Difference]: Finished difference Result 70136 states and 193457 transitions. [2022-02-09 00:32:16,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-02-09 00:32:16,636 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:32:16,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:32:16,792 INFO L225 Difference]: With dead ends: 70136 [2022-02-09 00:32:16,793 INFO L226 Difference]: Without dead ends: 70136 [2022-02-09 00:32:16,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8593 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=5525, Invalid=20881, Unknown=0, NotChecked=0, Total=26406 [2022-02-09 00:32:16,794 INFO L933 BasicCegarLoop]: 670 mSDtfsCounter, 2115 mSDsluCounter, 8711 mSDsCounter, 0 mSdLazyCounter, 3545 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 9220 SdHoareTripleChecker+Invalid, 3569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:32:16,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2115 Valid, 9220 Invalid, 3569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3545 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 00:32:16,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70136 states. [2022-02-09 00:32:17,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70136 to 39800. [2022-02-09 00:32:17,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39800 states, 39799 states have (on average 2.7945174501871906) internal successors, (111219), 39799 states have internal predecessors, (111219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:17,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39800 states to 39800 states and 111219 transitions. [2022-02-09 00:32:17,881 INFO L78 Accepts]: Start accepts. Automaton has 39800 states and 111219 transitions. Word has length 231 [2022-02-09 00:32:17,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:32:17,882 INFO L470 AbstractCegarLoop]: Abstraction has 39800 states and 111219 transitions. [2022-02-09 00:32:17,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 39800 states and 111219 transitions. [2022-02-09 00:32:17,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:32:17,924 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:32:17,924 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:32:17,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-02-09 00:32:17,925 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:32:17,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:32:17,925 INFO L85 PathProgramCache]: Analyzing trace with hash 710625546, now seen corresponding path program 16 times [2022-02-09 00:32:17,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:32:17,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397370490] [2022-02-09 00:32:17,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:32:17,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:32:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:32:18,417 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:32:18,417 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:32:18,417 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397370490] [2022-02-09 00:32:18,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397370490] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:32:18,417 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:32:18,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-09 00:32:18,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165710119] [2022-02-09 00:32:18,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:32:18,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 00:32:18,418 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:32:18,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 00:32:18,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2022-02-09 00:32:18,418 INFO L87 Difference]: Start difference. First operand 39800 states and 111219 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:24,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:32:24,827 INFO L93 Difference]: Finished difference Result 54622 states and 151330 transitions. [2022-02-09 00:32:24,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-02-09 00:32:24,827 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:32:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:32:24,949 INFO L225 Difference]: With dead ends: 54622 [2022-02-09 00:32:24,949 INFO L226 Difference]: Without dead ends: 54622 [2022-02-09 00:32:24,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5664 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=4234, Invalid=14948, Unknown=0, NotChecked=0, Total=19182 [2022-02-09 00:32:24,951 INFO L933 BasicCegarLoop]: 672 mSDtfsCounter, 2238 mSDsluCounter, 7887 mSDsCounter, 0 mSdLazyCounter, 2993 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 8407 SdHoareTripleChecker+Invalid, 3006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:32:24,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2238 Valid, 8407 Invalid, 3006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2993 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-02-09 00:32:25,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54622 states. [2022-02-09 00:32:25,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54622 to 39796. [2022-02-09 00:32:25,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39796 states, 39795 states have (on average 2.7943208945847466) internal successors, (111200), 39795 states have internal predecessors, (111200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:25,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39796 states to 39796 states and 111200 transitions. [2022-02-09 00:32:25,858 INFO L78 Accepts]: Start accepts. Automaton has 39796 states and 111200 transitions. Word has length 231 [2022-02-09 00:32:25,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:32:25,858 INFO L470 AbstractCegarLoop]: Abstraction has 39796 states and 111200 transitions. [2022-02-09 00:32:25,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:25,858 INFO L276 IsEmpty]: Start isEmpty. Operand 39796 states and 111200 transitions. [2022-02-09 00:32:25,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:32:25,899 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:32:25,899 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:32:25,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-02-09 00:32:25,899 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:32:25,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:32:25,900 INFO L85 PathProgramCache]: Analyzing trace with hash 956737534, now seen corresponding path program 17 times [2022-02-09 00:32:25,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:32:25,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027457284] [2022-02-09 00:32:25,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:32:25,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:32:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:32:26,633 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:32:26,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:32:26,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027457284] [2022-02-09 00:32:26,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027457284] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:32:26,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:32:26,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-09 00:32:26,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550807804] [2022-02-09 00:32:26,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:32:26,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-09 00:32:26,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:32:26,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-09 00:32:26,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2022-02-09 00:32:26,635 INFO L87 Difference]: Start difference. First operand 39796 states and 111200 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:29,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:32:29,047 INFO L93 Difference]: Finished difference Result 51652 states and 143229 transitions. [2022-02-09 00:32:29,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 00:32:29,047 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:32:29,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:32:29,299 INFO L225 Difference]: With dead ends: 51652 [2022-02-09 00:32:29,299 INFO L226 Difference]: Without dead ends: 51652 [2022-02-09 00:32:29,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=971, Invalid=3189, Unknown=0, NotChecked=0, Total=4160 [2022-02-09 00:32:29,300 INFO L933 BasicCegarLoop]: 418 mSDtfsCounter, 1871 mSDsluCounter, 4930 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 5261 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:32:29,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1871 Valid, 5261 Invalid, 1606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1596 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 00:32:29,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51652 states. [2022-02-09 00:32:29,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51652 to 39792. [2022-02-09 00:32:29,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39792 states, 39791 states have (on average 2.7942248247091053) internal successors, (111185), 39791 states have internal predecessors, (111185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:30,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39792 states to 39792 states and 111185 transitions. [2022-02-09 00:32:30,199 INFO L78 Accepts]: Start accepts. Automaton has 39792 states and 111185 transitions. Word has length 231 [2022-02-09 00:32:30,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:32:30,199 INFO L470 AbstractCegarLoop]: Abstraction has 39792 states and 111185 transitions. [2022-02-09 00:32:30,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:30,199 INFO L276 IsEmpty]: Start isEmpty. Operand 39792 states and 111185 transitions. [2022-02-09 00:32:30,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:32:30,241 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:32:30,241 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:32:30,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-02-09 00:32:30,242 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:32:30,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:32:30,242 INFO L85 PathProgramCache]: Analyzing trace with hash 245365692, now seen corresponding path program 18 times [2022-02-09 00:32:30,242 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:32:30,242 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713148816] [2022-02-09 00:32:30,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:32:30,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:32:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:32:30,779 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:32:30,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:32:30,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713148816] [2022-02-09 00:32:30,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713148816] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:32:30,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:32:30,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:32:30,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812627139] [2022-02-09 00:32:30,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:32:30,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:32:30,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:32:30,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:32:30,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:32:30,780 INFO L87 Difference]: Start difference. First operand 39792 states and 111185 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:36,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:32:36,539 INFO L93 Difference]: Finished difference Result 62322 states and 172096 transitions. [2022-02-09 00:32:36,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-09 00:32:36,539 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:32:36,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:32:36,674 INFO L225 Difference]: With dead ends: 62322 [2022-02-09 00:32:36,674 INFO L226 Difference]: Without dead ends: 61673 [2022-02-09 00:32:36,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5769 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=4019, Invalid=16287, Unknown=0, NotChecked=0, Total=20306 [2022-02-09 00:32:36,675 INFO L933 BasicCegarLoop]: 755 mSDtfsCounter, 2604 mSDsluCounter, 10142 mSDsCounter, 0 mSdLazyCounter, 3576 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2604 SdHoareTripleChecker+Valid, 10658 SdHoareTripleChecker+Invalid, 3591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:32:36,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2604 Valid, 10658 Invalid, 3591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3576 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-09 00:32:36,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61673 states. [2022-02-09 00:32:37,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61673 to 40464. [2022-02-09 00:32:37,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40464 states, 40463 states have (on average 2.796357165805798) internal successors, (113149), 40463 states have internal predecessors, (113149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40464 states to 40464 states and 113149 transitions. [2022-02-09 00:32:37,680 INFO L78 Accepts]: Start accepts. Automaton has 40464 states and 113149 transitions. Word has length 231 [2022-02-09 00:32:37,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:32:37,681 INFO L470 AbstractCegarLoop]: Abstraction has 40464 states and 113149 transitions. [2022-02-09 00:32:37,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 40464 states and 113149 transitions. [2022-02-09 00:32:37,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:32:37,725 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:32:37,725 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:32:37,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-02-09 00:32:37,725 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:32:37,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:32:37,726 INFO L85 PathProgramCache]: Analyzing trace with hash 933215832, now seen corresponding path program 19 times [2022-02-09 00:32:37,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:32:37,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862657177] [2022-02-09 00:32:37,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:32:37,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:32:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:32:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:32:38,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:32:38,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862657177] [2022-02-09 00:32:38,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862657177] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:32:38,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:32:38,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-09 00:32:38,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067137549] [2022-02-09 00:32:38,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:32:38,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-09 00:32:38,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:32:38,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-09 00:32:38,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2022-02-09 00:32:38,328 INFO L87 Difference]: Start difference. First operand 40464 states and 113149 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:44,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:32:44,877 INFO L93 Difference]: Finished difference Result 80484 states and 221756 transitions. [2022-02-09 00:32:44,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-02-09 00:32:44,877 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:32:44,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:32:45,093 INFO L225 Difference]: With dead ends: 80484 [2022-02-09 00:32:45,093 INFO L226 Difference]: Without dead ends: 80484 [2022-02-09 00:32:45,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6554 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=4399, Invalid=17951, Unknown=0, NotChecked=0, Total=22350 [2022-02-09 00:32:45,094 INFO L933 BasicCegarLoop]: 716 mSDtfsCounter, 2703 mSDsluCounter, 9360 mSDsCounter, 0 mSdLazyCounter, 3619 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 9902 SdHoareTripleChecker+Invalid, 3646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:32:45,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2703 Valid, 9902 Invalid, 3646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3619 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 00:32:45,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80484 states. [2022-02-09 00:32:46,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80484 to 40472. [2022-02-09 00:32:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40472 states, 40471 states have (on average 2.7966445108843367) internal successors, (113183), 40471 states have internal predecessors, (113183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:46,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40472 states to 40472 states and 113183 transitions. [2022-02-09 00:32:46,263 INFO L78 Accepts]: Start accepts. Automaton has 40472 states and 113183 transitions. Word has length 231 [2022-02-09 00:32:46,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:32:46,263 INFO L470 AbstractCegarLoop]: Abstraction has 40472 states and 113183 transitions. [2022-02-09 00:32:46,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:46,264 INFO L276 IsEmpty]: Start isEmpty. Operand 40472 states and 113183 transitions. [2022-02-09 00:32:46,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:32:46,308 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:32:46,309 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:32:46,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-02-09 00:32:46,309 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:32:46,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:32:46,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1541447410, now seen corresponding path program 20 times [2022-02-09 00:32:46,310 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:32:46,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094417702] [2022-02-09 00:32:46,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:32:46,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:32:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:32:46,780 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:32:46,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:32:46,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094417702] [2022-02-09 00:32:46,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094417702] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:32:46,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:32:46,780 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:32:46,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323836990] [2022-02-09 00:32:46,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:32:46,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:32:46,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:32:46,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:32:46,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:32:46,781 INFO L87 Difference]: Start difference. First operand 40472 states and 113183 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:52,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:32:52,207 INFO L93 Difference]: Finished difference Result 63265 states and 175101 transitions. [2022-02-09 00:32:52,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-02-09 00:32:52,207 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:32:52,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:32:52,350 INFO L225 Difference]: With dead ends: 63265 [2022-02-09 00:32:52,350 INFO L226 Difference]: Without dead ends: 63265 [2022-02-09 00:32:52,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5308 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=4087, Invalid=14819, Unknown=0, NotChecked=0, Total=18906 [2022-02-09 00:32:52,351 INFO L933 BasicCegarLoop]: 666 mSDtfsCounter, 2434 mSDsluCounter, 8483 mSDsCounter, 0 mSdLazyCounter, 3087 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 8980 SdHoareTripleChecker+Invalid, 3099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:32:52,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2434 Valid, 8980 Invalid, 3099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3087 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-09 00:32:52,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63265 states. [2022-02-09 00:32:53,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63265 to 40468. [2022-02-09 00:32:53,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40468 states, 40467 states have (on average 2.7964514295598883) internal successors, (113164), 40467 states have internal predecessors, (113164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:53,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40468 states to 40468 states and 113164 transitions. [2022-02-09 00:32:53,377 INFO L78 Accepts]: Start accepts. Automaton has 40468 states and 113164 transitions. Word has length 231 [2022-02-09 00:32:53,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:32:53,377 INFO L470 AbstractCegarLoop]: Abstraction has 40468 states and 113164 transitions. [2022-02-09 00:32:53,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:32:53,377 INFO L276 IsEmpty]: Start isEmpty. Operand 40468 states and 113164 transitions. [2022-02-09 00:32:53,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:32:53,418 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:32:53,419 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:32:53,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-02-09 00:32:53,419 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:32:53,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:32:53,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1295335422, now seen corresponding path program 21 times [2022-02-09 00:32:53,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:32:53,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558572642] [2022-02-09 00:32:53,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:32:53,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:32:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:32:53,995 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:32:53,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:32:53,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558572642] [2022-02-09 00:32:53,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558572642] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:32:53,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:32:53,996 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:32:53,996 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107656243] [2022-02-09 00:32:53,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:32:53,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:32:53,996 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:32:53,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:32:53,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:32:53,997 INFO L87 Difference]: Start difference. First operand 40468 states and 113164 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:00,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:33:00,256 INFO L93 Difference]: Finished difference Result 63544 states and 175756 transitions. [2022-02-09 00:33:00,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-02-09 00:33:00,256 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:33:00,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:33:00,399 INFO L225 Difference]: With dead ends: 63544 [2022-02-09 00:33:00,399 INFO L226 Difference]: Without dead ends: 63544 [2022-02-09 00:33:00,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7396 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=5246, Invalid=19246, Unknown=0, NotChecked=0, Total=24492 [2022-02-09 00:33:00,400 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 2572 mSDsluCounter, 9108 mSDsCounter, 0 mSdLazyCounter, 3341 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 9617 SdHoareTripleChecker+Invalid, 3353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:33:00,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2572 Valid, 9617 Invalid, 3353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3341 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 00:33:00,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63544 states. [2022-02-09 00:33:01,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63544 to 40416. [2022-02-09 00:33:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40416 states, 40415 states have (on average 2.7960163305703327) internal successors, (113001), 40415 states have internal predecessors, (113001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:01,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40416 states to 40416 states and 113001 transitions. [2022-02-09 00:33:01,443 INFO L78 Accepts]: Start accepts. Automaton has 40416 states and 113001 transitions. Word has length 231 [2022-02-09 00:33:01,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:33:01,443 INFO L470 AbstractCegarLoop]: Abstraction has 40416 states and 113001 transitions. [2022-02-09 00:33:01,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:01,444 INFO L276 IsEmpty]: Start isEmpty. Operand 40416 states and 113001 transitions. [2022-02-09 00:33:01,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:33:01,486 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:33:01,486 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:33:01,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-02-09 00:33:01,486 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:33:01,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:33:01,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1209742604, now seen corresponding path program 22 times [2022-02-09 00:33:01,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:33:01,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535035682] [2022-02-09 00:33:01,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:33:01,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:33:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:33:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:33:02,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:33:02,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535035682] [2022-02-09 00:33:02,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535035682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:33:02,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:33:02,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:33:02,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40675542] [2022-02-09 