/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/parallel-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 15:43:20,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 15:43:20,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 15:43:20,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 15:43:20,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 15:43:20,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 15:43:20,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 15:43:20,222 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 [2022-03-01 15:43:20,235 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 15:43:20,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 15:43:20,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 15:43:20,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 15:43:20,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 15:43:20,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 15:43:20,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 15:43:20,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 15:43:20,237 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 15:43:20,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 15:43:20,237 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 15:43:20,237 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 15:43:20,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 15:43:20,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 15:43:20,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 15:43:20,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 15:43:20,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 15:43:20,238 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 15:43:20,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 15:43:20,238 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 15:43:20,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 15:43:20,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 15:43:20,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 15:43:20,239 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 15:43:20,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 15:43:20,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:43:20,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 15:43:20,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 15:43:20,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 15:43:20,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 15:43:20,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 15:43:20,240 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 15:43:20,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 15:43:20,240 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 15:43:20,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 15:43:20,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 15:43:20,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 15:43:20,440 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 15:43:20,440 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 15:43:20,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-03-01 15:43:20,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53605e4aa/eef4bb790edb4cb7abec018c221fb803/FLAG2a1f269c3 [2022-03-01 15:43:20,850 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 15:43:20,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-03-01 15:43:20,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53605e4aa/eef4bb790edb4cb7abec018c221fb803/FLAG2a1f269c3 [2022-03-01 15:43:21,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53605e4aa/eef4bb790edb4cb7abec018c221fb803 [2022-03-01 15:43:21,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 15:43:21,294 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 15:43:21,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 15:43:21,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 15:43:21,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 15:43:21,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd7500f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21, skipping insertion in model container [2022-03-01 15:43:21,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 15:43:21,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 15:43:21,531 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/parallel-ticket-5.wvr.c[3963,3976] [2022-03-01 15:43:21,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:43:21,548 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 15:43:21,584 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/parallel-ticket-5.wvr.c[3963,3976] [2022-03-01 15:43:21,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:43:21,600 INFO L208 MainTranslator]: Completed translation [2022-03-01 15:43:21,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21 WrapperNode [2022-03-01 15:43:21,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 15:43:21,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 15:43:21,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 15:43:21,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 15:43:21,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,653 INFO L137 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2022-03-01 15:43:21,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 15:43:21,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 15:43:21,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 15:43:21,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 15:43:21,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 15:43:21,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 15:43:21,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 15:43:21,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 15:43:21,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21" (1/1) ... [2022-03-01 15:43:21,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:43:21,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:43:21,711 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) [2022-03-01 15:43:21,714 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 [2022-03-01 15:43:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 15:43:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 15:43:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 15:43:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 15:43:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 15:43:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 15:43:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 15:43:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-01 15:43:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-01 15:43:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 15:43:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-03-01 15:43:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-03-01 15:43:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 15:43:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 15:43:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-01 15:43:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-01 15:43:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 15:43:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 15:43:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 15:43:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 15:43:21,770 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 15:43:21,859 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 15:43:21,860 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 15:43:22,116 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 15:43:22,161 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 15:43:22,161 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 15:43:22,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:43:22 BoogieIcfgContainer [2022-03-01 15:43:22,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 15:43:22,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 15:43:22,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 