/usr/bin/java -Xmx16000000000 -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-PN-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 05:23:44,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 05:23:44,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 05:23:44,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 05:23:44,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 05:23:44,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 05:23:44,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 05:23:44,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 05:23:44,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 05:23:44,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 05:23:44,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 05:23:44,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 05:23:44,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 05:23:44,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 05:23:44,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 05:23:44,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 05:23:44,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 05:23:44,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 05:23:44,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 05:23:44,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 05:23:44,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 05:23:44,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 05:23:44,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 05:23:44,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 05:23:44,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 05:23:44,522 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 05:23:44,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 05:23:44,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 05:23:44,529 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-PN-NoLbe-Before.epf [2022-01-19 05:23:44,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 05:23:44,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 05:23:44,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 05:23:44,552 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 05:23:44,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 05:23:44,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 05:23:44,553 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 05:23:44,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 05:23:44,553 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 05:23:44,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 05:23:44,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 05:23:44,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 05:23:44,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 05:23:44,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 05:23:44,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 05:23:44,555 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 05:23:44,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 05:23:44,555 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 05:23:44,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 05:23:44,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 05:23:44,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 05:23:44,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 05:23:44,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 05:23:44,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:23:44,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 05:23:44,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 05:23:44,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 05:23:44,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 05:23:44,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 05:23:44,556 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 05:23:44,557 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 05:23:44,557 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 05:23:44,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 05:23:44,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 05:23:44,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 05:23:44,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 05:23:44,747 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 05:23:44,748 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 05:23:44,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-01-19 05:23:44,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c6a48c1a/a13817f53b354a8697eb592cabd62f50/FLAGae3e2b465 [2022-01-19 05:23:45,168 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 05:23:45,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-01-19 05:23:45,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c6a48c1a/a13817f53b354a8697eb592cabd62f50/FLAGae3e2b465 [2022-01-19 05:23:45,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c6a48c1a/a13817f53b354a8697eb592cabd62f50 [2022-01-19 05:23:45,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 05:23:45,189 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 05:23:45,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 05:23:45,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 05:23:45,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 05:23:45,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82a5236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45, skipping insertion in model container [2022-01-19 05:23:45,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 05:23:45,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 05:23:45,341 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-19 05:23:45,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-01-19 05:23:45,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:23:45,446 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 05:23:45,464 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-19 05:23:45,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i[30416,30429] [2022-01-19 05:23:45,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 05:23:45,510 INFO L208 MainTranslator]: Completed translation [2022-01-19 05:23:45,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45 WrapperNode [2022-01-19 05:23:45,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 05:23:45,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 05:23:45,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 05:23:45,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 05:23:45,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,548 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-01-19 05:23:45,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 05:23:45,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 05:23:45,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 05:23:45,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 05:23:45,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 05:23:45,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 05:23:45,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 05:23:45,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 05:23:45,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45" (1/1) ... [2022-01-19 05:23:45,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 05:23:45,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 05:23:45,613 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) [2022-01-19 05:23:45,627 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 [2022-01-19 05:23:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 05:23:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 05:23:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 05:23:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 05:23:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 05:23:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 05:23:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 05:23:45,640 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-01-19 05:23:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-01-19 05:23:45,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 05:23:45,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 05:23:45,642 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 05:23:45,748 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 05:23:45,749 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 05:23:45,864 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 05:23:45,868 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 