00:33:02,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:33:02,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:33:02,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:33:02,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:33:02,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:33:02,043 INFO L87 Difference]: Start difference. First operand 40416 states and 113001 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:09,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:33:09,239 INFO L93 Difference]: Finished difference Result 75697 states and 208811 transitions. [2022-02-09 00:33:09,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-02-09 00:33:09,239 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:33:09,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:33:09,410 INFO L225 Difference]: With dead ends: 75697 [2022-02-09 00:33:09,410 INFO L226 Difference]: Without dead ends: 75169 [2022-02-09 00:33:09,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8058 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=5317, Invalid=19805, Unknown=0, NotChecked=0, Total=25122 [2022-02-09 00:33:09,412 INFO L933 BasicCegarLoop]: 619 mSDtfsCounter, 2623 mSDsluCounter, 7254 mSDsCounter, 0 mSdLazyCounter, 2897 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2623 SdHoareTripleChecker+Valid, 7725 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:33:09,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2623 Valid, 7725 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2897 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-09 00:33:09,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75169 states. [2022-02-09 00:33:10,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75169 to 40440. [2022-02-09 00:33:10,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40440 states, 40439 states have (on average 2.7960879349143153) internal successors, (113071), 40439 states have internal predecessors, (113071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:10,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40440 states to 40440 states and 113071 transitions. [2022-02-09 00:33:10,545 INFO L78 Accepts]: Start accepts. Automaton has 40440 states and 113071 transitions. Word has length 231 [2022-02-09 00:33:10,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:33:10,546 INFO L470 AbstractCegarLoop]: Abstraction has 40440 states and 113071 transitions. [2022-02-09 00:33:10,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:10,546 INFO L276 IsEmpty]: Start isEmpty. Operand 40440 states and 113071 transitions. [2022-02-09 00:33:10,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:33:10,590 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:33:10,590 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:33:10,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-02-09 00:33:10,590 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:33:10,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:33:10,590 INFO L85 PathProgramCache]: Analyzing trace with hash 62217422, now seen corresponding path program 23 times [2022-02-09 00:33:10,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:33:10,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472801707] [2022-02-09 00:33:10,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:33:10,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:33:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:33:11,317 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:33:11,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:33:11,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472801707] [2022-02-09 00:33:11,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472801707] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:33:11,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:33:11,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:33:11,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852412594] [2022-02-09 00:33:11,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:33:11,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:33:11,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:33:11,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:33:11,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:33:11,318 INFO L87 Difference]: Start difference. First operand 40440 states and 113071 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:19,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:33:19,355 INFO L93 Difference]: Finished difference Result 87139 states and 240635 transitions. [2022-02-09 00:33:19,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-02-09 00:33:19,355 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:33:19,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:33:19,560 INFO L225 Difference]: With dead ends: 87139 [2022-02-09 00:33:19,560 INFO L226 Difference]: Without dead ends: 86586 [2022-02-09 00:33:19,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11083 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=6904, Invalid=25316, Unknown=0, NotChecked=0, Total=32220 [2022-02-09 00:33:19,561 INFO L933 BasicCegarLoop]: 584 mSDtfsCounter, 2855 mSDsluCounter, 7438 mSDsCounter, 0 mSdLazyCounter, 3117 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2855 SdHoareTripleChecker+Valid, 7891 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 3117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:33:19,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2855 Valid, 7891 Invalid, 3152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 3117 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 00:33:19,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86586 states. [2022-02-09 00:33:20,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86586 to 40496. [2022-02-09 00:33:20,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40496 states, 40495 states have (on average 2.7960242005185827) internal successors, (113225), 40495 states have internal predecessors, (113225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40496 states to 40496 states and 113225 transitions. [2022-02-09 00:33:20,774 INFO L78 Accepts]: Start accepts. Automaton has 40496 states and 113225 transitions. Word has length 231 [2022-02-09 00:33:20,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:33:20,774 INFO L470 AbstractCegarLoop]: Abstraction has 40496 states and 113225 transitions. [2022-02-09 00:33:20,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:20,774 INFO L276 IsEmpty]: Start isEmpty. Operand 40496 states and 113225 transitions. [2022-02-09 00:33:20,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:33:20,817 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:33:20,817 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:33:20,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-02-09 00:33:20,818 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:33:20,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:33:20,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1866716852, now seen corresponding path program 24 times [2022-02-09 00:33:20,819 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:33:20,819 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552996686] [2022-02-09 00:33:20,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:33:20,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:33:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:33:21,674 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:33:21,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:33:21,674 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552996686] [2022-02-09 00:33:21,674 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552996686] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:33:21,674 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:33:21,674 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-09 00:33:21,674 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742139960] [2022-02-09 00:33:21,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:33:21,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-09 00:33:21,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:33:21,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-09 00:33:21,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-02-09 00:33:21,675 INFO L87 Difference]: Start difference. First operand 40496 states and 113225 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:28,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:33:28,674 INFO L93 Difference]: Finished difference Result 88670 states and 246537 transitions. [2022-02-09 00:33:28,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-02-09 00:33:28,674 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:33:28,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:33:28,903 INFO L225 Difference]: With dead ends: 88670 [2022-02-09 00:33:28,903 INFO L226 Difference]: Without dead ends: 88670 [2022-02-09 00:33:28,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5580 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=4136, Invalid=15324, Unknown=0, NotChecked=0, Total=19460 [2022-02-09 00:33:28,904 INFO L933 BasicCegarLoop]: 603 mSDtfsCounter, 2526 mSDsluCounter, 9261 mSDsCounter, 0 mSdLazyCounter, 3825 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 9689 SdHoareTripleChecker+Invalid, 3853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:33:28,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2526 Valid, 9689 Invalid, 3853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3825 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-09 00:33:29,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88670 states. [2022-02-09 00:33:29,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88670 to 40424. [2022-02-09 00:33:30,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40424 states, 40423 states have (on average 2.79610617717636) internal successors, (113027), 40423 states have internal predecessors, (113027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 113027 transitions. [2022-02-09 00:33:30,303 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 113027 transitions. Word has length 231 [2022-02-09 00:33:30,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:33:30,303 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 113027 transitions. [2022-02-09 00:33:30,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 113027 transitions. [2022-02-09 00:33:30,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:33:30,348 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:33:30,348 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:33:30,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-02-09 00:33:30,348 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:33:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:33:30,348 INFO L85 PathProgramCache]: Analyzing trace with hash 351587410, now seen corresponding path program 25 times [2022-02-09 00:33:30,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:33:30,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376130007] [2022-02-09 00:33:30,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:33:30,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:33:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:33:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:33:30,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:33:30,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376130007] [2022-02-09 00:33:30,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376130007] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:33:30,985 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:33:30,985 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-09 00:33:30,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184726917] [2022-02-09 00:33:30,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:33:30,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-09 00:33:30,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:33:30,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-09 00:33:30,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2022-02-09 00:33:30,986 INFO L87 Difference]: Start difference. First operand 40424 states and 113027 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:38,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:33:38,813 INFO L93 Difference]: Finished difference Result 83368 states and 229967 transitions. [2022-02-09 00:33:38,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-02-09 00:33:38,814 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:33:38,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:33:39,003 INFO L225 Difference]: With dead ends: 83368 [2022-02-09 00:33:39,003 INFO L226 Difference]: Without dead ends: 83368 [2022-02-09 00:33:39,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8870 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=5613, Invalid=22443, Unknown=0, NotChecked=0, Total=28056 [2022-02-09 00:33:39,004 INFO L933 BasicCegarLoop]: 739 mSDtfsCounter, 2449 mSDsluCounter, 10927 mSDsCounter, 0 mSdLazyCounter, 4561 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 11460 SdHoareTripleChecker+Invalid, 4585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 4561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-02-09 00:33:39,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2449 Valid, 11460 Invalid, 4585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 4561 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-09 00:33:39,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83368 states. [2022-02-09 00:33:40,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83368 to 40428. [2022-02-09 00:33:40,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40428 states, 40427 states have (on average 2.7962995028075297) internal successors, (113046), 40427 states have internal predecessors, (113046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:40,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40428 states to 40428 states and 113046 transitions. [2022-02-09 00:33:40,198 INFO L78 Accepts]: Start accepts. Automaton has 40428 states and 113046 transitions. Word has length 231 [2022-02-09 00:33:40,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:33:40,198 INFO L470 AbstractCegarLoop]: Abstraction has 40428 states and 113046 transitions. [2022-02-09 00:33:40,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:40,198 INFO L276 IsEmpty]: Start isEmpty. Operand 40428 states and 113046 transitions. [2022-02-09 00:33:40,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:33:40,240 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:33:40,241 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:33:40,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-02-09 00:33:40,241 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:33:40,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:33:40,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2123075832, now seen corresponding path program 26 times [2022-02-09 00:33:40,241 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:33:40,241 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949947981] [2022-02-09 00:33:40,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:33:40,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:33:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:33:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:33:40,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:33:40,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949947981] [2022-02-09 00:33:40,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949947981] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:33:40,689 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:33:40,689 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-09 00:33:40,689 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285437556] [2022-02-09 00:33:40,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:33:40,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 00:33:40,690 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:33:40,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 00:33:40,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-02-09 00:33:40,690 INFO L87 Difference]: Start difference. First operand 40428 states and 113046 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:47,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:33:47,626 INFO L93 Difference]: Finished difference Result 66188 states and 183375 transitions. [2022-02-09 00:33:47,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2022-02-09 00:33:47,627 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:33:47,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:33:47,769 INFO L225 Difference]: With dead ends: 66188 [2022-02-09 00:33:47,769 INFO L226 Difference]: Without dead ends: 66188 [2022-02-09 00:33:47,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12095 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=6892, Invalid=28640, Unknown=0, NotChecked=0, Total=35532 [2022-02-09 00:33:47,772 INFO L933 BasicCegarLoop]: 673 mSDtfsCounter, 2676 mSDsluCounter, 9096 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 9621 SdHoareTripleChecker+Invalid, 3491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:33:47,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2676 Valid, 9621 Invalid, 3491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3476 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 00:33:47,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66188 states. [2022-02-09 00:33:48,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66188 to 40420. [2022-02-09 00:33:48,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40420 states, 40419 states have (on average 2.7960117766396992) internal successors, (113012), 40419 states have internal predecessors, (113012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:48,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40420 states to 40420 states and 113012 transitions. [2022-02-09 00:33:48,773 INFO L78 Accepts]: Start accepts. Automaton has 40420 states and 113012 transitions. Word has length 231 [2022-02-09 00:33:48,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:33:48,773 INFO L470 AbstractCegarLoop]: Abstraction has 40420 states and 113012 transitions. [2022-02-09 00:33:48,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:48,773 INFO L276 IsEmpty]: Start isEmpty. Operand 40420 states and 113012 transitions. [2022-02-09 00:33:48,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:33:48,817 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:33:48,817 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:33:48,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-02-09 00:33:48,817 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:33:48,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:33:48,817 INFO L85 PathProgramCache]: Analyzing trace with hash -433375326, now seen corresponding path program 27 times [2022-02-09 00:33:48,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:33:48,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274624236] [2022-02-09 00:33:48,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:33:48,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:33:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:33:49,533 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:33:49,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:33:49,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274624236] [2022-02-09 00:33:49,534 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274624236] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:33:49,534 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:33:49,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:33:49,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129607025] [2022-02-09 00:33:49,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:33:49,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:33:49,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:33:49,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:33:49,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:33:49,535 INFO L87 Difference]: Start difference. First operand 40420 states and 113012 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:56,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:33:56,137 INFO L93 Difference]: Finished difference Result 84096 states and 231969 transitions. [2022-02-09 00:33:56,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2022-02-09 00:33:56,138 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:33:56,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:33:56,317 INFO L225 Difference]: With dead ends: 84096 [2022-02-09 00:33:56,317 INFO L226 Difference]: Without dead ends: 84096 [2022-02-09 00:33:56,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10107 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=6257, Invalid=24193, Unknown=0, NotChecked=0, Total=30450 [2022-02-09 00:33:56,319 INFO L933 BasicCegarLoop]: 701 mSDtfsCounter, 2426 mSDsluCounter, 8434 mSDsCounter, 0 mSdLazyCounter, 3394 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 8977 SdHoareTripleChecker+Invalid, 3417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:33:56,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2426 Valid, 8977 Invalid, 3417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3394 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 00:33:56,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84096 states. [2022-02-09 00:33:57,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84096 to 40428. [2022-02-09 00:33:57,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40428 states, 40427 states have (on average 2.7962995028075297) internal successors, (113046), 40427 states have internal predecessors, (113046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:57,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40428 states to 40428 states and 113046 transitions. [2022-02-09 00:33:57,661 INFO L78 Accepts]: Start accepts. Automaton has 40428 states and 113046 transitions. Word has length 231 [2022-02-09 00:33:57,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:33:57,662 INFO L470 AbstractCegarLoop]: Abstraction has 40428 states and 113046 transitions. [2022-02-09 00:33:57,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:33:57,662 INFO L276 IsEmpty]: Start isEmpty. Operand 40428 states and 113046 transitions. [2022-02-09 00:33:57,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:33:57,702 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:33:57,702 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:33:57,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-02-09 00:33:57,703 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:33:57,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:33:57,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1386928728, now seen corresponding path program 28 times [2022-02-09 00:33:57,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:33:57,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926599335] [2022-02-09 00:33:57,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:33:57,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:33:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:33:58,381 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:33:58,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:33:58,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926599335] [2022-02-09 00:33:58,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926599335] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:33:58,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:33:58,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-09 00:33:58,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435351922] [2022-02-09 00:33:58,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:33:58,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 00:33:58,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:33:58,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 00:33:58,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-02-09 00:33:58,383 INFO L87 Difference]: Start difference. First operand 40428 states and 113046 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:04,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:34:04,419 INFO L93 Difference]: Finished difference Result 65693 states and 182026 transitions. [2022-02-09 00:34:04,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-02-09 00:34:04,419 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:34:04,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:34:04,560 INFO L225 Difference]: With dead ends: 65693 [2022-02-09 00:34:04,560 INFO L226 Difference]: Without dead ends: 65693 [2022-02-09 00:34:04,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8306 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=5687, Invalid=20719, Unknown=0, NotChecked=0, Total=26406 [2022-02-09 00:34:04,561 INFO L933 BasicCegarLoop]: 691 mSDtfsCounter, 2285 mSDsluCounter, 9095 mSDsCounter, 0 mSdLazyCounter, 3597 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 9598 SdHoareTripleChecker+Invalid, 3608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:34:04,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2285 Valid, 9598 Invalid, 3608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3597 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 00:34:04,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65693 states. [2022-02-09 00:34:05,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65693 to 40424. [2022-02-09 00:34:05,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40424 states, 40423 states have (on average 2.79610617717636) internal successors, (113027), 40423 states have internal predecessors, (113027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:05,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40424 states to 40424 states and 113027 transitions. [2022-02-09 00:34:05,587 INFO L78 Accepts]: Start accepts. Automaton has 40424 states and 113027 transitions. Word has length 231 [2022-02-09 00:34:05,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:34:05,588 INFO L470 AbstractCegarLoop]: Abstraction has 40424 states and 113027 transitions. [2022-02-09 00:34:05,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:05,588 INFO L276 IsEmpty]: Start isEmpty. Operand 40424 states and 113027 transitions. [2022-02-09 00:34:05,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:34:05,829 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:34:05,829 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:34:05,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-02-09 00:34:05,829 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:34:05,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:34:05,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1633040716, now seen corresponding path program 29 times [2022-02-09 00:34:05,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:34:05,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207135874] [2022-02-09 