15:43:22,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 15:43:22,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 03:43:21" (1/3) ... [2022-03-01 15:43:22,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214fdf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:43:22, skipping insertion in model container [2022-03-01 15:43:22,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:43:21" (2/3) ... [2022-03-01 15:43:22,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214fdf9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:43:22, skipping insertion in model container [2022-03-01 15:43:22,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:43:22" (3/3) ... [2022-03-01 15:43:22,168 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-03-01 15:43:22,171 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 15:43:22,171 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 15:43:22,171 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 15:43:22,171 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 15:43:22,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,216 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,216 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,216 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,217 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,217 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,217 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,217 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,217 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,218 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,218 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,218 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,218 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,218 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,218 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,218 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,218 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,219 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,219 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,219 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,219 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,219 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,220 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,220 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,220 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,220 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,222 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,223 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,224 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,224 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,224 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,224 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,224 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,224 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,225 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,226 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,226 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,226 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,226 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,226 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,226 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,227 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,227 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,227 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,227 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,227 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:43:22,241 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-03-01 15:43:22,283 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 15:43:22,293 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 [2022-03-01 15:43:22,293 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-03-01 15:43:22,304 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 179 places, 165 transitions, 370 flow [2022-03-01 15:43:25,523 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 104505 states, 104504 states have (on average 4.851670749444997) internal successors, (507019), 104504 states have internal predecessors, (507019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:25,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 104505 states, 104504 states have (on average 4.851670749444997) internal successors, (507019), 104504 states have internal predecessors, (507019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:26,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:43:26,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:26,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:26,565 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:43:26,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:26,569 INFO L85 PathProgramCache]: Analyzing trace with hash 337044275, now seen corresponding path program 1 times [2022-03-01 15:43:26,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:26,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68037999] [2022-03-01 15:43:26,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:26,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:26,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:26,927 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:26,927 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68037999] [2022-03-01 15:43:26,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68037999] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:26,928 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:26,928 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 15:43:26,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790699827] [2022-03-01 15:43:26,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:26,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:43:26,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:26,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:43:26,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:43:27,177 INFO L87 Difference]: Start difference. First operand has 104505 states, 104504 states have (on average 4.851670749444997) internal successors, (507019), 104504 states have internal predecessors, (507019), 0 states have call successors, (0), 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 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:31,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:31,207 INFO L93 Difference]: Finished difference Result 278147 states and 1328367 transitions. [2022-03-01 15:43:31,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 15:43:31,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:43:31,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:34,481 INFO L225 Difference]: With dead ends: 278147 [2022-03-01 15:43:34,483 INFO L226 Difference]: Without dead ends: 278144 [2022-03-01 15:43:34,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-01 15:43:34,489 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 322 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:34,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 618 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:43:35,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278144 states. [2022-03-01 15:43:43,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278144 to 132290. [2022-03-01 15:43:43,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132290 states, 132289 states have (on average 4.78342114612704) internal successors, (632794), 132289 states have internal predecessors, (632794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:45,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132290 states to 132290 states and 632794 transitions. [2022-03-01 15:43:45,600 INFO L78 Accepts]: Start accepts. Automaton has 132290 states and 632794 transitions. Word has length 141 [2022-03-01 