/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-29 01:28:21,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-29 01:28:21,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-29 01:28:21,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-29 01:28:21,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-29 01:28:21,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-29 01:28:21,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-29 01:28:21,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-29 01:28:21,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-29 01:28:21,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-29 01:28:21,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-29 01:28:21,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-29 01:28:21,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-29 01:28:21,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-29 01:28:21,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-29 01:28:21,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-29 01:28:21,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-29 01:28:21,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-29 01:28:21,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-29 01:28:21,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-29 01:28:21,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-29 01:28:21,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-29 01:28:21,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-29 01:28:21,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-29 01:28:21,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-29 01:28:21,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-29 01:28:21,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-29 01:28:21,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-29 01:28:21,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-29 01:28:21,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-29 01:28:21,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-29 01:28:21,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-29 01:28:21,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-29 01:28:21,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-29 01:28:21,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-29 01:28:21,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-29 01:28:21,863 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2022-01-29 01:28:21,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-29 01:28:21,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-29 01:28:21,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-29 01:28:21,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-29 01:28:21,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-29 01:28:21,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-29 01:28:21,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-29 01:28:21,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-29 01:28:21,896 INFO L138 SettingsManager]: * Use SBE=true [2022-01-29 01:28:21,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-29 01:28:21,897 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-29 01:28:21,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-29 01:28:21,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-29 01:28:21,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-29 01:28:21,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-29 01:28:21,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-29 01:28:21,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-29 01:28:21,898 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-29 01:28:21,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-29 01:28:21,899 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-29 01:28:21,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-29 01:28:21,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-29 01:28:21,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-29 01:28:21,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-29 01:28:21,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-29 01:28:21,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 01:28:21,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-29 01:28:21,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-29 01:28:21,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-29 01:28:21,900 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-29 01:28:21,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-29 01:28:21,900 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-29 01:28:21,900 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-29 01:28:21,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-29 01:28:21,901 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-01-29 01:28:21,901 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-01-29 01:28:21,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-29 01:28:22,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-29 01:28:22,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-29 01:28:22,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-29 01:28:22,133 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-29 01:28:22,134 INFO L275 PluginConnector]: CDTParser initialized [2022-01-29 01:28:22,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c [2022-01-29 01:28:22,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e210ebf1/0b283bb4ea964c66acc021c8c506c812/FLAGca0b75e43 [2022-01-29 01:28:22,607 INFO L306 CDTParser]: Found 1 translation units. [2022-01-29 01:28:22,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/05-end-no-begin.c [2022-01-29 01:28:22,609 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-01-29 01:28:22,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e210ebf1/0b283bb4ea964c66acc021c8c506c812/FLAGca0b75e43 [2022-01-29 01:28:22,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e210ebf1/0b283bb4ea964c66acc021c8c506c812 [2022-01-29 01:28:22,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-29 01:28:22,661 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-29 01:28:22,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-29 01:28:22,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-29 01:28:22,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-29 01:28:22,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e3b48cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22, skipping insertion in model container [2022-01-29 01:28:22,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-29 01:28:22,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-29 01:28:22,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-29 01:28:22,870 INFO L203 MainTranslator]: Completed pre-run [2022-01-29 01:28:22,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2022-01-29 01:28:22,888 INFO L208 MainTranslator]: Completed translation [2022-01-29 01:28:22,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22 WrapperNode [2022-01-29 01:28:22,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-29 01:28:22,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-29 01:28:22,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-29 01:28:22,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-29 01:28:22,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,915 INFO L137 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-01-29 01:28:22,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-29 01:28:22,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-29 01:28:22,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-29 01:28:22,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-29 01:28:22,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-29 01:28:22,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-29 01:28:22,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-29 01:28:22,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-29 01:28:22,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22" (1/1) ... [2022-01-29 01:28:22,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 01:28:22,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 01:28:22,966 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) [2022-01-29 01:28:22,976 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 [2022-01-29 01:28:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-29 01:28:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-29 01:28:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-01-29 01:28:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-01-29 01:28:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-29 01:28:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-29 01:28:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-29 01:28:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-29 01:28:22,998 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-29 01:28:23,051 INFO L234 CfgBuilder]: Building ICFG [2022-01-29 01:28:23,053 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-29 01:28:23,132 INFO L275 CfgBuilder]: Performing block encoding [2022-01-29 01:28:23,137 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-29 01:28:23,137 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-29 01:28:23,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 01:28:23 BoogieIcfgContainer [2022-01-29 01:28:23,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-29 01:28:23,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-29 01:28:23,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-29 01:28:23,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-29 01:28:23,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 01:28:22" (1/3) ... [2022-01-29 01:28:23,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ddaa52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 01:28:23, skipping insertion in model container [2022-01-29 01:28:23,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 01:28:22" (2/3) ... [2022-01-29 01:28:23,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ddaa52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 01:28:23, skipping insertion in model container [2022-01-29 01:28:23,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 01:28:23" (3/3) ... [2022-01-29 01:28:23,146 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-end-no-begin.c [2022-01-29 01:28:23,150 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-29 01:28:23,150 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-29 01:28:23,150 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-29 01:28:23,150 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-29 01:28:23,167 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,167 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,167 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,167 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,168 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,168 