00:34:05,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:34:05,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:34:05,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:34:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:34:06,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:34:06,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207135874] [2022-02-09 00:34:06,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207135874] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:34:06,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:34:06,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-09 00:34:06,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843958810] [2022-02-09 00:34:06,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:34:06,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-09 00:34:06,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:34:06,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-09 00:34:06,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2022-02-09 00:34:06,306 INFO L87 Difference]: Start difference. First operand 40424 states and 113027 transitions. Second operand has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:08,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:34:08,136 INFO L93 Difference]: Finished difference Result 62439 states and 173016 transitions. [2022-02-09 00:34:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-09 00:34:08,136 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:34:08,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:34:08,267 INFO L225 Difference]: With dead ends: 62439 [2022-02-09 00:34:08,267 INFO L226 Difference]: Without dead ends: 62439 [2022-02-09 00:34:08,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1043, Invalid=3247, Unknown=0, NotChecked=0, Total=4290 [2022-02-09 00:34:08,267 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1790 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 4780 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:34:08,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1790 Valid, 4780 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 00:34:08,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62439 states. [2022-02-09 00:34:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62439 to 40368. [2022-02-09 00:34:09,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40368 states, 40367 states have (on average 2.7959719572918473) internal successors, (112865), 40367 states have internal predecessors, (112865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40368 states to 40368 states and 112865 transitions. [2022-02-09 00:34:09,211 INFO L78 Accepts]: Start accepts. Automaton has 40368 states and 112865 transitions. Word has length 231 [2022-02-09 00:34:09,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:34:09,211 INFO L470 AbstractCegarLoop]: Abstraction has 40368 states and 112865 transitions. [2022-02-09 00:34:09,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.0) internal successors, (175), 25 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:09,212 INFO L276 IsEmpty]: Start isEmpty. Operand 40368 states and 112865 transitions. [2022-02-09 00:34:09,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:34:09,256 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:34:09,256 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:34:09,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-02-09 00:34:09,256 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:34:09,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:34:09,256 INFO L85 PathProgramCache]: Analyzing trace with hash 222172088, now seen corresponding path program 30 times [2022-02-09 00:34:09,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:34:09,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834643708] [2022-02-09 00:34:09,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:34:09,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:34:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:34:09,895 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:34:09,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:34:09,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834643708] [2022-02-09 00:34:09,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834643708] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:34:09,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:34:09,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:34:09,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25239375] [2022-02-09 00:34:09,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:34:09,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:34:09,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:34:09,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:34:09,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:34:09,897 INFO L87 Difference]: Start difference. First operand 40368 states and 112865 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:16,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:34:16,952 INFO L93 Difference]: Finished difference Result 70553 states and 194269 transitions. [2022-02-09 00:34:16,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2022-02-09 00:34:16,952 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:34:16,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:34:17,110 INFO L225 Difference]: With dead ends: 70553 [2022-02-09 00:34:17,111 INFO L226 Difference]: Without dead ends: 70081 [2022-02-09 00:34:17,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8163 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=4981, Invalid=20779, Unknown=0, NotChecked=0, Total=25760 [2022-02-09 00:34:17,112 INFO L933 BasicCegarLoop]: 717 mSDtfsCounter, 3013 mSDsluCounter, 8683 mSDsCounter, 0 mSdLazyCounter, 3415 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 9174 SdHoareTripleChecker+Invalid, 3442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:34:17,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3013 Valid, 9174 Invalid, 3442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3415 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 00:34:17,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70081 states. [2022-02-09 00:34:18,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70081 to 40620. [2022-02-09 00:34:18,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40620 states, 40619 states have (on average 2.797065412737881) internal successors, (113614), 40619 states have internal predecessors, (113614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:18,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40620 states to 40620 states and 113614 transitions. [2022-02-09 00:34:18,261 INFO L78 Accepts]: Start accepts. Automaton has 40620 states and 113614 transitions. Word has length 231 [2022-02-09 00:34:18,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:34:18,261 INFO L470 AbstractCegarLoop]: Abstraction has 40620 states and 113614 transitions. [2022-02-09 00:34:18,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:18,262 INFO L276 IsEmpty]: Start isEmpty. Operand 40620 states and 113614 transitions. [2022-02-09 00:34:18,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:34:18,306 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:34:18,306 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:34:18,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-02-09 00:34:18,306 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:34:18,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:34:18,307 INFO L85 PathProgramCache]: Analyzing trace with hash -925353094, now seen corresponding path program 31 times [2022-02-09 00:34:18,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:34:18,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605572906] [2022-02-09 00:34:18,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:34:18,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:34:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:34:18,912 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:34:18,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:34:18,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605572906] [2022-02-09 00:34:18,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605572906] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:34:18,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:34:18,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:34:18,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818641836] [2022-02-09 00:34:18,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:34:18,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:34:18,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:34:18,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:34:18,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:34:18,914 INFO L87 Difference]: Start difference. First operand 40620 states and 113614 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:25,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:34:25,987 INFO L93 Difference]: Finished difference Result 71863 states and 198126 transitions. [2022-02-09 00:34:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-02-09 00:34:25,987 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:34:25,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:34:26,146 INFO L225 Difference]: With dead ends: 71863 [2022-02-09 00:34:26,147 INFO L226 Difference]: Without dead ends: 71450 [2022-02-09 00:34:26,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8955 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=5281, Invalid=22109, Unknown=0, NotChecked=0, Total=27390 [2022-02-09 00:34:26,148 INFO L933 BasicCegarLoop]: 708 mSDtfsCounter, 2923 mSDsluCounter, 9360 mSDsCounter, 0 mSdLazyCounter, 3916 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2923 SdHoareTripleChecker+Valid, 9852 SdHoareTripleChecker+Invalid, 3943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:34:26,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2923 Valid, 9852 Invalid, 3943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3916 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-09 00:34:26,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71450 states. [2022-02-09 00:34:27,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71450 to 40648. [2022-02-09 00:34:27,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40648 states, 40647 states have (on average 2.7970329913646763) internal successors, (113691), 40647 states have internal predecessors, (113691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:27,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40648 states to 40648 states and 113691 transitions. [2022-02-09 00:34:27,235 INFO L78 Accepts]: Start accepts. Automaton has 40648 states and 113691 transitions. Word has length 231 [2022-02-09 00:34:27,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:34:27,236 INFO L470 AbstractCegarLoop]: Abstraction has 40648 states and 113691 transitions. [2022-02-09 00:34:27,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:27,236 INFO L276 IsEmpty]: Start isEmpty. Operand 40648 states and 113691 transitions. [2022-02-09 00:34:27,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:34:27,280 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:34:27,281 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:34:27,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-02-09 00:34:27,281 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:34:27,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:34:27,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1440679928, now seen corresponding path program 32 times [2022-02-09 00:34:27,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:34:27,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073490608] [2022-02-09 00:34:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:34:27,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:34:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:34:27,821 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:34:27,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:34:27,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073490608] [2022-02-09 00:34:27,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073490608] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:34:27,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:34:27,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-09 00:34:27,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062203690] [2022-02-09 00:34:27,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:34:27,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-09 00:34:27,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:34:27,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-09 00:34:27,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2022-02-09 00:34:27,823 INFO L87 Difference]: Start difference. First operand 40648 states and 113691 transitions. Second operand has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:28,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:34:28,843 INFO L93 Difference]: Finished difference Result 56928 states and 157575 transitions. [2022-02-09 00:34:28,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-09 00:34:28,844 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:34:28,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:34:28,986 INFO L225 Difference]: With dead ends: 56928 [2022-02-09 00:34:28,986 INFO L226 Difference]: Without dead ends: 56928 [2022-02-09 00:34:28,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=444, Invalid=1362, Unknown=0, NotChecked=0, Total=1806 [2022-02-09 00:34:28,987 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 1404 mSDsluCounter, 3729 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 4081 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:34:28,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1404 Valid, 4081 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:34:29,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56928 states. [2022-02-09 00:34:29,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56928 to 41136. [2022-02-09 00:34:29,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.795308131761274) internal successors, (114985), 41135 states have internal predecessors, (114985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:30,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114985 transitions. [2022-02-09 00:34:30,051 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114985 transitions. Word has length 231 [2022-02-09 00:34:30,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:34:30,051 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114985 transitions. [2022-02-09 00:34:30,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.333333333333334) internal successors, (175), 21 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:30,051 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114985 transitions. [2022-02-09 00:34:30,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:34:30,098 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:34:30,099 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:34:30,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-02-09 00:34:30,099 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:34:30,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:34:30,099 INFO L85 PathProgramCache]: Analyzing trace with hash 544713298, now seen corresponding path program 33 times [2022-02-09 00:34:30,100 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:34:30,100 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145804257] [2022-02-09 00:34:30,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:34:30,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:34:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:34:30,784 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:34:30,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:34:30,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145804257] [2022-02-09 00:34:30,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145804257] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:34:30,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:34:30,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-09 00:34:30,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839580600] [2022-02-09 00:34:30,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:34:30,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-09 00:34:30,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:34:30,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-09 00:34:30,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=736, Unknown=0, NotChecked=0, Total=812 [2022-02-09 00:34:30,785 INFO L87 Difference]: Start difference. First operand 41136 states and 114985 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:40,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:34:40,194 INFO L93 Difference]: Finished difference Result 71693 states and 197524 transitions. [2022-02-09 00:34:40,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-02-09 00:34:40,195 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:34:40,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:34:40,356 INFO L225 Difference]: With dead ends: 71693 [2022-02-09 00:34:40,356 INFO L226 Difference]: Without dead ends: 71221 [2022-02-09 00:34:40,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10593 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=6540, Invalid=26402, Unknown=0, NotChecked=0, Total=32942 [2022-02-09 00:34:40,358 INFO L933 BasicCegarLoop]: 770 mSDtfsCounter, 2633 mSDsluCounter, 10881 mSDsCounter, 0 mSdLazyCounter, 4579 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2633 SdHoareTripleChecker+Valid, 11387 SdHoareTripleChecker+Invalid, 4602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 4579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:34:40,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2633 Valid, 11387 Invalid, 4602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 4579 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-02-09 00:34:40,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71221 states. [2022-02-09 00:34:41,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71221 to 41156. [2022-02-09 00:34:41,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41156 states, 41155 states have (on average 2.7953833070100838) internal successors, (115044), 41155 states have internal predecessors, (115044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:41,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41156 states to 41156 states and 115044 transitions. [2022-02-09 00:34:41,536 INFO L78 Accepts]: Start accepts. Automaton has 41156 states and 115044 transitions. Word has length 231 [2022-02-09 00:34:41,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:34:41,536 INFO L470 AbstractCegarLoop]: Abstraction has 41156 states and 115044 transitions. [2022-02-09 00:34:41,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:41,536 INFO L276 IsEmpty]: Start isEmpty. Operand 41156 states and 115044 transitions. [2022-02-09 00:34:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:34:41,584 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:34:41,584 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:34:41,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-02-09 00:34:41,584 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:34:41,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:34:41,585 INFO L85 PathProgramCache]: Analyzing trace with hash -602811884, now seen corresponding path program 34 times [2022-02-09 00:34:41,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:34:41,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819501511] [2022-02-09 00:34:41,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:34:41,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:34:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:34:42,285 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:34:42,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:34:42,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819501511] [2022-02-09 00:34:42,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819501511] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:34:42,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:34:42,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:34:42,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637040626] [2022-02-09 00:34:42,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:34:42,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:34:42,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:34:42,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:34:42,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:34:42,286 INFO L87 Difference]: Start difference. First operand 41156 states and 115044 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:50,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:34:50,483 INFO L93 Difference]: Finished difference Result 72976 states and 201312 transitions. [2022-02-09 00:34:50,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-02-09 00:34:50,483 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:34:50,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:34:50,648 INFO L225 Difference]: With dead ends: 72976 [2022-02-09 00:34:50,649 INFO L226 Difference]: Without dead ends: 72451 [2022-02-09 00:34:50,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9543 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=6155, Invalid=22915, Unknown=0, NotChecked=0, Total=29070 [2022-02-09 00:34:50,651 INFO L933 BasicCegarLoop]: 641 mSDtfsCounter, 2558 mSDsluCounter, 9394 mSDsCounter, 0 mSdLazyCounter, 3959 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 9837 SdHoareTripleChecker+Invalid, 3982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 3959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:34:50,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2558 Valid, 9837 Invalid, 3982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 3959 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-02-09 00:34:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72451 states. [2022-02-09 00:34:51,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72451 to 41212. [2022-02-09 00:34:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41212 states, 41211 states have (on average 2.7953216374269005) internal successors, (115198), 41211 states have internal predecessors, (115198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:51,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41212 states to 41212 states and 115198 transitions. [2022-02-09 00:34:51,902 INFO L78 Accepts]: Start accepts. Automaton has 41212 states and 115198 transitions. Word has length 231 [2022-02-09 00:34:51,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:34:51,902 INFO L470 AbstractCegarLoop]: Abstraction has 41212 states and 115198 transitions. [2022-02-09 00:34:51,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:34:51,902 INFO L276 IsEmpty]: Start isEmpty. Operand 41212 states and 115198 transitions. [2022-02-09 00:34:51,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:34:51,945 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:34:51,945 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:34:51,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-02-09 00:34:51,945 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:34:51,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:34:51,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1763221138, now seen corresponding path program 35 times [2022-02-09 00:34:51,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:34:51,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121163380] [2022-02-09 00:34:51,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:34:51,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:34:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:34:52,552 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:34:52,553 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:34:52,553 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121163380] [2022-02-09 00:34:52,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121163380] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:34:52,553 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:34:52,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-09 00:34:52,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733345528] [2022-02-09 00:34:52,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:34:52,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-09 00:34:52,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:34:52,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-09 00:34:52,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-02-09 00:34:52,554 INFO L87 Difference]: Start difference. First operand 41212 states and 115198 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:00,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:35:00,385 INFO L93 Difference]: Finished difference Result 84422 states and 234555 transitions. [2022-02-09 00:35:00,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-02-09 00:35:00,386 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:35:00,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:35:00,588 INFO L225 Difference]: With dead ends: 84422 [2022-02-09 00:35:00,588 INFO L226 Difference]: Without dead ends: 84422 [2022-02-09 00:35:00,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6207 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=4546, Invalid=17210, Unknown=0, NotChecked=0, Total=21756 [2022-02-09 00:35:00,590 INFO L933 BasicCegarLoop]: 684 mSDtfsCounter, 2616 mSDsluCounter, 9717 mSDsCounter, 0 mSdLazyCounter, 4095 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2616 SdHoareTripleChecker+Valid, 10178 SdHoareTripleChecker+Invalid, 4116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 4095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:35:00,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2616 Valid, 10178 Invalid, 4116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 4095 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-09 00:35:00,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84422 states. [2022-02-09 00:35:01,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84422 to 41140. [2022-02-09 00:35:01,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.795400957728676) internal successors, (115000), 41139 states have internal predecessors, (115000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:01,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 115000 transitions. [2022-02-09 00:35:01,969 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 115000 transitions. Word has length 231 [2022-02-09 00:35:01,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:35:01,969 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 115000 transitions. [2022-02-09 00:35:01,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:01,969 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 115000 transitions. [2022-02-09 00:35:02,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:35:02,016 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:35:02,016 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:35:02,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-02-09 