/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadMutex02-unsafe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 04:25:31,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 04:25:31,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 04:25:31,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 04:25:31,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 04:25:31,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 04:25:31,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 04:25:31,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 04:25:31,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 04:25:31,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 04:25:31,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 04:25:31,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 04:25:31,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 04:25:31,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 04:25:31,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 04:25:31,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 04:25:31,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 04:25:31,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 04:25:31,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 04:25:31,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 04:25:31,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 04:25:31,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 04:25:31,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 04:25:31,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 04:25:31,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 04:25:31,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 04:25:31,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 04:25:31,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 04:25:31,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 04:25:31,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 04:25:31,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 04:25:31,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 04:25:31,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 04:25:31,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 04:25:31,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 04:25:31,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 04:25:31,601 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.epf [2021-03-11 04:25:31,628 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 04:25:31,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 04:25:31,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 04:25:31,632 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 04:25:31,632 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 04:25:31,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 04:25:31,632 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 04:25:31,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 04:25:31,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 04:25:31,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 04:25:31,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 04:25:31,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 04:25:31,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 04:25:31,633 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 04:25:31,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 04:25:31,634 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 04:25:31,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 04:25:31,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 04:25:31,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 04:25:31,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 04:25:31,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 04:25:31,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:25:31,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 04:25:31,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 04:25:31,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 04:25:31,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 04:25:31,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 04:25:31,635 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 04:25:31,635 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 04:25:31,636 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 04:25:31,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 04:25:31,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 04:25:31,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 04:25:31,910 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 04:25:31,910 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 04:25:31,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadMutex02-unsafe.c [2021-03-11 04:25:31,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5dcc0549/e2a2f601a59649c79336d129d54e2432/FLAGa101d6c97 [2021-03-11 04:25:32,382 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 04:25:32,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadMutex02-unsafe.c [2021-03-11 04:25:32,383 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 04:25:32,383 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-03-11 04:25:32,405 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5dcc0549/e2a2f601a59649c79336d129d54e2432/FLAGa101d6c97 [2021-03-11 04:25:32,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5dcc0549/e2a2f601a59649c79336d129d54e2432 [2021-03-11 04:25:32,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 04:25:32,424 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 04:25:32,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 04:25:32,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 04:25:32,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 04:25:32,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 04:25:32" (1/1) ... [2021-03-11 04:25:32,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8f8632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32, skipping insertion in model container [2021-03-11 04:25:32,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 04:25:32" (1/1) ... [2021-03-11 04:25:32,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 04:25:32,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 04:25:32,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 04:25:32,587 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 04:25:32,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 04:25:32,612 INFO L208 MainTranslator]: Completed translation [2021-03-11 04:25:32,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32 WrapperNode [2021-03-11 04:25:32,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 04:25:32,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 04:25:32,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 04:25:32,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 04:25:32,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32" (1/1) ... [2021-03-11 04:25:32,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32" (1/1) ... [2021-03-11 04:25:32,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 04:25:32,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 04:25:32,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 04:25:32,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 04:25:32,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32" (1/1) ... [2021-03-11 04:25:32,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32" (1/1) ... [2021-03-11 04:25:32,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32" (1/1) ... [2021-03-11 04:25:32,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32" (1/1) ... [2021-03-11 04:25:32,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32" (1/1) ... [2021-03-11 