/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-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 03:04:38,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 03:04:38,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 03:04:38,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-20 03:04:38,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 03:04:38,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 03:04:38,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 03:04:38,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 03:04:38,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 03:04:38,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 03:04:38,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 03:04:38,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 03:04:38,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 03:04:38,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 03:04:38,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 03:04:38,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 03:04:38,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 03:04:38,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 03:04:38,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 03:04:38,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 03:04:38,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 03:04:38,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 03:04:38,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 03:04:38,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 03:04:38,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 03:04:38,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 03:04:38,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 03:04:38,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 03:04:38,891 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-MCRwithDepranks-Lazy.epf [2022-02-20 03:04:38,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 03:04:38,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 03:04:38,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 03:04:38,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 03:04:38,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 03:04:38,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 03:04:38,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 03:04:38,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 03:04:38,909 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 03:04:38,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 03:04:38,909 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 03:04:38,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 03:04:38,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 03:04:38,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 03:04:38,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 03:04:38,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 03:04:38,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 03:04:38,910 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 03:04:38,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 03:04:38,910 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 03:04:38,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 03:04:38,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 03:04:38,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 03:04:38,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 03:04:38,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 03:04:38,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:04:38,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 03:04:38,911 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 03:04:38,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 03:04:38,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 03:04:38,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 03:04:38,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 03:04:38,911 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 03:04:38,911 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 03:04:38,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 03:04:38,912 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 03:04:38,912 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 03:04:39,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 03:04:39,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 03:04:39,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 03:04:39,096 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 03:04:39,097 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 03:04:39,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2022-02-20 03:04:39,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af8835f49/92a0f49a1b43482d981bdf43180f20cd/FLAG771d0bb50 [2022-02-20 03:04:39,504 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 03:04:39,505 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/forkJoinInLoop.c [2022-02-20 03:04:39,505 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-20 03:04:39,506 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2022-02-20 03:04:39,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af8835f49/92a0f49a1b43482d981bdf43180f20cd/FLAG771d0bb50 [2022-02-20 03:04:39,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af8835f49/92a0f49a1b43482d981bdf43180f20cd [2022-02-20 03:04:39,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 03:04:39,542 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-20 03:04:39,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 03:04:39,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 03:04:39,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 03:04:39,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ccbf860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39, skipping insertion in model container [2022-02-20 03:04:39,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 03:04:39,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 03:04:39,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 03:04:39,705 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 03:04:39,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 03:04:39,721 INFO L208 MainTranslator]: Completed translation [2022-02-20 03:04:39,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39 WrapperNode [2022-02-20 03:04:39,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 03:04:39,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 03:04:39,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 03:04:39,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 03:04:39,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,747 INFO L137 Inliner]: procedures = 10, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2022-02-20 03:04:39,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 03:04:39,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 03:04:39,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 03:04:39,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 03:04:39,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 03:04:39,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 03:04:39,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 03:04:39,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 03:04:39,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39" (1/1) ... [2022-02-20 03:04:39,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:04:39,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:04:39,806 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) [2022-02-20 03:04:39,808 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 [2022-02-20 03:04:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 03:04:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 03:04:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-02-20 03:04:39,833 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-02-20 03:04:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 03:04:39,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 03:04:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 03:04:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 03:04:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 03:04:39,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 03:04:39,834 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 03:04:39,899 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 03:04:39,900 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 03:04:40,054 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 03:04:40,059 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 03:04:40,059 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 03:04:40,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:04:40 BoogieIcfgContainer [2022-02-20 03:04:40,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 