/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/concurrent/pthreads/regression/mainThreadTerminates.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 02:13:37,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 02:13:37,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 02:13:37,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 02:13:37,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 02:13:37,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 02:13:37,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 02:13:37,657 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-09 02:13:37,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 02:13:37,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 02:13:37,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 02:13:37,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 02:13:37,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 02:13:37,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 02:13:37,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 02:13:37,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 02:13:37,690 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 02:13:37,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 02:13:37,690 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 02:13:37,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 02:13:37,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 02:13:37,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 02:13:37,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 02:13:37,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 02:13:37,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 02:13:37,694 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 02:13:37,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 02:13:37,694 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 02:13:37,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 02:13:37,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 02:13:37,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 02:13:37,695 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 02:13:37,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 02:13:37,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 02:13:37,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 02:13:37,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 02:13:37,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 02:13:37,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 02:13:37,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 02:13:37,696 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 02:13:37,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 02:13:37,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 02:13:37,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 02:13:37,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 02:13:37,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 02:13:37,935 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 02:13:37,942 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 02:13:37,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/mainThreadTerminates.c [2022-02-09 02:13:38,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0244f6be/5b8790827954419da910a5fcc3924524/FLAG1bd7b8bd7 [2022-02-09 02:13:38,336 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 02:13:38,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/mainThreadTerminates.c [2022-02-09 02:13:38,336 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-09 02:13:38,337 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-09 02:13:38,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0244f6be/5b8790827954419da910a5fcc3924524/FLAG1bd7b8bd7 [2022-02-09 02:13:38,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0244f6be/5b8790827954419da910a5fcc3924524 [2022-02-09 02:13:38,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 02:13:38,374 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 02:13:38,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 02:13:38,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 02:13:38,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 02:13:38,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228935a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38, skipping insertion in model container [2022-02-09 02:13:38,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 02:13:38,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 02:13:38,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 02:13:38,554 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 02:13:38,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 02:13:38,574 INFO L208 MainTranslator]: Completed translation [2022-02-09 02:13:38,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38 WrapperNode [2022-02-09 02:13:38,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 02:13:38,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 02:13:38,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 02:13:38,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 02:13:38,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,605 INFO L137 Inliner]: procedures = 8, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2022-02-09 02:13:38,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 02:13:38,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 02:13:38,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 02:13:38,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 02:13:38,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 02:13:38,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 02:13:38,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 02:13:38,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 02:13:38,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38" (1/1) ... [2022-02-09 02:13:38,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 02:13:38,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 02:13:38,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 02:13:38,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 02:13:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 02:13:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure worker_thread [2022-02-09 02:13:38,707 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_thread [2022-02-09 02:13:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 02:13:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 02:13:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 02:13:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 02:13:38,709 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 02:13:38,773 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 02:13:38,774 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 02:13:38,862 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 02:13:38,867 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 02:13:38,867 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-09 02:13:38,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:13:38 BoogieIcfgContainer [2022-02-09 02:13:38,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 02:13:38,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 02:13:38,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 02:13:38,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 02:13:38,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 02:13:38" (1/3) ... [2022-02-09 02:13:38,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4410cc02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 02:13:38, skipping insertion in model container [2022-02-09 02:13:38,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 02:13:38" (2/3) ... [2022-02-09 02:13:38,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4410cc02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 02:13:38, skipping insertion in model container [2022-02-09 02:13:38,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:13:38" (3/3) ... [2022-02-09 02:13:38,876 INFO L111 eAbstractionObserver]: Analyzing ICFG mainThreadTerminates.c [2022-02-09 02:13:38,880 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 02:13:38,880 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 