/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/popl20-more-queue-add-3-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 14:46:34,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 14:46:34,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 14:46:34,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-18 14:46:34,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 14:46:34,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 14:46:34,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 14:46:34,973 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 [2022-02-18 14:46:34,995 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 14:46:34,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 14:46:34,996 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 14:46:34,996 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 14:46:34,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 14:46:34,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 14:46:34,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 14:46:34,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 14:46:34,997 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 14:46:34,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 14:46:34,998 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 14:46:34,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 14:46:34,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 14:46:34,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 14:46:34,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 14:46:34,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 14:46:34,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 14:46:34,998 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 14:46:34,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 14:46:34,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 14:46:34,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 14:46:34,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 14:46:34,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 14:46:34,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 14:46:35,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 14:46:35,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:46:35,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 14:46:35,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 14:46:35,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 14:46:35,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 14:46:35,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 14:46:35,000 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 14:46:35,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 14:46:35,001 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 14:46:35,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 14:46:35,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 14:46:35,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 14:46:35,182 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 14:46:35,183 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 14:46:35,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-02-18 14:46:35,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7406f1627/c6686f2fb00048b291a1896e8d861af4/FLAGa06b0f1dc [2022-02-18 14:46:35,546 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 14:46:35,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-02-18 14:46:35,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7406f1627/c6686f2fb00048b291a1896e8d861af4/FLAGa06b0f1dc [2022-02-18 14:46:35,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7406f1627/c6686f2fb00048b291a1896e8d861af4 [2022-02-18 14:46:35,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 14:46:35,984 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 14:46:35,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 14:46:35,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 14:46:35,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 14:46:35,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:46:35" (1/1) ... [2022-02-18 14:46:35,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4717cb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:35, skipping insertion in model container [2022-02-18 14:46:35,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 02:46:35" (1/1) ... [2022-02-18 14:46:35,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 14:46:36,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 14:46:36,158 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/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-02-18 14:46:36,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:46:36,169 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 14:46:36,185 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/popl20-more-queue-add-3-nl.wvr.c[3615,3628] [2022-02-18 14:46:36,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 14:46:36,197 INFO L208 MainTranslator]: Completed translation [2022-02-18 14:46:36,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36 WrapperNode [2022-02-18 14:46:36,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 14:46:36,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 14:46:36,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 14:46:36,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 14:46:36,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36" (1/1) ... [2022-02-18 14:46:36,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36" (1/1) ... [2022-02-18 14:46:36,238 INFO L137 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 257 [2022-02-18 14:46:36,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 14:46:36,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 14:46:36,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 14:46:36,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 14:46:36,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36" (1/1) ... [2022-02-18 14:46:36,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36" (1/1) ... [2022-02-18 14:46:36,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36" (1/1) ... [2022-02-18 14:46:36,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36" (1/1) ... [2022-02-18 14:46:36,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36" (1/1) ... [2022-02-18 14:46:36,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36" (1/1) ... [2022-02-18 14:46:36,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36" (1/1) ... [2022-02-18 14:46:36,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 14:46:36,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 14:46:36,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 14:46:36,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 14:46:36,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36" (1/1) ... [2022-02-18 14:46:36,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 14:46:36,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:46:36,303 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) [2022-02-18 14:46:36,305 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 [2022-02-18 14:46:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 14:46:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 14:46:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 14:46:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-18 14:46:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-18 14:46:36,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-18 14:46:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-18 14:46:36,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-18 14:46:36,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-18 14:46:36,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-18 14:46:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 14:46:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-18 14:46:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-18 14:46:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-18 14:46:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 14:46:36,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 14:46:36,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 14:46:36,334 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 14:46:36,400 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 14:46:36,401 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 14:46:36,708 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 14:46:36,802 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 14:46:36,802 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-02-18 14:46:36,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:46:36 BoogieIcfgContainer [2022-02-18 14:46:36,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 14:46:36,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 14:46:36,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 14:46:36,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 14:46:36,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 02:46:35" (1/3) ... [2022-02-18 14:46:36,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5393208a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:46:36, skipping insertion in model container [2022-02-18 14:46:36,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 02:46:36" (2/3) ... [2022-02-18 14:46:36,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5393208a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 02:46:36, skipping insertion in model container [2022-02-18 14:46:36,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 02:46:36" (3/3) ... [2022-02-18 14:46:36,813 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2022-02-18 14:46:36,816 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 14:46:36,816 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 14:46:36,816 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 14:46:36,816 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 14:46:36,877 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,878 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,879 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,880 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,881 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,882 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,883 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,883 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,883 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,883 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,883 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,884 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,885 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,886 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,887 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,888 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,888 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,889 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,890 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,891 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,891 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,891 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,893 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,893 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,893 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,894 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,894 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,894 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,894 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,894 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,894 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,894 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,896 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,898 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,898 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,898 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,898 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,898 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,898 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,898 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 14:46:36,908 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-18 14:46:36,953 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 14:46:36,957 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 14:46:36,957 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-18 14:46:36,971 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 215 places, 223 transitions, 470 flow [2022-02-18 14:46:37,211 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:37,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:37,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-02-18 14:46:37,293 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:37,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:37,294 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:37,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:37,298 INFO L85 PathProgramCache]: Analyzing trace with hash -559935921, now seen corresponding path program 1 times [2022-02-18 14:46:37,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:37,304 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764079385] [2022-02-18 14:46:37,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:37,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:37,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:46:37,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:37,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764079385] [2022-02-18 14:46:37,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764079385] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:37,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:37,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-18 14:46:37,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262629149] [2022-02-18 14:46:37,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:37,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-18 14:46:37,548 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:37,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-18 14:46:37,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-18 14:46:37,585 INFO L87 Difference]: Start difference. First operand has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 0 states have call successors, (0), 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 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:37,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:37,754 INFO L93 Difference]: Finished difference Result 6644 states and 23512 transitions. [2022-02-18 14:46:37,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 14:46:37,756 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2022-02-18 14:46:37,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:37,858 INFO L225 Difference]: With dead ends: 6644 [2022-02-18 14:46:37,858 INFO L226 Difference]: Without dead ends: 6638 [2022-02-18 14:46:37,859 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 [2022-02-18 14:46:37,861 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:37,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:46:37,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6638 states. [2022-02-18 14:46:38,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6638 to 6638. [2022-02-18 14:46:38,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 6637 states have (on average 3.5416603887298477) internal successors, (23506), 6637 states have internal predecessors, (23506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:38,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 23506 transitions. [2022-02-18 14:46:38,128 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 23506 transitions. Word has length 159 [2022-02-18 14:46:38,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:38,129 INFO L470 AbstractCegarLoop]: Abstraction has 6638 states and 23506 transitions. [2022-02-18 14:46:38,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:38,130 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 23506 transitions. [2022-02-18 14:46:38,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-02-18 14:46:38,151 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:38,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:38,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 14:46:38,152 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:38,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:38,154 INFO L85 PathProgramCache]: Analyzing trace with hash 864045723, now seen corresponding path program 1 times [2022-02-18 14:46:38,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:38,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193228382] [2022-02-18 14:46:38,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:38,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:38,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:46:38,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:38,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193228382] [2022-02-18 14:46:38,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193228382] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:38,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:38,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:46:38,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640686072] [2022-02-18 14:46:38,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:38,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:46:38,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:38,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:46:38,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:46:38,352 INFO L87 Difference]: Start difference. First operand 6638 states and 23506 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:38,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:38,618 INFO L93 Difference]: Finished difference Result 7452 states and 25924 transitions. [2022-02-18 14:46:38,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 14:46:38,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2022-02-18 14:46:38,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:38,655 INFO L225 Difference]: With dead ends: 7452 [2022-02-18 14:46:38,656 INFO L226 Difference]: Without dead ends: 6644 [2022-02-18 14:46:38,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-02-18 14:46:38,659 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 148 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:38,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 615 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:46:38,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6644 states. [2022-02-18 14:46:38,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6644 to 6639. [2022-02-18 14:46:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6639 states, 6638 states have (on average 3.5412774932208495) internal successors, (23507), 6638 states have internal predecessors, (23507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:38,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6639 states to 6639 states and 23507 transitions. [2022-02-18 14:46:38,883 INFO L78 Accepts]: Start accepts. Automaton has 6639 states and 23507 transitions. Word has length 168 [2022-02-18 14:46:38,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:38,885 INFO L470 AbstractCegarLoop]: Abstraction has 6639 states and 23507 transitions. [2022-02-18 14:46:38,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:38,886 INFO L276 IsEmpty]: Start isEmpty. Operand 6639 states and 23507 transitions. [2022-02-18 14:46:38,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-02-18 14:46:38,904 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:38,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:38,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 14:46:38,905 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:38,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:38,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1179599516, now seen corresponding path program 1 times [2022-02-18 14:46:38,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:38,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948946848] [2022-02-18 14:46:38,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:38,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:46:39,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:39,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948946848] [2022-02-18 14:46:39,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948946848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:39,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:39,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 14:46:39,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433348662] [2022-02-18 14:46:39,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:39,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 14:46:39,070 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:39,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 14:46:39,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-18 14:46:39,070 INFO L87 Difference]: Start difference. First operand 6639 states and 23507 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 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) [2022-02-18 14:46:39,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:39,217 INFO L93 Difference]: Finished difference Result 8112 states and 28002 transitions. [2022-02-18 14:46:39,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 14:46:39,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 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 175 [2022-02-18 14:46:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:39,257 INFO L225 Difference]: With dead ends: 8112 [2022-02-18 14:46:39,257 INFO L226 Difference]: Without dead ends: 6645 [2022-02-18 14:46:39,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-02-18 14:46:39,262 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 410 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:39,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 554 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:46:39,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6645 states. [2022-02-18 14:46:39,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6645 to 6640. [2022-02-18 14:46:39,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6640 states, 6639 states have (on average 3.5408947130591955) internal successors, (23508), 6639 states have internal predecessors, (23508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:39,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6640 states to 6640 states and 23508 transitions. [2022-02-18 14:46:39,556 INFO L78 Accepts]: Start accepts. Automaton has 6640 states and 23508 transitions. Word has length 175 [2022-02-18 14:46:39,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:39,557 INFO L470 AbstractCegarLoop]: Abstraction has 6640 states and 23508 transitions. [2022-02-18 14:46:39,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 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) [2022-02-18 14:46:39,557 INFO L276 IsEmpty]: Start isEmpty. Operand 6640 states and 23508 transitions. [2022-02-18 14:46:39,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:39,576 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:39,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:39,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 14:46:39,576 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:39,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:39,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1706711251, now seen corresponding path program 1 times [2022-02-18 14:46:39,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:39,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174558865] [2022-02-18 14:46:39,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:39,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:40,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:40,457 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174558865] [2022-02-18 14:46:40,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174558865] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:40,458 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:40,458 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:40,458 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725010086] [2022-02-18 14:46:40,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:40,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:40,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:40,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:40,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:40,459 INFO L87 Difference]: Start difference. First operand 6640 states and 23508 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:41,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:41,289 INFO L93 Difference]: Finished difference Result 14626 states and 52262 transitions. [2022-02-18 14:46:41,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:46:41,289 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:41,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:41,357 INFO L225 Difference]: With dead ends: 14626 [2022-02-18 14:46:41,357 INFO L226 Difference]: Without dead ends: 14476 [2022-02-18 14:46:41,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:46:41,358 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 605 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:41,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 2864 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-18 14:46:41,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14476 states. [2022-02-18 14:46:41,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14476 to 7934. [2022-02-18 14:46:41,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7934 states, 7933 states have (on average 3.4975419135257786) internal successors, (27746), 7933 states have internal predecessors, (27746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:41,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7934 states to 7934 states and 27746 transitions. [2022-02-18 14:46:41,636 INFO L78 Accepts]: Start accepts. Automaton has 7934 states and 27746 transitions. Word has length 182 [2022-02-18 14:46:41,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:41,637 INFO L470 AbstractCegarLoop]: Abstraction has 7934 states and 27746 transitions. [2022-02-18 14:46:41,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:41,638 INFO L276 IsEmpty]: Start isEmpty. Operand 7934 states and 27746 transitions. [2022-02-18 14:46:41,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:41,660 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:41,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:41,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-18 14:46:41,660 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:41,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:41,661 INFO L85 PathProgramCache]: Analyzing trace with hash -243046637, now seen corresponding path program 2 times [2022-02-18 14:46:41,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:41,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363385249] [2022-02-18 14:46:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:41,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:42,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:42,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:42,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363385249] [2022-02-18 14:46:42,278 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363385249] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:42,278 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:42,278 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:42,278 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137553548] [2022-02-18 14:46:42,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:42,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:42,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:42,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:42,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:42,280 INFO L87 Difference]: Start difference. First operand 7934 states and 27746 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:42,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:42,857 INFO L93 Difference]: Finished difference Result 14222 states and 50838 transitions. [2022-02-18 14:46:42,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:46:42,857 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:42,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:42,964 INFO L225 Difference]: With dead ends: 14222 [2022-02-18 14:46:42,965 INFO L226 Difference]: Without dead ends: 14072 [2022-02-18 14:46:42,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:46:42,966 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 463 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:42,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2721 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:46:43,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14072 states. [2022-02-18 14:46:43,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14072 to 8942. [2022-02-18 14:46:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 8941 states have (on average 3.486858293255788) internal successors, (31176), 8941 states have internal predecessors, (31176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:43,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 31176 transitions. [2022-02-18 14:46:43,266 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 31176 transitions. Word has length 182 [2022-02-18 14:46:43,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:43,266 INFO L470 AbstractCegarLoop]: Abstraction has 8942 states and 31176 transitions. [2022-02-18 14:46:43,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:43,267 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 31176 transitions. [2022-02-18 14:46:43,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:43,308 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:43,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:43,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-18 14:46:43,309 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:43,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:43,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1793467055, now seen corresponding path program 3 times [2022-02-18 14:46:43,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:43,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960486955] [2022-02-18 14:46:43,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:43,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:44,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:44,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960486955] [2022-02-18 14:46:44,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960486955] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:44,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:44,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:44,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018634360] [2022-02-18 14:46:44,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:44,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:44,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:44,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:44,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:44,002 INFO L87 Difference]: Start difference. First operand 8942 states and 31176 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:44,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:44,622 INFO L93 Difference]: Finished difference Result 15685 states and 55678 transitions. [2022-02-18 14:46:44,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:46:44,622 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:44,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:44,673 INFO L225 Difference]: With dead ends: 15685 [2022-02-18 14:46:44,673 INFO L226 Difference]: Without dead ends: 15535 [2022-02-18 14:46:44,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:46:44,674 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 645 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:44,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 2755 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:46:44,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15535 states. [2022-02-18 14:46:44,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15535 to 9208. [2022-02-18 14:46:44,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:44,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-02-18 14:46:44,927 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-02-18 14:46:44,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:44,928 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-02-18 14:46:44,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:44,928 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-02-18 14:46:44,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:44,948 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:44,948 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:44,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-18 14:46:44,948 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:44,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:44,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1762356665, now seen corresponding path program 4 times [2022-02-18 14:46:44,949 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:44,949 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059956208] [2022-02-18 14:46:44,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:44,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:45,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:45,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:45,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059956208] [2022-02-18 14:46:45,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059956208] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:45,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:45,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:45,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109435564] [2022-02-18 14:46:45,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:45,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:45,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:45,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:45,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:45,614 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:46,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:46,230 INFO L93 Difference]: Finished difference Result 15244 states and 54483 transitions. [2022-02-18 14:46:46,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:46:46,231 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:46,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:46,285 INFO L225 Difference]: With dead ends: 15244 [2022-02-18 14:46:46,285 INFO L226 Difference]: Without dead ends: 15094 [2022-02-18 14:46:46,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:46:46,286 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 577 mSDsluCounter, 2608 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:46,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 2576 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:46:46,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15094 states. [2022-02-18 14:46:46,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15094 to 9208. [2022-02-18 14:46:46,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-02-18 14:46:46,553 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-02-18 14:46:46,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:46,553 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-02-18 14:46:46,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:46,553 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-02-18 14:46:46,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:46,575 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:46,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:46,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-18 14:46:46,575 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:46,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:46,576 INFO L85 PathProgramCache]: Analyzing trace with hash -988028945, now seen corresponding path program 5 times [2022-02-18 14:46:46,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:46,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406211913] [2022-02-18 14:46:46,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:46,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:47,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:47,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:47,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406211913] [2022-02-18 14:46:47,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406211913] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:47,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:47,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:47,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349306103] [2022-02-18 14:46:47,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:47,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:47,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:47,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:47,108 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:47,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:47,688 INFO L93 Difference]: Finished difference Result 15244 states and 54483 transitions. [2022-02-18 14:46:47,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:46:47,689 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:47,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:47,791 INFO L225 Difference]: With dead ends: 15244 [2022-02-18 14:46:47,791 INFO L226 Difference]: Without dead ends: 15094 [2022-02-18 14:46:47,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:46:47,807 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 539 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:47,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 2571 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:46:47,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15094 states. [2022-02-18 14:46:48,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15094 to 9208. [2022-02-18 14:46:48,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:48,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-02-18 14:46:48,129 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-02-18 14:46:48,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:48,130 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-02-18 14:46:48,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:48,130 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-02-18 14:46:48,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:48,149 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:48,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:48,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-18 14:46:48,150 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:48,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:48,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1830217275, now seen corresponding path program 6 times [2022-02-18 14:46:48,151 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:48,151 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862349682] [2022-02-18 14:46:48,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:48,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:48,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:48,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:48,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862349682] [2022-02-18 14:46:48,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862349682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:48,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:48,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:48,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160247758] [2022-02-18 14:46:48,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:48,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:48,808 