03:04:40,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 03:04:40,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 03:04:40,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 03:04:40,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 03:04:39" (1/3) ... [2022-02-20 03:04:40,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc84550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:04:40, skipping insertion in model container [2022-02-20 03:04:40,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 03:04:39" (2/3) ... [2022-02-20 03:04:40,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dc84550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:04:40, skipping insertion in model container [2022-02-20 03:04:40,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:04:40" (3/3) ... [2022-02-20 03:04:40,089 INFO L111 eAbstractionObserver]: Analyzing ICFG forkJoinInLoop.c [2022-02-20 03:04:40,092 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 03:04:40,092 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 03:04:40,092 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 03:04:40,092 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 03:04:40,123 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,123 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,123 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,123 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,128 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,128 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~i.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,129 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,132 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,133 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,133 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,135 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,136 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~y~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,145 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,145 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,145 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~i.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 03:04:40,157 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-20 03:04:40,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 03:04:40,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:04:40,213 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-20 03:04:40,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-20 03:04:40,265 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 03:04:40,269 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 03:04:40,269 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-20 03:04:40,294 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 16 transitions and produced 17 states. [2022-02-20 03:04:40,296 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-20 03:04:40,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:04:40,299 INFO L85 PathProgramCache]: Analyzing trace with hash -687358722, now seen corresponding path program 1 times [2022-02-20 03:04:40,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:04:40,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66583934] [2022-02-20 03:04:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:04:40,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:04:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:04:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:04:40,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:04:40,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66583934] [2022-02-20 03:04:40,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66583934] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:04:40,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 03:04:40,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 03:04:40,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601305814] [2022-02-20 03:04:40,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:04:40,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 03:04:40,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:04:40,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 03:04:40,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 03:04:40,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:04:40,411 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:04:40,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:04:40,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:04:40,417 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 19 transitions and produced 20 states. [2022-02-20 03:04:40,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:04:40,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 03:04:40,418 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-20 03:04:40,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:04:40,419 INFO L85 PathProgramCache]: Analyzing trace with hash 873243086, now seen corresponding path program 1 times [2022-02-20 03:04:40,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:04:40,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788326085] [2022-02-20 03:04:40,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:04:40,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:04:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:04:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:04:40,464 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:04:40,464 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788326085] [2022-02-20 03:04:40,464 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788326085] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:04:40,464 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 03:04:40,464 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-20 03:04:40,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841204838] [2022-02-20 03:04:40,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:04:40,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 03:04:40,465 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:04:40,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 03:04:40,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 03:04:40,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:04:40,466 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:04:40,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-02-20 03:04:40,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:04:40,466 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:04:40,527 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 53 transitions and produced 54 states. [2022-02-20 03:04:40,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:04:40,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:04:40,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 03:04:40,528 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-20 03:04:40,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:04:40,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1896857757, now seen corresponding path program 1 times [2022-02-20 03:04:40,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:04:40,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945680188] [2022-02-20 03:04:40,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:04:40,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:04:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:04:40,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:04:40,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:04:40,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945680188] [2022-02-20 03:04:40,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945680188] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:04:40,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20010200] [2022-02-20 03:04:40,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:04:40,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:04:40,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:04:40,743 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) [2022-02-20 03:04:40,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 03:04:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:04:40,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-20 03:04:40,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:04:40,846 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-02-20 03:04:40,862 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-02-20 03:04:40,862 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-02-20 03:04:40,923 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-02-20 03:04:41,030 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-02-20 03:04:41,042 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-02-20 