00:35:02,016 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:35:02,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:35:02,017 INFO L85 PathProgramCache]: Analyzing trace with hash -313441896, now seen corresponding path program 36 times [2022-02-09 00:35:02,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:35:02,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034903143] [2022-02-09 00:35:02,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:35:02,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:35:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:35:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:35:02,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:35:02,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034903143] [2022-02-09 00:35:02,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034903143] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:35:02,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:35:02,503 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:35:02,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583824625] [2022-02-09 00:35:02,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:35:02,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:35:02,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:35:02,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:35:02,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:35:02,504 INFO L87 Difference]: Start difference. First operand 41140 states and 115000 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:08,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:35:08,333 INFO L93 Difference]: Finished difference Result 77008 states and 212001 transitions. [2022-02-09 00:35:08,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-09 00:35:08,333 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:35:08,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:35:08,530 INFO L225 Difference]: With dead ends: 77008 [2022-02-09 00:35:08,530 INFO L226 Difference]: Without dead ends: 77008 [2022-02-09 00:35:08,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6044 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=4174, Invalid=16418, Unknown=0, NotChecked=0, Total=20592 [2022-02-09 00:35:08,531 INFO L933 BasicCegarLoop]: 705 mSDtfsCounter, 2409 mSDsluCounter, 8882 mSDsCounter, 0 mSdLazyCounter, 3675 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2409 SdHoareTripleChecker+Valid, 9366 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:35:08,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2409 Valid, 9366 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3675 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 00:35:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77008 states. [2022-02-09 00:35:09,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77008 to 41144. [2022-02-09 00:35:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.7955909875312934) internal successors, (115019), 41143 states have internal predecessors, (115019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:09,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 115019 transitions. [2022-02-09 00:35:09,684 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 115019 transitions. Word has length 231 [2022-02-09 00:35:09,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:35:09,684 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 115019 transitions. [2022-02-09 00:35:09,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:09,685 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 115019 transitions. [2022-02-09 00:35:09,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:35:09,729 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:35:09,729 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:35:09,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-02-09 00:35:09,729 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:35:09,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:35:09,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1506862158, now seen corresponding path program 37 times [2022-02-09 00:35:09,730 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:35:09,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791744101] [2022-02-09 00:35:09,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:35:09,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:35:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:35:10,374 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:35:10,374 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:35:10,374 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791744101] [2022-02-09 00:35:10,374 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791744101] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:35:10,374 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:35:10,374 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-09 00:35:10,374 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713159482] [2022-02-09 00:35:10,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:35:10,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 00:35:10,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:35:10,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 00:35:10,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2022-02-09 00:35:10,375 INFO L87 Difference]: Start difference. First operand 41144 states and 115019 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:15,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:35:15,110 INFO L93 Difference]: Finished difference Result 59489 states and 164505 transitions. [2022-02-09 00:35:15,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-02-09 00:35:15,110 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:35:15,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:35:15,237 INFO L225 Difference]: With dead ends: 59489 [2022-02-09 00:35:15,237 INFO L226 Difference]: Without dead ends: 59489 [2022-02-09 00:35:15,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3867 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=3406, Invalid=11600, Unknown=0, NotChecked=0, Total=15006 [2022-02-09 00:35:15,238 INFO L933 BasicCegarLoop]: 677 mSDtfsCounter, 2517 mSDsluCounter, 8439 mSDsCounter, 0 mSdLazyCounter, 3319 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 8905 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:35:15,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2517 Valid, 8905 Invalid, 3330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3319 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 00:35:15,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59489 states. [2022-02-09 00:35:16,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59489 to 41136. [2022-02-09 00:35:16,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.795308131761274) internal successors, (114985), 41135 states have internal predecessors, (114985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:16,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114985 transitions. [2022-02-09 00:35:16,278 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114985 transitions. Word has length 231 [2022-02-09 00:35:16,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:35:16,278 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114985 transitions. [2022-02-09 00:35:16,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:16,279 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114985 transitions. [2022-02-09 00:35:16,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:35:16,327 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:35:16,327 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:35:16,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-02-09 00:35:16,328 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:35:16,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:35:16,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1168755266, now seen corresponding path program 38 times [2022-02-09 00:35:16,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:35:16,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804414932] [2022-02-09 00:35:16,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:35:16,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:35:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:35:16,910 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:35:16,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:35:16,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804414932] [2022-02-09 00:35:16,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804414932] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:35:16,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:35:16,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:35:16,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959340439] [2022-02-09 00:35:16,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:35:16,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:35:16,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:35:16,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:35:16,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:35:16,911 INFO L87 Difference]: Start difference. First operand 41136 states and 114985 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:25,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:35:25,415 INFO L93 Difference]: Finished difference Result 72045 states and 198516 transitions. [2022-02-09 00:35:25,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2022-02-09 00:35:25,415 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:35:25,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:35:25,566 INFO L225 Difference]: With dead ends: 72045 [2022-02-09 00:35:25,567 INFO L226 Difference]: Without dead ends: 71573 [2022-02-09 00:35:25,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11594 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=6953, Invalid=27087, Unknown=0, NotChecked=0, Total=34040 [2022-02-09 00:35:25,569 INFO L933 BasicCegarLoop]: 682 mSDtfsCounter, 2425 mSDsluCounter, 9622 mSDsCounter, 0 mSdLazyCounter, 3915 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 10075 SdHoareTripleChecker+Invalid, 3935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:35:25,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2425 Valid, 10075 Invalid, 3935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3915 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-09 00:35:25,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71573 states. [2022-02-09 00:35:26,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71573 to 41160. [2022-02-09 00:35:26,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41160 states, 41159 states have (on average 2.795378896474647) internal successors, (115055), 41159 states have internal predecessors, (115055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:26,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41160 states to 41160 states and 115055 transitions. [2022-02-09 00:35:26,701 INFO L78 Accepts]: Start accepts. Automaton has 41160 states and 115055 transitions. Word has length 231 [2022-02-09 00:35:26,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:35:26,701 INFO L470 AbstractCegarLoop]: Abstraction has 41160 states and 115055 transitions. [2022-02-09 00:35:26,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:26,701 INFO L276 IsEmpty]: Start isEmpty. Operand 41160 states and 115055 transitions. [2022-02-09 00:35:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:35:26,744 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:35:26,744 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:35:26,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-02-09 00:35:26,745 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:35:26,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:35:26,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1978686848, now seen corresponding path program 39 times [2022-02-09 00:35:26,745 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:35:26,745 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144505324] [2022-02-09 00:35:26,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:35:26,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:35:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:35:27,247 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:35:27,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:35:27,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144505324] [2022-02-09 00:35:27,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144505324] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:35:27,248 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:35:27,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:35:27,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324069872] [2022-02-09 00:35:27,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:35:27,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:35:27,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:35:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:35:27,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:35:27,249 INFO L87 Difference]: Start difference. First operand 41160 states and 115055 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:35,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:35:35,741 INFO L93 Difference]: Finished difference Result 73568 states and 202980 transitions. [2022-02-09 00:35:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2022-02-09 00:35:35,742 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:35:35,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:35:35,917 INFO L225 Difference]: With dead ends: 73568 [2022-02-09 00:35:35,917 INFO L226 Difference]: Without dead ends: 73043 [2022-02-09 00:35:35,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13305 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=7813, Invalid=30017, Unknown=0, NotChecked=0, Total=37830 [2022-02-09 00:35:35,920 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 2680 mSDsluCounter, 8355 mSDsCounter, 0 mSdLazyCounter, 3500 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 8808 SdHoareTripleChecker+Invalid, 3525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:35:35,920 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2680 Valid, 8808 Invalid, 3525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3500 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 00:35:36,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73043 states. [2022-02-09 00:35:36,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73043 to 41216. [2022-02-09 00:35:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41216 states, 41215 states have (on average 2.7953172388693437) internal successors, (115209), 41215 states have internal predecessors, (115209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41216 states to 41216 states and 115209 transitions. [2022-02-09 00:35:37,160 INFO L78 Accepts]: Start accepts. Automaton has 41216 states and 115209 transitions. Word has length 231 [2022-02-09 00:35:37,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:35:37,160 INFO L470 AbstractCegarLoop]: Abstraction has 41216 states and 115209 transitions. [2022-02-09 00:35:37,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:37,161 INFO L276 IsEmpty]: Start isEmpty. Operand 41216 states and 115209 transitions. [2022-02-09 00:35:37,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:35:37,212 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:35:37,213 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:35:37,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-02-09 00:35:37,213 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:35:37,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:35:37,213 INFO L85 PathProgramCache]: Analyzing trace with hash 49752574, now seen corresponding path program 40 times [2022-02-09 00:35:37,213 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:35:37,213 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773367191] [2022-02-09 00:35:37,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:35:37,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:35:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:35:37,839 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:35:37,839 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:35:37,839 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773367191] [2022-02-09 00:35:37,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773367191] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:35:37,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:35:37,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-09 00:35:37,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130686195] [2022-02-09 00:35:37,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:35:37,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-09 00:35:37,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:35:37,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-09 00:35:37,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=734, Unknown=0, NotChecked=0, Total=812 [2022-02-09 00:35:37,840 INFO L87 Difference]: Start difference. First operand 41216 states and 115209 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:45,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:35:45,916 INFO L93 Difference]: Finished difference Result 84902 states and 235915 transitions. [2022-02-09 00:35:45,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-02-09 00:35:45,916 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:35:45,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:35:46,113 INFO L225 Difference]: With dead ends: 84902 [2022-02-09 00:35:46,113 INFO L226 Difference]: Without dead ends: 84902 [2022-02-09 00:35:46,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8314 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=5641, Invalid=21419, Unknown=0, NotChecked=0, Total=27060 [2022-02-09 00:35:46,114 INFO L933 BasicCegarLoop]: 664 mSDtfsCounter, 2767 mSDsluCounter, 9245 mSDsCounter, 0 mSdLazyCounter, 3933 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2767 SdHoareTripleChecker+Valid, 9708 SdHoareTripleChecker+Invalid, 3954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 3933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:35:46,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2767 Valid, 9708 Invalid, 3954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 3933 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-09 00:35:46,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84902 states. [2022-02-09 00:35:47,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84902 to 41144. [2022-02-09 00:35:47,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.795396543762001) internal successors, (115011), 41143 states have internal predecessors, (115011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 115011 transitions. [2022-02-09 00:35:47,288 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 115011 transitions. Word has length 231 [2022-02-09 00:35:47,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:35:47,288 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 115011 transitions. [2022-02-09 00:35:47,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 115011 transitions. [2022-02-09 00:35:47,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:35:47,331 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:35:47,331 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:35:47,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-02-09 00:35:47,331 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:35:47,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:35:47,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2026910460, now seen corresponding path program 41 times [2022-02-09 00:35:47,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:35:47,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855667961] [2022-02-09 00:35:47,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:35:47,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:35:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:35:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:35:47,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:35:47,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855667961] [2022-02-09 00:35:47,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855667961] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:35:47,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:35:47,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:35:47,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262991640] [2022-02-09 00:35:47,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:35:47,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:35:47,867 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:35:47,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:35:47,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:35:47,867 INFO L87 Difference]: Start difference. First operand 41144 states and 115011 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:55,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:35:55,339 INFO L93 Difference]: Finished difference Result 79192 states and 218155 transitions. [2022-02-09 00:35:55,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-02-09 00:35:55,340 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:35:55,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:35:55,510 INFO L225 Difference]: With dead ends: 79192 [2022-02-09 00:35:55,510 INFO L226 Difference]: Without dead ends: 79192 [2022-02-09 00:35:55,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10786 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=6530, Invalid=25690, Unknown=0, NotChecked=0, Total=32220 [2022-02-09 00:35:55,513 INFO L933 BasicCegarLoop]: 720 mSDtfsCounter, 2395 mSDsluCounter, 8776 mSDsCounter, 0 mSdLazyCounter, 3674 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 9292 SdHoareTripleChecker+Invalid, 3696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:35:55,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2395 Valid, 9292 Invalid, 3696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3674 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-02-09 00:35:55,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79192 states. [2022-02-09 00:35:56,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79192 to 41148. [2022-02-09 00:35:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41148 states, 41147 states have (on average 2.795586555520451) internal successors, (115030), 41147 states have internal predecessors, (115030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:56,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41148 states to 41148 states and 115030 transitions. [2022-02-09 00:35:56,837 INFO L78 Accepts]: Start accepts. Automaton has 41148 states and 115030 transitions. Word has length 231 [2022-02-09 00:35:56,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:35:56,838 INFO L470 AbstractCegarLoop]: Abstraction has 41148 states and 115030 transitions. [2022-02-09 00:35:56,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:35:56,838 INFO L276 IsEmpty]: Start isEmpty. Operand 41148 states and 115030 transitions. [2022-02-09 00:35:56,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:35:56,879 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:35:56,879 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:35:56,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-02-09 00:35:56,879 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:35:56,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:35:56,880 INFO L85 PathProgramCache]: Analyzing trace with hash -206606406, now seen corresponding path program 42 times [2022-02-09 00:35:56,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:35:56,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319500381] [2022-02-09 00:35:56,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:35:56,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:35:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:35:57,330 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:35:57,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:35:57,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319500381] [2022-02-09 00:35:57,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319500381] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:35:57,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:35:57,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-09 00:35:57,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670610599] [2022-02-09 00:35:57,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:35:57,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 00:35:57,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:35:57,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 00:35:57,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2022-02-09 00:35:57,331 INFO L87 Difference]: Start difference. First operand 41148 states and 115030 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:03,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:03,099 INFO L93 Difference]: Finished difference Result 60865 states and 168413 transitions. [2022-02-09 00:36:03,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-09 00:36:03,099 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:03,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:03,222 INFO L225 Difference]: With dead ends: 60865 [2022-02-09 00:36:03,222 INFO L226 Difference]: Without dead ends: 60865 [2022-02-09 00:36:03,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5751 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4456, Invalid=15566, Unknown=0, NotChecked=0, Total=20022 [2022-02-09 00:36:03,223 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 2361 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 3778 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 9701 SdHoareTripleChecker+Invalid, 3789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:03,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2361 Valid, 9701 Invalid, 3789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3778 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-09 00:36:03,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60865 states. [2022-02-09 00:36:04,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60865 to 41140. [2022-02-09 00:36:04,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.795303726391016) internal successors, (114996), 41139 states have internal predecessors, (114996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:04,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 114996 transitions. [2022-02-09 00:36:04,293 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 114996 transitions. Word has length 231 [2022-02-09 00:36:04,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:04,293 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 114996 transitions. [2022-02-09 00:36:04,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:04,293 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 114996 transitions. [2022-02-09 