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:48,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:48,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:48,809 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:49,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:49,563 INFO L93 Difference]: Finished difference Result 16354 states and 58195 transitions. [2022-02-18 14:46:49,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:46:49,563 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:49,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:49,620 INFO L225 Difference]: With dead ends: 16354 [2022-02-18 14:46:49,620 INFO L226 Difference]: Without dead ends: 16204 [2022-02-18 14:46:49,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:46:49,621 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 503 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:49,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 2582 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:46:49,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16204 states. [2022-02-18 14:46:49,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16204 to 9320. [2022-02-18 14:46:49,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9320 states, 9319 states have (on average 3.495546732482026) internal successors, (32575), 9319 states have internal predecessors, (32575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:49,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9320 states to 9320 states and 32575 transitions. [2022-02-18 14:46:49,851 INFO L78 Accepts]: Start accepts. Automaton has 9320 states and 32575 transitions. Word has length 182 [2022-02-18 14:46:49,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:49,852 INFO L470 AbstractCegarLoop]: Abstraction has 9320 states and 32575 transitions. [2022-02-18 14:46:49,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:49,852 INFO L276 IsEmpty]: Start isEmpty. Operand 9320 states and 32575 transitions. [2022-02-18 14:46:49,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:49,869 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:49,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:49,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-18 14:46:49,869 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:49,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:49,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1356367291, now seen corresponding path program 7 times [2022-02-18 14:46:49,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:49,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927867965] [2022-02-18 14:46:49,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:49,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:50,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:50,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:50,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927867965] [2022-02-18 14:46:50,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927867965] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:50,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:50,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:50,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912472901] [2022-02-18 14:46:50,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:50,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:50,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:50,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:50,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:50,322 INFO L87 Difference]: Start difference. First operand 9320 states and 32575 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:50,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:50,946 INFO L93 Difference]: Finished difference Result 15118 states and 54397 transitions. [2022-02-18 14:46:50,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:46:50,947 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:50,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:50,996 INFO L225 Difference]: With dead ends: 15118 [2022-02-18 14:46:50,996 INFO L226 Difference]: Without dead ends: 14896 [2022-02-18 14:46:50,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:46:50,997 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 350 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:50,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 2988 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:46:51,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14896 states. [2022-02-18 14:46:51,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14896 to 9504. [2022-02-18 14:46:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9504 states, 9503 states have (on average 3.500473534673261) internal successors, (33265), 9503 states have internal predecessors, (33265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:51,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9504 states to 9504 states and 33265 transitions. [2022-02-18 14:46:51,245 INFO L78 Accepts]: Start accepts. Automaton has 9504 states and 33265 transitions. Word has length 182 [2022-02-18 14:46:51,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:51,245 INFO L470 AbstractCegarLoop]: Abstraction has 9504 states and 33265 transitions. [2022-02-18 14:46:51,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 9504 states and 33265 transitions. [2022-02-18 14:46:51,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:51,263 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:51,263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:51,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-18 14:46:51,264 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:51,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:51,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2099447355, now seen corresponding path program 8 times [2022-02-18 14:46:51,264 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:51,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867007062] [2022-02-18 14:46:51,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:51,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:51,802 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:51,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867007062] [2022-02-18 14:46:51,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867007062] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:51,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:51,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:51,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958882729] [2022-02-18 14:46:51,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:51,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:51,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:51,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:51,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:51,804 INFO L87 Difference]: Start difference. First operand 9504 states and 33265 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:52,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:52,347 INFO L93 Difference]: Finished difference Result 16088 states and 57607 transitions. [2022-02-18 14:46:52,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:46:52,348 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:52,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:52,393 INFO L225 Difference]: With dead ends: 16088 [2022-02-18 14:46:52,393 INFO L226 Difference]: Without dead ends: 15938 [2022-02-18 14:46:52,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:46:52,394 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 537 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:52,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 2245 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:46:52,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15938 states. [2022-02-18 14:46:52,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15938 to 9568. [2022-02-18 14:46:52,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:52,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-02-18 14:46:52,676 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-02-18 14:46:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:52,676 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-02-18 14:46:52,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:52,676 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-02-18 14:46:52,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:52,694 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:52,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:52,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-18 14:46:52,694 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:52,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:52,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1387220523, now seen corresponding path program 9 times [2022-02-18 14:46:52,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:52,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078038657] [2022-02-18 14:46:52,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:52,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:53,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:53,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:53,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078038657] [2022-02-18 14:46:53,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078038657] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:53,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:53,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:53,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650054503] [2022-02-18 14:46:53,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:53,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:53,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:53,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:53,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:53,222 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:53,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:53,828 INFO L93 Difference]: Finished difference Result 15772 states and 56589 transitions. [2022-02-18 14:46:53,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:46:53,828 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:53,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:53,873 INFO L225 Difference]: With dead ends: 15772 [2022-02-18 14:46:53,873 INFO L226 Difference]: Without dead ends: 15622 [2022-02-18 14:46:53,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-02-18 14:46:53,874 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 458 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:53,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2624 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:46:53,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15622 states. [2022-02-18 14:46:54,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15622 to 9568. [2022-02-18 14:46:54,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:54,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-02-18 14:46:54,101 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-02-18 14:46:54,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:54,102 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-02-18 14:46:54,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:54,102 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-02-18 14:46:54,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:54,119 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:54,120 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:54,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-18 14:46:54,120 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:54,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:54,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1183078429, now seen corresponding path program 10 times [2022-02-18 14:46:54,120 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:54,120 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664681734] [2022-02-18 14:46:54,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:54,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:54,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:54,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:54,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664681734] [2022-02-18 14:46:54,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664681734] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:54,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:54,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:54,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311121407] [2022-02-18 14:46:54,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:54,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:54,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:54,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:54,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:54,710 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:55,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:55,309 INFO L93 Difference]: Finished difference Result 15732 states and 56439 transitions. [2022-02-18 14:46:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-18 14:46:55,310 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:55,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:55,354 INFO L225 Difference]: With dead ends: 15732 [2022-02-18 14:46:55,354 INFO L226 Difference]: Without dead ends: 15582 [2022-02-18 14:46:55,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:46:55,355 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 451 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:55,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2539 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:46:55,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15582 states. [2022-02-18 14:46:55,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15582 to 9568. [2022-02-18 14:46:55,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:55,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-02-18 14:46:55,582 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-02-18 14:46:55,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:55,582 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-02-18 14:46:55,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:55,582 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-02-18 14:46:55,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:55,600 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:55,600 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:55,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-18 14:46:55,600 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:55,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:55,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1817055227, now seen corresponding path program 11 times [2022-02-18 14:46:55,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:55,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086468560] [2022-02-18 14:46:55,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:55,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:56,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:56,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:56,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086468560] [2022-02-18 14:46:56,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086468560] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:56,123 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:56,123 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:56,123 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738538022] [2022-02-18 14:46:56,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:56,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:56,124 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:56,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:56,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:56,125 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:56,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:56,610 INFO L93 Difference]: Finished difference Result 14869 states and 53304 transitions. [2022-02-18 14:46:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:46:56,611 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:56,654 INFO L225 Difference]: With dead ends: 14869 [2022-02-18 14:46:56,654 INFO L226 Difference]: Without dead ends: 14719 [2022-02-18 14:46:56,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:46:56,655 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 343 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:56,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2386 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:46:56,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14719 states. [2022-02-18 14:46:56,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14719 to 9792. [2022-02-18 14:46:56,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-02-18 14:46:56,877 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-02-18 14:46:56,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:56,878 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-02-18 14:46:56,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:56,878 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-02-18 14:46:56,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:56,896 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:56,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:56,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-18 14:46:56,897 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:56,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:56,897 INFO L85 PathProgramCache]: Analyzing trace with hash -2063128839, now seen corresponding path program 12 times [2022-02-18 14:46:56,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:56,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253025814] [2022-02-18 14:46:56,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:56,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:57,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:57,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:57,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253025814] [2022-02-18 14:46:57,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253025814] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:57,290 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:57,290 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:57,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676538992] [2022-02-18 14:46:57,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:57,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:57,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:57,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:57,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:57,291 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:57,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:57,778 INFO L93 Difference]: Finished difference Result 14770 states and 53097 transitions. [2022-02-18 14:46:57,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:46:57,778 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:57,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:57,819 INFO L225 Difference]: With dead ends: 14770 [2022-02-18 14:46:57,820 INFO L226 Difference]: Without dead ends: 14548 [2022-02-18 14:46:57,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:46:57,822 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 489 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:57,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 2262 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:46:57,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14548 states. [2022-02-18 14:46:58,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14548 to 9792. [2022-02-18 14:46:58,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:58,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-02-18 14:46:58,047 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-02-18 14:46:58,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:58,048 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-02-18 14:46:58,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:58,048 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-02-18 14:46:58,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:58,066 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:58,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:58,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-18 14:46:58,066 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:58,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:58,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1986285691, now seen corresponding path program 13 times [2022-02-18 14:46:58,067 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:58,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172273495] [2022-02-18 14:46:58,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:58,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:58,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:58,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:58,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172273495] [2022-02-18 14:46:58,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172273495] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:58,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:58,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:58,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765365112] [2022-02-18 14:46:58,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:58,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:58,553 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:58,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:58,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:58,553 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:59,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:46:59,105 INFO L93 Difference]: Finished difference Result 15499 states and 55404 transitions. [2022-02-18 14:46:59,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:46:59,106 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:46:59,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:46:59,209 INFO L225 Difference]: With dead ends: 15499 [2022-02-18 14:46:59,209 INFO L226 Difference]: Without dead ends: 15349 [2022-02-18 14:46:59,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:46:59,210 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 407 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:46:59,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2704 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:46:59,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15349 states. [2022-02-18 14:46:59,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15349 to 9897. [2022-02-18 14:46:59,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9897 states, 9896 states have (on average 3.5198059822150363) internal successors, (34832), 9896 states have internal predecessors, (34832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:59,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9897 states to 9897 states and 34832 transitions. [2022-02-18 14:46:59,416 INFO L78 Accepts]: Start accepts. Automaton has 9897 states and 34832 transitions. Word has length 182 [2022-02-18 14:46:59,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:46:59,416 INFO L470 AbstractCegarLoop]: Abstraction has 9897 states and 34832 transitions. [2022-02-18 14:46:59,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:46:59,416 INFO L276 IsEmpty]: Start isEmpty. Operand 9897 states and 34832 transitions. [2022-02-18 14:46:59,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:46:59,434 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:46:59,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:46:59,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-18 14:46:59,434 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:46:59,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:46:59,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1909051591, now seen corresponding path program 14 times [2022-02-18 14:46:59,435 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:46:59,435 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447844423] [2022-02-18 14:46:59,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:46:59,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:46:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:46:59,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:46:59,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:46:59,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447844423] [2022-02-18 14:46:59,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447844423] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:46:59,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:46:59,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:46:59,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046647036] [2022-02-18 14:46:59,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:46:59,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:46:59,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:46:59,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:46:59,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:46:59,934 INFO L87 Difference]: Start difference. First operand 9897 states and 34832 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:00,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:00,482 INFO L93 Difference]: Finished difference Result 15868 states and 56775 transitions. [2022-02-18 14:47:00,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:00,483 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:00,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:00,527 INFO L225 Difference]: With dead ends: 15868 [2022-02-18 14:47:00,528 INFO L226 Difference]: Without dead ends: 15718 [2022-02-18 14:47:00,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:47:00,528 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 458 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:00,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2504 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:00,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15718 states. [2022-02-18 14:47:00,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15718 to 9792. [2022-02-18 14:47:00,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:00,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-02-18 14:47:00,757 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-02-18 14:47:00,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:00,758 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-02-18 14:47:00,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:00,758 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-02-18 14:47:00,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:00,776 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:00,776 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:00,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-18 14:47:00,776 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:00,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:00,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1735467003, now seen corresponding path program 15 times [2022-02-18 14:47:00,777 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:00,777 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922945960] [2022-02-18 14:47:00,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:00,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:01,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:01,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:01,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922945960] [2022-02-18 14:47:01,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922945960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:01,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:01,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:01,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536010131] [2022-02-18 14:47:01,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:01,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:01,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:01,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:01,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:01,203 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:01,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:01,693 INFO L93 Difference]: Finished difference Result 15130 states and 54471 transitions. [2022-02-18 14:47:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:01,693 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:01,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:01,737 INFO L225 Difference]: With dead ends: 15130 [2022-02-18 14:47:01,737 INFO L226 Difference]: Without dead ends: 14908 [2022-02-18 14:47:01,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:47:01,738 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 374 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:01,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 2317 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:01,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14908 states. [2022-02-18 14:47:01,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14908 to 9824. [2022-02-18 14:47:01,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9824 states, 9823 states have (on average 3.512674335742645) internal successors, (34505), 9823 states have internal predecessors, (34505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:02,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9824 states to 9824 states and 34505 transitions. [2022-02-18 14:47:02,063 INFO L78 Accepts]: Start accepts. Automaton has 9824 states and 34505 transitions. Word has length 182 [2022-02-18 14:47:02,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:02,063 INFO L470 AbstractCegarLoop]: Abstraction has 9824 states and 34505 transitions. [2022-02-18 14:47:02,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:02,063 INFO L276 IsEmpty]: Start isEmpty. Operand 9824 states and 34505 transitions. [2022-02-18 14:47:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:02,081 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:02,081 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:02,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-18 14:47:02,081 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1722757253, now seen corresponding path program 16 times [2022-02-18 14:47:02,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:02,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001882326] [2022-02-18 14:47:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:02,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:02,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:02,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:02,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001882326] [2022-02-18 14:47:02,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001882326] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:02,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:02,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:02,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781266901] [2022-02-18 14:47:02,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:02,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:02,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:02,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:02,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:02,531 INFO L87 Difference]: Start difference. First operand 9824 states and 34505 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:02,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:02,980 INFO L93 Difference]: Finished difference Result 15598 states and 56025 transitions. [2022-02-18 14:47:02,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:02,981 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:02,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:03,024 INFO L225 Difference]: With dead ends: 15598 [2022-02-18 14:47:03,025 INFO L226 Difference]: Without dead ends: 15448 [2022-02-18 14:47:03,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:47:03,025 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 528 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:03,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [528 Valid, 1932 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:03,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15448 states. [2022-02-18 14:47:03,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15448 to 9792. [2022-02-18 14:47:03,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:03,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-02-18 14:47:03,257 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-02-18 14:47:03,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:03,257 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-02-18 14:47:03,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:03,257 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-02-18 14:47:03,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:03,275 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:03,275 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:03,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-18 14:47:03,275 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:03,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:03,275 INFO L85 PathProgramCache]: Analyzing trace with hash 977182485, now seen corresponding path program 17 times [2022-02-18 14:47:03,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:03,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153661205] [2022-02-18 14:47:03,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:03,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:03,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:03,706 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153661205] [2022-02-18 14:47:03,706 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153661205] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:03,706 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:03,706 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:03,706 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490657445] [2022-02-18 14:47:03,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:03,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:03,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:03,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:03,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:03,707 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:04,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:04,222 INFO L93 Difference]: Finished difference Result 15282 states and 54634 transitions. [2022-02-18 14:47:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:04,223 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:04,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:04,264 INFO L225 Difference]: With dead ends: 15282 [2022-02-18 14:47:04,264 INFO L226 Difference]: Without dead ends: 15132 [2022-02-18 14:47:04,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:47:04,265 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 352 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:04,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 2515 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:04,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15132 states. [2022-02-18 14:47:04,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15132 to 9582. [2022-02-18 14:47:04,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9582 states, 9581 states have (on average 3.5040183696900113) internal successors, (33572), 9581 states have internal predecessors, (33572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:04,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 33572 transitions. [2022-02-18 14:47:04,489 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 33572 transitions. Word has length 182 [2022-02-18 14:47:04,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:04,489 INFO L470 AbstractCegarLoop]: Abstraction has 9582 states and 33572 transitions. [2022-02-18 14:47:04,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:04,489 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 33572 transitions. [2022-02-18 14:47:04,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:04,506 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:04,507 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:04,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-18 14:47:04,507 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:04,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:04,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2088446317, now seen corresponding path program 18 times [2022-02-18 14:47:04,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:04,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167468579] [2022-02-18 14:47:04,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:04,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:05,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:05,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167468579] [2022-02-18 14:47:05,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167468579] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:05,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:05,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:05,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434791152] [2022-02-18 14:47:05,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:05,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:05,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:05,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:05,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:05,043 INFO L87 Difference]: Start difference. First operand 9582 states and 33572 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:05,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:05,585 INFO L93 Difference]: Finished difference Result 14888 states and 53562 transitions. [2022-02-18 14:47:05,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:05,586 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:05,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:05,632 INFO L225 Difference]: With dead ends: 14888 [2022-02-18 14:47:05,632 INFO L226 Difference]: Without dead ends: 14666 [2022-02-18 14:47:05,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2022-02-18 14:47:05,633 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 353 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:05,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 2686 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:05,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14666 states. [2022-02-18 14:47:05,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14666 to 9518. [2022-02-18 14:47:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9518 states, 9517 states have (on average 3.499001786277188) internal successors, (33300), 9517 states have internal predecessors, (33300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:05,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9518 states to 9518 states and 33300 transitions. [2022-02-18 14:47:05,893 INFO L78 Accepts]: Start accepts. Automaton has 9518 states and 33300 transitions. Word has length 182 [2022-02-18 14:47:05,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:05,894 INFO L470 AbstractCegarLoop]: Abstraction has 9518 states and 33300 transitions. [2022-02-18 14:47:05,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:05,894 INFO L276 IsEmpty]: Start isEmpty. Operand 9518 states and 33300 transitions. [2022-02-18 14:47:05,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:05,912 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:05,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:05,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-18 14:47:05,912 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:05,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:05,913 INFO L85 PathProgramCache]: Analyzing trace with hash -266734529, now seen corresponding path program 19 times [2022-02-18 