05:23:45,868 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-19 05:23:45,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:23:45 BoogieIcfgContainer [2022-01-19 05:23:45,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 05:23:45,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 05:23:45,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 05:23:45,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 05:23:45,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 05:23:45" (1/3) ... [2022-01-19 05:23:45,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0adfd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:23:45, skipping insertion in model container [2022-01-19 05:23:45,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 05:23:45" (2/3) ... [2022-01-19 05:23:45,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0adfd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 05:23:45, skipping insertion in model container [2022-01-19 05:23:45,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 05:23:45" (3/3) ... [2022-01-19 05:23:45,874 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-01-19 05:23:45,878 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 05:23:45,878 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 05:23:45,878 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 05:23:45,894 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,895 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,895 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,895 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,895 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,895 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,895 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,895 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,896 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,896 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,896 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,896 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,896 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,896 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,897 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,897 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,897 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,897 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,897 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,897 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,899 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,900 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,900 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,900 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,900 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,900 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 05:23:45,902 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-19 05:23:45,933 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 05:23:45,939 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=false, mAutomataTypeConcurrency=PETRI_NET, 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 [2022-01-19 05:23:45,939 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 05:23:45,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 156 flow [2022-01-19 05:23:45,969 INFO L129 PetriNetUnfolder]: 3/73 cut-off events. [2022-01-19 05:23:45,969 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 05:23:45,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 3/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2022-01-19 05:23:45,971 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 156 flow [2022-01-19 05:23:45,974 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 66 transitions, 135 flow [2022-01-19 05:23:45,988 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2022-01-19 05:23:45,988 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 05:23:45,988 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 05:23:45,989 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 05:23:45,989 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 05:23:45,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 05:23:45,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1033982442, now seen corresponding path program 1 times [2022-01-19 05:23:45,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 05:23:45,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022289225] [2022-01-19 05:23:45,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 05:23:45,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 05:23:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:23:46,137 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 05:23:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 05:23:46,192 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 05:23:46,193 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 05:23:46,194 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 05:23:46,195 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-19 05:23:46,196 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-19 05:23:46,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 05:23:46,200 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 05:23:46,203 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 05:23:46,203 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 05:23:46,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 05:23:46 BasicIcfg [2022-01-19 05:23:46,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 05:23:46,249 INFO L158 Benchmark]: Toolchain (without parser) took 1059.78ms. Allocated memory was 398.5MB in the beginning and 484.4MB in the end (delta: 86.0MB). Free memory was 344.1MB in the beginning and 402.6MB in the end (delta: -58.6MB). Peak memory consumption was 25.3MB. Max. memory is 16.0GB. [2022-01-19 05:23:46,249 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 398.5MB. Free memory is still 361.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 05:23:46,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.58ms. Allocated memory was 398.5MB in the beginning and 484.4MB in the end (delta: 86.0MB). Free memory was 343.9MB in the beginning and 448.8MB in the end (delta: -104.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.0GB. [2022-01-19 05:23:46,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.35ms. Allocated memory is still 484.4MB. Free memory was 448.8MB in the beginning and 446.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 05:23:46,251 INFO L158 Benchmark]: Boogie Preprocessor took 27.77ms. Allocated memory is still 484.4MB. Free memory was 446.7MB in the beginning and 445.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 05:23:46,251 INFO L158 Benchmark]: RCFGBuilder took 291.55ms. Allocated memory is still 484.4MB. Free memory was 445.6MB in the beginning and 430.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2022-01-19 05:23:46,251 INFO L158 Benchmark]: TraceAbstraction took 378.11ms. Allocated memory is still 484.4MB. Free memory was 429.9MB in the beginning and 402.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2022-01-19 05:23:46,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 398.5MB. Free memory is still 361.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 320.58ms. Allocated memory was 398.5MB in the beginning and 484.4MB in the end (delta: 86.0MB). Free memory was 343.9MB in the beginning and 448.8MB in the end (delta: -104.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.35ms. Allocated memory is still 484.4MB. Free memory was 448.8MB in the beginning and 446.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 27.77ms. Allocated memory is still 484.4MB. Free memory was 446.7MB in the beginning and 445.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 291.55ms. Allocated memory is still 484.4MB. Free memory was 445.6MB in the beginning and 430.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 378.11ms. Allocated memory is still 484.4MB. Free memory was 429.9MB in the beginning and 402.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] - UnprovableResult [Line: 712]: 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, 86 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=0, InterpolantAutomatonStates: 0, 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, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-01-19 05:23:46,282 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...