02:13:38,880 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 02:13:38,880 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 02:13:38,926 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,926 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,927 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,927 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,927 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,927 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,927 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,928 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,928 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,928 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,928 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,929 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,929 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,930 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,930 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,930 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,930 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,931 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,931 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,931 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,931 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,931 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,932 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,932 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,935 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,935 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,935 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,935 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,935 WARN L322 ript$VariableManager]: TermVariabe |worker_threadThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,935 WARN L322 ript$VariableManager]: TermVariabe worker_threadThread1of1ForFork0_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:13:38,937 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-09 02:13:38,988 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 02:13:38,994 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 02:13:38,995 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-09 02:13:39,004 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 32 transitions, 69 flow [2022-02-09 02:13:39,028 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 77 states, 76 states have (on average 1.855263157894737) internal successors, (141), 76 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:39,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 76 states have (on average 1.855263157894737) internal successors, (141), 76 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:39,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-02-09 02:13:39,035 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:13:39,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:13:39,036 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 02:13:39,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:13:39,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1843131007, now seen corresponding path program 1 times [2022-02-09 02:13:39,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:13:39,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085961508] [2022-02-09 02:13:39,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:13:39,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:13:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:13:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:13:39,233 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:13:39,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085961508] [2022-02-09 02:13:39,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085961508] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:13:39,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:13:39,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 02:13:39,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124233315] [2022-02-09 02:13:39,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:13:39,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 02:13:39,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:13:39,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 02:13:39,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 02:13:39,273 INFO L87 Difference]: Start difference. First operand has 77 states, 76 states have (on average 1.855263157894737) internal successors, (141), 76 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) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:39,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:13:39,295 INFO L93 Difference]: Finished difference Result 77 states and 133 transitions. [2022-02-09 02:13:39,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 02:13:39,299 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-02-09 02:13:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:13:39,307 INFO L225 Difference]: With dead ends: 77 [2022-02-09 02:13:39,308 INFO L226 Difference]: Without dead ends: 77 [2022-02-09 02:13:39,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 02:13:39,315 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 02:13:39,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 02:13:39,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-02-09 02:13:39,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-02-09 02:13:39,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.75) internal successors, (133), 76 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:39,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 133 transitions. [2022-02-09 02:13:39,362 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 133 transitions. Word has length 17 [2022-02-09 02:13:39,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:13:39,362 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 133 transitions. [2022-02-09 02:13:39,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:39,363 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 133 transitions. [2022-02-09 02:13:39,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-02-09 02:13:39,364 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:13:39,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:13:39,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 02:13:39,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 02:13:39,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:13:39,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1843130976, now seen corresponding path program 1 times [2022-02-09 02:13:39,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:13:39,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139096650] [2022-02-09 02:13:39,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:13:39,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:13:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:13:39,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:13:39,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:13:39,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139096650] [2022-02-09 02:13:39,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139096650] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:13:39,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:13:39,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 02:13:39,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005887465] [2022-02-09 02:13:39,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:13:39,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 02:13:39,453 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:13:39,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 02:13:39,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 02:13:39,454 INFO L87 Difference]: Start difference. First operand 77 states and 133 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:39,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:13:39,469 INFO L93 Difference]: Finished difference Result 101 states and 178 transitions. [2022-02-09 02:13:39,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 