14:47:05,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:05,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843317591] [2022-02-18 14:47:05,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:05,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:05,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:05,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:05,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843317591] [2022-02-18 14:47:05,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843317591] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:05,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:05,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:47:05,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261478792] [2022-02-18 14:47:05,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:05,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:47:05,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:05,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:47:05,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:47:05,961 INFO L87 Difference]: Start difference. First operand 9518 states and 33300 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:06,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:06,024 INFO L93 Difference]: Finished difference Result 9244 states and 32213 transitions. [2022-02-18 14:47:06,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:47:06,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:06,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:06,050 INFO L225 Difference]: With dead ends: 9244 [2022-02-18 14:47:06,051 INFO L226 Difference]: Without dead ends: 9244 [2022-02-18 14:47:06,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:47:06,051 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 20 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:06,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 272 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:47:06,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9244 states. [2022-02-18 14:47:06,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9244 to 9244. [2022-02-18 14:47:06,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9244 states, 9243 states have (on average 3.485123877528941) internal successors, (32213), 9243 states have internal predecessors, (32213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:06,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 32213 transitions. [2022-02-18 14:47:06,244 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 32213 transitions. Word has length 182 [2022-02-18 14:47:06,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:06,245 INFO L470 AbstractCegarLoop]: Abstraction has 9244 states and 32213 transitions. [2022-02-18 14:47:06,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:06,245 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 32213 transitions. [2022-02-18 14:47:06,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:06,265 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:06,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:06,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-18 14:47:06,266 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:06,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:06,266 INFO L85 PathProgramCache]: Analyzing trace with hash 994364243, now seen corresponding path program 20 times [2022-02-18 14:47:06,266 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:06,266 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674060832] [2022-02-18 14:47:06,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:06,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:06,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:06,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:06,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674060832] [2022-02-18 14:47:06,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674060832] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:06,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:06,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 14:47:06,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195382756] [2022-02-18 14:47:06,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:06,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 14:47:06,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:06,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 14:47:06,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:47:06,333 INFO L87 Difference]: Start difference. First operand 9244 states and 32213 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:06,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:06,400 INFO L93 Difference]: Finished difference Result 8392 states and 28671 transitions. [2022-02-18 14:47:06,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 14:47:06,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:06,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:06,425 INFO L225 Difference]: With dead ends: 8392 [2022-02-18 14:47:06,425 INFO L226 Difference]: Without dead ends: 8392 [2022-02-18 14:47:06,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 14:47:06,427 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 38 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:06,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 243 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:47:06,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8392 states. [2022-02-18 14:47:06,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8392 to 8392. [2022-02-18 14:47:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8392 states, 8391 states have (on average 3.4168752234537005) internal successors, (28671), 8391 states have internal predecessors, (28671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:06,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8392 states to 8392 states and 28671 transitions. [2022-02-18 14:47:06,575 INFO L78 Accepts]: Start accepts. Automaton has 8392 states and 28671 transitions. Word has length 182 [2022-02-18 14:47:06,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:06,575 INFO L470 AbstractCegarLoop]: Abstraction has 8392 states and 28671 transitions. [2022-02-18 14:47:06,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:06,575 INFO L276 IsEmpty]: Start isEmpty. Operand 8392 states and 28671 transitions. [2022-02-18 14:47:06,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:06,590 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:06,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:06,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-18 14:47:06,590 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:06,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:06,590 INFO L85 PathProgramCache]: Analyzing trace with hash 418727083, now seen corresponding path program 21 times [2022-02-18 14:47:06,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:06,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557175811] [2022-02-18 14:47:06,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:06,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:06,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:06,966 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:06,966 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557175811] [2022-02-18 14:47:06,966 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557175811] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:06,966 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:06,966 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:06,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575843409] [2022-02-18 14:47:06,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:06,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:06,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:06,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:06,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:06,969 INFO L87 Difference]: Start difference. First operand 8392 states and 28671 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:07,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:07,371 INFO L93 Difference]: Finished difference Result 10386 states and 35499 transitions. [2022-02-18 14:47:07,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:07,372 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:07,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:07,396 INFO L225 Difference]: With dead ends: 10386 [2022-02-18 14:47:07,396 INFO L226 Difference]: Without dead ends: 10236 [2022-02-18 14:47:07,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:07,397 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 291 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:07,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2377 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:07,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10236 states. [2022-02-18 14:47:07,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10236 to 8560. [2022-02-18 14:47:07,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8559 states have (on average 3.4192078513845074) internal successors, (29265), 8559 states have internal predecessors, (29265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 29265 transitions. [2022-02-18 14:47:07,566 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 29265 transitions. Word has length 182 [2022-02-18 14:47:07,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:07,566 INFO L470 AbstractCegarLoop]: Abstraction has 8560 states and 29265 transitions. [2022-02-18 14:47:07,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:07,566 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 29265 transitions. [2022-02-18 14:47:07,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:07,581 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:07,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:07,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-18 14:47:07,582 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:07,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:07,582 INFO L85 PathProgramCache]: Analyzing trace with hash 833510313, now seen corresponding path program 22 times [2022-02-18 14:47:07,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:07,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695029538] [2022-02-18 14:47:07,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:07,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:07,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:07,960 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:07,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695029538] [2022-02-18 14:47:07,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695029538] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:07,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:07,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:07,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339044375] [2022-02-18 14:47:07,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:07,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:07,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:07,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:07,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:07,961 INFO L87 Difference]: Start difference. First operand 8560 states and 29265 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:08,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:08,332 INFO L93 Difference]: Finished difference Result 10404 states and 35598 transitions. [2022-02-18 14:47:08,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:08,333 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:08,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:08,357 INFO L225 Difference]: With dead ends: 10404 [2022-02-18 14:47:08,358 INFO L226 Difference]: Without dead ends: 10218 [2022-02-18 14:47:08,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:08,358 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 476 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:08,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1989 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:08,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2022-02-18 14:47:08,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 8536. [2022-02-18 14:47:08,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.4192149970708847) internal successors, (29183), 8535 states have internal predecessors, (29183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:08,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29183 transitions. [2022-02-18 14:47:08,552 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29183 transitions. Word has length 182 [2022-02-18 14:47:08,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:08,552 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29183 transitions. [2022-02-18 14:47:08,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:08,552 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29183 transitions. [2022-02-18 14:47:08,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:08,567 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:08,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:08,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-18 14:47:08,568 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:08,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:08,568 INFO L85 PathProgramCache]: Analyzing trace with hash -700910965, now seen corresponding path program 23 times [2022-02-18 14:47:08,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:08,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178794495] [2022-02-18 14:47:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:08,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:09,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:09,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:09,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178794495] [2022-02-18 14:47:09,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178794495] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:09,009 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:09,009 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:09,009 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602841821] [2022-02-18 14:47:09,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:09,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:09,009 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:09,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:09,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:09,010 INFO L87 Difference]: Start difference. First operand 8536 states and 29183 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:09,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:09,463 INFO L93 Difference]: Finished difference Result 10566 states and 36099 transitions. [2022-02-18 14:47:09,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:09,463 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:09,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:09,488 INFO L225 Difference]: With dead ends: 10566 [2022-02-18 14:47:09,488 INFO L226 Difference]: Without dead ends: 10416 [2022-02-18 14:47:09,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:09,489 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 279 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:09,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2699 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:09,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10416 states. [2022-02-18 14:47:09,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10416 to 8566. [2022-02-18 14:47:09,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8566 states, 8565 states have (on average 3.422416812609457) internal successors, (29313), 8565 states have internal predecessors, (29313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:09,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8566 states to 8566 states and 29313 transitions. [2022-02-18 14:47:09,658 INFO L78 Accepts]: Start accepts. Automaton has 8566 states and 29313 transitions. Word has length 182 [2022-02-18 14:47:09,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:09,658 INFO L470 AbstractCegarLoop]: Abstraction has 8566 states and 29313 transitions. [2022-02-18 14:47:09,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:09,658 INFO L276 IsEmpty]: Start isEmpty. Operand 8566 states and 29313 transitions. [2022-02-18 14:47:09,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:09,673 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:09,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:09,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-18 14:47:09,674 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:09,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:09,674 INFO L85 PathProgramCache]: Analyzing trace with hash -301280951, now seen corresponding path program 24 times [2022-02-18 14:47:09,675 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:09,675 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612669850] [2022-02-18 14:47:09,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:09,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:10,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:10,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:10,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612669850] [2022-02-18 14:47:10,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612669850] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:10,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:10,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:10,199 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999808360] [2022-02-18 14:47:10,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:10,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:10,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:10,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:10,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:10,200 INFO L87 Difference]: Start difference. First operand 8566 states and 29313 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:10,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:10,551 INFO L93 Difference]: Finished difference Result 11160 states and 38145 transitions. [2022-02-18 14:47:10,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:10,552 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:10,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:10,578 INFO L225 Difference]: With dead ends: 11160 [2022-02-18 14:47:10,578 INFO L226 Difference]: Without dead ends: 11010 [2022-02-18 14:47:10,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:10,579 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 514 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:10,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 2045 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:10,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-02-18 14:47:10,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8536. [2022-02-18 14:47:10,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.4192149970708847) internal successors, (29183), 8535 states have internal predecessors, (29183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29183 transitions. [2022-02-18 14:47:10,758 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29183 transitions. Word has length 182 [2022-02-18 14:47:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:10,758 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29183 transitions. [2022-02-18 14:47:10,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29183 transitions. [2022-02-18 14:47:10,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:10,773 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:10,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:10,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-18 14:47:10,773 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:10,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:10,791 INFO L85 PathProgramCache]: Analyzing trace with hash -951729653, now seen corresponding path program 25 times [2022-02-18 14:47:10,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:10,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852064019] [2022-02-18 14:47:10,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:10,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:11,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:11,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852064019] [2022-02-18 14:47:11,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852064019] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:11,247 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:11,247 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:11,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68104214] [2022-02-18 14:47:11,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:11,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:11,248 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:11,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:11,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:11,248 INFO L87 Difference]: Start difference. First operand 8536 states and 29183 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:11,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:11,591 INFO L93 Difference]: Finished difference Result 10584 states and 36285 transitions. [2022-02-18 14:47:11,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:11,592 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:11,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:11,616 INFO L225 Difference]: With dead ends: 10584 [2022-02-18 14:47:11,616 INFO L226 Difference]: Without dead ends: 10398 [2022-02-18 14:47:11,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:11,617 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 281 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:11,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 2495 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:11,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2022-02-18 14:47:11,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 8552. [2022-02-18 14:47:11,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8552 states, 8551 states have (on average 3.4203017190971816) internal successors, (29247), 8551 states have internal predecessors, (29247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:11,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8552 states to 8552 states and 29247 transitions. [2022-02-18 14:47:11,784 INFO L78 Accepts]: Start accepts. Automaton has 8552 states and 29247 transitions. Word has length 182 [2022-02-18 14:47:11,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:11,784 INFO L470 AbstractCegarLoop]: Abstraction has 8552 states and 29247 transitions. [2022-02-18 14:47:11,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:11,784 INFO L276 IsEmpty]: Start isEmpty. Operand 8552 states and 29247 transitions. [2022-02-18 14:47:11,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:11,799 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:11,799 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:11,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-18 14:47:11,799 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:11,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:11,800 INFO L85 PathProgramCache]: Analyzing trace with hash -114986613, now seen corresponding path program 26 times [2022-02-18 14:47:11,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:11,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901550059] [2022-02-18 14:47:11,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:11,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:12,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:12,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901550059] [2022-02-18 14:47:12,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901550059] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:12,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:12,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:12,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811252117] [2022-02-18 14:47:12,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:12,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:12,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:12,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:12,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:12,288 INFO L87 Difference]: Start difference. First operand 8552 states and 29247 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:12,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:12,700 INFO L93 Difference]: Finished difference Result 11160 states and 38220 transitions. [2022-02-18 14:47:12,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:12,700 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:12,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:12,726 INFO L225 Difference]: With dead ends: 11160 [2022-02-18 14:47:12,727 INFO L226 Difference]: Without dead ends: 11010 [2022-02-18 14:47:12,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:12,732 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 469 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:12,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 2313 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-02-18 14:47:12,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8528. [2022-02-18 14:47:12,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4179664594816463) internal successors, (29145), 8527 states have internal predecessors, (29145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:12,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29145 transitions. [2022-02-18 14:47:12,905 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29145 transitions. Word has length 182 [2022-02-18 14:47:12,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:12,906 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29145 transitions. [2022-02-18 14:47:12,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:12,906 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29145 transitions. [2022-02-18 14:47:12,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:12,921 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:12,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:12,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-18 14:47:12,921 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:12,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:12,921 INFO L85 PathProgramCache]: Analyzing trace with hash -922837013, now seen corresponding path program 27 times [2022-02-18 14:47:12,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:12,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995797321] [2022-02-18 14:47:12,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:12,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:13,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:13,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:13,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995797321] [2022-02-18 14:47:13,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995797321] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:13,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:13,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:13,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148353993] [2022-02-18 14:47:13,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:13,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:13,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:13,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:13,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:13,454 INFO L87 Difference]: Start difference. First operand 8528 states and 29145 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:13,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:13,852 INFO L93 Difference]: Finished difference Result 10698 states and 36474 transitions. [2022-02-18 14:47:13,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:13,852 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:13,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:13,877 INFO L225 Difference]: With dead ends: 10698 [2022-02-18 14:47:13,877 INFO L226 Difference]: Without dead ends: 10548 [2022-02-18 14:47:13,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:13,878 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 444 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:13,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 2424 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:13,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-02-18 14:47:14,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 8588. [2022-02-18 14:47:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8587 states have (on average 3.420868755094911) internal successors, (29375), 8587 states have internal predecessors, (29375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:14,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 29375 transitions. [2022-02-18 14:47:14,049 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 29375 transitions. Word has length 182 [2022-02-18 14:47:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:14,049 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 29375 transitions. [2022-02-18 14:47:14,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:14,050 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 29375 transitions. [2022-02-18 14:47:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:14,065 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:14,065 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:14,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-18 14:47:14,065 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:14,065 INFO L85 PathProgramCache]: Analyzing trace with hash -523206999, now seen corresponding path program 28 times [2022-02-18 14:47:14,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:14,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883895159] [2022-02-18 14:47:14,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:14,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:14,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:14,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883895159] [2022-02-18 14:47:14,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883895159] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:14,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:14,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:14,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513070937] [2022-02-18 14:47:14,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:14,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:14,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:14,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:14,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:14,519 INFO L87 Difference]: Start difference. First operand 8588 states and 29375 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:14,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:14,885 INFO L93 Difference]: Finished difference Result 11382 states and 38790 transitions. [2022-02-18 14:47:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:14,886 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:14,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:14,915 INFO L225 Difference]: With dead ends: 11382 [2022-02-18 14:47:14,915 INFO L226 Difference]: Without dead ends: 11232 [2022-02-18 14:47:14,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:14,916 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 446 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:14,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 2426 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:14,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11232 states. [2022-02-18 14:47:15,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11232 to 8558. [2022-02-18 14:47:15,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8557 states have (on average 3.4176697440691832) internal successors, (29245), 8557 states have internal predecessors, (29245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 29245 transitions. [2022-02-18 14:47:15,091 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 29245 transitions. Word has length 182 [2022-02-18 14:47:15,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:15,091 INFO L470 AbstractCegarLoop]: Abstraction has 8558 states and 29245 transitions. [2022-02-18 14:47:15,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 29245 transitions. [2022-02-18 14:47:15,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:15,107 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:15,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:15,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-18 14:47:15,107 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:15,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:15,108 INFO L85 PathProgramCache]: Analyzing trace with hash 2124387601, now seen corresponding path program 29 times [2022-02-18 14:47:15,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:15,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945397192] [2022-02-18 14:47:15,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:15,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:15,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:15,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:15,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945397192] [2022-02-18 14:47:15,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945397192] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:15,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:15,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:15,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505828393] [2022-02-18 14:47:15,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:15,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:15,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:15,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:15,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:15,635 INFO L87 Difference]: Start difference. First operand 8558 states and 29245 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:16,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:16,000 INFO L93 Difference]: Finished difference Result 11484 states and 39204 transitions. [2022-02-18 14:47:16,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:16,001 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:16,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:16,028 INFO L225 Difference]: With dead ends: 11484 [2022-02-18 14:47:16,028 INFO L226 Difference]: Without dead ends: 11334 [2022-02-18 14:47:16,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:16,029 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 457 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:16,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 2216 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:16,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-02-18 14:47:16,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8528. [2022-02-18 14:47:16,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4179664594816463) internal successors, (29145), 8527 states have internal predecessors, (29145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:16,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29145 transitions. [2022-02-18 14:47:16,233 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29145 transitions. Word has length 182 [2022-02-18 14:47:16,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:16,233 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29145 transitions. [2022-02-18 14:47:16,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:16,233 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29145 transitions. [2022-02-18 14:47:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:16,248 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:16,248 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:16,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-18 14:47:16,248 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:16,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:16,249 INFO L85 PathProgramCache]: Analyzing trace with hash 306501481, now seen corresponding path program 30 times [2022-02-18 14:47:16,249 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:16,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374027272] [2022-02-18 14:47:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:16,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:16,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:16,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:16,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374027272] [2022-02-18 14:47:16,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374027272] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:16,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:16,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:16,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477838265] [2022-02-18 14:47:16,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:16,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:16,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:16,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:16,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:16,607 INFO L87 Difference]: Start difference. First operand 8528 states and 29145 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:17,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:17,023 INFO L93 Difference]: Finished difference Result 10608 states and 36399 transitions. [2022-02-18 14:47:17,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:17,024 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:17,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:17,048 INFO L225 Difference]: With dead ends: 10608 [2022-02-18 14:47:17,049 INFO L226 Difference]: Without dead ends: 10422 [2022-02-18 14:47:17,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:17,049 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 318 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:17,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 2365 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:17,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10422 states. [2022-02-18 14:47:17,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10422 to 8560. [2022-02-18 14:47:17,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8559 states have (on average 3.419675195700432) internal successors, (29269), 8559 states have internal predecessors, (29269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:17,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 29269 transitions. [2022-02-18 14:47:17,219 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 29269 transitions. Word has length 182 [2022-02-18 14:47:17,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:17,219 INFO L470 AbstractCegarLoop]: Abstraction has 8560 states and 29269 transitions. [2022-02-18 14:47:17,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:17,219 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 29269 transitions. [2022-02-18 14:47:17,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:17,234 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:17,234 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:17,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-18 14:47:17,234 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:17,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:17,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1143244521, now seen corresponding path program 31 times [2022-02-18 14:47:17,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:17,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158090863] [2022-02-18 14:47:17,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:17,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:17,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:17,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:17,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158090863] [2022-02-18 14:47:17,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158090863] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:17,736 