/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadMutex02-unsafe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 08:15:57,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 08:15:57,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 08:15:57,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-13 08:15:57,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-13 08:15:57,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-13 08:15:57,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-13 08:15:57,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-13 08:15:57,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-13 08:15:57,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-13 08:15:57,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-13 08:15:57,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-13 08:15:57,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 08:15:57,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 08:15:57,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 08:15:57,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 08:15:57,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 08:15:57,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 08:15:57,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 08:15:57,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 08:15:57,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 08:15:57,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 08:15:57,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 08:15:57,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 08:15:57,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-13 08:15:57,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-13 08:15:57,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-13 08:15:57,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-13 08:15:57,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-13 08:15:57,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-13 08:15:57,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-13 08:15:57,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-13 08:15:57,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-13 08:15:57,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-13 08:15:57,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-13 08:15:57,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-13 08:15:57,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-13 08:15:57,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-13 08:15:57,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 08:15:57,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 08:15:57,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 08:15:57,125 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 [2021-06-13 08:15:57,164 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 08:15:57,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 08:15:57,167 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 08:15:57,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 08:15:57,167 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 08:15:57,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 08:15:57,168 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 08:15:57,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 08:15:57,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 08:15:57,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 08:15:57,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 08:15:57,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 08:15:57,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 08:15:57,169 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 08:15:57,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 08:15:57,169 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 08:15:57,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 08:15:57,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 08:15:57,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 08:15:57,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 08:15:57,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 08:15:57,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 08:15:57,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 08:15:57,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 08:15:57,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 08:15:57,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 08:15:57,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 08:15:57,171 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 08:15:57,171 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 08:15:57,171 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 08:15:57,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 08:15:57,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 08:15:57,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 08:15:57,512 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 08:15:57,513 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 08:15:57,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadMutex02-unsafe.c [2021-06-13 08:15:57,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4475773ab/4b1013d9c1f743ff8c3427c273cb64b1/FLAG600e3ce63 [2021-06-13 08:15:58,047 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 08:15:58,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadMutex02-unsafe.c [2021-06-13 08:15:58,050 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-13 08:15:58,050 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-13 08:15:58,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4475773ab/4b1013d9c1f743ff8c3427c273cb64b1/FLAG600e3ce63 [2021-06-13 08:15:58,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4475773ab/4b1013d9c1f743ff8c3427c273cb64b1 [2021-06-13 08:15:58,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 08:15:58,575 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 08:15:58,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 08:15:58,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 08:15:58,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 08:15:58,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 08:15:58" (1/1) ... [2021-06-13 08:15:58,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47463885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58, skipping insertion in model container [2021-06-13 08:15:58,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 08:15:58" (1/1) ... [2021-06-13 08:15:58,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 08:15:58,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 08:15:58,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 08:15:58,859 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 08:15:58,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 08:15:58,929 INFO L208 MainTranslator]: Completed translation [2021-06-13 08:15:58,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58 WrapperNode [2021-06-13 08:15:58,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 08:15:58,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 08:15:58,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 08:15:58,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 08:15:58,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58" (1/1) ... [2021-06-13 08:15:58,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58" (1/1) ... [2021-06-13 08:15:58,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 08:15:58,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 08:15:58,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 08:15:58,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 08:15:58,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58" (1/1) ... [2021-06-13 08:15:58,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58" (1/1) ... [2021-06-13 