02:13:39,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-02-09 02:13:39,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:13:39,471 INFO L225 Difference]: With dead ends: 101 [2022-02-09 02:13:39,471 INFO L226 Difference]: Without dead ends: 101 [2022-02-09 02:13:39,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 02:13:39,473 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 9 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 02:13:39,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 02:13:39,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-02-09 02:13:39,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 85. [2022-02-09 02:13:39,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 84 states have (on average 1.7619047619047619) internal successors, (148), 84 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:39,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 148 transitions. [2022-02-09 02:13:39,483 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 148 transitions. Word has length 17 [2022-02-09 02:13:39,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:13:39,483 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 148 transitions. [2022-02-09 02:13:39,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:39,484 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 148 transitions. [2022-02-09 02:13:39,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-09 02:13:39,484 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:13:39,485 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] [2022-02-09 02:13:39,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 02:13:39,485 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 02:13:39,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:13:39,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1575236412, now seen corresponding path program 1 times [2022-02-09 02:13:39,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:13:39,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250830941] [2022-02-09 02:13:39,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:13:39,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:13:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:13:39,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:13:39,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:13:39,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250830941] [2022-02-09 02:13:39,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250830941] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 02:13:39,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607632814] [2022-02-09 02:13:39,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:13:39,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 02:13:39,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 02:13:39,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 02:13:39,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-09 02:13:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:13:39,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 02:13:39,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 02:13:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:13:39,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 02:13:39,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:13:39,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607632814] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 02:13:39,778 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 02:13:39,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-02-09 02:13:39,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734660942] [2022-02-09 02:13:39,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 02:13:39,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 02:13:39,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:13:39,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 02:13:39,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-02-09 02:13:39,780 INFO L87 Difference]: Start difference. First operand 85 states and 148 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:39,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:13:39,859 INFO L93 Difference]: Finished difference Result 149 states and 268 transitions. [2022-02-09 02:13:39,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 02:13:39,862 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-02-09 02:13:39,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:13:39,863 INFO L225 Difference]: With dead ends: 149 [2022-02-09 02:13:39,863 INFO L226 Difference]: Without dead ends: 149 [2022-02-09 02:13:39,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-09 02:13:39,865 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 95 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 02:13:39,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 192 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 02:13:39,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-02-09 02:13:39,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-02-09 02:13:39,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 148 states have (on average 1.8108108108108107) internal successors, (268), 148 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:39,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 268 transitions. [2022-02-09 02:13:39,883 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 268 transitions. Word has length 21 [2022-02-09 02:13:39,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:13:39,883 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 268 transitions. [2022-02-09 02:13:39,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:39,884 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 268 transitions. [2022-02-09 02:13:39,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-02-09 02:13:39,887 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:13:39,887 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:13:39,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-09 02:13:40,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 02:13:40,111 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 02:13:40,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:13:40,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1971303692, now seen corresponding path program 2 times [2022-02-09 02:13:40,111 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:13:40,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750440007] [2022-02-09 02:13:40,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:13:40,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:13:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:13:40,213 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:13:40,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:13:40,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750440007] [2022-02-09 02:13:40,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750440007] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 02:13:40,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120296830] [2022-02-09 02:13:40,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 02:13:40,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 02:13:40,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 02:13:40,217 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 02:13:40,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 02:13:40,268 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 02:13:40,268 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 02:13:40,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-09 02:13:40,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 02:13:40,369 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:13:40,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 02:13:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:13:40,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120296830] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 02:13:40,445 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 02:13:40,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-02-09 02:13:40,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815832329] [2022-02-09 