00:36:04,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:04,347 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:04,347 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:04,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-02-09 00:36:04,347 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:04,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:04,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1483094100, now seen corresponding path program 43 times [2022-02-09 00:36:04,348 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:04,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692151790] [2022-02-09 00:36:04,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:04,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:05,176 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:05,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:05,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692151790] [2022-02-09 00:36:05,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692151790] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:05,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:05,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-09 00:36:05,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549830469] [2022-02-09 00:36:05,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:05,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-09 00:36:05,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:05,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-09 00:36:05,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-02-09 00:36:05,178 INFO L87 Difference]: Start difference. First operand 41140 states and 114996 transitions. Second operand has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:13,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:13,631 INFO L93 Difference]: Finished difference Result 77200 states and 212533 transitions. [2022-02-09 00:36:13,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-02-09 00:36:13,632 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:13,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:13,802 INFO L225 Difference]: With dead ends: 77200 [2022-02-09 00:36:13,802 INFO L226 Difference]: Without dead ends: 77200 [2022-02-09 00:36:13,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10274 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=6317, Invalid=25903, Unknown=0, NotChecked=0, Total=32220 [2022-02-09 00:36:13,804 INFO L933 BasicCegarLoop]: 775 mSDtfsCounter, 2569 mSDsluCounter, 9839 mSDsCounter, 0 mSdLazyCounter, 4265 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2569 SdHoareTripleChecker+Valid, 10395 SdHoareTripleChecker+Invalid, 4288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 4265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:13,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2569 Valid, 10395 Invalid, 4288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 4265 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-02-09 00:36:13,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77200 states. [2022-02-09 00:36:14,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77200 to 41148. [2022-02-09 00:36:14,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41148 states, 41147 states have (on average 2.795586555520451) internal successors, (115030), 41147 states have internal predecessors, (115030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41148 states to 41148 states and 115030 transitions. [2022-02-09 00:36:14,934 INFO L78 Accepts]: Start accepts. Automaton has 41148 states and 115030 transitions. Word has length 231 [2022-02-09 00:36:14,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:14,935 INFO L470 AbstractCegarLoop]: Abstraction has 41148 states and 115030 transitions. [2022-02-09 00:36:14,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 6.0344827586206895) internal successors, (175), 29 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:14,935 INFO L276 IsEmpty]: Start isEmpty. Operand 41148 states and 115030 transitions. [2022-02-09 00:36:14,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:14,980 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:14,981 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:14,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-02-09 00:36:14,981 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:14,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:14,981 INFO L85 PathProgramCache]: Analyzing trace with hash -991569142, now seen corresponding path program 44 times [2022-02-09 00:36:14,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:14,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577392732] [2022-02-09 00:36:14,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:14,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:15,663 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:15,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:15,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577392732] [2022-02-09 00:36:15,663 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577392732] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:15,663 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:15,663 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-09 00:36:15,663 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291072231] [2022-02-09 00:36:15,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:15,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 00:36:15,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:15,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 00:36:15,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2022-02-09 00:36:15,664 INFO L87 Difference]: Start difference. First operand 41148 states and 115030 transitions. Second operand has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:20,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:20,953 INFO L93 Difference]: Finished difference Result 60297 states and 166731 transitions. [2022-02-09 00:36:20,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-02-09 00:36:20,954 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:20,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:21,082 INFO L225 Difference]: With dead ends: 60297 [2022-02-09 00:36:21,082 INFO L226 Difference]: Without dead ends: 60297 [2022-02-09 00:36:21,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4975 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=4048, Invalid=14042, Unknown=0, NotChecked=0, Total=18090 [2022-02-09 00:36:21,083 INFO L933 BasicCegarLoop]: 698 mSDtfsCounter, 2513 mSDsluCounter, 8152 mSDsCounter, 0 mSdLazyCounter, 3281 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2513 SdHoareTripleChecker+Valid, 8652 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:21,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2513 Valid, 8652 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3281 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-09 00:36:21,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60297 states. [2022-02-09 00:36:21,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60297 to 41144. [2022-02-09 00:36:21,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.795396543762001) internal successors, (115011), 41143 states have internal predecessors, (115011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:22,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 115011 transitions. [2022-02-09 00:36:22,037 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 115011 transitions. Word has length 231 [2022-02-09 00:36:22,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:22,037 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 115011 transitions. [2022-02-09 00:36:22,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.481481481481482) internal successors, (175), 27 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:22,037 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 115011 transitions. [2022-02-09 00:36:22,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:22,082 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:22,082 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:22,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-02-09 00:36:22,082 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:22,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:22,082 INFO L85 PathProgramCache]: Analyzing trace with hash -745457154, now seen corresponding path program 45 times [2022-02-09 00:36:22,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:22,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786659768] [2022-02-09 00:36:22,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:22,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:22,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:22,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786659768] [2022-02-09 00:36:22,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786659768] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:22,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:22,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-09 00:36:22,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824094214] [2022-02-09 00:36:22,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:22,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-09 00:36:22,653 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:22,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-09 00:36:22,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2022-02-09 00:36:22,654 INFO L87 Difference]: Start difference. First operand 41144 states and 115011 transitions. Second operand has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:30,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:30,117 INFO L93 Difference]: Finished difference Result 58975 states and 163091 transitions. [2022-02-09 00:36:30,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-02-09 00:36:30,117 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:30,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:30,257 INFO L225 Difference]: With dead ends: 58975 [2022-02-09 00:36:30,257 INFO L226 Difference]: Without dead ends: 58975 [2022-02-09 00:36:30,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7181 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=5265, Invalid=19541, Unknown=0, NotChecked=0, Total=24806 [2022-02-09 00:36:30,258 INFO L933 BasicCegarLoop]: 784 mSDtfsCounter, 2693 mSDsluCounter, 10109 mSDsCounter, 0 mSdLazyCounter, 4153 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2693 SdHoareTripleChecker+Valid, 10624 SdHoareTripleChecker+Invalid, 4165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:30,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2693 Valid, 10624 Invalid, 4165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 4153 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-09 00:36:30,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58975 states. [2022-02-09 00:36:31,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58975 to 41136. [2022-02-09 00:36:31,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.795308131761274) internal successors, (114985), 41135 states have internal predecessors, (114985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:31,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114985 transitions. [2022-02-09 00:36:31,331 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114985 transitions. Word has length 231 [2022-02-09 00:36:31,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:31,331 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114985 transitions. [2022-02-09 00:36:31,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.25) internal successors, (175), 28 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:31,332 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114985 transitions. [2022-02-09 00:36:31,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:31,377 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:31,377 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:31,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-02-09 00:36:31,378 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:31,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:31,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2116950654, now seen corresponding path program 46 times [2022-02-09 00:36:31,378 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:31,378 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964761507] [2022-02-09 00:36:31,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:31,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:31,810 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:31,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:31,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964761507] [2022-02-09 00:36:31,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964761507] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:31,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:31,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:36:31,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084751793] [2022-02-09 00:36:31,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:31,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:36:31,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:31,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:36:31,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:36:31,811 INFO L87 Difference]: Start difference. First operand 41136 states and 114985 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:33,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:33,350 INFO L93 Difference]: Finished difference Result 57294 states and 158607 transitions. [2022-02-09 00:36:33,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-09 00:36:33,351 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:33,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:33,477 INFO L225 Difference]: With dead ends: 57294 [2022-02-09 00:36:33,477 INFO L226 Difference]: Without dead ends: 56645 [2022-02-09 00:36:33,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=605, Invalid=1945, Unknown=0, NotChecked=0, Total=2550 [2022-02-09 00:36:33,478 INFO L933 BasicCegarLoop]: 483 mSDtfsCounter, 1259 mSDsluCounter, 5170 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 5541 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:33,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1259 Valid, 5541 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:36:33,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56645 states. [2022-02-09 00:36:34,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56645 to 41136. [2022-02-09 00:36:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.794432964628662) internal successors, (114949), 41135 states have internal predecessors, (114949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114949 transitions. [2022-02-09 00:36:34,486 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114949 transitions. Word has length 231 [2022-02-09 00:36:34,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:34,486 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114949 transitions. [2022-02-09 00:36:34,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:34,486 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114949 transitions. [2022-02-09 00:36:34,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:34,532 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:34,532 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:34,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-02-09 00:36:34,532 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:34,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:34,533 INFO L85 PathProgramCache]: Analyzing trace with hash -897731330, now seen corresponding path program 47 times [2022-02-09 00:36:34,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:34,533 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018158187] [2022-02-09 00:36:34,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:34,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:34,922 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:34,923 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:34,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018158187] [2022-02-09 00:36:34,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018158187] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:34,923 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:34,923 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:36:34,923 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760988373] [2022-02-09 00:36:34,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:34,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:36:34,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:34,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:36:34,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:36:34,924 INFO L87 Difference]: Start difference. First operand 41136 states and 114949 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:36,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:36,592 INFO L93 Difference]: Finished difference Result 58544 states and 162344 transitions. [2022-02-09 00:36:36,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 00:36:36,592 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:36,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:36,715 INFO L225 Difference]: With dead ends: 58544 [2022-02-09 00:36:36,715 INFO L226 Difference]: Without dead ends: 58544 [2022-02-09 00:36:36,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=724, Invalid=2138, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 00:36:36,715 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1381 mSDsluCounter, 4638 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 5023 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:36,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 5023 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:36:36,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58544 states. [2022-02-09 00:36:37,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58544 to 41144. [2022-02-09 00:36:37,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.794715990569477) internal successors, (114983), 41143 states have internal predecessors, (114983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:37,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 114983 transitions. [2022-02-09 00:36:37,781 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 114983 transitions. Word has length 231 [2022-02-09 00:36:37,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:37,782 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 114983 transitions. [2022-02-09 00:36:37,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:37,782 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 114983 transitions. [2022-02-09 00:36:37,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:37,826 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:37,826 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:37,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-02-09 00:36:37,826 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:37,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:37,827 INFO L85 PathProgramCache]: Analyzing trace with hash 922572724, now seen corresponding path program 48 times [2022-02-09 00:36:37,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:37,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80094232] [2022-02-09 00:36:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:37,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:38,256 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:38,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:38,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80094232] [2022-02-09 00:36:38,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80094232] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:38,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:38,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:36:38,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224171724] [2022-02-09 00:36:38,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:38,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:36:38,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:38,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:36:38,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:36:38,257 INFO L87 Difference]: Start difference. First operand 41144 states and 114983 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:39,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:39,690 INFO L93 Difference]: Finished difference Result 58764 states and 162955 transitions. [2022-02-09 00:36:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 00:36:39,691 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:39,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:39,831 INFO L225 Difference]: With dead ends: 58764 [2022-02-09 00:36:39,831 INFO L226 Difference]: Without dead ends: 58764 [2022-02-09 00:36:39,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=694, Invalid=2062, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 00:36:39,832 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1396 mSDsluCounter, 4037 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 4430 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:39,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1396 Valid, 4430 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 00:36:40,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58764 states. [2022-02-09 00:36:40,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58764 to 41140. [2022-02-09 00:36:40,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.7945258756897347) internal successors, (114964), 41139 states have internal predecessors, (114964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 114964 transitions. [2022-02-09 00:36:40,829 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 114964 transitions. Word has length 231 [2022-02-09 00:36:40,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:40,829 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 114964 transitions. [2022-02-09 00:36:40,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 114964 transitions. [2022-02-09 00:36:40,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:40,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:40,878 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:40,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-02-09 00:36:40,878 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:40,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:40,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1168684712, now seen corresponding path program 49 times [2022-02-09 00:36:40,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:40,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302415448] [2022-02-09 00:36:40,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:40,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:41,462 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:41,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:41,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302415448] [2022-02-09 00:36:41,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302415448] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:41,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:41,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:36:41,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868914411] [2022-02-09 00:36:41,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:41,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:36:41,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:41,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:36:41,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:36:41,464 INFO L87 Difference]: Start difference. First operand 41140 states and 114964 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:42,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:42,965 INFO L93 Difference]: Finished difference Result 59043 states and 163610 transitions. [2022-02-09 00:36:42,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-09 00:36:42,966 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:42,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:43,106 INFO L225 Difference]: With dead ends: 59043 [2022-02-09 00:36:43,107 INFO L226 Difference]: Without dead ends: 59043 [2022-02-09 00:36:43,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=720, Invalid=2142, Unknown=0, NotChecked=0, Total=2862 [2022-02-09 00:36:43,107 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 1392 mSDsluCounter, 4367 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 4761 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:43,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1392 Valid, 4761 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:36:43,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59043 states. [2022-02-09 00:36:43,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59043 to 41088. [2022-02-09 00:36:44,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41088 states, 41087 states have (on average 2.7940954559836446) internal successors, (114801), 41087 states have internal predecessors, (114801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:44,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41088 states to 41088 states and 114801 transitions. [2022-02-09 00:36:44,146 INFO L78 Accepts]: Start accepts. Automaton has 41088 states and 114801 transitions. Word has length 231 [2022-02-09 00:36:44,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:44,146 INFO L470 AbstractCegarLoop]: Abstraction has 41088 states and 114801 transitions. [2022-02-09 00:36:44,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:44,146 INFO L276 IsEmpty]: Start isEmpty. Operand 41088 states and 114801 transitions. [2022-02-09 00:36:44,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:44,332 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:44,332 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:44,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-02-09 00:36:44,333 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:44,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:44,333 INFO L85 PathProgramCache]: Analyzing trace with hash 179518346, now seen corresponding path program 50 times [2022-02-09 00:36:44,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:44,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662956697] [2022-02-09 00:36:44,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:44,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:44,871 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:44,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:44,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662956697] [2022-02-09 00:36:44,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662956697] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:44,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:44,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:36:44,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092483905] [2022-02-09 