/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-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadMutex02-unsafe.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 12:56:02,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 12:56:02,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 12:56:02,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 12:56:02,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 12:56:02,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 12:56:02,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 12:56:02,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 12:56:02,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 12:56:02,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 12:56:02,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 12:56:02,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 12:56:02,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 12:56:02,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 12:56:02,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 12:56:02,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 12:56:02,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 12:56:02,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 12:56:02,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 12:56:02,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 12:56:02,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 12:56:02,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 12:56:02,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 12:56:02,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 12:56:02,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-05 12:56:02,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-05 12:56:02,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-05 12:56:02,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-05 12:56:02,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-05 12:56:02,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-05 12:56:02,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-05 12:56:02,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-05 12:56:02,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-05 12:56:02,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-05 12:56:02,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-05 12:56:02,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-05 12:56:02,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-05 12:56:02,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-05 12:56:02,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 12:56:02,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 12:56:02,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 12:56:02,817 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-FA-NoLbe-Separate.epf [2021-06-05 12:56:02,847 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 12:56:02,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 12:56:02,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 12:56:02,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 12:56:02,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 12:56:02,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 12:56:02,850 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 12:56:02,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 12:56:02,850 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 12:56:02,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 12:56:02,851 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 12:56:02,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 12:56:02,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 12:56:02,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 12:56:02,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 12:56:02,852 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 12:56:02,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 12:56:02,852 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 12:56:02,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 12:56:02,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 12:56:02,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 12:56:02,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 12:56:02,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 12:56:02,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 12:56:02,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 12:56:02,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 12:56:02,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 12:56:02,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 12:56:02,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 12:56:02,854 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 12:56:02,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 12:56:02,854 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 12:56:02,854 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 12:56:03,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 12:56:03,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 12:56:03,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 12:56:03,170 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 12:56:03,170 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 12:56:03,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadMutex02-unsafe.c [2021-06-05 12:56:03,230 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb645641/26fd0a70f22a4458b23a9b3fab0e2556/FLAGf4320b61c [2021-06-05 12:56:03,694 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 12:56:03,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadMutex02-unsafe.c [2021-06-05 12:56:03,695 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 12:56:03,696 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-06-05 12:56:03,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb645641/26fd0a70f22a4458b23a9b3fab0e2556/FLAGf4320b61c [2021-06-05 12:56:04,071 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb645641/26fd0a70f22a4458b23a9b3fab0e2556 [2021-06-05 12:56:04,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 12:56:04,075 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 12:56:04,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 12:56:04,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 12:56:04,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 12:56:04,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:56:04" (1/1) ... [2021-06-05 12:56:04,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67539798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04, skipping insertion in model container [2021-06-05 12:56:04,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 12:56:04" (1/1) ... [2021-06-05 12:56:04,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 12:56:04,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 12:56:04,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 12:56:04,300 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 12:56:04,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 12:56:04,331 INFO L208 MainTranslator]: Completed translation [2021-06-05 12:56:04,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04 WrapperNode [2021-06-05 12:56:04,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 12:56:04,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 12:56:04,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 12:56:04,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 12:56:04,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04" (1/1) ... [2021-06-05 12:56:04,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04" (1/1) ... [2021-06-05 12:56:04,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 12:56:04,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 12:56:04,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 12:56:04,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 12:56:04,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04" (1/1) ... [2021-06-05 12:56:04,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04" (1/1) ... [2021-06-05 12:56:04,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04" (1/1) ... [2021-06-05 12:56:04,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04" (1/1) ... [2021-06-05 12:56:04,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04" (1/1) ... [2021-06-05 12:56:04,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04" (1/1) ... [2021-06-05 12:56:04,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04" (1/1) ... [2021-06-05 12:56:04,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 12:56:04,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 12:56:04,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 12:56:04,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 12:56:04,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04" (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 [2021-06-05 12:56:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-06-05 12:56:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-06-05 12:56:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 12:56:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 12:56:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 12:56:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 12:56:04,627 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 12:56:04,627 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-06-05 12:56:04,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:56:04 BoogieIcfgContainer [2021-06-05 12:56:04,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 12:56:04,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 12:56:04,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 12:56:04,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 12:56:04,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 12:56:04" (1/3) ... [2021-06-05 12:56:04,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bbcc8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:56:04, skipping insertion in model container [2021-06-05 12:56:04,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 12:56:04" (2/3) ... [2021-06-05 12:56:04,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bbcc8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 12:56:04, skipping insertion in model container [2021-06-05 12:56:04,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 12:56:04" (3/3) ... [2021-06-05 12:56:04,635 INFO L111 eAbstractionObserver]: Analyzing ICFG pthreadMutex02-unsafe.c [2021-06-05 12:56:04,639 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 12:56:04,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 12:56:04,658 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-05 12:56:04,677 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 12:56:04,677 INFO L379 AbstractCegarLoop]: Hoare is true [2021-06-05 12:56:04,677 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 12:56:04,677 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 12:56:04,677 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 12:56:04,677 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 12:56:04,678 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 12:56:04,678 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 12:56:04,688 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 12:56:04,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-06-05 12:56:04,691 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 12:56:04,692 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-06-05 12:56:04,692 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 12:56:04,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 12:56:04,697 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2021-06-05 12:56:04,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 12:56:04,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051424567] [2021-06-05 12:56:04,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 12:56:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 12:56:04,809 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 12:56:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-05 12:56:04,835 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-05 12:56:04,855 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-05 12:56:04,855 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-06-05 12:56:04,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 12:56:04,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 12:56:04 BoogieIcfgContainer [2021-06-05 12:56:04,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 12:56:04,891 INFO L168 Benchmark]: Toolchain (without parser) took 813.70 ms. Allocated memory is still 354.4 MB. Free memory was 317.0 MB in the beginning and 307.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-06-05 12:56:04,892 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 354.4 MB. Free memory was 335.1 MB in the beginning and 335.0 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 12:56:04,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.33 ms. Allocated memory is still 354.4 MB. Free memory was 316.8 MB in the beginning and 336.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.0 GB. [2021-06-05 12:56:04,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.94 ms. Allocated memory is still 354.4 MB. Free memory was 336.0 MB in the beginning and 335.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 12:56:04,896 INFO L168 Benchmark]: Boogie Preprocessor took 13.75 ms. Allocated memory is still 354.4 MB. Free memory was 335.0 MB in the beginning and 333.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 12:56:04,896 INFO L168 Benchmark]: RCFGBuilder took 255.72 ms. Allocated memory is still 354.4 MB. Free memory was 333.9 MB in the beginning and 320.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-05 12:56:04,897 INFO L168 Benchmark]: TraceAbstraction took 258.18 ms. Allocated memory is still 354.4 MB. Free memory was 320.3 MB in the beginning and 307.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-05 12:56:04,905 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 354.4 MB. Free memory was 335.1 MB in the beginning and 335.0 MB in the end (delta: 70.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 255.33 ms. Allocated memory is still 354.4 MB. Free memory was 316.8 MB in the beginning and 336.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.94 ms. Allocated memory is still 354.4 MB. Free memory was 336.0 MB in the beginning and 335.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.75 ms. Allocated memory is still 354.4 MB. Free memory was 335.0 MB in the beginning and 333.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 255.72 ms. Allocated memory is still 354.4 MB. Free memory was 333.9 MB in the beginning and 320.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 258.18 ms. Allocated memory is still 354.4 MB. Free memory was 320.3 MB in the beginning and 307.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 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. VerificationResult: UNSAFE, OverallTime: 181.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 6.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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: 4.7ms SsaConstructionTime, 49.6ms 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...