04:25:32,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32" (1/1) ... [2021-03-11 04:25:32,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32" (1/1) ... [2021-03-11 04:25:32,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 04:25:32,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 04:25:32,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 04:25:32,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 04:25:32,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:25:32,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-03-11 04:25:32,710 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 04:25:32,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 04:25:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 04:25:32,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 04:25:32,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 04:25:32,865 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 04:25:32,866 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-03-11 04:25:32,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:25:32 BoogieIcfgContainer [2021-03-11 04:25:32,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 04:25:32,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 04:25:32,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 04:25:32,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 04:25:32,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 04:25:32" (1/3) ... [2021-03-11 04:25:32,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594f8687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:25:32, skipping insertion in model container [2021-03-11 04:25:32,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 04:25:32" (2/3) ... [2021-03-11 04:25:32,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594f8687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:25:32, skipping insertion in model container [2021-03-11 04:25:32,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:25:32" (3/3) ... [2021-03-11 04:25:32,873 INFO L111 eAbstractionObserver]: Analyzing ICFG pthreadMutex02-unsafe.c [2021-03-11 04:25:32,879 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 04:25:32,882 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 04:25:32,893 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-03-11 04:25:32,913 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 04:25:32,913 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 04:25:32,913 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 04:25:32,913 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 04:25:32,913 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 04:25:32,913 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 04:25:32,913 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 04:25:32,913 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 04:25:32,920 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 7 places, 6 transitions, 12 flow [2021-03-11 04:25:32,930 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-11 04:25:32,930 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 04:25:32,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7 conditions, 6 events. 0/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 0/5 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-11 04:25:32,931 INFO L82 GeneralOperation]: Start removeDead. Operand has 7 places, 6 transitions, 12 flow [2021-03-11 04:25:32,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 4 places, 3 transitions, 6 flow [2021-03-11 04:25:32,935 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-11 04:25:32,935 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 04:25:32,935 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:25:32,936 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-03-11 04:25:32,936 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 04:25:32,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:25:32,941 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2021-03-11 04:25:32,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:25:32,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027705966] [2021-03-11 04:25:32,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:25:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 04:25:33,007 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 04:25:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-11 04:25:33,018 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-11 04:25:33,029 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-11 04:25:33,029 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-11 04:25:33,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 04:25:33,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 04:25:33 BoogieIcfgContainer [2021-03-11 04:25:33,040 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 04:25:33,042 INFO L168 Benchmark]: Toolchain (without parser) took 619.02 ms. Allocated memory was 255.9 MB in the beginning and 392.2 MB in the end (delta: 136.3 MB). Free memory was 234.3 MB in the beginning and 348.1 MB in the end (delta: -113.7 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:33,042 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:33,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.46 ms. Allocated memory was 255.9 MB in the beginning and 392.2 MB in the end (delta: 136.3 MB). Free memory was 233.9 MB in the beginning and 374.8 MB in the end (delta: -140.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:33,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.00 ms. Allocated memory is still 392.2 MB. Free memory was 374.8 MB in the beginning and 373.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:33,043 INFO L168 Benchmark]: Boogie Preprocessor took 24.77 ms. Allocated memory is still 392.2 MB. Free memory was 373.3 MB in the beginning and 372.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 04:25:33,044 INFO L168 Benchmark]: RCFGBuilder took 205.90 ms. Allocated memory is still 392.2 MB. Free memory was 372.3 MB in the beginning and 361.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:33,044 INFO L168 Benchmark]: TraceAbstraction took 171.83 ms. Allocated memory is still 392.2 MB. Free memory was 361.2 MB in the beginning and 348.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-11 04:25:33,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 187.46 ms. Allocated memory was 255.9 MB in the beginning and 392.2 MB in the end (delta: 136.3 MB). Free memory was 233.9 MB in the beginning and 374.8 MB in the end (delta: -140.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.00 ms. Allocated memory is still 392.2 MB. Free memory was 374.8 MB in the beginning and 373.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 24.77 ms. Allocated memory is still 392.2 MB. Free memory was 373.3 MB in the beginning and 372.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 205.90 ms. Allocated memory is still 392.2 MB. Free memory was 372.3 MB in the beginning and 361.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 171.83 ms. Allocated memory is still 392.2 MB. Free memory was 361.2 MB in the beginning and 348.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 45]: assertion can be violated assertion can be violated We found a FailurePath: [L35] pthread_mutex_t mutex; VAL [mutex={5:0}] [L42] int ret = pthread_mutex_unlock(&mutex); [L45] CodeAnnotStmt[Assertion] VAL [mutex={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 121.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.7ms SsaConstructionTime, 19.2ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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! Received shutdown request...