00:36:44,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:44,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:36:44,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:44,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:36:44,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:36:44,873 INFO L87 Difference]: Start difference. First operand 41088 states and 114801 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:46,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:46,446 INFO L93 Difference]: Finished difference Result 59364 states and 164667 transitions. [2022-02-09 00:36:46,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-09 00:36:46,447 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:46,590 INFO L225 Difference]: With dead ends: 59364 [2022-02-09 00:36:46,590 INFO L226 Difference]: Without dead ends: 59364 [2022-02-09 00:36:46,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=866, Invalid=2556, Unknown=0, NotChecked=0, Total=3422 [2022-02-09 00:36:46,591 INFO L933 BasicCegarLoop]: 435 mSDtfsCounter, 1525 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 4121 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:46,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 4121 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 00:36:46,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59364 states. [2022-02-09 00:36:47,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59364 to 41096. [2022-02-09 00:36:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41096 states, 41095 states have (on average 2.7941842073244922) internal successors, (114827), 41095 states have internal predecessors, (114827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:47,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41096 states to 41096 states and 114827 transitions. [2022-02-09 00:36:47,734 INFO L78 Accepts]: Start accepts. Automaton has 41096 states and 114827 transitions. Word has length 231 [2022-02-09 00:36:47,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:47,735 INFO L470 AbstractCegarLoop]: Abstraction has 41096 states and 114827 transitions. [2022-02-09 00:36:47,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:47,735 INFO L276 IsEmpty]: Start isEmpty. Operand 41096 states and 114827 transitions. [2022-02-09 00:36:47,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:47,783 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:47,783 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:47,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-02-09 00:36:47,783 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:47,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:47,784 INFO L85 PathProgramCache]: Analyzing trace with hash -678636848, now seen corresponding path program 51 times [2022-02-09 00:36:47,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:47,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311296650] [2022-02-09 00:36:47,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:47,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:48,295 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:48,295 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:48,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311296650] [2022-02-09 00:36:48,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311296650] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:48,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:48,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:36:48,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365754657] [2022-02-09 00:36:48,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:48,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:36:48,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:48,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:36:48,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:36:48,297 INFO L87 Difference]: Start difference. First operand 41096 states and 114827 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:49,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:49,867 INFO L93 Difference]: Finished difference Result 60580 states and 168187 transitions. [2022-02-09 00:36:49,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 00:36:49,867 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:49,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:50,004 INFO L225 Difference]: With dead ends: 60580 [2022-02-09 00:36:50,004 INFO L226 Difference]: Without dead ends: 60580 [2022-02-09 00:36:50,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=809, Invalid=2383, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 00:36:50,005 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1204 mSDsluCounter, 3917 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 4309 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:50,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1204 Valid, 4309 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1172 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 00:36:50,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60580 states. [2022-02-09 00:36:50,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60580 to 41100. [2022-02-09 00:36:50,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41100 states, 41099 states have (on average 2.794374558991703) internal successors, (114846), 41099 states have internal predecessors, (114846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:51,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41100 states to 41100 states and 114846 transitions. [2022-02-09 00:36:51,005 INFO L78 Accepts]: Start accepts. Automaton has 41100 states and 114846 transitions. Word has length 231 [2022-02-09 00:36:51,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:51,005 INFO L470 AbstractCegarLoop]: Abstraction has 41100 states and 114846 transitions. [2022-02-09 00:36:51,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:51,005 INFO L276 IsEmpty]: Start isEmpty. Operand 41100 states and 114846 transitions. [2022-02-09 00:36:51,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:51,201 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:51,201 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:51,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-02-09 00:36:51,202 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:51,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:51,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1141667206, now seen corresponding path program 52 times [2022-02-09 00:36:51,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:51,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42828443] [2022-02-09 00:36:51,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:51,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:51,754 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:51,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:51,754 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42828443] [2022-02-09 00:36:51,754 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42828443] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:51,754 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:51,754 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:36:51,754 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413396021] [2022-02-09 00:36:51,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:51,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:36:51,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:51,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:36:51,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:36:51,755 INFO L87 Difference]: Start difference. First operand 41100 states and 114846 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:53,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:53,284 INFO L93 Difference]: Finished difference Result 59748 states and 165853 transitions. [2022-02-09 00:36:53,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 00:36:53,284 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:53,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:53,415 INFO L225 Difference]: With dead ends: 59748 [2022-02-09 00:36:53,416 INFO L226 Difference]: Without dead ends: 59748 [2022-02-09 00:36:53,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=782, Invalid=2298, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 00:36:53,416 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1395 mSDsluCounter, 3781 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1395 SdHoareTripleChecker+Valid, 4158 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:53,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1395 Valid, 4158 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:36:53,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59748 states. [2022-02-09 00:36:54,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59748 to 41092. [2022-02-09 00:36:54,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41092 states, 41091 states have (on average 2.794091163515125) internal successors, (114812), 41091 states have internal predecessors, (114812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:54,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41092 states to 41092 states and 114812 transitions. [2022-02-09 00:36:54,453 INFO L78 Accepts]: Start accepts. Automaton has 41092 states and 114812 transitions. Word has length 231 [2022-02-09 00:36:54,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:54,453 INFO L470 AbstractCegarLoop]: Abstraction has 41092 states and 114812 transitions. [2022-02-09 00:36:54,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:54,453 INFO L276 IsEmpty]: Start isEmpty. Operand 41092 states and 114812 transitions. [2022-02-09 00:36:54,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:54,498 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:54,498 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:54,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-02-09 00:36:54,498 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:54,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:54,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1463599584, now seen corresponding path program 53 times [2022-02-09 00:36:54,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:54,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772344462] [2022-02-09 00:36:54,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:54,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:55,158 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:55,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:55,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772344462] [2022-02-09 00:36:55,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772344462] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:55,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:55,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:36:55,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849188494] [2022-02-09 00:36:55,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:55,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:36:55,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:55,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:36:55,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:36:55,159 INFO L87 Difference]: Start difference. First operand 41092 states and 114812 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:56,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:36:56,815 INFO L93 Difference]: Finished difference Result 61000 states and 169342 transitions. [2022-02-09 00:36:56,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 00:36:56,815 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:36:56,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:36:56,955 INFO L225 Difference]: With dead ends: 61000 [2022-02-09 00:36:56,955 INFO L226 Difference]: Without dead ends: 61000 [2022-02-09 00:36:56,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=810, Invalid=2382, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 00:36:56,956 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 1370 mSDsluCounter, 4290 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 4677 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:36:56,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1370 Valid, 4677 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1247 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:36:57,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61000 states. [2022-02-09 00:36:57,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61000 to 41100. [2022-02-09 00:36:57,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41100 states, 41099 states have (on average 2.794374558991703) internal successors, (114846), 41099 states have internal predecessors, (114846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:58,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41100 states to 41100 states and 114846 transitions. [2022-02-09 00:36:58,022 INFO L78 Accepts]: Start accepts. Automaton has 41100 states and 114846 transitions. Word has length 231 [2022-02-09 00:36:58,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:36:58,023 INFO L470 AbstractCegarLoop]: Abstraction has 41100 states and 114846 transitions. [2022-02-09 00:36:58,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:36:58,023 INFO L276 IsEmpty]: Start isEmpty. Operand 41100 states and 114846 transitions. [2022-02-09 00:36:58,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:36:58,069 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:36:58,069 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:36:58,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-02-09 00:36:58,069 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:36:58,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:36:58,070 INFO L85 PathProgramCache]: Analyzing trace with hash 356704470, now seen corresponding path program 54 times [2022-02-09 00:36:58,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:36:58,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884164190] [2022-02-09 00:36:58,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:36:58,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:36:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:36:58,565 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:36:58,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:36:58,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884164190] [2022-02-09 00:36:58,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884164190] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:36:58,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:36:58,566 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:36:58,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285741814] [2022-02-09 00:36:58,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:36:58,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:36:58,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:36:58,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:36:58,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:36:58,568 INFO L87 Difference]: Start difference. First operand 41100 states and 114846 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:00,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:00,254 INFO L93 Difference]: Finished difference Result 61192 states and 169880 transitions. [2022-02-09 00:37:00,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 00:37:00,255 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:00,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:00,413 INFO L225 Difference]: With dead ends: 61192 [2022-02-09 00:37:00,413 INFO L226 Difference]: Without dead ends: 61192 [2022-02-09 00:37:00,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=783, Invalid=2297, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 00:37:00,414 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1376 mSDsluCounter, 4769 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 5138 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:00,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1376 Valid, 5138 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 00:37:00,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61192 states. [2022-02-09 00:37:01,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61192 to 41096. [2022-02-09 00:37:01,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41096 states, 41095 states have (on average 2.7941842073244922) internal successors, (114827), 41095 states have internal predecessors, (114827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:01,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41096 states to 41096 states and 114827 transitions. [2022-02-09 00:37:01,458 INFO L78 Accepts]: Start accepts. Automaton has 41096 states and 114827 transitions. Word has length 231 [2022-02-09 00:37:01,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:01,459 INFO L470 AbstractCegarLoop]: Abstraction has 41096 states and 114827 transitions. [2022-02-09 00:37:01,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:01,459 INFO L276 IsEmpty]: Start isEmpty. Operand 41096 states and 114827 transitions. [2022-02-09 00:37:01,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:01,505 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:01,506 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:01,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-02-09 00:37:01,506 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:01,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:01,506 INFO L85 PathProgramCache]: Analyzing trace with hash 602816458, now seen corresponding path program 55 times [2022-02-09 00:37:01,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:01,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161893997] [2022-02-09 00:37:01,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:01,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:01,990 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:01,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:01,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161893997] [2022-02-09 00:37:01,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161893997] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:01,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:01,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:01,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186652290] [2022-02-09 00:37:01,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:01,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:01,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:01,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:01,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:01,991 INFO L87 Difference]: Start difference. First operand 41096 states and 114827 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:03,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:03,711 INFO L93 Difference]: Finished difference Result 60031 states and 166459 transitions. [2022-02-09 00:37:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 00:37:03,712 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:03,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:03,838 INFO L225 Difference]: With dead ends: 60031 [2022-02-09 00:37:03,838 INFO L226 Difference]: Without dead ends: 60031 [2022-02-09 00:37:03,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=809, Invalid=2383, Unknown=0, NotChecked=0, Total=3192 [2022-02-09 00:37:03,839 INFO L933 BasicCegarLoop]: 444 mSDtfsCounter, 1408 mSDsluCounter, 3842 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 4222 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:03,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1408 Valid, 4222 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:37:03,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60031 states. [2022-02-09 00:37:04,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60031 to 41040. [2022-02-09 00:37:04,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41040 states, 41039 states have (on average 2.7940495626111748) internal successors, (114665), 41039 states have internal predecessors, (114665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:04,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41040 states to 41040 states and 114665 transitions. [2022-02-09 00:37:04,791 INFO L78 Accepts]: Start accepts. Automaton has 41040 states and 114665 transitions. Word has length 231 [2022-02-09 00:37:04,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:04,791 INFO L470 AbstractCegarLoop]: Abstraction has 41040 states and 114665 transitions. [2022-02-09 00:37:04,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:04,791 INFO L276 IsEmpty]: Start isEmpty. Operand 41040 states and 114665 transitions. [2022-02-09 00:37:04,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:04,832 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:04,832 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:04,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-02-09 00:37:04,832 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:04,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:04,832 INFO L85 PathProgramCache]: Analyzing trace with hash -802389598, now seen corresponding path program 56 times [2022-02-09 00:37:04,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:04,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8664419] [2022-02-09 00:37:04,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:04,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:05,446 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:05,446 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:05,446 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8664419] [2022-02-09 00:37:05,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8664419] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:05,446 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:05,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:05,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350587426] [2022-02-09 00:37:05,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:05,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:05,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:05,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:05,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:05,447 INFO L87 Difference]: Start difference. First operand 41040 states and 114665 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:07,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:07,841 INFO L93 Difference]: Finished difference Result 67772 states and 187297 transitions. [2022-02-09 00:37:07,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-09 00:37:07,842 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:07,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:07,999 INFO L225 Difference]: With dead ends: 67772 [2022-02-09 00:37:07,999 INFO L226 Difference]: Without dead ends: 66980 [2022-02-09 00:37:07,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1464 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1537, Invalid=4943, Unknown=0, NotChecked=0, Total=6480 [2022-02-09 00:37:08,000 INFO L933 BasicCegarLoop]: 553 mSDtfsCounter, 1911 mSDsluCounter, 5009 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:08,000 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1911 Valid, 5470 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 00:37:08,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66980 states. [2022-02-09 00:37:08,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66980 to 41136. [2022-02-09 00:37:08,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.7942384830436366) internal successors, (114941), 41135 states have internal predecessors, (114941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114941 transitions. [2022-02-09 00:37:09,086 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114941 transitions. Word has length 231 [2022-02-09 00:37:09,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:09,087 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114941 transitions. [2022-02-09 00:37:09,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114941 transitions. [2022-02-09 00:37:09,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:09,132 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:09,132 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:09,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-02-09 00:37:09,132 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:09,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:09,132 INFO L85 PathProgramCache]: Analyzing trace with hash -479848388, now seen corresponding path program 57 times [2022-02-09 00:37:09,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:09,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906789097] [2022-02-09 00:37:09,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:09,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:09,705 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:09,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:09,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906789097] [2022-02-09 00:37:09,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906789097] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:09,705 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:09,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:09,705 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937813457] [2022-02-09 00:37:09,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:09,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:09,706 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:09,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:09,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:09,706 INFO L87 Difference]: Start difference. First operand 41136 states and 114941 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:11,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:11,800 INFO L93 Difference]: Finished difference Result 65055 states and 180485 transitions. [2022-02-09 00:37:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-09 00:37:11,800 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:11,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:11,960 INFO L225 Difference]: With dead ends: 65055 [2022-02-09 00:37:11,960 INFO L226 Difference]: Without dead ends: 65055 [2022-02-09 00:37:11,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1077, Invalid=3345, Unknown=0, NotChecked=0, Total=4422 [2022-02-09 00:37:11,961 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 1811 mSDsluCounter, 5489 mSDsCounter, 0 mSdLazyCounter, 1898 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 5904 SdHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:11,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1811 Valid, 5904 Invalid, 1918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1898 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 00:37:12,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65055 states. [2022-02-09 00:37:12,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65055 