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:17,736 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:17,736 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331294773] [2022-02-18 14:47:17,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:17,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:17,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:17,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:17,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:17,737 INFO L87 Difference]: Start difference. First operand 8560 states and 29269 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:18,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:18,234 INFO L93 Difference]: Finished difference Result 11256 states and 38580 transitions. [2022-02-18 14:47:18,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:18,235 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:18,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:18,262 INFO L225 Difference]: With dead ends: 11256 [2022-02-18 14:47:18,262 INFO L226 Difference]: Without dead ends: 11106 [2022-02-18 14:47:18,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:18,262 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 358 mSDsluCounter, 2857 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:18,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 2787 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-18 14:47:18,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11106 states. [2022-02-18 14:47:18,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11106 to 8544. [2022-02-18 14:47:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8544 states, 8543 states have (on average 3.418588317921105) internal successors, (29205), 8543 states have internal predecessors, (29205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:18,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8544 states to 8544 states and 29205 transitions. [2022-02-18 14:47:18,435 INFO L78 Accepts]: Start accepts. Automaton has 8544 states and 29205 transitions. Word has length 182 [2022-02-18 14:47:18,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:18,436 INFO L470 AbstractCegarLoop]: Abstraction has 8544 states and 29205 transitions. [2022-02-18 14:47:18,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:18,436 INFO L276 IsEmpty]: Start isEmpty. Operand 8544 states and 29205 transitions. [2022-02-18 14:47:18,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:18,451 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:18,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:18,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-18 14:47:18,451 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:18,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:18,451 INFO L85 PathProgramCache]: Analyzing trace with hash -690422513, now seen corresponding path program 32 times [2022-02-18 14:47:18,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:18,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304068549] [2022-02-18 14:47:18,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:18,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:18,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:18,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304068549] [2022-02-18 14:47:18,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304068549] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:18,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:18,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:18,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010224350] [2022-02-18 14:47:18,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:18,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:18,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:18,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:18,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:18,937 INFO L87 Difference]: Start difference. First operand 8544 states and 29205 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:19,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:19,353 INFO L93 Difference]: Finished difference Result 11358 states and 38919 transitions. [2022-02-18 14:47:19,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:19,354 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:19,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:19,380 INFO L225 Difference]: With dead ends: 11358 [2022-02-18 14:47:19,380 INFO L226 Difference]: Without dead ends: 11208 [2022-02-18 14:47:19,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:19,381 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 357 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:19,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 2490 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:19,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11208 states. [2022-02-18 14:47:19,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11208 to 8520. [2022-02-18 14:47:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.417654654302148) internal successors, (29115), 8519 states have internal predecessors, (29115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:19,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29115 transitions. [2022-02-18 14:47:19,553 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29115 transitions. Word has length 182 [2022-02-18 14:47:19,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:19,553 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29115 transitions. [2022-02-18 14:47:19,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:19,554 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29115 transitions. [2022-02-18 14:47:19,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:19,569 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:19,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:19,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-18 14:47:19,569 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:19,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:19,569 INFO L85 PathProgramCache]: Analyzing trace with hash 501633739, now seen corresponding path program 33 times [2022-02-18 14:47:19,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:19,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764727665] [2022-02-18 14:47:19,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:19,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:20,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:20,040 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:20,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764727665] [2022-02-18 14:47:20,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764727665] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:20,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:20,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:20,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842646534] [2022-02-18 14:47:20,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:20,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:20,060 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:20,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:20,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:20,060 INFO L87 Difference]: Start difference. First operand 8520 states and 29115 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:20,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:20,441 INFO L93 Difference]: Finished difference Result 10690 states and 36444 transitions. [2022-02-18 14:47:20,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:20,441 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:20,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:20,465 INFO L225 Difference]: With dead ends: 10690 [2022-02-18 14:47:20,465 INFO L226 Difference]: Without dead ends: 10540 [2022-02-18 14:47:20,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:47:20,466 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 407 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:20,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2354 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:20,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10540 states. [2022-02-18 14:47:20,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10540 to 8820. [2022-02-18 14:47:20,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8820 states, 8819 states have (on average 3.409683637600635) internal successors, (30070), 8819 states have internal predecessors, (30070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:20,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8820 states to 8820 states and 30070 transitions. [2022-02-18 14:47:20,629 INFO L78 Accepts]: Start accepts. Automaton has 8820 states and 30070 transitions. Word has length 182 [2022-02-18 14:47:20,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:20,629 INFO L470 AbstractCegarLoop]: Abstraction has 8820 states and 30070 transitions. [2022-02-18 14:47:20,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:20,629 INFO L276 IsEmpty]: Start isEmpty. Operand 8820 states and 30070 transitions. [2022-02-18 14:47:20,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:20,644 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:20,644 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:20,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-18 14:47:20,645 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:20,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:20,645 INFO L85 PathProgramCache]: Analyzing trace with hash 901263753, now seen corresponding path program 34 times [2022-02-18 14:47:20,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:20,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040499394] [2022-02-18 14:47:20,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:20,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:21,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:21,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:21,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040499394] [2022-02-18 14:47:21,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040499394] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:21,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:21,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:21,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818900461] [2022-02-18 14:47:21,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:21,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:21,112 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:21,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:21,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:21,113 INFO L87 Difference]: Start difference. First operand 8820 states and 30070 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:21,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:21,534 INFO L93 Difference]: Finished difference Result 11550 states and 39376 transitions. [2022-02-18 14:47:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:21,535 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:21,568 INFO L225 Difference]: With dead ends: 11550 [2022-02-18 14:47:21,568 INFO L226 Difference]: Without dead ends: 11400 [2022-02-18 14:47:21,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:21,569 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 437 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:21,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2583 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:21,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11400 states. [2022-02-18 14:47:21,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11400 to 8790. [2022-02-18 14:47:21,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8790 states, 8789 states have (on average 3.406530890886335) internal successors, (29940), 8789 states have internal predecessors, (29940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:21,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8790 states to 8790 states and 29940 transitions. [2022-02-18 14:47:21,748 INFO L78 Accepts]: Start accepts. Automaton has 8790 states and 29940 transitions. Word has length 182 [2022-02-18 14:47:21,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:21,749 INFO L470 AbstractCegarLoop]: Abstraction has 8790 states and 29940 transitions. [2022-02-18 14:47:21,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:21,749 INFO L276 IsEmpty]: Start isEmpty. Operand 8790 states and 29940 transitions. [2022-02-18 14:47:21,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:21,764 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:21,764 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:21,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-18 14:47:21,764 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:21,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:21,765 INFO L85 PathProgramCache]: Analyzing trace with hash -746108943, now seen corresponding path program 35 times [2022-02-18 14:47:21,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:21,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473314095] [2022-02-18 14:47:21,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:21,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:22,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:22,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:22,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473314095] [2022-02-18 14:47:22,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473314095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:22,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:22,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:22,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856883646] [2022-02-18 14:47:22,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:22,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:22,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:22,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:22,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:22,251 INFO L87 Difference]: Start difference. First operand 8790 states and 29940 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:22,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:22,700 INFO L93 Difference]: Finished difference Result 11685 states and 39866 transitions. [2022-02-18 14:47:22,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:22,700 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:22,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:22,727 INFO L225 Difference]: With dead ends: 11685 [2022-02-18 14:47:22,727 INFO L226 Difference]: Without dead ends: 11535 [2022-02-18 14:47:22,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:22,728 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 468 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:22,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [468 Valid, 2252 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:22,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11535 states. [2022-02-18 14:47:22,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11535 to 8760. [2022-02-18 14:47:22,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8760 states, 8759 states have (on average 3.406781596072611) internal successors, (29840), 8759 states have internal predecessors, (29840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:22,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8760 states to 8760 states and 29840 transitions. [2022-02-18 14:47:22,905 INFO L78 Accepts]: Start accepts. Automaton has 8760 states and 29840 transitions. Word has length 182 [2022-02-18 14:47:22,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:22,905 INFO L470 AbstractCegarLoop]: Abstraction has 8760 states and 29840 transitions. [2022-02-18 14:47:22,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:22,905 INFO L276 IsEmpty]: Start isEmpty. Operand 8760 states and 29840 transitions. [2022-02-18 14:47:22,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:22,921 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:22,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:22,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-18 14:47:22,921 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:22,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:22,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1833174183, now seen corresponding path program 36 times [2022-02-18 14:47:22,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:22,922 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154202956] [2022-02-18 14:47:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:22,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:23,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:23,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:23,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154202956] [2022-02-18 14:47:23,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154202956] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:23,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:23,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:23,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123188540] [2022-02-18 14:47:23,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:23,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:23,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:23,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:23,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:23,391 INFO L87 Difference]: Start difference. First operand 8760 states and 29840 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:23,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:23,894 INFO L93 Difference]: Finished difference Result 11454 states and 39104 transitions. [2022-02-18 14:47:23,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:23,895 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:23,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:23,920 INFO L225 Difference]: With dead ends: 11454 [2022-02-18 14:47:23,921 INFO L226 Difference]: Without dead ends: 11304 [2022-02-18 14:47:23,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:23,922 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 364 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:23,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 2555 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:23,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11304 states. [2022-02-18 14:47:24,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11304 to 8520. [2022-02-18 14:47:24,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.417654654302148) internal successors, (29115), 8519 states have internal predecessors, (29115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:24,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29115 transitions. [2022-02-18 14:47:24,127 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29115 transitions. Word has length 182 [2022-02-18 14:47:24,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:24,127 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29115 transitions. [2022-02-18 14:47:24,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:24,127 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29115 transitions. [2022-02-18 14:47:24,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:24,142 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:24,142 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:24,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-18 14:47:24,142 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:24,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:24,143 INFO L85 PathProgramCache]: Analyzing trace with hash 371204619, now seen corresponding path program 37 times [2022-02-18 14:47:24,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:24,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745205265] [2022-02-18 14:47:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:24,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:24,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:24,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:24,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745205265] [2022-02-18 14:47:24,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745205265] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:24,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:24,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:24,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639553741] [2022-02-18 14:47:24,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:24,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:24,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:24,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:24,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:24,519 INFO L87 Difference]: Start difference. First operand 8520 states and 29115 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:24,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:24,901 INFO L93 Difference]: Finished difference Result 10600 states and 36369 transitions. [2022-02-18 14:47:24,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:24,902 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:24,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:24,924 INFO L225 Difference]: With dead ends: 10600 [2022-02-18 14:47:24,924 INFO L226 Difference]: Without dead ends: 10414 [2022-02-18 14:47:24,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:47:24,925 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 375 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:24,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 2154 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:24,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10414 states. [2022-02-18 14:47:25,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10414 to 8600. [2022-02-18 14:47:25,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8599 states have (on average 3.421211768810327) internal successors, (29419), 8599 states have internal predecessors, (29419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:25,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 29419 transitions. [2022-02-18 14:47:25,068 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 29419 transitions. Word has length 182 [2022-02-18 14:47:25,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:25,068 INFO L470 AbstractCegarLoop]: Abstraction has 8600 states and 29419 transitions. [2022-02-18 14:47:25,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:25,069 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 29419 transitions. [2022-02-18 14:47:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:25,083 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:25,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:25,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-18 14:47:25,083 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:25,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1207947659, now seen corresponding path program 38 times [2022-02-18 14:47:25,084 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:25,084 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877358079] [2022-02-18 14:47:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:25,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:25,618 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:25,619 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:25,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877358079] [2022-02-18 14:47:25,619 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877358079] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:25,619 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:25,619 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:25,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403691583] [2022-02-18 14:47:25,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:25,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:25,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:25,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:25,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:25,620 INFO L87 Difference]: Start difference. First operand 8600 states and 29419 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:26,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:26,106 INFO L93 Difference]: Finished difference Result 11396 states and 39060 transitions. [2022-02-18 14:47:26,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:26,106 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:26,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:26,134 INFO L225 Difference]: With dead ends: 11396 [2022-02-18 14:47:26,134 INFO L226 Difference]: Without dead ends: 11246 [2022-02-18 14:47:26,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:26,135 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 482 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:26,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 2410 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:26,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11246 states. [2022-02-18 14:47:26,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11246 to 8584. [2022-02-18 14:47:26,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 8583 states have (on average 3.4201328206920656) internal successors, (29355), 8583 states have internal predecessors, (29355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 29355 transitions. [2022-02-18 14:47:26,312 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 29355 transitions. Word has length 182 [2022-02-18 14:47:26,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:26,312 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 29355 transitions. [2022-02-18 14:47:26,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:26,312 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 29355 transitions. [2022-02-18 14:47:26,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:26,327 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:26,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:26,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-18 14:47:26,327 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:26,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:26,328 INFO L85 PathProgramCache]: Analyzing trace with hash -625719375, now seen corresponding path program 39 times [2022-02-18 14:47:26,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:26,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431690794] [2022-02-18 14:47:26,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:26,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:26,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:26,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:26,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431690794] [2022-02-18 14:47:26,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431690794] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:26,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:26,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:26,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128116956] [2022-02-18 14:47:26,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:26,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:26,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:26,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:26,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:26,824 INFO L87 Difference]: Start difference. First operand 8584 states and 29355 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:27,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:27,210 INFO L93 Difference]: Finished difference Result 11545 states and 39541 transitions. [2022-02-18 14:47:27,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:27,211 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:27,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:27,239 INFO L225 Difference]: With dead ends: 11545 [2022-02-18 14:47:27,239 INFO L226 Difference]: Without dead ends: 11395 [2022-02-18 14:47:27,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:27,240 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 488 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:27,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2322 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:27,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11395 states. [2022-02-18 14:47:27,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11395 to 8568. [2022-02-18 14:47:27,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8568 states, 8567 states have (on average 3.4195167503209993) internal successors, (29295), 8567 states have internal predecessors, (29295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8568 states to 8568 states and 29295 transitions. [2022-02-18 14:47:27,416 INFO L78 Accepts]: Start accepts. Automaton has 8568 states and 29295 transitions. Word has length 182 [2022-02-18 14:47:27,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:27,416 INFO L470 AbstractCegarLoop]: Abstraction has 8568 states and 29295 transitions. [2022-02-18 14:47:27,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:27,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8568 states and 29295 transitions. [2022-02-18 14:47:27,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:27,432 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:27,432 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:27,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-18 14:47:27,433 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:27,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:27,433 INFO L85 PathProgramCache]: Analyzing trace with hash 473406569, now seen corresponding path program 40 times [2022-02-18 14:47:27,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:27,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076772506] [2022-02-18 14:47:27,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:27,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:27,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:27,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:27,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076772506] [2022-02-18 14:47:27,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076772506] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:27,934 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:27,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:27,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892558482] [2022-02-18 14:47:27,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:27,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:27,935 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:27,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:27,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:27,935 INFO L87 Difference]: Start difference. First operand 8568 states and 29295 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:28,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:28,434 INFO L93 Difference]: Finished difference Result 11322 states and 38784 transitions. [2022-02-18 14:47:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:28,434 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:28,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:28,461 INFO L225 Difference]: With dead ends: 11322 [2022-02-18 14:47:28,461 INFO L226 Difference]: Without dead ends: 11172 [2022-02-18 14:47:28,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:28,462 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 384 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:28,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 2464 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:28,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11172 states. [2022-02-18 14:47:28,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11172 to 8424. [2022-02-18 14:47:28,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8424 states, 8423 states have (on average 3.4190905853021487) internal successors, (28799), 8423 states have internal predecessors, (28799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:28,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8424 states to 8424 states and 28799 transitions. [2022-02-18 14:47:28,641 INFO L78 Accepts]: Start accepts. Automaton has 8424 states and 28799 transitions. Word has length 182 [2022-02-18 14:47:28,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:28,641 INFO L470 AbstractCegarLoop]: Abstraction has 8424 states and 28799 transitions. [2022-02-18 14:47:28,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:28,642 INFO L276 IsEmpty]: Start isEmpty. Operand 8424 states and 28799 transitions. [2022-02-18 14:47:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:28,657 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:28,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:28,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-18 14:47:28,658 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:28,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:28,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1916046689, now seen corresponding path program 41 times [2022-02-18 14:47:28,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:28,658 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599676393] [2022-02-18 14:47:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:28,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:29,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:29,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:29,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599676393] [2022-02-18 14:47:29,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599676393] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:29,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:29,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:29,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292252553] [2022-02-18 14:47:29,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:29,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:29,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:29,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:29,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:29,119 INFO L87 Difference]: Start difference. First operand 8424 states and 28799 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:29,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:29,491 INFO L93 Difference]: Finished difference Result 10282 states and 35153 transitions. [2022-02-18 14:47:29,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:29,491 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:29,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:29,516 INFO L225 Difference]: With dead ends: 10282 [2022-02-18 14:47:29,517 INFO L226 Difference]: Without dead ends: 10132 [2022-02-18 14:47:29,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:29,517 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 505 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:29,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 1919 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:29,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10132 states. [2022-02-18 14:47:29,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10132 to 8528. [2022-02-18 14:47:29,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.420781048434385) internal successors, (29169), 8527 states have internal predecessors, (29169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:29,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29169 transitions. [2022-02-18 14:47:29,688 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29169 transitions. Word has length 182 [2022-02-18 14:47:29,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:29,688 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29169 transitions. [2022-02-18 14:47:29,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:29,688 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29169 transitions. [2022-02-18 14:47:29,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:29,703 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:29,703 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:29,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-18 14:47:29,704 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:29,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:29,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1501263459, now seen corresponding path program 42 times [2022-02-18 14:47:29,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:29,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520756689] [2022-02-18 14:47:29,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:29,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:30,085 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:30,085 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520756689] [2022-02-18 14:47:30,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520756689] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:30,086 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:30,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:30,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312940971] [2022-02-18 14:47:30,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:30,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:30,086 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:30,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:30,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:30,087 INFO L87 Difference]: Start difference. First operand 8528 states and 29169 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:30,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:30,426 INFO L93 Difference]: Finished difference Result 10300 states and 35252 transitions. [2022-02-18 14:47:30,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:30,426 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:30,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:30,450 INFO L225 Difference]: With dead ends: 10300 [2022-02-18 14:47:30,450 INFO L226 Difference]: Without dead ends: 10114 [2022-02-18 14:47:30,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:47:30,451 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 451 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:30,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 1869 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:30,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10114 states. [2022-02-18 14:47:30,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10114 to 8504. [2022-02-18 14:47:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8503 states have (on average 3.4207926614136186) internal successors, (29087), 8503 states have internal predecessors, (29087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:30,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 29087 transitions. [2022-02-18 14:47:30,620 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 29087 transitions. Word has length 182 [2022-02-18 14:47:30,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:30,620 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 29087 transitions. [2022-02-18 14:47:30,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:30,621 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 29087 transitions. [2022-02-18 14:47:30,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:30,636 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:30,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:30,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-18 14:47:30,636 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:30,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:30,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1259282559, now seen corresponding path program 43 times [2022-02-18 14:47:30,636 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:30,636 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974094103] [2022-02-18 14:47:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:30,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:31,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:31,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:31,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974094103] [2022-02-18 