15:43:45,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:43:45,602 INFO L470 AbstractCegarLoop]: Abstraction has 132290 states and 632794 transitions. [2022-03-01 15:43:45,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:45,603 INFO L276 IsEmpty]: Start isEmpty. Operand 132290 states and 632794 transitions. [2022-03-01 15:43:46,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:43:46,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:43:46,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:43:46,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 15:43:46,098 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:43:46,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:43:46,099 INFO L85 PathProgramCache]: Analyzing trace with hash 927256055, now seen corresponding path program 2 times [2022-03-01 15:43:46,099 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:43:46,099 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192165567] [2022-03-01 15:43:46,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:43:46,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:43:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:43:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:43:46,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:43:46,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192165567] [2022-03-01 15:43:46,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192165567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:43:46,282 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:43:46,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 15:43:46,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380993904] [2022-03-01 15:43:46,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:43:46,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 15:43:46,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:43:46,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 15:43:46,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-01 15:43:46,284 INFO L87 Difference]: Start difference. First operand 132290 states and 632794 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:43:50,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:43:50,346 INFO L93 Difference]: Finished difference Result 302031 states and 1436129 transitions. [2022-03-01 15:43:50,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 15:43:50,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:43:50,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:43:53,519 INFO L225 Difference]: With dead ends: 302031 [2022-03-01 15:43:53,519 INFO L226 Difference]: Without dead ends: 302031 [2022-03-01 15:43:53,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:43:53,522 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 302 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:43:53,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 773 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:43:54,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302031 states. [2022-03-01 15:44:02,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302031 to 151275. [2022-03-01 15:44:02,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151275 states, 151274 states have (on average 4.745825455795444) internal successors, (717920), 151274 states have internal predecessors, (717920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151275 states to 151275 states and 717920 transitions. [2022-03-01 15:44:04,787 INFO L78 Accepts]: Start accepts. Automaton has 151275 states and 717920 transitions. Word has length 141 [2022-03-01 15:44:04,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:04,787 INFO L470 AbstractCegarLoop]: Abstraction has 151275 states and 717920 transitions. [2022-03-01 15:44:04,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:04,788 INFO L276 IsEmpty]: Start isEmpty. Operand 151275 states and 717920 transitions. [2022-03-01 15:44:05,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:44:05,690 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:05,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:05,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 15:44:05,690 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:44:05,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:05,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1372275635, now seen corresponding path program 3 times [2022-03-01 15:44:05,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:05,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937589108] [2022-03-01 15:44:05,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:05,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:06,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:06,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937589108] [2022-03-01 15:44:06,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937589108] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:06,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:06,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-01 15:44:06,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575698283] [2022-03-01 15:44:06,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:06,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-01 15:44:06,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:06,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-01 15:44:06,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-03-01 15:44:06,334 INFO L87 Difference]: Start difference. First operand 151275 states and 717920 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:10,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:10,202 INFO L93 Difference]: Finished difference Result 226530 states and 1066169 transitions. [2022-03-01 15:44:10,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-01 15:44:10,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:44:10,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:12,044 INFO L225 Difference]: With dead ends: 226530 [2022-03-01 15:44:12,044 INFO L226 Difference]: Without dead ends: 146466 [2022-03-01 15:44:12,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2022-03-01 15:44:12,045 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 469 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:12,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 999 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:44:13,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146466 states. [2022-03-01 15:44:18,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146466 to 146038. [2022-03-01 15:44:18,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146038 states, 146037 states have (on average 4.742373508083568) internal successors, (692562), 146037 states have internal predecessors, (692562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146038 states to 146038 states and 692562 transitions. [2022-03-01 15:44:20,431 INFO L78 Accepts]: Start accepts. Automaton has 146038 states and 692562 transitions. Word has length 141 [2022-03-01 15:44:20,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:20,433 INFO L470 AbstractCegarLoop]: Abstraction has 146038 states and 692562 transitions. [2022-03-01 15:44:20,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:20,433 INFO L276 IsEmpty]: Start isEmpty. Operand 146038 states and 692562 transitions. [2022-03-01 15:44:21,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:44:21,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:21,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:21,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 15:44:21,662 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:44:21,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:21,663 INFO L85 PathProgramCache]: Analyzing trace with hash -427148241, now seen corresponding path program 4 times [2022-03-01 15:44:21,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:21,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284990091] [2022-03-01 