08:15:58,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58" (1/1) ... [2021-06-13 08:15:58,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58" (1/1) ... [2021-06-13 08:15:58,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58" (1/1) ... [2021-06-13 08:15:58,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58" (1/1) ... [2021-06-13 08:15:58,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58" (1/1) ... [2021-06-13 08:15:58,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 08:15:58,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 08:15:58,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 08:15:58,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 08:15:58,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58" (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 [2021-06-13 08:15:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-06-13 08:15:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-13 08:15:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 08:15:59,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 08:15:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-13 08:15:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 08:15:59,264 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 08:15:59,265 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-13 08:15:59,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 08:15:59 BoogieIcfgContainer [2021-06-13 08:15:59,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 08:15:59,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 08:15:59,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 08:15:59,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 08:15:59,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 08:15:58" (1/3) ... [2021-06-13 08:15:59,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53776aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 08:15:59, skipping insertion in model container [2021-06-13 08:15:59,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 08:15:58" (2/3) ... [2021-06-13 08:15:59,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53776aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 08:15:59, skipping insertion in model container [2021-06-13 08:15:59,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 08:15:59" (3/3) ... [2021-06-13 08:15:59,274 INFO L111 eAbstractionObserver]: Analyzing ICFG pthreadMutex02-unsafe.c [2021-06-13 08:15:59,280 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 08:15:59,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 08:15:59,300 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 08:15:59,328 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 08:15:59,328 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 08:15:59,328 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 08:15:59,329 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 08:15:59,329 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 08:15:59,329 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 08:15:59,329 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 08:15:59,329 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 08:15:59,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 7 places, 6 transitions, 12 flow [2021-06-13 08:15:59,351 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-06-13 08:15:59,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:15:59,353 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. [2021-06-13 08:15:59,353 INFO L82 GeneralOperation]: Start removeDead. Operand has 7 places, 6 transitions, 12 flow [2021-06-13 08:15:59,356 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 4 places, 3 transitions, 6 flow [2021-06-13 08:15:59,357 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-06-13 08:15:59,357 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 08:15:59,357 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:15:59,358 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-06-13 08:15:59,358 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:15:59,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:15:59,364 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2021-06-13 08:15:59,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:15:59,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753807439] [2021-06-13 08:15:59,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:15:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 08:15:59,471 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 08:15:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 08:15:59,486 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 08:15:59,501 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-13 08:15:59,502 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-13 08:15:59,502 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 08:15:59,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 08:15:59 BoogieIcfgContainer [2021-06-13 08:15:59,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 08:15:59,519 INFO L168 Benchmark]: Toolchain (without parser) took 943.53 ms. Allocated memory is still 255.9 MB. Free memory was 217.4 MB in the beginning and 208.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 8.0 GB. [2021-06-13 08:15:59,520 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory was 235.8 MB in the beginning and 235.8 MB in the end (delta: 81.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 08:15:59,521 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.58 ms. Allocated memory is still 255.9 MB. Free memory was 217.2 MB in the beginning and 236.7 MB in the end (delta: -19.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-06-13 08:15:59,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.07 ms. Allocated memory is still 255.9 MB. Free memory was 236.7 MB in the beginning and 235.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 08:15:59,522 INFO L168 Benchmark]: Boogie Preprocessor took 23.71 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.6 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 08:15:59,522 INFO L168 Benchmark]: RCFGBuilder took 273.61 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 222.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-13 08:15:59,523 INFO L168 Benchmark]: TraceAbstraction took 249.10 ms. Allocated memory is still 255.9 MB. Free memory was 221.5 MB in the beginning and 208.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-13 08:15:59,525 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory was 235.8 MB in the beginning and 235.8 MB in the end (delta: 81.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 359.58 ms. Allocated memory is still 255.9 MB. Free memory was 217.2 MB in the beginning and 236.7 MB in the end (delta: -19.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 31.07 ms. Allocated memory is still 255.9 MB. Free memory was 236.7 MB in the beginning and 235.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.71 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.6 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 273.61 ms. Allocated memory is still 255.9 MB. Free memory was 234.6 MB in the beginning and 222.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 249.10 ms. Allocated memory is still 255.9 MB. Free memory was 221.5 MB in the beginning and 208.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 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 for errors in thread instance: ULTIMATE.start CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 178.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 26.6ms, 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: 9.2ms SsaConstructionTime, 35.7ms 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...