14:47:31,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974094103] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:31,019 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:31,019 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:31,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031367645] [2022-02-18 14:47:31,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:31,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:31,020 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:31,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:31,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:31,020 INFO L87 Difference]: Start difference. First operand 8504 states and 29087 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:31,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:31,432 INFO L93 Difference]: Finished difference Result 10462 states and 35753 transitions. [2022-02-18 14:47:31,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:31,432 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:31,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:31,457 INFO L225 Difference]: With dead ends: 10462 [2022-02-18 14:47:31,457 INFO L226 Difference]: Without dead ends: 10312 [2022-02-18 14:47:31,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:31,458 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 331 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:31,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2247 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:31,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10312 states. [2022-02-18 14:47:31,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10312 to 8534. [2022-02-18 14:47:31,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8534 states, 8533 states have (on average 3.4240009375366225) internal successors, (29217), 8533 states have internal predecessors, (29217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:31,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8534 states to 8534 states and 29217 transitions. [2022-02-18 14:47:31,706 INFO L78 Accepts]: Start accepts. Automaton has 8534 states and 29217 transitions. Word has length 182 [2022-02-18 14:47:31,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:31,706 INFO L470 AbstractCegarLoop]: Abstraction has 8534 states and 29217 transitions. [2022-02-18 14:47:31,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:31,707 INFO L276 IsEmpty]: Start isEmpty. Operand 8534 states and 29217 transitions. [2022-02-18 14:47:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:31,724 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:31,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:31,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-18 14:47:31,724 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:31,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:31,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1658912573, now seen corresponding path program 44 times [2022-02-18 14:47:31,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:31,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614341214] [2022-02-18 14:47:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:31,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:32,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:32,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:32,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614341214] [2022-02-18 14:47:32,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614341214] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:32,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:32,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:32,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749641498] [2022-02-18 14:47:32,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:32,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:32,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:32,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:32,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:32,147 INFO L87 Difference]: Start difference. First operand 8534 states and 29217 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:32,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:32,538 INFO L93 Difference]: Finished difference Result 11056 states and 37799 transitions. [2022-02-18 14:47:32,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:32,538 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:32,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:32,565 INFO L225 Difference]: With dead ends: 11056 [2022-02-18 14:47:32,565 INFO L226 Difference]: Without dead ends: 10906 [2022-02-18 14:47:32,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:47:32,565 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 370 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:32,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 2135 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:32,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2022-02-18 14:47:32,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 8504. [2022-02-18 14:47:32,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8503 states have (on average 3.4207926614136186) internal successors, (29087), 8503 states have internal predecessors, (29087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:32,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 29087 transitions. [2022-02-18 14:47:32,739 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 29087 transitions. Word has length 182 [2022-02-18 14:47:32,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:32,739 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 29087 transitions. [2022-02-18 14:47:32,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 29087 transitions. [2022-02-18 14:47:32,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:32,755 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:32,755 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:32,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-18 14:47:32,755 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:32,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:32,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1008463871, now seen corresponding path program 45 times [2022-02-18 14:47:32,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:32,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982468848] [2022-02-18 14:47:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:32,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:33,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:33,135 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:33,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982468848] [2022-02-18 14:47:33,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982468848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:33,135 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:33,135 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:33,135 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414223032] [2022-02-18 14:47:33,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:33,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:33,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:33,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:33,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:33,136 INFO L87 Difference]: Start difference. First operand 8504 states and 29087 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:33,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:33,477 INFO L93 Difference]: Finished difference Result 10480 states and 35939 transitions. [2022-02-18 14:47:33,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:33,477 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:33,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:33,501 INFO L225 Difference]: With dead ends: 10480 [2022-02-18 14:47:33,502 INFO L226 Difference]: Without dead ends: 10294 [2022-02-18 14:47:33,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:47:33,502 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 363 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:33,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 1866 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:33,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10294 states. [2022-02-18 14:47:33,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10294 to 8520. [2022-02-18 14:47:33,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.4218805024063856) internal successors, (29151), 8519 states have internal predecessors, (29151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:33,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29151 transitions. [2022-02-18 14:47:33,671 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29151 transitions. Word has length 182 [2022-02-18 14:47:33,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:33,671 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29151 transitions. [2022-02-18 14:47:33,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:33,671 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29151 transitions. [2022-02-18 14:47:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:33,687 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:33,687 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:33,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-18 14:47:33,687 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:33,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:33,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1845206911, now seen corresponding path program 46 times [2022-02-18 14:47:33,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:33,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499973668] [2022-02-18 14:47:33,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:33,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:34,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:34,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:34,103 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499973668] [2022-02-18 14:47:34,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499973668] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:34,104 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:34,104 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:34,104 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211726777] [2022-02-18 14:47:34,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:34,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:34,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:34,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:34,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:34,105 INFO L87 Difference]: Start difference. First operand 8520 states and 29151 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:34,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:34,528 INFO L93 Difference]: Finished difference Result 11056 states and 37874 transitions. [2022-02-18 14:47:34,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:34,528 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:34,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:34,555 INFO L225 Difference]: With dead ends: 11056 [2022-02-18 14:47:34,555 INFO L226 Difference]: Without dead ends: 10906 [2022-02-18 14:47:34,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:47:34,555 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 432 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:34,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 2271 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:34,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2022-02-18 14:47:34,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 8496. [2022-02-18 14:47:34,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8495 states have (on average 3.4195409064155387) internal successors, (29049), 8495 states have internal predecessors, (29049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:34,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 29049 transitions. [2022-02-18 14:47:34,726 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 29049 transitions. Word has length 182 [2022-02-18 14:47:34,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:34,727 INFO L470 AbstractCegarLoop]: Abstraction has 8496 states and 29049 transitions. [2022-02-18 14:47:34,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:34,727 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 29049 transitions. [2022-02-18 14:47:34,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:34,741 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:34,742 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:34,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-18 14:47:34,742 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:34,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:34,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1037356511, now seen corresponding path program 47 times [2022-02-18 14:47:34,742 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:34,742 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099369134] [2022-02-18 14:47:34,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:34,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:35,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:35,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099369134] [2022-02-18 14:47:35,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099369134] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:35,191 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:35,192 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:35,192 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799461700] [2022-02-18 14:47:35,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:35,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:35,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:35,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:35,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:35,193 INFO L87 Difference]: Start difference. First operand 8496 states and 29049 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:35,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:35,624 INFO L93 Difference]: Finished difference Result 10594 states and 36128 transitions. [2022-02-18 14:47:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:35,624 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:35,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:35,650 INFO L225 Difference]: With dead ends: 10594 [2022-02-18 14:47:35,650 INFO L226 Difference]: Without dead ends: 10444 [2022-02-18 14:47:35,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:47:35,651 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 470 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:35,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [470 Valid, 1992 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:35,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10444 states. [2022-02-18 14:47:35,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10444 to 8556. [2022-02-18 14:47:35,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8556 states, 8555 states have (on average 3.4224430157802455) internal successors, (29279), 8555 states have internal predecessors, (29279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:35,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8556 states to 8556 states and 29279 transitions. [2022-02-18 14:47:35,815 INFO L78 Accepts]: Start accepts. Automaton has 8556 states and 29279 transitions. Word has length 182 [2022-02-18 14:47:35,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:35,816 INFO L470 AbstractCegarLoop]: Abstraction has 8556 states and 29279 transitions. [2022-02-18 14:47:35,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:35,816 INFO L276 IsEmpty]: Start isEmpty. Operand 8556 states and 29279 transitions. [2022-02-18 14:47:35,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:35,831 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:35,831 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:35,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-18 14:47:35,832 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:35,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:35,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1436986525, now seen corresponding path program 48 times [2022-02-18 14:47:35,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:35,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960777375] [2022-02-18 14:47:35,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:35,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:36,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:36,314 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:36,314 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960777375] [2022-02-18 14:47:36,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960777375] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:36,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:36,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:36,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318085077] [2022-02-18 14:47:36,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:36,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:36,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:36,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:36,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:36,316 INFO L87 Difference]: Start difference. First operand 8556 states and 29279 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:36,679 INFO L93 Difference]: Finished difference Result 11278 states and 38444 transitions. [2022-02-18 14:47:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:36,679 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:36,706 INFO L225 Difference]: With dead ends: 11278 [2022-02-18 14:47:36,707 INFO L226 Difference]: Without dead ends: 11128 [2022-02-18 14:47:36,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:36,707 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 506 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:36,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 1855 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:36,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11128 states. [2022-02-18 14:47:36,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11128 to 8526. [2022-02-18 14:47:36,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8526 states, 8525 states have (on average 3.4192375366568917) internal successors, (29149), 8525 states have internal predecessors, (29149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8526 states to 8526 states and 29149 transitions. [2022-02-18 14:47:36,883 INFO L78 Accepts]: Start accepts. Automaton has 8526 states and 29149 transitions. Word has length 182 [2022-02-18 14:47:36,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:36,883 INFO L470 AbstractCegarLoop]: Abstraction has 8526 states and 29149 transitions. [2022-02-18 14:47:36,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:36,883 INFO L276 IsEmpty]: Start isEmpty. Operand 8526 states and 29149 transitions. [2022-02-18 14:47:36,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:36,898 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:36,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:36,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-18 14:47:36,899 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:36,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:36,899 INFO L85 PathProgramCache]: Analyzing trace with hash -210386171, now seen corresponding path program 49 times [2022-02-18 14:47:36,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:36,899 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197266184] [2022-02-18 14:47:36,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:36,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:37,280 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:37,280 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197266184] [2022-02-18 14:47:37,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197266184] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:37,280 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:37,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:37,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880246932] [2022-02-18 14:47:37,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:37,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:37,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:37,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:37,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:37,281 INFO L87 Difference]: Start difference. First operand 8526 states and 29149 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:37,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:37,639 INFO L93 Difference]: Finished difference Result 11380 states and 38858 transitions. [2022-02-18 14:47:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:37,639 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:37,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:37,667 INFO L225 Difference]: With dead ends: 11380 [2022-02-18 14:47:37,667 INFO L226 Difference]: Without dead ends: 11230 [2022-02-18 14:47:37,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:37,668 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 421 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:37,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1940 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:37,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-02-18 14:47:37,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8496. [2022-02-18 14:47:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8495 states have (on average 3.4195409064155387) internal successors, (29049), 8495 states have internal predecessors, (29049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 29049 transitions. [2022-02-18 14:47:37,844 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 29049 transitions. Word has length 182 [2022-02-18 14:47:37,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:37,845 INFO L470 AbstractCegarLoop]: Abstraction has 8496 states and 29049 transitions. [2022-02-18 14:47:37,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:37,845 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 29049 transitions. [2022-02-18 14:47:37,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:37,860 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:37,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:37,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-18 14:47:37,860 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:37,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:37,860 INFO L85 PathProgramCache]: Analyzing trace with hash -2028272291, now seen corresponding path program 50 times [2022-02-18 14:47:37,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:37,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354438029] [2022-02-18 14:47:37,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:37,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:38,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:38,218 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:38,218 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354438029] [2022-02-18 14:47:38,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354438029] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:38,218 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:38,218 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:38,218 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293621135] [2022-02-18 14:47:38,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:38,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:38,219 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:38,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:38,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:38,219 INFO L87 Difference]: Start difference. First operand 8496 states and 29049 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:38,656 INFO L93 Difference]: Finished difference Result 10504 states and 36053 transitions. [2022-02-18 14:47:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:38,656 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:38,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:38,682 INFO L225 Difference]: With dead ends: 10504 [2022-02-18 14:47:38,682 INFO L226 Difference]: Without dead ends: 10318 [2022-02-18 14:47:38,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:38,683 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 445 mSDsluCounter, 2342 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:38,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [445 Valid, 2295 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:38,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2022-02-18 14:47:38,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 8528. [2022-02-18 14:47:38,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4212501465931746) internal successors, (29173), 8527 states have internal predecessors, (29173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:38,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29173 transitions. [2022-02-18 14:47:38,862 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29173 transitions. Word has length 182 [2022-02-18 14:47:38,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:38,862 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29173 transitions. [2022-02-18 14:47:38,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:38,862 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29173 transitions. [2022-02-18 14:47:38,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:38,878 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:38,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:38,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-18 14:47:38,878 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:38,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:38,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1191529251, now seen corresponding path program 51 times [2022-02-18 14:47:38,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:38,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074808515] [2022-02-18 14:47:38,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:38,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:39,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:39,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:39,391 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074808515] [2022-02-18 14:47:39,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074808515] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:39,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:39,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:39,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594671719] [2022-02-18 14:47:39,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:39,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:39,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:39,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:39,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:39,392 INFO L87 Difference]: Start difference. First operand 8528 states and 29173 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:39,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:39,758 INFO L93 Difference]: Finished difference Result 11152 states and 38234 transitions. [2022-02-18 14:47:39,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:39,758 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:39,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:39,785 INFO L225 Difference]: With dead ends: 11152 [2022-02-18 14:47:39,785 INFO L226 Difference]: Without dead ends: 11002 [2022-02-18 14:47:39,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:39,785 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 357 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:39,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 2051 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2022-02-18 14:47:39,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 8512. [2022-02-18 14:47:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8512 states, 8511 states have (on average 3.420162143108918) internal successors, (29109), 8511 states have internal predecessors, (29109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8512 states to 8512 states and 29109 transitions. [2022-02-18 14:47:39,958 INFO L78 Accepts]: Start accepts. Automaton has 8512 states and 29109 transitions. Word has length 182 [2022-02-18 14:47:39,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:39,959 INFO L470 AbstractCegarLoop]: Abstraction has 8512 states and 29109 transitions. [2022-02-18 14:47:39,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:39,959 INFO L276 IsEmpty]: Start isEmpty. Operand 8512 states and 29109 transitions. [2022-02-18 14:47:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:39,974 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:39,974 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:39,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-18 14:47:39,974 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:39,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:39,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1269771011, now seen corresponding path program 52 times [2022-02-18 14:47:39,975 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:39,975 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677272059] [2022-02-18 14:47:39,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:39,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:40,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:40,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677272059] [2022-02-18 14:47:40,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677272059] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:40,388 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:40,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:40,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502882131] [2022-02-18 14:47:40,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:40,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:40,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:40,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:40,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:40,389 INFO L87 Difference]: Start difference. First operand 8512 states and 29109 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:40,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:40,729 INFO L93 Difference]: Finished difference Result 11254 states and 38573 transitions. [2022-02-18 14:47:40,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:40,729 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:40,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:40,756 INFO L225 Difference]: With dead ends: 11254 [2022-02-18 14:47:40,757 INFO L226 Difference]: Without dead ends: 11104 [2022-02-18 14:47:40,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:47:40,757 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 538 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:40,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 2183 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:40,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2022-02-18 14:47:40,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 8488. [2022-02-18 14:47:40,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8488 states, 8487 states have (on average 3.4192294096854012) internal successors, (29019), 8487 states have internal predecessors, (29019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:40,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8488 states to 8488 states and 29019 transitions. [2022-02-18 14:47:40,925 INFO L78 Accepts]: Start accepts. Automaton has 8488 states and 29019 transitions. Word has length 182 [2022-02-18 14:47:40,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:40,925 INFO L470 AbstractCegarLoop]: Abstraction has 8488 states and 29019 transitions. [2022-02-18 14:47:40,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:40,926 INFO L276 IsEmpty]: Start isEmpty. Operand 8488 states and 29019 transitions. [2022-02-18 14:47:40,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:40,940 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:40,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:40,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-18 14:47:40,940 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:40,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:40,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1833140033, now seen corresponding path program 53 times [2022-02-18 14:47:40,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:40,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828229119] [2022-02-18 14:47:40,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:40,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:41,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:41,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:41,361 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828229119] [2022-02-18 14:47:41,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828229119] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:41,361 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:41,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:41,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153105302] [2022-02-18 14:47:41,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:41,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:41,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:41,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:41,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:41,362 INFO L87 Difference]: Start difference. First operand 8488 states and 29019 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:41,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:41,706 INFO L93 Difference]: Finished difference Result 10586 states and 36098 transitions. [2022-02-18 14:47:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:41,706 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:41,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:41,728 INFO L225 Difference]: With dead ends: 10586 [2022-02-18 14:47:41,728 INFO L226 Difference]: Without dead ends: 10436 [2022-02-18 14:47:41,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:47:41,729 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 437 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:41,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2585 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:41,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10436 states. [2022-02-18 14:47:41,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10436 to 8788. [2022-02-18 14:47:41,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8788 states, 8787 states have (on average 3.4111756003186526) internal successors, (29974), 8787 states have internal predecessors, (29974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:41,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8788 states to 8788 states and 29974 transitions. [2022-02-18 14:47:41,886 INFO L78 Accepts]: Start accepts. Automaton has 8788 states and 29974 transitions. Word has length 182 [2022-02-18 14:47:41,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:41,886 INFO L470 AbstractCegarLoop]: Abstraction has 8788 states and 29974 transitions. [2022-02-18 14:47:41,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:41,886 INFO L276 IsEmpty]: Start isEmpty. Operand 8788 states and 29974 transitions. [2022-02-18 14:47:41,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:41,902 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:41,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:41,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-18 14:47:41,902 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:41,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:41,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1433510019, now seen corresponding path program 54 times [2022-02-18 14:47:41,903 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:41,903 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070329055] [2022-02-18 14:47:41,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:41,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:42,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:42,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:42,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070329055] [2022-02-18 14:47:42,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070329055] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:42,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:42,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:42,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496057500] [2022-02-18 14:47:42,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:42,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:42,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:42,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:42,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:42,316 INFO L87 Difference]: Start difference. First operand 8788 states and 29974 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:42,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:42,684 INFO L93 Difference]: Finished difference Result 11446 states and 39030 transitions. [2022-02-18 14:47:42,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:42,684 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:42,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:42,710 INFO L225 Difference]: With dead ends: 11446 [2022-02-18 14:47:42,710 INFO L226 Difference]: Without dead ends: 11296 [2022-02-18 14:47:42,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:42,710 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 545 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:42,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 1843 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:42,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11296 states. [2022-02-18 14:47:42,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11296 to 8758. [2022-02-18 14:47:42,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8758 states, 8757 states have (on average 3.408016443987667) internal successors, (29844), 8757 states have internal predecessors, (29844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:42,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8758 states to 8758 states and 29844 transitions. [2022-02-18 14:47:42,902 INFO L78 Accepts]: Start accepts. Automaton has 8758 states and 29844 transitions. Word has length 182 [2022-02-18 14:47:42,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:42,902 INFO L470 AbstractCegarLoop]: Abstraction has 8758 states and 29844 transitions. [2022-02-18 14:47:42,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 8758 states and 29844 transitions. [2022-02-18 14:47:42,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:42,917 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:42,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:42,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-18 14:47:42,918 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:42,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:42,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1214084581, now seen corresponding path program 55 times [2022-02-18 14:47:42,919 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:42,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361965568] [2022-02-18 14:47:42,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:42,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:43,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:43,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361965568] [2022-02-18 14:47:43,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361965568] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:43,330 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:43,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:43,330 