15:44:21,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:21,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:21,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:21,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284990091] [2022-03-01 15:44:21,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284990091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:21,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:21,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 15:44:21,936 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820320449] [2022-03-01 15:44:21,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:21,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:44:21,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:21,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:44:21,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:44:21,937 INFO L87 Difference]: Start difference. First operand 146038 states and 692562 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:25,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:25,648 INFO L93 Difference]: Finished difference Result 299654 states and 1406659 transitions. [2022-03-01 15:44:25,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:44:25,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:44:25,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:28,402 INFO L225 Difference]: With dead ends: 299654 [2022-03-01 15:44:28,402 INFO L226 Difference]: Without dead ends: 299654 [2022-03-01 15:44:28,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-01 15:44:28,432 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 245 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:28,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 683 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:44:29,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299654 states. [2022-03-01 15:44:38,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299654 to 167825. [2022-03-01 15:44:39,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167825 states, 167824 states have (on average 4.665965535322719) internal successors, (783061), 167824 states have internal predecessors, (783061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:40,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167825 states to 167825 states and 783061 transitions. [2022-03-01 15:44:40,877 INFO L78 Accepts]: Start accepts. Automaton has 167825 states and 783061 transitions. Word has length 141 [2022-03-01 15:44:40,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:40,878 INFO L470 AbstractCegarLoop]: Abstraction has 167825 states and 783061 transitions. [2022-03-01 15:44:40,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:40,878 INFO L276 IsEmpty]: Start isEmpty. Operand 167825 states and 783061 transitions. [2022-03-01 15:44:41,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:44:41,888 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:41,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:41,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 15:44:41,888 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:44:41,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:41,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1402004545, now seen corresponding path program 5 times [2022-03-01 15:44:41,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:41,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876667351] [2022-03-01 15:44:41,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:41,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:42,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:42,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:42,055 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876667351] [2022-03-01 15:44:42,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876667351] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:42,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:42,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-01 15:44:42,055 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984179260] [2022-03-01 15:44:42,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:42,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-01 15:44:42,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:42,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-01 15:44:42,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:44:42,057 INFO L87 Difference]: Start difference. First operand 167825 states and 783061 transitions. Second operand has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:44,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:44:44,786 INFO L93 Difference]: Finished difference Result 207636 states and 974306 transitions. [2022-03-01 15:44:44,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 15:44:44,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:44:44,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:44:46,560 INFO L225 Difference]: With dead ends: 207636 [2022-03-01 15:44:46,562 INFO L226 Difference]: Without dead ends: 207594 [2022-03-01 15:44:46,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-03-01 15:44:46,564 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 272 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:44:46,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 1054 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:44:46,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207594 states. [2022-03-01 15:44:54,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207594 to 168171. [2022-03-01 15:44:54,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168171 states, 168170 states have (on average 4.662817387167747) internal successors, (784146), 168170 states have internal predecessors, (784146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:56,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168171 states to 168171 states and 784146 transitions. [2022-03-01 15:44:56,710 INFO L78 Accepts]: Start accepts. Automaton has 168171 states and 784146 transitions. Word has length 141 [2022-03-01 15:44:56,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:44:56,710 INFO L470 AbstractCegarLoop]: Abstraction has 168171 states and 784146 transitions. [2022-03-01 15:44:56,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.1) internal successors, (141), 10 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:44:56,711 INFO L276 IsEmpty]: Start isEmpty. Operand 168171 states and 784146 transitions. [2022-03-01 15:44:57,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:44:57,559 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:44:57,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:44:57,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 15:44:57,560 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:44:57,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:44:57,560 INFO L85 PathProgramCache]: Analyzing trace with hash 967658261, now seen corresponding path program 6 times [2022-03-01 15:44:57,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:44:57,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982521579] [2022-03-01 15:44:57,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:44:57,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:44:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:44:57,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:44:57,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:44:57,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982521579] [2022-03-01 15:44:57,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982521579] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:44:57,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:44:57,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 15:44:57,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351861125] [2022-03-01 15:44:57,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:44:57,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 15:44:57,660 