/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/svcomp/pthread-divine/condvar_spurious_wakeup.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:35:02,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:35:02,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:35:02,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:35:02,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:35:02,251 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:35:02,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:35:02,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:35:02,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:35:02,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:35:02,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:35:02,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:35:02,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:35:02,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:35:02,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:35:02,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:35:02,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:35:02,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:35:02,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:35:02,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:35:02,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:35:02,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:35:02,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:35:02,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:35:02,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-20 22:35:02,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 22:35:02,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 22:35:02,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 22:35:02,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 22:35:02,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 22:35:02,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 22:35:02,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 22:35:02,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 22:35:02,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:35:02,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:35:02,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:35:02,295 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 [2022-09-20 22:35:02,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:35:02,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:35:02,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:35:02,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:35:02,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:35:02,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:35:02,315 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:35:02,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:35:02,315 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:35:02,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:35:02,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:35:02,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:35:02,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:35:02,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:35:02,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:35:02,315 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:35:02,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:35:02,316 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:35:02,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:35:02,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:35:02,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:35:02,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:35:02,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:35:02,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:35:02,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:35:02,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:35:02,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:35:02,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:35:02,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:35:02,317 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:35:02,317 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:35:02,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:35:02,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:35:02,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:35:02,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:35:02,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:35:02,500 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:35:02,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-09-20 22:35:02,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51065086c/f0a12bb8a9154a8ea3d4bf938689e8b9/FLAG34e436a7b [2022-09-20 22:35:02,963 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:35:02,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/condvar_spurious_wakeup.i [2022-09-20 22:35:02,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51065086c/f0a12bb8a9154a8ea3d4bf938689e8b9/FLAG34e436a7b [2022-09-20 22:35:03,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51065086c/f0a12bb8a9154a8ea3d4bf938689e8b9 [2022-09-20 22:35:03,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:35:03,337 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:35:03,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:35:03,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:35:03,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:35:03,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d008cc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03, skipping insertion in model container [2022-09-20 22:35:03,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:35:03,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:35:03,491 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-20 22:35:03,602 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] [2022-09-20 22:35:03,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:35:03,629 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:35:03,642 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-20 22:35:03,670 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] [2022-09-20 22:35:03,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:35:03,706 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:35:03,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03 WrapperNode [2022-09-20 22:35:03,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:35:03,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:35:03,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:35:03,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:35:03,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,742 INFO L138 Inliner]: procedures = 169, calls = 35, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2022-09-20 22:35:03,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:35:03,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:35:03,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:35:03,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:35:03,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:35:03,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:35:03,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:35:03,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:35:03,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03" (1/1) ... [2022-09-20 22:35:03,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:35:03,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:35:03,779 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) [2022-09-20 22:35:03,781 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 [2022-09-20 22:35:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 22:35:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:35:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-20 22:35:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:35:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:35:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:35:03,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:35:03,816 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-09-20 22:35:03,816 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-09-20 22:35:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:35:03,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:35:03,818 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:35:03,922 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:35:03,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:35:04,073 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:35:04,077 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:35:04,077 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-09-20 22:35:04,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:35:04 BoogieIcfgContainer [2022-09-20 22:35:04,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:35:04,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:35:04,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:35:04,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:35:04,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:35:03" (1/3) ... [2022-09-20 22:35:04,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2194fe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:35:04, skipping insertion in model container [2022-09-20 22:35:04,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:35:03" (2/3) ... [2022-09-20 22:35:04,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2194fe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:35:04, skipping insertion in model container [2022-09-20 22:35:04,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:35:04" (3/3) ... [2022-09-20 22:35:04,090 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar_spurious_wakeup.i [2022-09-20 22:35:04,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:35:04,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 22:35:04,103 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:35:04,153 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-20 22:35:04,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 156 flow [2022-09-20 22:35:04,232 INFO L130 PetriNetUnfolder]: 3/73 cut-off events. [2022-09-20 22:35:04,232 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-09-20 22:35:04,236 INFO L83 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 32 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. [2022-09-20 22:35:04,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 156 flow [2022-09-20 22:35:04,241 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 66 transitions, 135 flow [2022-09-20 22:35:04,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:35:04,261 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@316bd656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:35:04,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-09-20 22:35:04,283 INFO L130 PetriNetUnfolder]: 3/63 cut-off events. [2022-09-20 22:35:04,283 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-20 22:35:04,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:35:04,284 INFO L208 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] [2022-09-20 22:35:04,285 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-09-20 22:35:04,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:35:04,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1033982442, now seen corresponding path program 1 times [2022-09-20 22:35:04,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:35:04,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896229062] [2022-09-20 22:35:04,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:35:04,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:35:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:35:04,436 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-20 22:35:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-20 22:35:04,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-20 22:35:04,500 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-09-20 22:35:04,501 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-09-20 22:35:04,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-09-20 22:35:04,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-09-20 22:35:04,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:35:04,503 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-09-20 22:35:04,508 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:35:04,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:35:04,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:35:04 BasicIcfg [2022-09-20 22:35:04,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:35:04,548 INFO L158 Benchmark]: Toolchain (without parser) took 1210.09ms. Allocated memory was 185.6MB in the beginning and 242.2MB in the end (delta: 56.6MB). Free memory was 159.6MB in the beginning and 159.7MB in the end (delta: -85.8kB). Peak memory consumption was 55.7MB. Max. memory is 8.0GB. [2022-09-20 22:35:04,549 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 185.6MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:35:04,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.07ms. Allocated memory was 185.6MB in the beginning and 242.2MB in the end (delta: 56.6MB). Free memory was 159.6MB in the beginning and 204.3MB in the end (delta: -44.7MB). Peak memory consumption was 16.9MB. Max. memory is 8.0GB. [2022-09-20 22:35:04,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.39ms. Allocated memory is still 242.2MB. Free memory was 203.8MB in the beginning and 202.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 22:35:04,553 INFO L158 Benchmark]: Boogie Preprocessor took 14.44ms. Allocated memory is still 242.2MB. Free memory was 202.2MB in the beginning and 200.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:35:04,554 INFO L158 Benchmark]: RCFGBuilder took 321.01ms. Allocated memory is still 242.2MB. Free memory was 200.6MB in the beginning and 188.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-20 22:35:04,554 INFO L158 Benchmark]: TraceAbstraction took 466.61ms. Allocated memory is still 242.2MB. Free memory was 187.5MB in the beginning and 159.7MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-09-20 22:35:04,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 185.6MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 364.07ms. Allocated memory was 185.6MB in the beginning and 242.2MB in the end (delta: 56.6MB). Free memory was 159.6MB in the beginning and 204.3MB in the end (delta: -44.7MB). Peak memory consumption was 16.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.39ms. Allocated memory is still 242.2MB. Free memory was 203.8MB in the beginning and 202.2MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.44ms. Allocated memory is still 242.2MB. Free memory was 202.2MB in the beginning and 200.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 321.01ms. Allocated memory is still 242.2MB. Free memory was 200.6MB in the beginning and 188.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 466.61ms. Allocated memory is still 242.2MB. Free memory was 187.5MB in the beginning and 159.7MB in the end (delta: 27.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L709] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [arg={0:0}, cond={4:0}, lock={3:0}, pthread_create( &t, ((void *)0), thread, ((void *)0) )=-1, t={7:0}, x=0] [L704] 1 !(x == 42) ? reach_error() : (void)0 VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] [L704] 1 reach_error() VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0] - UnprovableResult [Line: 712]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, 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! [2022-09-20 22:35:04,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...