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655515290] [2022-02-18 14:47:43,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:43,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:43,331 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:43,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:43,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:43,332 INFO L87 Difference]: Start difference. First operand 8758 states and 29844 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:43,753 INFO L93 Difference]: Finished difference Result 11581 states and 39520 transitions. [2022-02-18 14:47:43,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:43,754 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:43,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:43,782 INFO L225 Difference]: With dead ends: 11581 [2022-02-18 14:47:43,782 INFO L226 Difference]: Without dead ends: 11431 [2022-02-18 14:47:43,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:43,782 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 398 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:43,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 2173 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:43,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11431 states. [2022-02-18 14:47:43,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11431 to 8728. [2022-02-18 14:47:43,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8728 states, 8727 states have (on average 3.4082731752033917) internal successors, (29744), 8727 states have internal predecessors, (29744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8728 states to 8728 states and 29744 transitions. [2022-02-18 14:47:43,960 INFO L78 Accepts]: Start accepts. Automaton has 8728 states and 29744 transitions. Word has length 182 [2022-02-18 14:47:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:43,960 INFO L470 AbstractCegarLoop]: Abstraction has 8728 states and 29744 transitions. [2022-02-18 14:47:43,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:43,960 INFO L276 IsEmpty]: Start isEmpty. Operand 8728 states and 29744 transitions. [2022-02-18 14:47:43,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:43,975 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:43,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:43,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-18 14:47:43,975 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:43,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:43,975 INFO L85 PathProgramCache]: Analyzing trace with hash -501599589, now seen corresponding path program 56 times [2022-02-18 14:47:43,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:43,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345593905] [2022-02-18 14:47:43,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:43,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:44,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:44,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345593905] [2022-02-18 14:47:44,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345593905] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:44,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:44,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:44,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000201405] [2022-02-18 14:47:44,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:44,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:44,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:44,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:44,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:44,405 INFO L87 Difference]: Start difference. First operand 8728 states and 29744 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:44,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:44,718 INFO L93 Difference]: Finished difference Result 11350 states and 38758 transitions. [2022-02-18 14:47:44,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:44,718 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:44,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:44,745 INFO L225 Difference]: With dead ends: 11350 [2022-02-18 14:47:44,745 INFO L226 Difference]: Without dead ends: 11200 [2022-02-18 14:47:44,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:44,746 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 537 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:44,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 1771 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:44,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11200 states. [2022-02-18 14:47:44,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11200 to 8488. [2022-02-18 14:47:44,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8488 states, 8487 states have (on average 3.4192294096854012) internal successors, (29019), 8487 states have internal predecessors, (29019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:44,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8488 states to 8488 states and 29019 transitions. [2022-02-18 14:47:44,919 INFO L78 Accepts]: Start accepts. Automaton has 8488 states and 29019 transitions. Word has length 182 [2022-02-18 14:47:44,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:44,920 INFO L470 AbstractCegarLoop]: Abstraction has 8488 states and 29019 transitions. [2022-02-18 14:47:44,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 8488 states and 29019 transitions. [2022-02-18 14:47:44,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:44,934 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:44,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:44,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-18 14:47:44,935 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:44,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:44,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1963569153, now seen corresponding path program 57 times [2022-02-18 14:47:44,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:44,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112791197] [2022-02-18 14:47:44,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:44,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:45,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:45,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:45,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112791197] [2022-02-18 14:47:45,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112791197] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:45,310 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:45,310 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:45,310 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172028331] [2022-02-18 14:47:45,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:45,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:45,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:45,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:45,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:45,311 INFO L87 Difference]: Start difference. First operand 8488 states and 29019 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:45,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:45,697 INFO L93 Difference]: Finished difference Result 10496 states and 36023 transitions. [2022-02-18 14:47:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:47:45,698 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:45,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:45,723 INFO L225 Difference]: With dead ends: 10496 [2022-02-18 14:47:45,723 INFO L226 Difference]: Without dead ends: 10310 [2022-02-18 14:47:45,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:47:45,723 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 448 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 2086 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:45,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 2086 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:45,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10310 states. [2022-02-18 14:47:45,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10310 to 8568. [2022-02-18 14:47:45,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8568 states, 8567 states have (on average 3.422785105637913) internal successors, (29323), 8567 states have internal predecessors, (29323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:45,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8568 states to 8568 states and 29323 transitions. [2022-02-18 14:47:45,892 INFO L78 Accepts]: Start accepts. Automaton has 8568 states and 29323 transitions. Word has length 182 [2022-02-18 14:47:45,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:45,893 INFO L470 AbstractCegarLoop]: Abstraction has 8568 states and 29323 transitions. [2022-02-18 14:47:45,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:45,893 INFO L276 IsEmpty]: Start isEmpty. Operand 8568 states and 29323 transitions. [2022-02-18 14:47:45,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:45,908 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:45,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:45,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-18 14:47:45,908 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:45,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:45,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1126826113, now seen corresponding path program 58 times [2022-02-18 14:47:45,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:45,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530582887] [2022-02-18 14:47:45,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:45,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:46,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:46,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530582887] [2022-02-18 14:47:46,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530582887] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:46,426 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:46,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:46,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098662733] [2022-02-18 14:47:46,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:46,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:46,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:46,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:46,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:46,427 INFO L87 Difference]: Start difference. First operand 8568 states and 29323 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:46,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:46,867 INFO L93 Difference]: Finished difference Result 11292 states and 38714 transitions. [2022-02-18 14:47:46,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:46,867 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:46,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:46,895 INFO L225 Difference]: With dead ends: 11292 [2022-02-18 14:47:46,895 INFO L226 Difference]: Without dead ends: 11142 [2022-02-18 14:47:46,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:46,901 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 349 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:46,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 2480 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:46,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11142 states. [2022-02-18 14:47:47,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11142 to 8552. [2022-02-18 14:47:47,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8552 states, 8551 states have (on average 3.4217050637352355) internal successors, (29259), 8551 states have internal predecessors, (29259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8552 states to 8552 states and 29259 transitions. [2022-02-18 14:47:47,072 INFO L78 Accepts]: Start accepts. Automaton has 8552 states and 29259 transitions. Word has length 182 [2022-02-18 14:47:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:47,073 INFO L470 AbstractCegarLoop]: Abstraction has 8552 states and 29259 transitions. [2022-02-18 14:47:47,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand 8552 states and 29259 transitions. [2022-02-18 14:47:47,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:47,088 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:47,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:47,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-18 14:47:47,088 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:47,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:47,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1334474149, now seen corresponding path program 59 times [2022-02-18 14:47:47,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:47,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180716369] [2022-02-18 14:47:47,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:47,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:47,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:47,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:47,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180716369] [2022-02-18 14:47:47,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180716369] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:47,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:47,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:47,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132639761] [2022-02-18 14:47:47,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:47,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:47,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:47,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:47,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:47,552 INFO L87 Difference]: Start difference. First operand 8552 states and 29259 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:48,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:48,080 INFO L93 Difference]: Finished difference Result 11441 states and 39195 transitions. [2022-02-18 14:47:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:48,080 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:48,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:48,108 INFO L225 Difference]: With dead ends: 11441 [2022-02-18 14:47:48,108 INFO L226 Difference]: Without dead ends: 11291 [2022-02-18 14:47:48,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:48,109 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 389 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:48,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 2928 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:48,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11291 states. [2022-02-18 14:47:48,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11291 to 8536. [2022-02-18 14:47:48,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.421089630931459) internal successors, (29199), 8535 states have internal predecessors, (29199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:48,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29199 transitions. [2022-02-18 14:47:48,284 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29199 transitions. Word has length 182 [2022-02-18 14:47:48,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:48,285 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29199 transitions. [2022-02-18 14:47:48,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:48,285 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29199 transitions. [2022-02-18 14:47:48,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-02-18 14:47:48,299 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:48,300 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:48,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-18 14:47:48,300 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:48,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:48,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1861367203, now seen corresponding path program 60 times [2022-02-18 14:47:48,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:48,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432217392] [2022-02-18 14:47:48,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:48,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:48,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:48,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432217392] [2022-02-18 14:47:48,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432217392] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:48,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 14:47:48,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-18 14:47:48,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227568177] [2022-02-18 14:47:48,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:48,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 14:47:48,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:48,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 14:47:48,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-02-18 14:47:48,777 INFO L87 Difference]: Start difference. First operand 8536 states and 29199 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:49,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:49,220 INFO L93 Difference]: Finished difference Result 11218 states and 38438 transitions. [2022-02-18 14:47:49,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 14:47:49,221 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2022-02-18 14:47:49,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:49,246 INFO L225 Difference]: With dead ends: 11218 [2022-02-18 14:47:49,246 INFO L226 Difference]: Without dead ends: 11068 [2022-02-18 14:47:49,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-02-18 14:47:49,246 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 512 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:49,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 2129 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-18 14:47:49,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2022-02-18 14:47:49,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 8360. [2022-02-18 14:47:49,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8360 states, 8359 states have (on average 3.4184711089843285) internal successors, (28575), 8359 states have internal predecessors, (28575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:49,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8360 states to 8360 states and 28575 transitions. [2022-02-18 14:47:49,407 INFO L78 Accepts]: Start accepts. Automaton has 8360 states and 28575 transitions. Word has length 182 [2022-02-18 14:47:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:49,407 INFO L470 AbstractCegarLoop]: Abstraction has 8360 states and 28575 transitions. [2022-02-18 14:47:49,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:49,407 INFO L276 IsEmpty]: Start isEmpty. Operand 8360 states and 28575 transitions. [2022-02-18 14:47:49,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-02-18 14:47:49,421 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:49,422 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:49,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-18 14:47:49,422 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:49,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:49,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1224210520, now seen corresponding path program 1 times [2022-02-18 14:47:49,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:49,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591742039] [2022-02-18 14:47:49,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:49,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:49,473 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:49,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591742039] [2022-02-18 14:47:49,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591742039] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:47:49,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577387071] [2022-02-18 14:47:49,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:49,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:47:49,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:47:49,479 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) [2022-02-18 14:47:49,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-18 14:47:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:49,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-18 14:47:49,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:47:49,957 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-18 14:47:49,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:47:49,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577387071] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:47:49,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:47:49,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-02-18 14:47:49,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196377270] [2022-02-18 14:47:49,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:47:49,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-18 14:47:49,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:49,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-18 14:47:49,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:47:49,958 INFO L87 Difference]: Start difference. First operand 8360 states and 28575 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:50,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:50,069 INFO L93 Difference]: Finished difference Result 16640 states and 58245 transitions. [2022-02-18 14:47:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 14:47:50,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 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 187 [2022-02-18 14:47:50,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:50,112 INFO L225 Difference]: With dead ends: 16640 [2022-02-18 14:47:50,113 INFO L226 Difference]: Without dead ends: 15860 [2022-02-18 14:47:50,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:47:50,113 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 173 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:50,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 397 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:47:50,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15860 states. [2022-02-18 14:47:50,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15860 to 13004. [2022-02-18 14:47:50,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13004 states, 13003 states have (on average 3.5440283011612705) internal successors, (46083), 13003 states have internal predecessors, (46083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:50,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13004 states to 13004 states and 46083 transitions. [2022-02-18 14:47:50,444 INFO L78 Accepts]: Start accepts. Automaton has 13004 states and 46083 transitions. Word has length 187 [2022-02-18 14:47:50,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:50,444 INFO L470 AbstractCegarLoop]: Abstraction has 13004 states and 46083 transitions. [2022-02-18 14:47:50,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:50,444 INFO L276 IsEmpty]: Start isEmpty. Operand 13004 states and 46083 transitions. [2022-02-18 14:47:50,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-02-18 14:47:50,470 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:50,470 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:50,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-18 14:47:50,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:47:50,688 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:50,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:50,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1066332014, now seen corresponding path program 1 times [2022-02-18 14:47:50,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:50,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834554900] [2022-02-18 14:47:50,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:50,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:50,759 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:47:50,759 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:50,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834554900] [2022-02-18 14:47:50,759 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834554900] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:47:50,759 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612133156] [2022-02-18 14:47:50,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:50,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:47:50,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:47:50,761 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) [2022-02-18 14:47:50,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 14:47:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:50,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-18 14:47:50,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:47:51,288 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:47:51,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:47:51,738 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:47:51,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612133156] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:47:51,738 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:47:51,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-02-18 14:47:51,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961841915] [2022-02-18 14:47:51,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:47:51,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:47:51,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:51,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:47:51,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:47:51,740 INFO L87 Difference]: Start difference. First operand 13004 states and 46083 transitions. Second operand has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:52,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:52,037 INFO L93 Difference]: Finished difference Result 21336 states and 73984 transitions. [2022-02-18 14:47:52,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 14:47:52,038 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 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 188 [2022-02-18 14:47:52,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:52,087 INFO L225 Difference]: With dead ends: 21336 [2022-02-18 14:47:52,087 INFO L226 Difference]: Without dead ends: 17904 [2022-02-18 14:47:52,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2022-02-18 14:47:52,088 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 852 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:52,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 1449 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:47:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17904 states. [2022-02-18 14:47:52,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17904 to 16252. [2022-02-18 14:47:52,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16252 states, 16251 states have (on average 3.50772260168605) internal successors, (57004), 16251 states have internal predecessors, (57004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:52,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16252 states to 16252 states and 57004 transitions. [2022-02-18 14:47:52,427 INFO L78 Accepts]: Start accepts. Automaton has 16252 states and 57004 transitions. Word has length 188 [2022-02-18 14:47:52,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:52,427 INFO L470 AbstractCegarLoop]: Abstraction has 16252 states and 57004 transitions. [2022-02-18 14:47:52,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:52,427 INFO L276 IsEmpty]: Start isEmpty. Operand 16252 states and 57004 transitions. [2022-02-18 14:47:52,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-02-18 14:47:52,458 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:52,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:52,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-18 14:47:52,675 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,SelfDestructingSolverStorable64 [2022-02-18 14:47:52,676 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:52,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:52,676 INFO L85 PathProgramCache]: Analyzing trace with hash -44480918, now seen corresponding path program 1 times [2022-02-18 14:47:52,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:52,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314625852] [2022-02-18 14:47:52,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:52,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:47:52,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:52,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314625852] [2022-02-18 14:47:52,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314625852] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:47:52,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694398972] [2022-02-18 14:47:52,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:52,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:47:52,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:47:52,754 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) [2022-02-18 14:47:52,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-18 14:47:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:52,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-18 14:47:52,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:47:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:47:53,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:47:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:47:53,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694398972] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:47:53,634 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:47:53,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-02-18 14:47:53,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234141170] [2022-02-18 14:47:53,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:47:53,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-18 14:47:53,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:53,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-18 14:47:53,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-02-18 14:47:53,636 INFO L87 Difference]: Start difference. First operand 16252 states and 57004 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:53,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:53,974 INFO L93 Difference]: Finished difference Result 30484 states and 105398 transitions. [2022-02-18 14:47:53,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-18 14:47:53,974 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 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 188 [2022-02-18 14:47:53,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:54,022 INFO L225 Difference]: With dead ends: 30484 [2022-02-18 14:47:54,023 INFO L226 Difference]: Without dead ends: 21539 [2022-02-18 14:47:54,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2022-02-18 14:47:54,023 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 643 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:54,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 1696 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 14:47:54,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21539 states. [2022-02-18 14:47:54,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21539 to 16503. [2022-02-18 14:47:54,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16503 states, 16502 states have (on average 3.4929705490243608) internal successors, (57641), 16502 states have internal predecessors, (57641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:54,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16503 states to 16503 states and 57641 transitions. [2022-02-18 14:47:54,355 INFO L78 Accepts]: Start accepts. Automaton has 16503 states and 57641 transitions. Word has length 188 [2022-02-18 14:47:54,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:54,356 INFO L470 AbstractCegarLoop]: Abstraction has 16503 states and 57641 transitions. [2022-02-18 14:47:54,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:54,356 INFO L276 IsEmpty]: Start isEmpty. Operand 16503 states and 57641 transitions. [2022-02-18 14:47:54,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-18 14:47:54,385 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:54,385 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:54,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-18 14:47:54,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:47:54,599 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:54,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:54,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1650696287, now seen corresponding path program 2 times [2022-02-18 14:47:54,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:54,611 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742164627] [2022-02-18 14:47:54,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:54,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-18 14:47:54,830 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:54,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742164627] [2022-02-18 14:47:54,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742164627] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:47:54,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562242557] [2022-02-18 14:47:54,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:47:54,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:47:54,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:47:54,831 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) [2022-02-18 14:47:54,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-18 14:47:54,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:47:54,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:47:54,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-18 14:47:54,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:47:55,491 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-18 14:47:55,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:47:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-18 14:47:56,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562242557] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:47:56,370 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:47:56,370 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2022-02-18 14:47:56,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070099784] [2022-02-18 14:47:56,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:47:56,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-18 14:47:56,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:56,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-18 14:47:56,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2022-02-18 14:47:56,372 INFO L87 Difference]: Start difference. First operand 16503 states and 57641 transitions. Second operand has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:56,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:47:56,794 INFO L93 Difference]: Finished difference Result 18386 states and 63392 transitions. [2022-02-18 14:47:56,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 14:47:56,794 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 0 states have call successors, (0), 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 195 [2022-02-18 14:47:56,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:47:56,832 INFO L225 Difference]: With dead ends: 18386 [2022-02-18 14:47:56,833 INFO L226 Difference]: Without dead ends: 16264 [2022-02-18 14:47:56,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=387, Invalid=1173, Unknown=0, NotChecked=0, Total=1560 [2022-02-18 14:47:56,833 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 1101 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:47:56,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1101 Valid, 2077 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 14:47:56,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16264 states. [2022-02-18 14:47:57,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16264 to 16259. [2022-02-18 14:47:57,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16259 states, 16258 states have (on average 3.506642883503506) internal successors, (57011), 16258 states have internal predecessors, (57011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:57,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16259 states to 16259 states and 57011 transitions. [2022-02-18 14:47:57,148 INFO L78 Accepts]: Start accepts. Automaton has 16259 states and 57011 transitions. Word has length 195 [2022-02-18 14:47:57,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:47:57,148 INFO L470 AbstractCegarLoop]: Abstraction has 16259 states and 57011 transitions. [2022-02-18 14:47:57,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:47:57,149 INFO L276 IsEmpty]: Start isEmpty. Operand 16259 states and 57011 transitions. [2022-02-18 14:47:57,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-18 14:47:57,180 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:47:57,180 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:47:57,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-18 14:47:57,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:47:57,397 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:47:57,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:47:57,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1930069325, now seen corresponding path program 2 times [2022-02-18 14:47:57,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:47:57,397 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806182277] [2022-02-18 14:47:57,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:47:57,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:47:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:47:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:47:57,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:47:57,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806182277] [2022-02-18 14:47:57,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806182277] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:47:57,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124194777] [2022-02-18 14:47:57,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:47:57,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:47:57,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:47:57,788 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) [2022-02-18 14:47:57,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-18 14:47:57,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:47:57,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:47:57,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 36 conjunts are in the unsatisfiable core [2022-02-18 14:47:57,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:47:58,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 14:47:58,863 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:47:58,864 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 10 [2022-02-18 14:47:58,940 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:47:58,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:47:59,121 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-02-18 14:47:59,121 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2022-02-18 14:47:59,927 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:47:59,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124194777] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:47:59,927 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:47:59,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 14] total 37 [2022-02-18 14:47:59,928 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639559186] [2022-02-18 14:47:59,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:47:59,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-02-18 14:47:59,928 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:47:59,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-02-18 