to 41140. [2022-02-09 00:37:13,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.7943314130144143) internal successors, (114956), 41139 states have internal predecessors, (114956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:13,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 114956 transitions. [2022-02-09 00:37:13,111 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 114956 transitions. Word has length 231 [2022-02-09 00:37:13,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:13,111 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 114956 transitions. [2022-02-09 00:37:13,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:13,111 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 114956 transitions. [2022-02-09 00:37:13,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:13,157 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:13,157 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:13,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-02-09 00:37:13,157 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:13,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:13,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1338003582, now seen corresponding path program 58 times [2022-02-09 00:37:13,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:13,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828270880] [2022-02-09 00:37:13,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:13,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:13,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:13,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:13,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828270880] [2022-02-09 00:37:13,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828270880] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:13,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:13,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:13,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537213447] [2022-02-09 00:37:13,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:13,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:13,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:13,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:13,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:13,585 INFO L87 Difference]: Start difference. First operand 41140 states and 114956 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:15,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:15,510 INFO L93 Difference]: Finished difference Result 64407 states and 178667 transitions. [2022-02-09 00:37:15,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 00:37:15,510 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:15,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:15,661 INFO L225 Difference]: With dead ends: 64407 [2022-02-09 00:37:15,661 INFO L226 Difference]: Without dead ends: 64407 [2022-02-09 00:37:15,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=965, Invalid=2941, Unknown=0, NotChecked=0, Total=3906 [2022-02-09 00:37:15,661 INFO L933 BasicCegarLoop]: 512 mSDtfsCounter, 1700 mSDsluCounter, 4870 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 5287 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:15,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1700 Valid, 5287 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 00:37:15,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64407 states. [2022-02-09 00:37:16,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64407 to 41144. [2022-02-09 00:37:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.7945215468001847) internal successors, (114975), 41143 states have internal predecessors, (114975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:16,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 114975 transitions. [2022-02-09 00:37:16,819 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 114975 transitions. Word has length 231 [2022-02-09 00:37:16,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:16,819 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 114975 transitions. [2022-02-09 00:37:16,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:16,819 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 114975 transitions. [2022-02-09 00:37:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:16,865 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:16,865 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:16,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-02-09 00:37:16,866 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:16,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:16,866 INFO L85 PathProgramCache]: Analyzing trace with hash 482300472, now seen corresponding path program 59 times [2022-02-09 00:37:16,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:16,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073639345] [2022-02-09 00:37:16,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:16,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:17,289 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:17,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:17,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073639345] [2022-02-09 00:37:17,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073639345] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:17,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:17,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:17,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12265728] [2022-02-09 00:37:17,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:17,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:17,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:17,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:17,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:17,290 INFO L87 Difference]: Start difference. First operand 41144 states and 114975 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:19,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:19,394 INFO L93 Difference]: Finished difference Result 63730 states and 176728 transitions. [2022-02-09 00:37:19,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 00:37:19,394 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:19,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:19,551 INFO L225 Difference]: With dead ends: 63730 [2022-02-09 00:37:19,552 INFO L226 Difference]: Without dead ends: 63730 [2022-02-09 00:37:19,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=975, Invalid=2931, Unknown=0, NotChecked=0, Total=3906 [2022-02-09 00:37:19,552 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 1695 mSDsluCounter, 4818 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 5222 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:19,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1695 Valid, 5222 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 00:37:19,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63730 states. [2022-02-09 00:37:20,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63730 to 41132. [2022-02-09 00:37:20,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41132 states, 41131 states have (on average 2.7941455349979334) internal successors, (114926), 41131 states have internal predecessors, (114926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:20,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41132 states to 41132 states and 114926 transitions. [2022-02-09 00:37:20,529 INFO L78 Accepts]: Start accepts. Automaton has 41132 states and 114926 transitions. Word has length 231 [2022-02-09 00:37:20,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:20,529 INFO L470 AbstractCegarLoop]: Abstraction has 41132 states and 114926 transitions. [2022-02-09 00:37:20,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:20,529 INFO L276 IsEmpty]: Start isEmpty. Operand 41132 states and 114926 transitions. [2022-02-09 00:37:20,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:20,737 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:20,737 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:20,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-02-09 00:37:20,737 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:20,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:20,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2101650344, now seen corresponding path program 60 times [2022-02-09 00:37:20,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:20,738 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181375214] [2022-02-09 00:37:20,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:20,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:21,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:21,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181375214] [2022-02-09 00:37:21,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181375214] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:21,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:21,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:21,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851486853] [2022-02-09 00:37:21,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:21,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:21,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:21,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:21,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:21,229 INFO L87 Difference]: Start difference. First operand 41132 states and 114926 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:23,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:23,110 INFO L93 Difference]: Finished difference Result 65475 states and 181640 transitions. [2022-02-09 00:37:23,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-09 00:37:23,110 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:23,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:23,258 INFO L225 Difference]: With dead ends: 65475 [2022-02-09 00:37:23,258 INFO L226 Difference]: Without dead ends: 65475 [2022-02-09 00:37:23,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1015, Invalid=3145, Unknown=0, NotChecked=0, Total=4160 [2022-02-09 00:37:23,258 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1676 mSDsluCounter, 4310 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 4725 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:23,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1676 Valid, 4725 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 00:37:23,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65475 states. [2022-02-09 00:37:24,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65475 to 41140. [2022-02-09 00:37:24,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.7942341816767544) internal successors, (114952), 41139 states have internal predecessors, (114952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:24,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 114952 transitions. [2022-02-09 00:37:24,384 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 114952 transitions. Word has length 231 [2022-02-09 00:37:24,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:24,384 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 114952 transitions. [2022-02-09 00:37:24,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:24,384 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 114952 transitions. [2022-02-09 00:37:24,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:24,432 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:24,432 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:24,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-02-09 00:37:24,432 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:24,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:24,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1243495150, now seen corresponding path program 61 times [2022-02-09 00:37:24,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:24,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516808530] [2022-02-09 00:37:24,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:24,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:24,891 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:24,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:24,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516808530] [2022-02-09 00:37:24,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516808530] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:24,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:24,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:24,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526648027] [2022-02-09 00:37:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:24,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:24,892 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:24,892 INFO L87 Difference]: Start difference. First operand 41140 states and 114952 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:26,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:26,819 INFO L93 Difference]: Finished difference Result 66663 states and 185087 transitions. [2022-02-09 00:37:26,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 00:37:26,819 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:26,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:26,971 INFO L225 Difference]: With dead ends: 66663 [2022-02-09 00:37:26,971 INFO L226 Difference]: Without dead ends: 66663 [2022-02-09 00:37:26,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=963, Invalid=2943, Unknown=0, NotChecked=0, Total=3906 [2022-02-09 00:37:26,972 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 1333 mSDsluCounter, 5146 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 5552 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:26,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1333 Valid, 5552 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-09 00:37:27,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66663 states. [2022-02-09 00:37:27,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66663 to 41144. [2022-02-09 00:37:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.7944243249155383) internal successors, (114971), 41143 states have internal predecessors, (114971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:28,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 114971 transitions. [2022-02-09 00:37:28,062 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 114971 transitions. Word has length 231 [2022-02-09 00:37:28,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:28,063 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 114971 transitions. [2022-02-09 00:37:28,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:28,063 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 114971 transitions. [2022-02-09 00:37:28,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:28,108 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:28,108 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:28,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-02-09 00:37:28,108 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:28,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:28,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1231168092, now seen corresponding path program 62 times [2022-02-09 00:37:28,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:28,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555359974] [2022-02-09 00:37:28,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:28,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:28,703 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:28,704 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:28,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555359974] [2022-02-09 00:37:28,704 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555359974] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:28,704 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:28,704 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:28,704 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334957636] [2022-02-09 00:37:28,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:28,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:28,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:28,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:28,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:28,705 INFO L87 Difference]: Start difference. First operand 41144 states and 114971 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:30,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:30,566 INFO L93 Difference]: Finished difference Result 65986 states and 183148 transitions. [2022-02-09 00:37:30,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 00:37:30,567 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:30,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:30,726 INFO L225 Difference]: With dead ends: 65986 [2022-02-09 00:37:30,727 INFO L226 Difference]: Without dead ends: 65986 [2022-02-09 00:37:30,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=968, Invalid=2938, Unknown=0, NotChecked=0, Total=3906 [2022-02-09 00:37:30,727 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1640 mSDsluCounter, 4392 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1640 SdHoareTripleChecker+Valid, 4792 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:30,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1640 Valid, 4792 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 00:37:30,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65986 states. [2022-02-09 00:37:31,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65986 to 41136. [2022-02-09 00:37:31,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.7941412422511243) internal successors, (114937), 41135 states have internal predecessors, (114937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:31,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114937 transitions. [2022-02-09 00:37:31,929 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114937 transitions. Word has length 231 [2022-02-09 00:37:31,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:31,929 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114937 transitions. [2022-02-09 00:37:31,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:31,929 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114937 transitions. [2022-02-09 00:37:31,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:31,975 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:31,975 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:31,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-02-09 00:37:31,975 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:31,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:31,975 INFO L85 PathProgramCache]: Analyzing trace with hash 458532414, now seen corresponding path program 63 times [2022-02-09 00:37:31,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:31,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82981999] [2022-02-09 00:37:31,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:31,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:32,409 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:32,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:32,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82981999] [2022-02-09 00:37:32,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82981999] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:32,409 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:32,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:32,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915355231] [2022-02-09 00:37:32,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:32,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:32,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:32,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:32,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:32,410 INFO L87 Difference]: Start difference. First operand 41136 states and 114937 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:34,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:34,239 INFO L93 Difference]: Finished difference Result 64775 states and 179671 transitions. [2022-02-09 00:37:34,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 00:37:34,239 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:34,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:34,395 INFO L225 Difference]: With dead ends: 64775 [2022-02-09 00:37:34,395 INFO L226 Difference]: Without dead ends: 64775 [2022-02-09 00:37:34,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=903, Invalid=2757, Unknown=0, NotChecked=0, Total=3660 [2022-02-09 00:37:34,395 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1245 mSDsluCounter, 5220 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 5621 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:34,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1245 Valid, 5621 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 00:37:34,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64775 states. [2022-02-09 00:37:35,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64775 to 41144. [2022-02-09 00:37:35,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41144 states, 41143 states have (on average 2.7944243249155383) internal successors, (114971), 41143 states have internal predecessors, (114971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:35,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41144 states to 41144 states and 114971 transitions. [2022-02-09 00:37:35,552 INFO L78 Accepts]: Start accepts. Automaton has 41144 states and 114971 transitions. Word has length 231 [2022-02-09 00:37:35,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:35,552 INFO L470 AbstractCegarLoop]: Abstraction has 41144 states and 114971 transitions. [2022-02-09 00:37:35,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:35,553 INFO L276 IsEmpty]: Start isEmpty. Operand 41144 states and 114971 transitions. [2022-02-09 00:37:35,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:35,599 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:35,599 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:35,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-02-09 00:37:35,599 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:35,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:35,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2016130828, now seen corresponding path program 64 times [2022-02-09 00:37:35,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:35,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417950427] [2022-02-09 00:37:35,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:35,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:36,044 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:36,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:36,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417950427] [2022-02-09 00:37:36,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417950427] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:36,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:36,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:36,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604580667] [2022-02-09 00:37:36,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:36,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:36,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:36,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:36,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=423, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:36,045 INFO L87 Difference]: Start difference. First operand 41144 states and 114971 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:38,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:38,006 INFO L93 Difference]: Finished difference Result 65122 states and 180604 transitions. [2022-02-09 00:37:38,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-09 00:37:38,007 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:38,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:38,167 INFO L225 Difference]: With dead ends: 65122 [2022-02-09 00:37:38,167 INFO L226 Difference]: Without dead ends: 65122 [2022-02-09 00:37:38,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=908, Invalid=2752, Unknown=0, NotChecked=0, Total=3660 [2022-02-09 00:37:38,168 INFO L933 BasicCegarLoop]: 490 mSDtfsCounter, 1413 mSDsluCounter, 5060 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 5449 SdHoareTripleChecker+Invalid, 1753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:38,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1413 Valid, 5449 Invalid, 1753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 00:37:38,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65122 states. [2022-02-09 00:37:39,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65122 to 41140. [2022-02-09 00:37:39,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41140 states, 41139 states have (on average 2.7942341816767544) internal successors, (114952), 41139 states have internal predecessors, (114952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41140 states to 41140 states and 114952 transitions. [2022-02-09 00:37:39,310 INFO L78 Accepts]: Start accepts. Automaton has 41140 states and 114952 transitions. Word has length 231 [2022-02-09 00:37:39,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:39,310 INFO L470 AbstractCegarLoop]: Abstraction has 41140 states and 114952 transitions. [2022-02-09 00:37:39,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:39,310 INFO L276 IsEmpty]: Start isEmpty. Operand 41140 states and 114952 transitions. [2022-02-09 00:37:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:39,353 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:39,354 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:39,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-02-09 00:37:39,354 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:39,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:39,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1770018840, now seen corresponding path program 65 times [2022-02-09 00:37:39,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:39,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201218070] [2022-02-09 00:37:39,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:39,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:39,821 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:39,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:39,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201218070] [2022-02-09 00:37:39,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201218070] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:39,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:39,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:39,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794734718] [2022-02-09 00:37:39,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:39,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:39,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:39,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:39,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:39,822 