02:13:40,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 02:13:40,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 02:13:40,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:13:40,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 02:13:40,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-02-09 02:13:40,451 INFO L87 Difference]: Start difference. First operand 149 states and 268 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:40,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:13:40,539 INFO L93 Difference]: Finished difference Result 181 states and 328 transitions. [2022-02-09 02:13:40,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 02:13:40,539 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-02-09 02:13:40,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:13:40,541 INFO L225 Difference]: With dead ends: 181 [2022-02-09 02:13:40,541 INFO L226 Difference]: Without dead ends: 181 [2022-02-09 02:13:40,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2022-02-09 02:13:40,542 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 174 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 02:13:40,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 173 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 02:13:40,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-02-09 02:13:40,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2022-02-09 02:13:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.8222222222222222) internal successors, (328), 180 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:40,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 328 transitions. [2022-02-09 02:13:40,560 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 328 transitions. Word has length 29 [2022-02-09 02:13:40,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:13:40,560 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 328 transitions. [2022-02-09 02:13:40,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:13:40,561 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 328 transitions. [2022-02-09 02:13:40,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-02-09 02:13:40,562 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:13:40,562 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:13:40,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-09 02:13:40,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-02-09 02:13:40,784 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting worker_threadErr0ASSERT_VIOLATIONASSERT === [worker_threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, worker_threadErr0ASSERT_VIOLATIONASSERT] === [2022-02-09 02:13:40,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:13:40,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1757553104, now seen corresponding path program 3 times [2022-02-09 02:13:40,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:13:40,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495518968] [2022-02-09 02:13:40,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:13:40,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:13:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 02:13:40,802 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 02:13:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 02:13:40,836 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 02:13:40,837 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 02:13:40,838 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location worker_threadErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-09 02:13:40,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location worker_threadErr0ASSERT_VIOLATIONASSERT (1 of 3 remaining) [2022-02-09 02:13:40,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2022-02-09 02:13:40,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 02:13:40,846 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-02-09 02:13:40,851 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 02:13:40,851 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 02:13:40,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 02:13:40 BasicIcfg [2022-02-09 02:13:40,884 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 02:13:40,885 INFO L158 Benchmark]: Toolchain (without parser) took 2510.86ms. Allocated memory was 182.5MB in the beginning and 262.1MB in the end (delta: 79.7MB). Free memory was 123.7MB in the beginning and 134.4MB in the end (delta: -10.7MB). Peak memory consumption was 68.0MB. Max. memory is 8.0GB. [2022-02-09 02:13:40,885 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 02:13:40,885 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.29ms. Allocated memory was 182.5MB in the beginning and 262.1MB in the end (delta: 79.7MB). Free memory was 123.5MB in the beginning and 234.1MB in the end (delta: -110.6MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2022-02-09 02:13:40,886 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.40ms. Allocated memory is still 262.1MB. Free memory was 234.1MB in the beginning and 232.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 02:13:40,886 INFO L158 Benchmark]: Boogie Preprocessor took 25.79ms. Allocated memory is still 262.1MB. Free memory was 232.5MB in the beginning and 231.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 02:13:40,886 INFO L158 Benchmark]: RCFGBuilder took 234.92ms. Allocated memory is still 262.1MB. Free memory was 231.4MB in the beginning and 221.5MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-09 02:13:40,886 INFO L158 Benchmark]: TraceAbstraction took 2013.62ms. Allocated memory is still 262.1MB. Free memory was 220.9MB in the beginning and 134.4MB in the end (delta: 86.5MB). Peak memory consumption was 86.0MB. Max. memory is 8.0GB. [2022-02-09 02:13:40,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 197.29ms. Allocated memory was 182.5MB in the beginning and 262.1MB in the end (delta: 79.7MB). Free memory was 123.5MB in the beginning and 234.1MB in the end (delta: -110.6MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.40ms. Allocated memory is still 262.1MB. Free memory was 234.1MB in the beginning and 232.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.79ms. Allocated memory is still 262.1MB. Free memory was 232.5MB in the beginning and 231.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 234.92ms. Allocated memory is still 262.1MB. Free memory was 231.4MB in the beginning and 221.5MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 2013.62ms. Allocated memory is still 262.1MB. Free memory was 220.9MB in the beginning and 134.4MB in the end (delta: 86.5MB). Peak memory consumption was 86.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 22]: assertion can be violated assertion can be violated We found a FailurePath: [L26] 0 pthread_t thread; VAL [thread={2:0}] [L27] FCALL, FORK 0 pthread_create(&thread, NULL, worker_thread, NULL) VAL [arg={0:0}, pthread_create(&thread, NULL, worker_thread, NULL)=-1, thread={2:0}] [L18] 1 int x = 0; VAL [arg={0:0}, arg={0:0}, x=0] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=0] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=1] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=1] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=2] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=2] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=3] [L19] COND TRUE 1 x < 4 VAL [arg={0:0}, arg={0:0}, x=3] [L20] 1 x++ VAL [arg={0:0}, arg={0:0}, x=4] [L19] COND FALSE 1 !(x < 4) VAL [arg={0:0}, arg={0:0}, x=4] [L22] 1 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, x=4] - UnprovableResult [Line: 27]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 42 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 446 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 311 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 135 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=4, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 286 SizeOfPredicates, 8 NumberOfNonLiveVariables, 124 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 0/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-09 02:13:40,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...