14:47:59,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=1004, Unknown=0, NotChecked=0, Total=1332 [2022-02-18 14:47:59,929 INFO L87 Difference]: Start difference. First operand 16259 states and 57011 transitions. Second operand has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:01,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:48:01,501 INFO L93 Difference]: Finished difference Result 85276 states and 297897 transitions. [2022-02-18 14:48:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-18 14:48:01,501 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 0 states have call successors, (0), 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 195 [2022-02-18 14:48:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:48:01,710 INFO L225 Difference]: With dead ends: 85276 [2022-02-18 14:48:01,710 INFO L226 Difference]: Without dead ends: 63134 [2022-02-18 14:48:01,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 369 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1265 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=951, Invalid=3339, Unknown=0, NotChecked=0, Total=4290 [2022-02-18 14:48:01,711 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 1512 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 4189 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-18 14:48:01,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1512 Valid, 4189 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-02-18 14:48:01,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63134 states. [2022-02-18 14:48:02,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63134 to 33761. [2022-02-18 14:48:02,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33761 states, 33760 states have (on average 3.618601895734597) internal successors, (122164), 33760 states have internal predecessors, (122164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:02,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33761 states to 33761 states and 122164 transitions. [2022-02-18 14:48:02,710 INFO L78 Accepts]: Start accepts. Automaton has 33761 states and 122164 transitions. Word has length 195 [2022-02-18 14:48:02,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:48:02,710 INFO L470 AbstractCegarLoop]: Abstraction has 33761 states and 122164 transitions. [2022-02-18 14:48:02,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:02,710 INFO L276 IsEmpty]: Start isEmpty. Operand 33761 states and 122164 transitions. [2022-02-18 14:48:02,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-18 14:48:02,789 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:48:02,789 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:48:02,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-18 14:48:03,000 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,SelfDestructingSolverStorable67 [2022-02-18 14:48:03,002 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:48:03,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:48:03,002 INFO L85 PathProgramCache]: Analyzing trace with hash 799326719, now seen corresponding path program 3 times [2022-02-18 14:48:03,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:48:03,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745912385] [2022-02-18 14:48:03,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:48:03,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:48:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:48:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:48:03,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:48:03,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745912385] [2022-02-18 14:48:03,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745912385] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:48:03,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600049475] [2022-02-18 14:48:03,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:48:03,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:48:03,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:48:03,438 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) [2022-02-18 14:48:03,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-18 14:48:03,588 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-18 14:48:03,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:48:03,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-18 14:48:03,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:48:04,652 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-02-18 14:48:04,653 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-02-18 14:48:04,714 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-18 14:48:04,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:48:04,819 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-02-18 14:48:04,819 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 16 [2022-02-18 14:48:05,225 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-18 14:48:05,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600049475] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:48:05,225 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:48:05,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 5, 5] total 22 [2022-02-18 14:48:05,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162908838] [2022-02-18 14:48:05,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:48:05,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-18 14:48:05,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:48:05,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-18 14:48:05,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2022-02-18 14:48:05,226 INFO L87 Difference]: Start difference. First operand 33761 states and 122164 transitions. Second operand has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:06,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:48:06,209 INFO L93 Difference]: Finished difference Result 43176 states and 153626 transitions. [2022-02-18 14:48:06,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-18 14:48:06,209 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 0 states have call successors, (0), 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 195 [2022-02-18 14:48:06,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:48:06,505 INFO L225 Difference]: With dead ends: 43176 [2022-02-18 14:48:06,505 INFO L226 Difference]: Without dead ends: 39382 [2022-02-18 14:48:06,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 385 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=298, Invalid=1424, Unknown=0, NotChecked=0, Total=1722 [2022-02-18 14:48:06,505 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 463 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-18 14:48:06,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2853 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 693 Invalid, 0 Unknown, 62 Unchecked, 0.3s Time] [2022-02-18 14:48:06,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39382 states. [2022-02-18 14:48:07,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39382 to 34982. [2022-02-18 14:48:07,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34982 states, 34981 states have (on average 3.6216803407564107) internal successors, (126690), 34981 states have internal predecessors, (126690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34982 states to 34982 states and 126690 transitions. [2022-02-18 14:48:07,690 INFO L78 Accepts]: Start accepts. Automaton has 34982 states and 126690 transitions. Word has length 195 [2022-02-18 14:48:07,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:48:07,690 INFO L470 AbstractCegarLoop]: Abstraction has 34982 states and 126690 transitions. [2022-02-18 14:48:07,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 34982 states and 126690 transitions. [2022-02-18 14:48:07,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-18 14:48:07,853 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:48:07,854 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:48:07,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-18 14:48:08,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:48:08,068 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:48:08,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:48:08,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1879711941, now seen corresponding path program 4 times [2022-02-18 14:48:08,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:48:08,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805563162] [2022-02-18 14:48:08,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:48:08,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:48:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:48:08,756 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:48:08,757 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:48:08,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805563162] [2022-02-18 14:48:08,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805563162] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:48:08,757 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086494654] [2022-02-18 14:48:08,757 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 14:48:08,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:48:08,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:48:08,768 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:48:08,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-18 14:48:08,908 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 14:48:08,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:48:08,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-18 14:48:08,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:48:08,961 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 14:48:09,200 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-18 14:48:09,200 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-18 14:48:10,023 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:48:10,056 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-18 14:48:10,084 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:48:10,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:48:10,192 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1548 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1548) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-18 14:48:10,355 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:48:10,356 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-02-18 14:48:10,359 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-18 14:48:12,066 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:48:12,066 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086494654] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:48:12,066 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:48:12,066 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 58 [2022-02-18 14:48:12,066 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836174018] [2022-02-18 14:48:12,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:48:12,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-18 14:48:12,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:48:12,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-18 14:48:12,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=2914, Unknown=1, NotChecked=110, Total=3306 [2022-02-18 14:48:12,067 INFO L87 Difference]: Start difference. First operand 34982 states and 126690 transitions. Second operand has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:19,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:48:19,493 INFO L93 Difference]: Finished difference Result 139174 states and 499828 transitions. [2022-02-18 14:48:19,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-18 14:48:19,493 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 0 states have call successors, (0), 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 195 [2022-02-18 14:48:19,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:48:20,147 INFO L225 Difference]: With dead ends: 139174 [2022-02-18 14:48:20,147 INFO L226 Difference]: Without dead ends: 125061 [2022-02-18 14:48:20,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 357 SyntacticMatches, 12 SemanticMatches, 126 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4735 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=2166, Invalid=13827, Unknown=13, NotChecked=250, Total=16256 [2022-02-18 14:48:20,148 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 4015 mSDsluCounter, 9230 mSDsCounter, 0 mSdLazyCounter, 2679 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4015 SdHoareTripleChecker+Valid, 8732 SdHoareTripleChecker+Invalid, 4113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1213 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:48:20,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4015 Valid, 8732 Invalid, 4113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2679 Invalid, 0 Unknown, 1213 Unchecked, 1.2s Time] [2022-02-18 14:48:20,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125061 states. [2022-02-18 14:48:22,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125061 to 60557. [2022-02-18 14:48:22,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60557 states, 60556 states have (on average 3.708748926613383) internal successors, (224587), 60556 states have internal predecessors, (224587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60557 states to 60557 states and 224587 transitions. [2022-02-18 14:48:23,052 INFO L78 Accepts]: Start accepts. Automaton has 60557 states and 224587 transitions. Word has length 195 [2022-02-18 14:48:23,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:48:23,052 INFO L470 AbstractCegarLoop]: Abstraction has 60557 states and 224587 transitions. [2022-02-18 14:48:23,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 60557 states and 224587 transitions. [2022-02-18 14:48:23,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-18 14:48:23,197 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:48:23,197 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:48:23,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-18 14:48:23,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:48:23,414 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:48:23,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:48:23,415 INFO L85 PathProgramCache]: Analyzing trace with hash -397770113, now seen corresponding path program 5 times [2022-02-18 14:48:23,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:48:23,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546825797] [2022-02-18 14:48:23,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:48:23,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:48:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:48:24,899 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:48:24,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:48:24,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546825797] [2022-02-18 14:48:24,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546825797] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:48:24,900 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428648588] [2022-02-18 14:48:24,900 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 14:48:24,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:48:24,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:48:24,901 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:48:24,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-18 14:48:25,050 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-02-18 14:48:25,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:48:25,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 33 conjunts are in the unsatisfiable core [2022-02-18 14:48:25,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:48:25,122 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 14:48:25,151 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-02-18 14:48:25,151 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-02-18 14:48:25,263 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-18 14:48:25,263 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-18 14:48:25,632 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:48:25,763 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-02-18 14:48:25,764 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-02-18 14:48:25,853 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-18 14:48:25,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:48:25,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428648588] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:48:25,854 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:48:25,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [29] total 39 [2022-02-18 14:48:25,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569310660] [2022-02-18 14:48:25,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:48:25,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-18 14:48:25,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:48:25,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-18 14:48:25,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1376, Unknown=0, NotChecked=0, Total=1482 [2022-02-18 14:48:25,855 INFO L87 Difference]: Start difference. First operand 60557 states and 224587 transitions. Second operand has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:26,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:48:26,703 INFO L93 Difference]: Finished difference Result 80221 states and 293711 transitions. [2022-02-18 14:48:26,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 14:48:26,704 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 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 195 [2022-02-18 14:48:26,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:48:27,142 INFO L225 Difference]: With dead ends: 80221 [2022-02-18 14:48:27,142 INFO L226 Difference]: Without dead ends: 78359 [2022-02-18 14:48:27,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=204, Invalid=2346, Unknown=0, NotChecked=0, Total=2550 [2022-02-18 14:48:27,142 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 431 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:48:27,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1721 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 272 Invalid, 0 Unknown, 68 Unchecked, 0.1s Time] [2022-02-18 14:48:27,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78359 states. [2022-02-18 14:48:28,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78359 to 63413. [2022-02-18 14:48:28,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63413 states, 63412 states have (on average 3.7079259446161608) internal successors, (235127), 63412 states have internal predecessors, (235127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:29,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63413 states to 63413 states and 235127 transitions. [2022-02-18 14:48:29,196 INFO L78 Accepts]: Start accepts. Automaton has 63413 states and 235127 transitions. Word has length 195 [2022-02-18 14:48:29,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:48:29,196 INFO L470 AbstractCegarLoop]: Abstraction has 63413 states and 235127 transitions. [2022-02-18 14:48:29,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:29,197 INFO L276 IsEmpty]: Start isEmpty. Operand 63413 states and 235127 transitions. [2022-02-18 14:48:29,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-18 14:48:29,342 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:48:29,343 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:48:29,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-18 14:48:29,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:48:29,556 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:48:29,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:48:29,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1963341365, now seen corresponding path program 6 times [2022-02-18 14:48:29,557 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:48:29,557 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956513059] [2022-02-18 14:48:29,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:48:29,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:48:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:48:30,287 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:48:30,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:48:30,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956513059] [2022-02-18 14:48:30,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956513059] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:48:30,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549889242] [2022-02-18 14:48:30,288 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 14:48:30,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:48:30,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:48:30,289 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:48:30,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-18 14:48:30,474 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-02-18 14:48:30,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:48:30,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-18 14:48:30,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:48:31,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:48:31,108 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:48:31,285 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-02-18 14:48:31,285 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-02-18 14:48:31,345 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:48:31,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:48:31,607 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:48:31,608 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-02-18 14:48:31,610 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-18 14:48:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:48:32,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549889242] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:48:32,804 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:48:32,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 58 [2022-02-18 14:48:32,804 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394303596] [2022-02-18 14:48:32,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:48:32,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-18 14:48:32,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:48:32,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-18 14:48:32,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=3069, Unknown=0, NotChecked=0, Total=3306 [2022-02-18 14:48:32,806 INFO L87 Difference]: Start difference. First operand 63413 states and 235127 transitions. Second operand has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:38,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:48:38,375 INFO L93 Difference]: Finished difference Result 131492 states and 482053 transitions. [2022-02-18 14:48:38,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-18 14:48:38,379 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 states have internal predecessors, (436), 0 states have call successors, (0), 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 195 [2022-02-18 14:48:38,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:48:39,141 INFO L225 Difference]: With dead ends: 131492 [2022-02-18 14:48:39,141 INFO L226 Difference]: Without dead ends: 130008 [2022-02-18 14:48:39,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 365 SyntacticMatches, 15 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4008 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1725, Invalid=12795, Unknown=0, NotChecked=0, Total=14520 [2022-02-18 14:48:39,142 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 3583 mSDsluCounter, 11219 mSDsCounter, 0 mSdLazyCounter, 3184 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 10626 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 3184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 182 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-18 14:48:39,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 10626 Invalid, 3555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 3184 Invalid, 0 Unknown, 182 Unchecked, 1.2s Time] [2022-02-18 14:48:39,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130008 states. [2022-02-18 14:48:41,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130008 to 63667. [2022-02-18 14:48:41,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63667 states, 63666 states have (on average 3.7056199541356456) internal successors, (235922), 63666 states have internal predecessors, (235922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:41,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63667 states to 63667 states and 235922 transitions. [2022-02-18 14:48:41,703 INFO L78 Accepts]: Start accepts. Automaton has 63667 states and 235922 transitions. Word has length 195 [2022-02-18 14:48:41,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:48:41,703 INFO L470 AbstractCegarLoop]: Abstraction has 63667 states and 235922 transitions. [2022-02-18 14:48:41,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:41,704 INFO L276 IsEmpty]: Start isEmpty. Operand 63667 states and 235922 transitions. [2022-02-18 14:48:41,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-02-18 14:48:41,850 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:48:41,850 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:48:41,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-18 14:48:42,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:48:42,055 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:48:42,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:48:42,055 INFO L85 PathProgramCache]: Analyzing trace with hash -882956143, now seen corresponding path program 7 times [2022-02-18 14:48:42,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:48:42,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452515852] [2022-02-18 14:48:42,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:48:42,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:48:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:48:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:48:43,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:48:43,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452515852] [2022-02-18 14:48:43,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452515852] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:48:43,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030557632] [2022-02-18 14:48:43,319 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-18 14:48:43,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:48:43,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:48:43,320 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:48:43,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-18 14:48:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:48:43,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 49 conjunts are in the unsatisfiable core [2022-02-18 14:48:43,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:48:43,512 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-18 14:48:43,541 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-18 14:48:43,542 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-02-18 14:48:43,990 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-18 14:48:43,991 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-02-18 14:48:44,914 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-02-18 14:48:45,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:48:45,161 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:48:45,204 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-18 14:48:45,258 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:48:45,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:48:45,363 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1688 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1688) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-18 14:48:45,555 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:48:45,555 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 85 [2022-02-18 14:48:45,558 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 58 [2022-02-18 14:48:45,560 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2022-02-18 14:48:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:48:47,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030557632] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:48:47,431 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:48:47,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23, 23] total 68 [2022-02-18 14:48:47,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368654138] [2022-02-18 14:48:47,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:48:47,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-18 14:48:47,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:48:47,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-18 14:48:47,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=4099, Unknown=2, NotChecked=130, Total=4556 [2022-02-18 14:48:47,432 INFO L87 Difference]: Start difference. First operand 63667 states and 235922 transitions. Second operand has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:48:59,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:48:59,707 INFO L93 Difference]: Finished difference Result 231914 states and 848599 transitions. [2022-02-18 14:48:59,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-02-18 14:48:59,707 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 0 states have call successors, (0), 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 195 [2022-02-18 14:48:59,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:49:01,006 INFO L225 Difference]: With dead ends: 231914 [2022-02-18 14:49:01,006 INFO L226 Difference]: Without dead ends: 213213 [2022-02-18 14:49:01,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 357 SyntacticMatches, 24 SemanticMatches, 155 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8004 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=2946, Invalid=21215, Unknown=23, NotChecked=308, Total=24492 [2022-02-18 14:49:01,007 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 6034 mSDsluCounter, 14218 mSDsCounter, 0 mSdLazyCounter, 4987 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6034 SdHoareTripleChecker+Valid, 13306 SdHoareTripleChecker+Invalid, 8052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 4987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2692 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:49:01,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6034 Valid, 13306 Invalid, 8052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 4987 Invalid, 0 Unknown, 2692 Unchecked, 2.0s Time] [2022-02-18 14:49:01,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213213 states. [2022-02-18 14:49:04,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213213 to 59461. [2022-02-18 14:49:04,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59461 states, 59460 states have (on average 3.6814328960645812) internal successors, (218898), 59460 states have internal predecessors, (218898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:49:04,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59461 states to 59461 states and 218898 transitions. [2022-02-18 14:49:04,584 INFO L78 Accepts]: Start accepts. Automaton has 59461 states and 218898 transitions. Word has length 195 [2022-02-18 14:49:04,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:49:04,584 INFO L470 AbstractCegarLoop]: Abstraction has 59461 states and 218898 transitions. [2022-02-18 14:49:04,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:49:04,584 INFO L276 IsEmpty]: Start isEmpty. Operand 59461 states and 218898 transitions. [2022-02-18 14:49:05,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-18 14:49:05,073 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:49:05,073 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:49:05,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-18 14:49:05,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2022-02-18 14:49:05,291 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:49:05,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:49:05,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1483032586, now seen corresponding path program 3 times [2022-02-18 14:49:05,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:49:05,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853225526] [2022-02-18 14:49:05,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:49:05,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:49:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:49:05,348 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-18 14:49:05,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:49:05,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853225526] [2022-02-18 14:49:05,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853225526] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:49:05,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652233011] [2022-02-18 14:49:05,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:49:05,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:49:05,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:49:05,364 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:49:05,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-18 14:49:05,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-18 14:49:05,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:49:05,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-18 14:49:05,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:49:05,883 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-18 14:49:05,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-18 14:49:05,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652233011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 14:49:05,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-18 14:49:05,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-02-18 14:49:05,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773094441] [2022-02-18 14:49:05,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 14:49:05,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-18 14:49:05,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:49:05,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-18 14:49:05,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:49:05,885 INFO L87 Difference]: Start difference. First operand 59461 states and 218898 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:49:06,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:49:06,743 INFO L93 Difference]: Finished difference Result 88471 states and 323334 transitions. [2022-02-18 14:49:06,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 14:49:06,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 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 202 [2022-02-18 14:49:06,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:49:07,276 INFO L225 Difference]: With dead ends: 88471 [2022-02-18 14:49:07,277 INFO L226 Difference]: Without dead ends: 86165 [2022-02-18 14:49:07,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-18 14:49:07,277 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 189 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:49:07,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 387 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 14:49:07,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86165 states. [2022-02-18 14:49:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86165 to 75916. [2022-02-18 14:49:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75916 states, 75915 states have (on average 3.6963841138115) internal successors, (280611), 75915 states have internal predecessors, (280611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:49:09,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75916 states to 75916 states and 280611 transitions. [2022-02-18 14:49:09,966 INFO L78 Accepts]: Start accepts. Automaton has 75916 states and 280611 transitions. Word has length 202 [2022-02-18 14:49:09,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:49:09,966 INFO L470 AbstractCegarLoop]: Abstraction has 75916 states and 280611 transitions. [2022-02-18 14:49:09,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:49:09,966 INFO L276 IsEmpty]: Start isEmpty. Operand 75916 states and 280611 transitions. [2022-02-18 14:49:10,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-18 14:49:10,155 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:49:10,156 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:49:10,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-02-18 14:49:10,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2022-02-18 14:49:10,372 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:49:10,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:49:10,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1449450942, now seen corresponding path program 8 times [2022-02-18 14:49:10,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:49:10,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878678578] [2022-02-18 14:49:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:49:10,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:49:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:49:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:49:12,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:49:12,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878678578] [2022-02-18 14:49:12,035 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878678578] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:49:12,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821375289] [2022-02-18 14:49:12,035 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:49:12,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:49:12,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:49:12,036 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:49:12,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-18 14:49:12,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:49:12,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:49:12,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-18 14:49:12,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:49:13,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:49:13,594 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:49:13,643 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2022-02-18 14:49:13,751 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:49:13,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:49:14,016 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:49:14,017 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-02-18 14:49:14,019 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-18 14:49:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:49:15,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821375289] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:49:15,755 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:49:15,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 23] total 67 [2022-02-18 14:49:15,755 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019768252] [2022-02-18 14:49:15,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:49:15,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-02-18 14:49:15,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:49:15,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-02-18 14:49:15,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=4102, Unknown=2, NotChecked=0, Total=4422 [2022-02-18 14:49:15,766 INFO L87 Difference]: Start difference. First operand 75916 states and 280611 transitions. Second operand has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:49:33,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:49:33,015 INFO L93 Difference]: Finished difference Result 400204 states and 1460550 transitions. [2022-02-18 14:49:33,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-02-18 14:49:33,016 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 0 states have call successors, (0), 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 202 [2022-02-18 14:49:33,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:49:35,291 INFO L225 Difference]: With dead ends: 400204 [2022-02-18 14:49:35,291 INFO L226 Difference]: Without dead ends: 390794 [2022-02-18 