03:04:41,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:04:41,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:04:41,119 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_26 (Array Int Int))) (<= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#thread_id~0#1.base| v_ArrVal_26) |c_ULTIMATE.start_main_~#x~0#1.base|) |c_ULTIMATE.start_main_~#x~0#1.offset|) 1)) is different from false [2022-02-20 03:04:41,141 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2022-02-20 03:04:41,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-02-20 03:04:41,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20010200] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:04:41,164 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:04:41,164 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2022-02-20 03:04:41,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079027524] [2022-02-20 03:04:41,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:04:41,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-20 03:04:41,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:04:41,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-20 03:04:41,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=222, Unknown=1, NotChecked=30, Total=306 [2022-02-20 03:04:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:04:41,166 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:04:41,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 03:04:41,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:04:41,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:04:41,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:04:41,363 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 87 transitions and produced 88 states. [2022-02-20 03:04:41,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:04:41,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 03:04:41,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-20 03:04:41,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 03:04:41,577 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,SelfDestructingSolverStorable2 [2022-02-20 03:04:41,578 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-20 03:04:41,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:04:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1468554424, now seen corresponding path program 2 times [2022-02-20 03:04:41,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:04:41,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433636022] [2022-02-20 03:04:41,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:04:41,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:04:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 03:04:41,618 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 03:04:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 03:04:41,665 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 03:04:41,665 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 03:04:41,666 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-02-20 03:04:41,667 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-02-20 03:04:41,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-20 03:04:41,671 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-02-20 03:04:41,674 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 03:04:41,674 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 03:04:41,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 03:04:41 BasicIcfg [2022-02-20 03:04:41,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 03:04:41,726 INFO L158 Benchmark]: Toolchain (without parser) took 2183.93ms. Allocated memory was 195.0MB in the beginning and 242.2MB in the end (delta: 47.2MB). Free memory was 136.7MB in the beginning and 162.1MB in the end (delta: -25.4MB). Peak memory consumption was 21.1MB. Max. memory is 8.0GB. [2022-02-20 03:04:41,726 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 195.0MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 03:04:41,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.52ms. Allocated memory was 195.0MB in the beginning and 242.2MB in the end (delta: 47.2MB). Free memory was 136.5MB in the beginning and 210.3MB in the end (delta: -73.9MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. [2022-02-20 03:04:41,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.43ms. Allocated memory is still 242.2MB. Free memory was 210.3MB in the beginning and 208.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 03:04:41,727 INFO L158 Benchmark]: Boogie Preprocessor took 18.45ms. Allocated memory is still 242.2MB. Free memory was 208.8MB in the beginning and 207.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 03:04:41,728 INFO L158 Benchmark]: RCFGBuilder took 306.07ms. Allocated memory is still 242.2MB. Free memory was 207.7MB in the beginning and 197.3MB in the end (delta: 10.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-20 03:04:41,728 INFO L158 Benchmark]: TraceAbstraction took 1651.19ms. Allocated memory is still 242.2MB. Free memory was 196.7MB in the beginning and 162.1MB in the end (delta: 34.6MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. [2022-02-20 03:04:41,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 195.0MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 178.52ms. Allocated memory was 195.0MB in the beginning and 242.2MB in the end (delta: 47.2MB). Free memory was 136.5MB in the beginning and 210.3MB in the end (delta: -73.9MB). Peak memory consumption was 7.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.43ms. Allocated memory is still 242.2MB. Free memory was 210.3MB in the beginning and 208.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.45ms. Allocated memory is still 242.2MB. Free memory was 208.8MB in the beginning and 207.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 306.07ms. Allocated memory is still 242.2MB. Free memory was 207.7MB in the beginning and 197.3MB in the end (delta: 10.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1651.19ms. Allocated memory is still 242.2MB. Free memory was 196.7MB in the beginning and 162.1MB in the end (delta: 34.6MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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: 30]: assertion can be violated assertion can be violated We found a FailurePath: [L19] 0 pthread_t thread_id; VAL [thread_id={6:0}] [L21] 0 int x = 1; VAL [thread_id={6:0}, x={5:0}] [L23] EXPR 0 \read(x) VAL [\read(x)=1, thread_id={6:0}, x={5:0}] [L23] COND TRUE 0 x < 3 VAL [\read(x)=1, thread_id={6:0}, x={5:0}] [L24] FCALL, FORK 0 pthread_create(&thread_id, NULL, foo, &x) VAL [i={5:0}, pthread_create(&thread_id, NULL, foo, &x)=-2, thread_id={6:0}, x={5:0}] [L25] 0 \read(x) VAL [i={5:0}, thread_id={6:0}, x={5:0}] [L26] 0 \read(thread_id) VAL [\read(thread_id)=-2, i={5:0}, thread_id={6:0}, x={5:0}] [L15] 1 int y = 4; VAL [i={5:0}, i={5:0}, y=4] [L26] FCALL, JOIN 1 pthread_join(thread_id, NULL) VAL [\read(thread_id)=-2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L27] 0 \read(x) VAL [i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L28] EXPR 0 \read(x) VAL [\read(x)=1, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L28] 0 x++ VAL [\read(x)=1, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, x++=1, y=4] [L23] EXPR 0 \read(x) VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L23] COND TRUE 0 x < 3 VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L24] FCALL, FORK 0 pthread_create(&thread_id, NULL, foo, &x) VAL [i={5:0}, pthread_create(&thread_id, NULL, foo, &x)=-1, thread_id={6:0}, x={5:0}] [L25] 0 \read(x) VAL [i={5:0}, thread_id={6:0}, x={5:0}] [L26] 0 \read(thread_id) VAL [\read(thread_id)=-1, i={5:0}, thread_id={6:0}, x={5:0}] [L15] 1 int y = 4; VAL [i={5:0}, i={5:0}, y=4] [L26] FCALL, JOIN 1 pthread_join(thread_id, NULL) VAL [\read(thread_id)=-1, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L27] 0 \read(x) VAL [i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L28] EXPR 0 \read(x) VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L28] 0 x++ VAL [\read(x)=2, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, x++=2, y=4] [L23] EXPR 0 \read(x) VAL [\read(x)=3, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L23] COND FALSE 0 !(x < 3) VAL [\read(x)=3, i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] [L30] 0 CodeAnnotStmt[Assertion] VAL [i={5:0}, i={5:0}, thread_id={6:0}, x={5:0}, y=4] - UnprovableResult [Line: 24]: 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, 57 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 156 ConstructedInterpolants, 6 QuantifiedInterpolants, 799 SizeOfPredicates, 8 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 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! [2022-02-20 03:04:41,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-20 03:04:41,970 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...