INFO L87 Difference]: Start difference. First operand 41140 states and 114952 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:41,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:41,800 INFO L93 Difference]: Finished difference Result 63682 states and 176410 transitions. [2022-02-09 00:37:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-09 00:37:41,800 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:41,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:42,089 INFO L225 Difference]: With dead ends: 63682 [2022-02-09 00:37:42,089 INFO L226 Difference]: Without dead ends: 63682 [2022-02-09 00:37:42,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 709 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=966, Invalid=2940, Unknown=0, NotChecked=0, Total=3906 [2022-02-09 00:37:42,090 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 1502 mSDsluCounter, 5384 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 5768 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:42,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1502 Valid, 5768 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 00:37:42,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63682 states. [2022-02-09 00:37:42,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63682 to 41080. [2022-02-09 00:37:42,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41080 states, 41079 states have (on average 2.794104043428516) internal successors, (114779), 41079 states have internal predecessors, (114779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:43,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41080 states to 41080 states and 114779 transitions. [2022-02-09 00:37:43,033 INFO L78 Accepts]: Start accepts. Automaton has 41080 states and 114779 transitions. Word has length 231 [2022-02-09 00:37:43,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:43,033 INFO L470 AbstractCegarLoop]: Abstraction has 41080 states and 114779 transitions. [2022-02-09 00:37:43,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:43,033 INFO L276 IsEmpty]: Start isEmpty. Operand 41080 states and 114779 transitions. [2022-02-09 00:37:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:43,076 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:43,076 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:43,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-02-09 00:37:43,076 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:43,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:43,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1626076682, now seen corresponding path program 66 times [2022-02-09 00:37:43,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:43,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664577376] [2022-02-09 00:37:43,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:43,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:43,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:43,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664577376] [2022-02-09 00:37:43,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664577376] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:43,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:43,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:43,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186911022] [2022-02-09 00:37:43,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:43,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:43,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:43,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:43,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:43,417 INFO L87 Difference]: Start difference. First operand 41080 states and 114779 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:44,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:44,682 INFO L93 Difference]: Finished difference Result 50083 states and 138999 transitions. [2022-02-09 00:37:44,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-09 00:37:44,683 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:44,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:44,804 INFO L225 Difference]: With dead ends: 50083 [2022-02-09 00:37:44,804 INFO L226 Difference]: Without dead ends: 49411 [2022-02-09 00:37:44,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=492, Invalid=1670, Unknown=0, NotChecked=0, Total=2162 [2022-02-09 00:37:44,805 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 1148 mSDsluCounter, 4992 mSDsCounter, 0 mSdLazyCounter, 1180 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 5321 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:44,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1148 Valid, 5321 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1180 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:37:44,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49411 states. [2022-02-09 00:37:45,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49411 to 41080. [2022-02-09 00:37:45,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41080 states, 41079 states have (on average 2.794006670074734) internal successors, (114775), 41079 states have internal predecessors, (114775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:45,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41080 states to 41080 states and 114775 transitions. [2022-02-09 00:37:45,901 INFO L78 Accepts]: Start accepts. Automaton has 41080 states and 114775 transitions. Word has length 231 [2022-02-09 00:37:45,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:45,902 INFO L470 AbstractCegarLoop]: Abstraction has 41080 states and 114775 transitions. [2022-02-09 00:37:45,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:45,902 INFO L276 IsEmpty]: Start isEmpty. Operand 41080 states and 114775 transitions. [2022-02-09 00:37:45,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:45,943 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:45,944 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:45,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-02-09 00:37:45,944 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:45,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:45,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1726005878, now seen corresponding path program 67 times [2022-02-09 00:37:45,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:45,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400248442] [2022-02-09 00:37:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:45,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:46,289 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:46,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:46,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400248442] [2022-02-09 00:37:46,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400248442] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:46,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:46,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:46,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618144466] [2022-02-09 00:37:46,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:46,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:46,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:46,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:46,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:46,290 INFO L87 Difference]: Start difference. First operand 41080 states and 114775 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:47,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:47,770 INFO L93 Difference]: Finished difference Result 53696 states and 148962 transitions. [2022-02-09 00:37:47,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 00:37:47,771 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:47,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:47,889 INFO L225 Difference]: With dead ends: 53696 [2022-02-09 00:37:47,889 INFO L226 Difference]: Without dead ends: 53080 [2022-02-09 00:37:47,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=608, Invalid=2044, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 00:37:47,889 INFO L933 BasicCegarLoop]: 481 mSDtfsCounter, 1737 mSDsluCounter, 5341 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1737 SdHoareTripleChecker+Valid, 5702 SdHoareTripleChecker+Invalid, 1419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:47,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1737 Valid, 5702 Invalid, 1419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 00:37:47,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53080 states. [2022-02-09 00:37:48,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53080 to 41128. [2022-02-09 00:37:48,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41128 states, 41127 states have (on average 2.794344347995234) internal successors, (114923), 41127 states have internal predecessors, (114923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:48,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41128 states to 41128 states and 114923 transitions. [2022-02-09 00:37:48,847 INFO L78 Accepts]: Start accepts. Automaton has 41128 states and 114923 transitions. Word has length 231 [2022-02-09 00:37:48,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:48,847 INFO L470 AbstractCegarLoop]: Abstraction has 41128 states and 114923 transitions. [2022-02-09 00:37:48,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:48,847 INFO L276 IsEmpty]: Start isEmpty. Operand 41128 states and 114923 transitions. [2022-02-09 00:37:48,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:48,891 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:48,891 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:48,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-02-09 00:37:48,892 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:48,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:48,892 INFO L85 PathProgramCache]: Analyzing trace with hash 185798212, now seen corresponding path program 68 times [2022-02-09 00:37:48,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:48,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332820550] [2022-02-09 00:37:48,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:48,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:49,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:49,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332820550] [2022-02-09 00:37:49,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332820550] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:49,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:49,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:49,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138092840] [2022-02-09 00:37:49,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:49,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:49,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:49,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:49,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:49,416 INFO L87 Difference]: Start difference. First operand 41128 states and 114923 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:50,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:50,788 INFO L93 Difference]: Finished difference Result 52826 states and 146760 transitions. [2022-02-09 00:37:50,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-09 00:37:50,789 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:50,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:51,046 INFO L225 Difference]: With dead ends: 52826 [2022-02-09 00:37:51,047 INFO L226 Difference]: Without dead ends: 52826 [2022-02-09 00:37:51,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=734, Invalid=2236, Unknown=0, NotChecked=0, Total=2970 [2022-02-09 00:37:51,047 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 1463 mSDsluCounter, 4202 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 4570 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:51,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1463 Valid, 4570 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:37:51,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52826 states. [2022-02-09 00:37:51,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52826 to 41132. [2022-02-09 00:37:51,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41132 states, 41131 states have (on average 2.794437285745545) internal successors, (114938), 41131 states have internal predecessors, (114938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:51,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41132 states to 41132 states and 114938 transitions. [2022-02-09 00:37:51,924 INFO L78 Accepts]: Start accepts. Automaton has 41132 states and 114938 transitions. Word has length 231 [2022-02-09 00:37:51,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:51,924 INFO L470 AbstractCegarLoop]: Abstraction has 41132 states and 114938 transitions. [2022-02-09 00:37:51,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:51,924 INFO L276 IsEmpty]: Start isEmpty. Operand 41132 states and 114938 transitions. [2022-02-09 00:37:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:51,972 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:51,972 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:51,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-02-09 00:37:51,972 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:51,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:51,972 INFO L85 PathProgramCache]: Analyzing trace with hash -672356982, now seen corresponding path program 69 times [2022-02-09 00:37:51,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:51,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577812667] [2022-02-09 00:37:51,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:51,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:52,317 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:52,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:52,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577812667] [2022-02-09 00:37:52,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577812667] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:52,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:52,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:52,318 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748006615] [2022-02-09 00:37:52,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:52,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:52,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:52,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:52,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:52,319 INFO L87 Difference]: Start difference. First operand 41132 states and 114938 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:53,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:53,787 INFO L93 Difference]: Finished difference Result 52322 states and 145354 transitions. [2022-02-09 00:37:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 00:37:53,788 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:53,907 INFO L225 Difference]: With dead ends: 52322 [2022-02-09 00:37:53,907 INFO L226 Difference]: Without dead ends: 52322 [2022-02-09 00:37:53,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=652, Invalid=2000, Unknown=0, NotChecked=0, Total=2652 [2022-02-09 00:37:53,908 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1125 mSDsluCounter, 4381 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 4740 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:53,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 4740 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 00:37:53,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52322 states. [2022-02-09 00:37:54,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52322 to 41136. [2022-02-09 00:37:54,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41136 states, 41135 states have (on average 2.7946274462136866) internal successors, (114957), 41135 states have internal predecessors, (114957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:55,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41136 states to 41136 states and 114957 transitions. [2022-02-09 00:37:55,060 INFO L78 Accepts]: Start accepts. Automaton has 41136 states and 114957 transitions. Word has length 231 [2022-02-09 00:37:55,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:55,061 INFO L470 AbstractCegarLoop]: Abstraction has 41136 states and 114957 transitions. [2022-02-09 00:37:55,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:55,061 INFO L276 IsEmpty]: Start isEmpty. Operand 41136 states and 114957 transitions. [2022-02-09 00:37:55,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:55,105 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:55,105 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:55,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-02-09 00:37:55,105 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:55,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:55,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1147947072, now seen corresponding path program 70 times [2022-02-09 00:37:55,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:55,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578024320] [2022-02-09 00:37:55,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:55,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:55,468 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:55,468 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:55,468 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578024320] [2022-02-09 00:37:55,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578024320] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:55,468 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:55,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:55,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374926870] [2022-02-09 00:37:55,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:55,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:55,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:55,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:55,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:55,469 INFO L87 Difference]: Start difference. First operand 41136 states and 114957 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:56,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:37:56,978 INFO L93 Difference]: Finished difference Result 51265 states and 142492 transitions. [2022-02-09 00:37:56,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 00:37:56,979 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:37:56,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:37:57,102 INFO L225 Difference]: With dead ends: 51265 [2022-02-09 00:37:57,102 INFO L226 Difference]: Without dead ends: 51265 [2022-02-09 00:37:57,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=685, Invalid=2071, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 00:37:57,102 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1177 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 5217 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:37:57,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 5217 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 00:37:57,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51265 states. [2022-02-09 00:37:57,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51265 to 41116. [2022-02-09 00:37:57,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41116 states, 41115 states have (on average 2.793968138149094) internal successors, (114874), 41115 states have internal predecessors, (114874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:58,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41116 states to 41116 states and 114874 transitions. [2022-02-09 00:37:58,037 INFO L78 Accepts]: Start accepts. Automaton has 41116 states and 114874 transitions. Word has length 231 [2022-02-09 00:37:58,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:37:58,037 INFO L470 AbstractCegarLoop]: Abstraction has 41116 states and 114874 transitions. [2022-02-09 00:37:58,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:37:58,037 INFO L276 IsEmpty]: Start isEmpty. Operand 41116 states and 114874 transitions. [2022-02-09 00:37:58,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:37:58,081 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:37:58,082 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:37:58,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-02-09 00:37:58,082 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:37:58,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:37:58,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1222850758, now seen corresponding path program 71 times [2022-02-09 00:37:58,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:37:58,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748918918] [2022-02-09 00:37:58,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:37:58,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:37:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:37:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:37:58,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:37:58,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748918918] [2022-02-09 00:37:58,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748918918] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:37:58,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:37:58,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:37:58,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716945221] [2022-02-09 00:37:58,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:37:58,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:37:58,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:37:58,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:37:58,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:37:58,655 INFO L87 Difference]: Start difference. First operand 41116 states and 114874 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:38:00,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:38:00,218 INFO L93 Difference]: Finished difference Result 55238 states and 153158 transitions. [2022-02-09 00:38:00,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-09 00:38:00,219 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:38:00,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:38:00,349 INFO L225 Difference]: With dead ends: 55238 [2022-02-09 00:38:00,349 INFO L226 Difference]: Without dead ends: 54622 [2022-02-09 00:38:00,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=637, Invalid=2119, Unknown=0, NotChecked=0, Total=2756 [2022-02-09 00:38:00,350 INFO L933 BasicCegarLoop]: 483 mSDtfsCounter, 1390 mSDsluCounter, 5462 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 5825 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-09 00:38:00,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1390 Valid, 5825 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-09 00:38:00,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54622 states. [2022-02-09 00:38:01,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54622 to 41116. [2022-02-09 00:38:01,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41116 states, 41115 states have (on average 2.793092545299769) internal successors, (114838), 41115 states have internal predecessors, (114838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:38:01,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41116 states to 41116 states and 114838 transitions. [2022-02-09 00:38:01,233 INFO L78 Accepts]: Start accepts. Automaton has 41116 states and 114838 transitions. Word has length 231 [2022-02-09 00:38:01,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:38:01,234 INFO L470 AbstractCegarLoop]: Abstraction has 41116 states and 114838 transitions. [2022-02-09 00:38:01,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:38:01,234 INFO L276 IsEmpty]: Start isEmpty. Operand 41116 states and 114838 transitions. [2022-02-09 00:38:01,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-02-09 00:38:01,279 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:38:01,279 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:38:01,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-02-09 00:38:01,279 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 00:38:01,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:38:01,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1531908872, now seen corresponding path program 72 times [2022-02-09 00:38:01,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:38:01,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131703886] [2022-02-09 00:38:01,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:38:01,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:38:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:38:01,649 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-09 00:38:01,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:38:01,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131703886] [2022-02-09 00:38:01,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131703886] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:38:01,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:38:01,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-09 00:38:01,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321191341] [2022-02-09 00:38:01,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:38:01,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-09 00:38:01,650 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:38:01,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-09 00:38:01,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-02-09 00:38:01,651 INFO L87 Difference]: Start difference. First operand 41116 states and 114838 transitions. Second operand has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:38:03,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:38:03,271 INFO L93 Difference]: Finished difference Result 56568 states and 157294 transitions. [2022-02-09 00:38:03,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-09 00:38:03,272 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-02-09 00:38:03,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:38:03,402 INFO L225 Difference]: With dead ends: 56568 [2022-02-09 00:38:03,403 INFO L226 Difference]: Without dead ends: 56568 [2022-02-09 00:38:03,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=767, Invalid=2313, Unknown=0, NotChecked=0, Total=3080 [2022-02-09 00:38:03,403 INFO L933 BasicCegarLoop]: 458 mSDtfsCounter, 1572 mSDsluCounter, 4261 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1572 SdHoareTripleChecker+Valid, 4630 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-09 00:38:03,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1572 Valid, 4630 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-09 00:38:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56568 states.