/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-After.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 11:41:38,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 11:41:38,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 11:41:38,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 11:41:38,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 11:41:38,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 11:41:38,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 11:41:38,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 11:41:38,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 11:41:38,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 11:41:38,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 11:41:38,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 11:41:38,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 11:41:38,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 11:41:38,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 11:41:38,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 11:41:38,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 11:41:38,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 11:41:38,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 11:41:38,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 11:41:38,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 11:41:38,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 11:41:38,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 11:41:38,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 11:41:38,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 11:41:38,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 11:41:38,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 11:41:38,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 11:41:38,313 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-After.epf [2022-01-19 11:41:38,335 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 11:41:38,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 11:41:38,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 11:41:38,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 11:41:38,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 11:41:38,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 11:41:38,337 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 11:41:38,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 11:41:38,337 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 11:41:38,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 11:41:38,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 11:41:38,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 11:41:38,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 11:41:38,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 11:41:38,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 11:41:38,338 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 11:41:38,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 11:41:38,338 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 11:41:38,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 11:41:38,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 11:41:38,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 11:41:38,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 11:41:38,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 11:41:38,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:41:38,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 11:41:38,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 11:41:38,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 11:41:38,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 11:41:38,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 11:41:38,340 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 11:41:38,340 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 11:41:38,340 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 11:41:38,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 11:41:38,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 11:41:38,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 11:41:38,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 11:41:38,546 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 11:41:38,547 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 11:41:38,547 INFO L432 ainManager$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 11:41:38,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06220d196/919d17d36c9843f0869a2d3ac0b076f1/FLAG536253a97 [2022-01-19 11:41:39,016 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 11:41:39,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-01-19 11:41:39,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06220d196/919d17d36c9843f0869a2d3ac0b076f1/FLAG536253a97 [2022-01-19 11:41:39,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06220d196/919d17d36c9843f0869a2d3ac0b076f1 [2022-01-19 11:41:39,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 11:41:39,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 11:41:39,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 11:41:39,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 11:41:39,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 11:41:39,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc5d9d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39, skipping insertion in model container [2022-01-19 11:41:39,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 11:41:39,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 11:41:39,207 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-19 11:41:39,293 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 11:41:39,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:41:39,309 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 11:41:39,319 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-19 11:41:39,338 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 11:41:39,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:41:39,383 INFO L208 MainTranslator]: Completed translation [2022-01-19 11:41:39,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39 WrapperNode [2022-01-19 11:41:39,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 11:41:39,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 11:41:39,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 11:41:39,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 11:41:39,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,422 INFO L137 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-01-19 11:41:39,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 11:41:39,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 11:41:39,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 11:41:39,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 11:41:39,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 11:41:39,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 11:41:39,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 11:41:39,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 11:41:39,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39" (1/1) ... [2022-01-19 11:41:39,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:41:39,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 11:41:39,463 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 11:41:39,472 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 11:41:39,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 11:41:39,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 11:41:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-01-19 11:41:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 11:41:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 11:41:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 11:41:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 11:41:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-01-19 11:41:39,498 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-01-19 11:41:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 11:41:39,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 11:41:39,499 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 11:41:39,577 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 11:41:39,578 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 11:41:39,667 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 11:41:39,682 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 11:41:39,682 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-19 11:41:39,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:41:39 BoogieIcfgContainer [2022-01-19 11:41:39,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 11:41:39,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 11:41:39,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 11:41:39,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 11:41:39,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 11:41:39" (1/3) ... [2022-01-19 11:41:39,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be50ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:41:39, skipping insertion in model container [2022-01-19 11:41:39,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:41:39" (2/3) ... [2022-01-19 11:41:39,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be50ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:41:39, skipping insertion in model container [2022-01-19 11:41:39,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:41:39" (3/3) ... [2022-01-19 11:41:39,688 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-01-19 11:41:39,691 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 11:41:39,691 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 11:41:39,691 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 11:41:39,710 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,710 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,710 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,710 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,710 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,711 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,711 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,711 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,711 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,711 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,711 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,712 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,712 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,712 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,712 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,712 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,713 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,713 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,713 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,713 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,715 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,715 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,715 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,715 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,715 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,716 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:41:39,718 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-01-19 11:41:39,744 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 11:41:39,748 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 11:41:39,748 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 11:41:39,785 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 156 flow [2022-01-19 11:41:39,826 INFO L129 PetriNetUnfolder]: 3/73 cut-off events. [2022-01-19 11:41:39,826 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 11:41:39,831 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 11:41:39,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 156 flow [2022-01-19 11:41:39,837 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 66 transitions, 135 flow [2022-01-19 11:41:39,858 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2022-01-19 11:41:39,858 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:41:39,859 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:41:39,859 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 11:41:39,859 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 11:41:39,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:41:39,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1033982442, now seen corresponding path program 1 times [2022-01-19 11:41:39,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:41:39,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401407499] [2022-01-19 11:41:39,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:41:39,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:41:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 11:41:40,000 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 11:41:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 11:41:40,094 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 11:41:40,097 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 11:41:40,098 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 11:41:40,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-19 11:41:40,100 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-19 11:41:40,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 11:41:40,103 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 11:41:40,107 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 11:41:40,107 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 11:41:40,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 11:41:40 BasicIcfg [2022-01-19 11:41:40,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 11:41:40,134 INFO L158 Benchmark]: Toolchain (without parser) took 1092.35ms. Allocated memory is still 333.4MB. Free memory was 279.0MB in the beginning and 251.6MB in the end (delta: 27.4MB). Peak memory consumption was 28.5MB. Max. memory is 16.0GB. [2022-01-19 11:41:40,134 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 333.4MB. Free memory is still 296.5MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 11:41:40,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.59ms. Allocated memory is still 333.4MB. Free memory was 278.9MB in the beginning and 295.7MB in the end (delta: -16.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.0GB. [2022-01-19 11:41:40,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.75ms. Allocated memory is still 333.4MB. Free memory was 295.7MB in the beginning and 293.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:41:40,135 INFO L158 Benchmark]: Boogie Preprocessor took 14.33ms. Allocated memory is still 333.4MB. Free memory was 293.6MB in the beginning and 292.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:41:40,136 INFO L158 Benchmark]: RCFGBuilder took 245.96ms. Allocated memory is still 333.4MB. Free memory was 292.5MB in the beginning and 279.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2022-01-19 11:41:40,136 INFO L158 Benchmark]: TraceAbstraction took 448.97ms. Allocated memory is still 333.4MB. Free memory was 278.9MB in the beginning and 251.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2022-01-19 11:41:40,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 333.4MB. Free memory is still 296.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 340.59ms. Allocated memory is still 333.4MB. Free memory was 278.9MB in the beginning and 295.7MB in the end (delta: -16.8MB). Peak memory consumption was 18.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.75ms. Allocated memory is still 333.4MB. Free memory was 295.7MB in the beginning and 293.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 14.33ms. Allocated memory is still 333.4MB. Free memory was 293.6MB in the beginning and 292.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 245.96ms. Allocated memory is still 333.4MB. Free memory was 292.5MB in the beginning and 279.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 448.97ms. Allocated memory is still 333.4MB. Free memory was 278.9MB in the beginning and 251.6MB 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, 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 11:41:40,172 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...