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,168 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,168 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,169 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,169 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,169 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,169 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,171 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,171 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,172 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,172 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-29 01:28:23,174 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-29 01:28:23,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 01:28:23,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 01:28:23,213 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) [2022-01-29 01:28:23,247 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 [2022-01-29 01:28:23,285 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-01-29 01:28:23,291 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, 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 [2022-01-29 01:28:23,291 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-29 01:28:23,425 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-29 01:28:23,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 01:28:23,430 INFO L85 PathProgramCache]: Analyzing trace with hash -2094865671, now seen corresponding path program 1 times [2022-01-29 01:28:23,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 01:28:23,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506429030] [2022-01-29 01:28:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 01:28:23,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 01:28:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 01:28:23,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 01:28:23,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 01:28:23,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506429030] [2022-01-29 01:28:23,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506429030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 01:28:23,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 01:28:23,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 01:28:23,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780290316] [2022-01-29 01:28:23,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 01:28:23,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-29 01:28:23,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 01:28:23,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-29 01:28:23,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-29 01:28:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 01:28:23,677 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 01:28:23,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 01:28:23,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 01:28:23,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-29 01:28:23,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-29 01:28:23,731 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-29 01:28:23,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 01:28:23,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1174145594, now seen corresponding path program 1 times [2022-01-29 01:28:23,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 01:28:23,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696632357] [2022-01-29 01:28:23,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 01:28:23,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 01:28:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 01:28:23,752 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-29 01:28:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-29 01:28:23,775 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-29 01:28:23,775 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-29 01:28:23,776 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-01-29 01:28:23,778 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-01-29 01:28:23,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-29 01:28:23,789 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-29 01:28:23,792 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-29 01:28:23,792 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-29 01:28:23,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 01:28:23 BasicIcfg [2022-01-29 01:28:23,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-29 01:28:23,816 INFO L158 Benchmark]: Toolchain (without parser) took 1155.39ms. Allocated memory was 195.0MB in the beginning and 273.7MB in the end (delta: 78.6MB). Free memory was 138.3MB in the beginning and 201.7MB in the end (delta: -63.4MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. [2022-01-29 01:28:23,817 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 195.0MB. Free memory is still 156.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 01:28:23,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.58ms. Allocated memory was 195.0MB in the beginning and 273.7MB in the end (delta: 78.6MB). Free memory was 138.1MB in the beginning and 246.2MB in the end (delta: -108.1MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. [2022-01-29 01:28:23,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.48ms. Allocated memory is still 273.7MB. Free memory was 246.2MB in the beginning and 244.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 01:28:23,818 INFO L158 Benchmark]: Boogie Preprocessor took 20.78ms. Allocated memory is still 273.7MB. Free memory was 244.7MB in the beginning and 244.1MB in the end (delta: 676.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 01:28:23,818 INFO L158 Benchmark]: RCFGBuilder took 199.18ms. Allocated memory is still 273.7MB. Free memory was 243.7MB in the beginning and 233.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-01-29 01:28:23,819 INFO L158 Benchmark]: TraceAbstraction took 674.90ms. Allocated memory is still 273.7MB. Free memory was 232.7MB in the beginning and 201.7MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2022-01-29 01:28:23,822 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 195.0MB. Free memory is still 156.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 225.58ms. Allocated memory was 195.0MB in the beginning and 273.7MB in the end (delta: 78.6MB). Free memory was 138.1MB in the beginning and 246.2MB in the end (delta: -108.1MB). Peak memory consumption was 8.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.48ms. Allocated memory is still 273.7MB. Free memory was 246.2MB in the beginning and 244.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.78ms. Allocated memory is still 273.7MB. Free memory was 244.7MB in the beginning and 244.1MB in the end (delta: 676.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 199.18ms. Allocated memory is still 273.7MB. Free memory was 243.7MB in the beginning and 233.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 674.90ms. Allocated memory is still 273.7MB. Free memory was 232.7MB in the beginning and 201.7MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 60, positive: 54, positive conditional: 16, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, positive: 54, positive conditional: 16, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 60, positive: 54, positive conditional: 16, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 61, positive: 54, positive conditional: 10, positive unconditional: 44, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 61, positive: 54, positive conditional: 7, positive unconditional: 47, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 54, positive conditional: 7, positive unconditional: 47, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 45, positive: 39, positive conditional: 1, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 45, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 77, positive: 6, positive conditional: 3, positive unconditional: 3, negative: 71, negative conditional: 3, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 61, positive: 15, positive conditional: 6, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 45, unknown conditional: 2, unknown unconditional: 43] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 3, Maximal queried relation: 1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 23, Number of trivial persistent sets: 19, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 43, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 60, positive: 54, positive conditional: 16, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, positive: 54, positive conditional: 16, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 60, positive: 54, positive conditional: 16, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 61, positive: 54, positive conditional: 10, positive unconditional: 44, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 61, positive: 54, positive conditional: 7, positive unconditional: 47, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 54, positive conditional: 7, positive unconditional: 47, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 45, positive: 39, positive conditional: 1, positive unconditional: 38, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 45, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 77, positive: 6, positive conditional: 3, positive unconditional: 3, negative: 71, negative conditional: 3, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 61, positive: 15, positive conditional: 6, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 45, unknown conditional: 2, unknown unconditional: 43] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 39, Positive conditional cache size: 1, Positive unconditional cache size: 38, Negative cache size: 6, Negative conditional cache size: 1, Negative unconditional cache size: 5, Eliminated conditions: 3, 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: [L15] 0 int x = 0; VAL [x=0] [L23] 0 pthread_t threadId; VAL [threadId={2:0}, x=0] [L24] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, pthread_create(&threadId, NULL, &foo, NULL)=-1, threadId={2:0}, x=0] [L26] 0 x = 1 VAL [arg={0:0}, threadId={2:0}, x=1] [L18] 1 x = 2 VAL [arg={0:0}, arg={0:0}, x=2] [L27] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=3] [L30] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=3] - 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 37 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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! [2022-01-29 01:28:23,863 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 [2022-01-29 01:28:24,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...