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:44:57,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 15:44:57,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-03-01 15:44:57,661 INFO L87 Difference]: Start difference. First operand 168171 states and 784146 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:01,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:01,043 INFO L93 Difference]: Finished difference Result 276695 states and 1298917 transitions. [2022-03-01 15:45:01,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-01 15:45:01,044 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:45:01,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:03,706 INFO L225 Difference]: With dead ends: 276695 [2022-03-01 15:45:03,707 INFO L226 Difference]: Without dead ends: 276539 [2022-03-01 15:45:03,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:45:03,708 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 334 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:03,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [334 Valid, 827 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:45:04,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276539 states. [2022-03-01 15:45:13,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276539 to 175348. [2022-03-01 15:45:14,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175348 states, 175347 states have (on average 4.655939365942959) internal successors, (816405), 175347 states have internal predecessors, (816405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:15,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175348 states to 175348 states and 816405 transitions. [2022-03-01 15:45:15,708 INFO L78 Accepts]: Start accepts. Automaton has 175348 states and 816405 transitions. Word has length 141 [2022-03-01 15:45:15,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:15,708 INFO L470 AbstractCegarLoop]: Abstraction has 175348 states and 816405 transitions. [2022-03-01 15:45:15,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:15,708 INFO L276 IsEmpty]: Start isEmpty. Operand 175348 states and 816405 transitions. [2022-03-01 15:45:16,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:45:16,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:16,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:16,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 15:45:16,537 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:45:16,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:16,537 INFO L85 PathProgramCache]: Analyzing trace with hash -253399513, now seen corresponding path program 7 times [2022-03-01 15:45:16,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:16,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834202807] [2022-03-01 15:45:16,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:16,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:16,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:16,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834202807] [2022-03-01 15:45:16,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834202807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:16,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:16,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 15:45:16,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818454209] [2022-03-01 15:45:16,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:16,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 15:45:16,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:16,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 15:45:16,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-01 15:45:16,708 INFO L87 Difference]: Start difference. First operand 175348 states and 816405 transitions. Second operand has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:20,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:20,503 INFO L93 Difference]: Finished difference Result 325604 states and 1521083 transitions. [2022-03-01 15:45:20,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 15:45:20,503 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:45:20,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:25,549 INFO L225 Difference]: With dead ends: 325604 [2022-03-01 15:45:25,549 INFO L226 Difference]: Without dead ends: 325418 [2022-03-01 15:45:25,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-03-01 15:45:25,563 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 295 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:25,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [295 Valid, 758 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:45:26,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325418 states. [2022-03-01 15:45:35,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325418 to 188043. [2022-03-01 15:45:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188043 states, 188042 states have (on average 4.631459992980291) internal successors, (870909), 188042 states have internal predecessors, (870909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:37,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188043 states to 188043 states and 870909 transitions. [2022-03-01 15:45:37,892 INFO L78 Accepts]: Start accepts. Automaton has 188043 states and 870909 transitions. Word has length 141 [2022-03-01 15:45:37,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:37,892 INFO L470 AbstractCegarLoop]: Abstraction has 188043 states and 870909 transitions. [2022-03-01 15:45:37,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.625) internal successors, (141), 8 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:37,893 INFO L276 IsEmpty]: Start isEmpty. Operand 188043 states and 870909 transitions. [2022-03-01 15:45:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:45:38,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:45:38,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:45:38,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 15:45:38,807 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:45:38,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:45:38,808 INFO L85 PathProgramCache]: Analyzing trace with hash -565532079, now seen corresponding path program 8 times [2022-03-01 15:45:38,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:45:38,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095872478] [2022-03-01 15:45:38,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:45:38,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:45:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:45:38,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:45:38,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:45:38,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095872478] [2022-03-01 15:45:38,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095872478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:45:38,908 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:45:38,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 15:45:38,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053852974] [2022-03-01 15:45:38,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:45:38,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:45:38,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:45:38,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:45:38,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:45:38,909 INFO L87 Difference]: Start difference. First operand 188043 states and 870909 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:43,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:45:43,165 INFO L93 Difference]: Finished difference Result 326495 states and 1511661 transitions. [2022-03-01 15:45:43,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:45:43,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:45:43,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:45:47,373 INFO L225 Difference]: With dead ends: 326495 [2022-03-01 15:45:47,374 