14:49:35,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 367 SyntacticMatches, 8 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11722 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=4506, Invalid=31024, Unknown=2, NotChecked=0, Total=35532 [2022-02-18 14:49:35,292 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 6425 mSDsluCounter, 17849 mSDsCounter, 0 mSdLazyCounter, 6183 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6425 SdHoareTripleChecker+Valid, 16690 SdHoareTripleChecker+Invalid, 7170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 6183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 502 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:49:35,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6425 Valid, 16690 Invalid, 7170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 6183 Invalid, 0 Unknown, 502 Unchecked, 3.0s Time] [2022-02-18 14:49:36,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390794 states. [2022-02-18 14:49:43,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390794 to 147094. [2022-02-18 14:49:44,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147094 states, 147093 states have (on average 3.7853330885902117) internal successors, (556796), 147093 states have internal predecessors, (556796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:49:45,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147094 states to 147094 states and 556796 transitions. [2022-02-18 14:49:45,665 INFO L78 Accepts]: Start accepts. Automaton has 147094 states and 556796 transitions. Word has length 202 [2022-02-18 14:49:45,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:49:45,665 INFO L470 AbstractCegarLoop]: Abstraction has 147094 states and 556796 transitions. [2022-02-18 14:49:45,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:49:45,665 INFO L276 IsEmpty]: Start isEmpty. Operand 147094 states and 556796 transitions. [2022-02-18 14:49:46,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-18 14:49:46,245 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:49:46,245 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:49:46,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-02-18 14:49:46,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:49:46,461 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:49:46,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:49:46,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1771842876, now seen corresponding path program 9 times [2022-02-18 14:49:46,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:49:46,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626383033] [2022-02-18 14:49:46,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:49:46,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:49:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:49:48,004 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:49:48,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:49:48,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626383033] [2022-02-18 14:49:48,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626383033] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:49:48,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637429793] [2022-02-18 14:49:48,005 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 14:49:48,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:49:48,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:49:48,006 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:49:48,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-18 14:49:48,145 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-18 14:49:48,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:49:48,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-18 14:49:48,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:49:48,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:49:48,803 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:49:48,834 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-18 14:49:48,897 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-18 14:49:48,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:49:48,976 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1834 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1834) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-18 14:49:49,015 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:49:49,015 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-02-18 14:49:49,017 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-18 14:49:49,756 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2022-02-18 14:49:49,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637429793] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:49:49,757 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:49:49,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 12, 12] total 49 [2022-02-18 14:49:49,757 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016106234] [2022-02-18 14:49:49,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:49:49,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-02-18 14:49:49,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:49:49,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-02-18 14:49:49,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=2123, Unknown=1, NotChecked=92, Total=2352 [2022-02-18 14:49:49,758 INFO L87 Difference]: Start difference. First operand 147094 states and 556796 transitions. Second operand has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:49:56,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:49:56,366 INFO L93 Difference]: Finished difference Result 193050 states and 721872 transitions. [2022-02-18 14:49:56,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-18 14:49:56,367 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 0 states have call successors, (0), 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 202 [2022-02-18 14:49:56,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:49:57,734 INFO L225 Difference]: With dead ends: 193050 [2022-02-18 14:49:57,734 INFO L226 Difference]: Without dead ends: 186906 [2022-02-18 14:49:57,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 388 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2859 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1667, Invalid=10768, Unknown=1, NotChecked=220, Total=12656 [2022-02-18 14:49:57,735 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 2170 mSDsluCounter, 5543 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 5445 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 366 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-18 14:49:57,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2170 Valid, 5445 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1909 Invalid, 0 Unknown, 366 Unchecked, 0.9s Time] [2022-02-18 14:49:57,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186906 states. [2022-02-18 14:50:02,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186906 to 143636. [2022-02-18 14:50:02,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143636 states, 143635 states have (on average 3.7910537125352457) internal successors, (544528), 143635 states have internal predecessors, (544528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:50:03,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143636 states to 143636 states and 544528 transitions. [2022-02-18 14:50:03,469 INFO L78 Accepts]: Start accepts. Automaton has 143636 states and 544528 transitions. Word has length 202 [2022-02-18 14:50:03,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:50:03,469 INFO L470 AbstractCegarLoop]: Abstraction has 143636 states and 544528 transitions. [2022-02-18 14:50:03,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:50:03,470 INFO L276 IsEmpty]: Start isEmpty. Operand 143636 states and 544528 transitions. [2022-02-18 14:50:04,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-18 14:50:04,183 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:50:04,183 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:50:04,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-18 14:50:04,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2022-02-18 14:50:04,388 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:50:04,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:50:04,388 INFO L85 PathProgramCache]: Analyzing trace with hash 82848270, now seen corresponding path program 10 times [2022-02-18 14:50:04,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:50:04,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089565080] [2022-02-18 14:50:04,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:50:04,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:50:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:50:07,959 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:50:07,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:50:07,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089565080] [2022-02-18 14:50:07,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089565080] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:50:07,960 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347035180] [2022-02-18 14:50:07,960 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 14:50:07,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:50:07,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:50:07,961 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:50:07,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-18 14:50:08,084 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 14:50:08,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:50:08,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 44 conjunts are in the unsatisfiable core [2022-02-18 14:50:08,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:50:09,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:50:09,960 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:50:10,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:50:10,204 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:50:10,278 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-18 14:50:10,427 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:50:10,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:50:10,907 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:50:10,908 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 167 treesize of output 159 [2022-02-18 14:50:10,910 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 126 [2022-02-18 14:50:10,915 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 102 [2022-02-18 14:50:12,895 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:50:12,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347035180] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:50:12,896 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:50:12,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 25, 25] total 87 [2022-02-18 14:50:12,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362751742] [2022-02-18 14:50:12,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:50:12,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-02-18 14:50:12,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:50:12,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-02-18 14:50:12,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=7063, Unknown=34, NotChecked=0, Total=7482 [2022-02-18 14:50:12,897 INFO L87 Difference]: Start difference. First operand 143636 states and 544528 transitions. Second operand has 87 states, 87 states have (on average 5.747126436781609) internal successors, (500), 87 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:50:59,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:50:59,403 INFO L93 Difference]: Finished difference Result 727448 states and 2739609 transitions. [2022-02-18 14:50:59,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-02-18 14:50:59,404 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.747126436781609) internal successors, (500), 87 states have internal predecessors, (500), 0 states have call successors, (0), 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 202 [2022-02-18 14:50:59,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:51:04,633 INFO L225 Difference]: With dead ends: 727448 [2022-02-18 14:51:04,633 INFO L226 Difference]: Without dead ends: 704930 [2022-02-18 14:51:04,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 365 SyntacticMatches, 9 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26430 ImplicationChecksByTransitivity, 34.0s TimeCoverageRelationStatistics Valid=7838, Invalid=74039, Unknown=205, NotChecked=0, Total=82082 [2022-02-18 14:51:04,636 INFO L933 BasicCegarLoop]: 803 mSDtfsCounter, 10154 mSDsluCounter, 43309 mSDsCounter, 0 mSdLazyCounter, 13149 mSolverCounterSat, 692 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10154 SdHoareTripleChecker+Valid, 40023 SdHoareTripleChecker+Invalid, 22233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 692 IncrementalHoareTripleChecker+Valid, 13149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8392 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:51:04,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10154 Valid, 40023 Invalid, 22233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [692 Valid, 13149 Invalid, 0 Unknown, 8392 Unchecked, 7.1s Time] [2022-02-18 14:51:06,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704930 states. [2022-02-18 14:51:25,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704930 to 242655. [2022-02-18 14:51:25,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242655 states, 242654 states have (on average 3.8465139663883554) internal successors, (933372), 242654 states have internal predecessors, (933372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:51:27,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242655 states to 242655 states and 933372 transitions. [2022-02-18 14:51:27,614 INFO L78 Accepts]: Start accepts. Automaton has 242655 states and 933372 transitions. Word has length 202 [2022-02-18 14:51:27,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:51:27,615 INFO L470 AbstractCegarLoop]: Abstraction has 242655 states and 933372 transitions. [2022-02-18 14:51:27,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.747126436781609) internal successors, (500), 87 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:51:27,615 INFO L276 IsEmpty]: Start isEmpty. Operand 242655 states and 933372 transitions. [2022-02-18 14:51:28,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-18 14:51:28,729 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:51:28,734 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:51:28,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-18 14:51:28,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:51:28,948 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:51:28,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:51:28,948 INFO L85 PathProgramCache]: Analyzing trace with hash -327673536, now seen corresponding path program 11 times [2022-02-18 14:51:28,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:51:28,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798967729] [2022-02-18 14:51:28,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:51:28,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:51:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:51:30,110 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:51:30,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:51:30,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798967729] [2022-02-18 14:51:30,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798967729] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:51:30,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818527320] [2022-02-18 14:51:30,111 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 14:51:30,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:51:30,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:51:30,112 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:51:30,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-18 14:51:30,312 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-02-18 14:51:30,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:51:30,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 34 conjunts are in the unsatisfiable core [2022-02-18 14:51:30,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:51:31,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:51:31,154 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:51:31,197 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-18 14:51:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-18 14:51:31,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:51:31,363 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1933 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1933) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-18 14:51:31,385 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:51:31,386 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 45 [2022-02-18 14:51:31,388 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-18 14:51:32,068 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2022-02-18 14:51:32,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818527320] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:51:32,068 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:51:32,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 16, 12] total 48 [2022-02-18 14:51:32,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137580287] [2022-02-18 14:51:32,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:51:32,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-18 14:51:32,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:51:32,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-18 14:51:32,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=2028, Unknown=1, NotChecked=90, Total=2256 [2022-02-18 14:51:32,069 INFO L87 Difference]: Start difference. First operand 242655 states and 933372 transitions. Second operand has 48 states, 48 states have (on average 9.270833333333334) internal successors, (445), 48 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:51:41,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:51:41,098 INFO L93 Difference]: Finished difference Result 313929 states and 1192252 transitions. [2022-02-18 14:51:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-18 14:51:41,098 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 9.270833333333334) internal successors, (445), 48 states have internal predecessors, (445), 0 states have call successors, (0), 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 202 [2022-02-18 14:51:41,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:51:44,450 INFO L225 Difference]: With dead ends: 313929 [2022-02-18 14:51:44,450 INFO L226 Difference]: Without dead ends: 306892 [2022-02-18 14:51:44,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 383 SyntacticMatches, 3 SemanticMatches, 115 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3205 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1625, Invalid=11718, Unknown=1, NotChecked=228, Total=13572 [2022-02-18 14:51:44,451 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 2263 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 2560 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 6637 SdHoareTripleChecker+Invalid, 2986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 318 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:51:44,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2263 Valid, 6637 Invalid, 2986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2560 Invalid, 0 Unknown, 318 Unchecked, 1.0s Time] [2022-02-18 14:51:45,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306892 states. [2022-02-18 14:51:52,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306892 to 243425. [2022-02-18 14:51:53,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243425 states, 243424 states have (on average 3.8519784409096887) internal successors, (937664), 243424 states have internal predecessors, (937664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:51:55,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243425 states to 243425 states and 937664 transitions. [2022-02-18 14:51:55,114 INFO L78 Accepts]: Start accepts. Automaton has 243425 states and 937664 transitions. Word has length 202 [2022-02-18 14:51:55,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:51:55,114 INFO L470 AbstractCegarLoop]: Abstraction has 243425 states and 937664 transitions. [2022-02-18 14:51:55,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 9.270833333333334) internal successors, (445), 48 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:51:55,114 INFO L276 IsEmpty]: Start isEmpty. Operand 243425 states and 937664 transitions. [2022-02-18 14:51:56,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-02-18 14:51:56,059 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:51:56,060 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:51:56,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-02-18 14:51:56,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:51:56,273 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:51:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:51:56,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1692263576, now seen corresponding path program 12 times [2022-02-18 14:51:56,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:51:56,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313624282] [2022-02-18 14:51:56,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:51:56,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:51:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:51:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 14:51:57,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:51:57,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313624282] [2022-02-18 14:51:57,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313624282] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:51:57,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8253521] [2022-02-18 14:51:57,024 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 14:51:57,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:51:57,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:51:57,025 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:51:57,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-18 14:51:57,233 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-02-18 14:51:57,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:51:57,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-18 14:51:57,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:51:58,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:51:58,300 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:51:58,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:51:58,371 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-02-18 14:51:58,398 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-18 14:51:58,453 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-02-18 14:51:58,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:51:58,522 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1983 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1983) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-18 14:51:58,550 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1983 (Array Int Int)) (v_ArrVal_1982 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_1982) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1983) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-02-18 14:51:58,576 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:51:58,576 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 85 [2022-02-18 14:51:58,580 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 52 [2022-02-18 14:51:58,582 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-02-18 14:51:59,265 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2022-02-18 14:51:59,265 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8253521] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:51:59,266 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:51:59,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 14, 14] total 46 [2022-02-18 14:51:59,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382319495] [2022-02-18 14:51:59,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:51:59,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-18 14:51:59,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:51:59,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-18 14:51:59,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1757, Unknown=2, NotChecked=170, Total=2070 [2022-02-18 14:51:59,267 INFO L87 Difference]: Start difference. First operand 243425 states and 937664 transitions. Second operand has 46 states, 46 states have (on average 9.934782608695652) internal successors, (457), 46 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:52:04,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:52:04,570 INFO L93 Difference]: Finished difference Result 263834 states and 1009556 transitions. [2022-02-18 14:52:04,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-18 14:52:04,571 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 9.934782608695652) internal successors, (457), 46 states have internal predecessors, (457), 0 states have call successors, (0), 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 202 [2022-02-18 14:52:04,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:52:06,288 INFO L225 Difference]: With dead ends: 263834 [2022-02-18 14:52:06,288 INFO L226 Difference]: Without dead ends: 254658 [2022-02-18 14:52:06,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 384 SyntacticMatches, 4 SemanticMatches, 95 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1425, Invalid=7511, Unknown=2, NotChecked=374, Total=9312 [2022-02-18 14:52:06,289 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 2069 mSDsluCounter, 5249 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 5151 SdHoareTripleChecker+Invalid, 2493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 732 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-02-18 14:52:06,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2069 Valid, 5151 Invalid, 2493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1686 Invalid, 0 Unknown, 732 Unchecked, 0.6s Time] [2022-02-18 14:52:06,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254658 states. [2022-02-18 14:52:14,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254658 to 230641. [2022-02-18 14:52:14,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230641 states, 230640 states have (on average 3.8685006937218174) internal successors, (892231), 230640 states have internal predecessors, (892231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:52:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230641 states to 230641 states and 892231 transitions. [2022-02-18 14:52:16,698 INFO L78 Accepts]: Start accepts. Automaton has 230641 states and 892231 transitions. Word has length 202 [2022-02-18 14:52:16,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:52:16,698 INFO L470 AbstractCegarLoop]: Abstraction has 230641 states and 892231 transitions. [2022-02-18 14:52:16,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 9.934782608695652) internal successors, (457), 46 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:52:16,698 INFO L276 IsEmpty]: Start isEmpty. Operand 230641 states and 892231 transitions. [2022-02-18 14:52:17,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-02-18 14:52:17,654 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:52:17,654 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:52:17,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-18 14:52:17,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2022-02-18 14:52:17,870 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:52:17,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:52:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1515193959, now seen corresponding path program 1 times [2022-02-18 14:52:17,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:52:17,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070121687] [2022-02-18 14:52:17,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:52:17,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:52:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:52:19,899 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:52:19,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:52:19,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070121687] [2022-02-18 14:52:19,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070121687] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:52:19,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238575838] [2022-02-18 14:52:19,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:52:19,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:52:19,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:52:19,900 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:52:19,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-02-18 14:52:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:52:20,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 65 conjunts are in the unsatisfiable core [2022-02-18 14:52:20,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:52:22,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:52:22,535 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-02-18 14:52:22,536 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2022-02-18 14:52:22,541 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-02-18 14:52:22,607 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-02-18 14:52:22,649 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:52:22,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:52:22,707 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2032 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2032) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))) is different from false [2022-02-18 14:52:23,179 INFO L353 Elim1Store]: treesize reduction 27, result has 75.2 percent of original size [2022-02-18 14:52:23,179 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 114 [2022-02-18 14:52:23,187 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-18 14:52:26,892 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-02-18 14:52:26,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238575838] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:52:26,892 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:52:26,893 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 35, 33] total 101 [2022-02-18 14:52:26,893 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347375223] [2022-02-18 14:52:26,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:52:26,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-02-18 14:52:26,893 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:52:26,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-02-18 14:52:26,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=869, Invalid=9034, Unknown=1, NotChecked=196, Total=10100 [2022-02-18 14:52:26,894 INFO L87 Difference]: Start difference. First operand 230641 states and 892231 transitions. Second operand has 101 states, 101 states have (on average 5.108910891089109) internal successors, (516), 101 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:52:46,275 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_2032 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2032) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))))) (and .cse0 (or .cse0 (not (<= 0 c_~q1_back~0)) (not (< c_~q2_back~0 c_~n2~0)) (not (< c_~q1_back~0 c_~n1~0)) (not (<= 0 c_~q2_back~0))))) is different from false [2022-02-18 14:52:56,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:52:56,946 INFO L93 Difference]: Finished difference Result 616132 states and 2358095 transitions. [2022-02-18 14:52:56,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2022-02-18 14:52:56,947 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 101 states have (on average 5.108910891089109) internal successors, (516), 101 states have internal predecessors, (516), 0 states have call successors, (0), 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 208 [2022-02-18 14:52:56,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:53:04,451 INFO L225 Difference]: With dead ends: 616132 [2022-02-18 14:53:04,452 INFO L226 Difference]: Without dead ends: 616132 [2022-02-18 14:53:04,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 361 SyntacticMatches, 26 SemanticMatches, 233 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 19318 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=7206, Invalid=46856, Unknown=2, NotChecked=926, Total=54990 [2022-02-18 14:53:04,454 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 8059 mSDsluCounter, 21474 mSDsCounter, 0 mSdLazyCounter, 6234 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8059 SdHoareTripleChecker+Valid, 19685 SdHoareTripleChecker+Invalid, 11186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 6234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4381 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-18 14:53:04,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8059 Valid, 19685 Invalid, 11186 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [571 Valid, 6234 Invalid, 0 Unknown, 4381 Unchecked, 3.0s Time] [2022-02-18 14:53:06,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616132 states. [2022-02-18 14:53:20,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616132 to 250624. [2022-02-18 14:53:20,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250624 states, 250623 states have (on average 3.833866005913264) internal successors, (960855), 250623 states have internal predecessors, (960855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:53:22,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250624 states to 250624 states and 960855 transitions. [2022-02-18 14:53:22,333 INFO L78 Accepts]: Start accepts. Automaton has 250624 states and 960855 transitions. Word has length 208 [2022-02-18 14:53:22,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 14:53:22,334 INFO L470 AbstractCegarLoop]: Abstraction has 250624 states and 960855 transitions. [2022-02-18 14:53:22,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 5.108910891089109) internal successors, (516), 101 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:53:22,334 INFO L276 IsEmpty]: Start isEmpty. Operand 250624 states and 960855 transitions. [2022-02-18 14:53:23,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-02-18 14:53:23,340 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 14:53:23,341 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 14:53:23,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-02-18 14:53:23,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:53:23,556 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 14:53:23,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 14:53:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1725868805, now seen corresponding path program 2 times [2022-02-18 14:53:23,556 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 14:53:23,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210588774] [2022-02-18 14:53:23,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 14:53:23,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 14:53:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 14:53:25,627 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 14:53:25,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 14:53:25,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210588774] [2022-02-18 14:53:25,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210588774] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 14:53:25,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490348902] [2022-02-18 14:53:25,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 14:53:25,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 14:53:25,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 14:53:25,629 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 14:53:25,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-02-18 14:53:25,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 14:53:25,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 14:53:25,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 39 conjunts are in the unsatisfiable core [2022-02-18 14:53:25,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 14:53:27,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 14:53:27,020 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-02-18 14:53:27,114 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 8 [2022-02-18 14:53:27,139 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-18 14:53:27,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 14:53:27,232 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2081 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2081) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))) is different from false [2022-02-18 14:53:27,425 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 14:53:27,425 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 44 [2022-02-18 14:53:27,428 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-02-18 14:53:28,817 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-18 14:53:28,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490348902] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 14:53:28,817 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 14:53:28,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 22, 22] total 77 [2022-02-18 14:53:28,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467467053] [2022-02-18 14:53:28,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 14:53:28,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-02-18 14:53:28,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 14:53:28,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-02-18 14:53:28,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=5346, Unknown=1, NotChecked=148, Total=5852 [2022-02-18 14:53:28,820 INFO L87 Difference]: Start difference. First operand 250624 states and 960855 transitions. Second operand has 77 states, 77 states have (on average 6.35064935064935) internal successors, (489), 77 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 14:53:47,415 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2081 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_2081) c_~q2~0.base) (+ c_~q2~0.offset (* c_~q2_front~0 4))) 0))) (not (= |c_thread3Thread1of1ForFork2_~k~0#1| 0))) is different from false [2022-02-18 14:54:04,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 14:54:04,904 INFO L93 Difference]: Finished difference Result 1289238 states and 4962415 transitions. [2022-02-18 14:54:04,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-02-18 14:54:04,904 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 6.35064935064935) internal successors, (489), 77 states have internal predecessors, (489), 0 states have call successors, (0), 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 208 [2022-02-18 14:54:04,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 14:54:15,889 INFO L225 Difference]: With dead ends: 1289238 [2022-02-18 14:54:15,890 INFO L226 Difference]: Without dead ends: 1289238 [2022-02-18 14:54:15,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 402 SyntacticMatches, 56 SemanticMatches, 248 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 27241 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=5846, Invalid=55387, Unknown=31, NotChecked=986, Total=62250 [2022-02-18 14:54:15,892 INFO L933 BasicCegarLoop]: 477 mSDtfsCounter, 6763 mSDsluCounter, 21266 mSDsCounter, 0 mSdLazyCounter, 6052 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6763 SdHoareTripleChecker+Valid, 19409 SdHoareTripleChecker+Invalid, 14064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 6052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7545 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-18 14:54:15,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6763 Valid, 19409 Invalid, 14064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [467 Valid, 6052 Invalid, 0 Unknown, 7545 Unchecked, 3.1s Time] [2022-02-18 14:54:18,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289238 states.