INFO L226 Difference]: Without dead ends: 326327 [2022-03-01 15:45:47,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-01 15:45:47,377 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 316 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:45:47,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 612 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:45:48,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326327 states. [2022-03-01 15:45:56,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326327 to 195428. [2022-03-01 15:45:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195428 states, 195427 states have (on average 4.603683216751012) internal successors, (899684), 195427 states have internal predecessors, (899684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:59,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195428 states to 195428 states and 899684 transitions. [2022-03-01 15:45:59,427 INFO L78 Accepts]: Start accepts. Automaton has 195428 states and 899684 transitions. Word has length 141 [2022-03-01 15:45:59,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:45:59,427 INFO L470 AbstractCegarLoop]: Abstraction has 195428 states and 899684 transitions. [2022-03-01 15:45:59,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:45:59,427 INFO L276 IsEmpty]: Start isEmpty. Operand 195428 states and 899684 transitions. [2022-03-01 15:46:00,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:46:00,125 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:00,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:46:00,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 15:46:00,125 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:46:00,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:00,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2079323817, now seen corresponding path program 9 times [2022-03-01 15:46:00,126 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:00,126 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837873432] [2022-03-01 15:46:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:00,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:00,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:46:00,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:00,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837873432] [2022-03-01 15:46:00,313 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837873432] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:46:00,313 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:46:00,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 15:46:00,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629331797] [2022-03-01 15:46:00,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:46:00,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:46:00,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:00,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:46:00,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:46:00,316 INFO L87 Difference]: Start difference. First operand 195428 states and 899684 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:05,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:05,103 INFO L93 Difference]: Finished difference Result 327908 states and 1515730 transitions. [2022-03-01 15:46:05,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:46:05,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:46:05,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:09,125 INFO L225 Difference]: With dead ends: 327908 [2022-03-01 15:46:09,126 INFO L226 Difference]: Without dead ends: 327728 [2022-03-01 15:46:09,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-01 15:46:09,127 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 157 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:09,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 707 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:46:10,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327728 states. [2022-03-01 15:46:19,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327728 to 201962. [2022-03-01 15:46:19,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201962 states, 201961 states have (on average 4.585117918806106) internal successors, (926015), 201961 states have internal predecessors, (926015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:21,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201962 states to 201962 states and 926015 transitions. [2022-03-01 15:46:21,351 INFO L78 Accepts]: Start accepts. Automaton has 201962 states and 926015 transitions. Word has length 141 [2022-03-01 15:46:21,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:21,351 INFO L470 AbstractCegarLoop]: Abstraction has 201962 states and 926015 transitions. [2022-03-01 15:46:21,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:21,352 INFO L276 IsEmpty]: Start isEmpty. Operand 201962 states and 926015 transitions. [2022-03-01 15:46:22,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:46:22,369 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:22,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:46:22,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 15:46:22,373 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:46:22,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:22,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1277658205, now seen corresponding path program 10 times [2022-03-01 15:46:22,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:22,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260001034] [2022-03-01 15:46:22,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:22,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:46:22,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:22,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260001034] [2022-03-01 15:46:22,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260001034] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:46:22,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:46:22,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-01 15:46:22,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436485305] [2022-03-01 15:46:22,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:46:22,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-01 15:46:22,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:22,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-01 15:46:22,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:46:22,515 INFO L87 Difference]: Start difference. First operand 201962 states and 926015 transitions. Second operand has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:26,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:26,708 INFO L93 Difference]: Finished difference Result 324312 states and 1492298 transitions. [2022-03-01 15:46:26,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:46:26,708 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:46:26,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:30,948 INFO L225 Difference]: With dead ends: 324312 [2022-03-01 15:46:30,949 INFO L226 Difference]: Without dead ends: 324312 [2022-03-01 15:46:30,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-03-01 15:46:30,951 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 184 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:30,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 785 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:46:31,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324312 states. [2022-03-01 15:46:40,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324312 to 210711. [2022-03-01 15:46:41,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210711 states, 210710 states have (on average 4.540358786958379) internal successors, (956699), 210710 states have internal predecessors, (956699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210711 states to 210711 states and 956699 transitions. [2022-03-01 15:46:43,199 INFO L78 Accepts]: Start accepts. Automaton has 210711 states and 956699 transitions. Word has length 141 [2022-03-01 15:46:43,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:46:43,199 INFO L470 AbstractCegarLoop]: Abstraction has 210711 states and 956699 transitions. [2022-03-01 15:46:43,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.142857142857142) internal successors, (141), 7 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:43,200 INFO L276 IsEmpty]: Start isEmpty. Operand 210711 states and 956699 transitions. [2022-03-01 15:46:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:46:44,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:46:44,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:46:44,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 15:46:44,239 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:46:44,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:46:44,240 INFO L85 PathProgramCache]: Analyzing trace with hash 952884763, now seen corresponding path program 11 times [2022-03-01 15:46:44,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:46:44,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443912768] [2022-03-01 15:46:44,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:46:44,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:46:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:46:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:46:44,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:46:44,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443912768] [2022-03-01 15:46:44,338 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443912768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:46:44,338 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:46:44,338 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-01 15:46:44,338 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550419020] [2022-03-01 15:46:44,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:46:44,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-01 15:46:44,339 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:46:44,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-01 15:46:44,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-03-01 15:46:44,339 INFO L87 Difference]: Start difference. First operand 210711 states and 956699 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:46:49,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:46:49,926 INFO L93 Difference]: Finished difference Result 372906 states and 1696490 transitions. [2022-03-01 15:46:49,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-01 15:46:49,927 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:46:49,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:46:54,165 INFO L225 Difference]: With dead ends: 372906 [2022-03-01 15:46:54,165 INFO L226 Difference]: Without dead ends: 372906 [2022-03-01 15:46:54,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2022-03-01 15:46:54,166 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 366 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:46:54,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [366 Valid, 875 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:46:54,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372906 states. [2022-03-01 15:47:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372906 to 227658. [2022-03-01 15:47:07,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227658 states, 227657 states have (on average 4.498842557004616) internal successors, (1024193), 227657 states have internal predecessors, (1024193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:47:09,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227658 states to 227658 states and 1024193 transitions. [2022-03-01 15:47:09,056 INFO L78 Accepts]: Start accepts. Automaton has 227658 states and 1024193 transitions. Word has length 141 [2022-03-01 15:47:09,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:47:09,057 INFO L470 AbstractCegarLoop]: Abstraction has 227658 states and 1024193 transitions. [2022-03-01 15:47:09,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 9 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:47:09,057 INFO L276 IsEmpty]: Start isEmpty. Operand 227658 states and 1024193 transitions. [2022-03-01 15:47:10,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-01 15:47:10,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:47:10,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:47:10,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-01 15:47:10,794 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-03-01 15:47:10,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:47:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash 2143037529, now seen corresponding path program 12 times [2022-03-01 15:47:10,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:47:10,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230493830] [2022-03-01 15:47:10,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:47:10,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:47:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:47:11,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:47:11,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:47:11,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230493830] [2022-03-01 15:47:11,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230493830] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:47:11,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:47:11,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-03-01 15:47:11,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101252632] [2022-03-01 15:47:11,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:47:11,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-01 15:47:11,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:47:11,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-01 15:47:11,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-03-01 15:47:11,216 INFO L87 Difference]: Start difference. First operand 227658 states and 1024193 transitions. Second operand has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:47:16,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:47:16,500 INFO L93 Difference]: Finished difference Result 352818 states and 1591791 transitions. [2022-03-01 15:47:16,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-01 15:47:16,500 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-03-01 15:47:16,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:47:18,945 INFO L225 Difference]: With dead ends: 352818 [2022-03-01 15:47:18,945 INFO L226 Difference]: Without dead ends: 177480 [2022-03-01 15:47:18,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-03-01 15:47:18,946 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 552 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:47:18,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [552 Valid, 1027 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:47:19,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177480 states. [2022-03-01 15:47:25,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177480 to 177480. [2022-03-01 15:47:26,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177480 states, 177479 states have (on average 4.445680897458291) internal successors, (789015), 177479 states have internal predecessors, (789015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:47:28,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177480 states to 177480 states and 789015 transitions. [2022-03-01 15:47:28,785 INFO L78 Accepts]: Start accepts. Automaton has 177480 states and 789015 transitions. Word has length 141 [2022-03-01 15:47:28,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:47:28,785 INFO L470 AbstractCegarLoop]: Abstraction has 177480 states and 789015 transitions. [2022-03-01 15:47:28,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:47:28,785 INFO L276 IsEmpty]: Start isEmpty. Operand 177480 states and 789015 transitions.