/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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 06:26:11,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 06:26:11,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 06:26:11,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 06:26:11,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 06:26:11,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 06:26:11,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 06:26:11,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 06:26:11,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 06:26:11,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 06:26:11,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 06:26:11,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 06:26:11,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 06:26:11,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 06:26:11,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 06:26:11,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 06:26:11,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 06:26:11,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 06:26:11,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 06:26:11,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 06:26:11,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 06:26:11,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 06:26:11,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 06:26:11,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 06:26:11,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 06:26:11,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 06:26:11,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 06:26:11,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 06:26:11,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 06:26:11,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 06:26:11,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 06:26:11,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 06:26:11,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 06:26:11,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 06:26:11,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 06:26:11,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 06:26:11,772 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-VariableLbe.epf [2023-01-28 06:26:11,800 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 06:26:11,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 06:26:11,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 06:26:11,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 06:26:11,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 06:26:11,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 06:26:11,803 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 06:26:11,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 06:26:11,803 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 06:26:11,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 06:26:11,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 06:26:11,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 06:26:11,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 06:26:11,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 06:26:11,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 06:26:11,805 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 06:26:11,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 06:26:11,805 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 06:26:11,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 06:26:11,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 06:26:11,805 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 06:26:11,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 06:26:11,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 06:26:11,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:26:11,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 06:26:11,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 06:26:11,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 06:26:11,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 06:26:11,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 06:26:11,806 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 06:26:11,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 06:26:11,807 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 06:26:12,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 06:26:12,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 06:26:12,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 06:26:12,063 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 06:26:12,063 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 06:26:12,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2023-01-28 06:26:13,232 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 06:26:13,417 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 06:26:13,418 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2023-01-28 06:26:13,432 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0e0d6932/ab8c4e44102742d68fdcffc96c179b2b/FLAGcdbe018e4 [2023-01-28 06:26:13,446 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0e0d6932/ab8c4e44102742d68fdcffc96c179b2b [2023-01-28 06:26:13,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 06:26:13,449 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 06:26:13,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 06:26:13,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 06:26:13,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 06:26:13,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbb66b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13, skipping insertion in model container [2023-01-28 06:26:13,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 06:26:13,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 06:26:13,778 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2023-01-28 06:26:13,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:26:13,793 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 06:26:13,839 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2023-01-28 06:26:13,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 06:26:13,871 INFO L208 MainTranslator]: Completed translation [2023-01-28 06:26:13,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13 WrapperNode [2023-01-28 06:26:13,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 06:26:13,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 06:26:13,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 06:26:13,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 06:26:13,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,905 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2023-01-28 06:26:13,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 06:26:13,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 06:26:13,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 06:26:13,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 06:26:13,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,922 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 06:26:13,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 06:26:13,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 06:26:13,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 06:26:13,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (1/1) ... [2023-01-28 06:26:13,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 06:26:13,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 06:26:13,952 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) [2023-01-28 06:26:13,966 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 [2023-01-28 06:26:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 06:26:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 06:26:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 06:26:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 06:26:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 06:26:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 06:26:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 06:26:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 06:26:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 06:26:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 06:26:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 06:26:13,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 06:26:13,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 06:26:13,998 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 06:26:14,125 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 06:26:14,127 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 06:26:14,284 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 06:26:14,290 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 06:26:14,290 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 06:26:14,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:26:14 BoogieIcfgContainer [2023-01-28 06:26:14,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 06:26:14,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 06:26:14,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 06:26:14,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 06:26:14,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 06:26:13" (1/3) ... [2023-01-28 06:26:14,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b93b450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:26:14, skipping insertion in model container [2023-01-28 06:26:14,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 06:26:13" (2/3) ... [2023-01-28 06:26:14,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b93b450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 06:26:14, skipping insertion in model container [2023-01-28 06:26:14,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 06:26:14" (3/3) ... [2023-01-28 06:26:14,301 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2023-01-28 06:26:14,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 06:26:14,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 06:26:14,316 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 06:26:14,403 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 06:26:14,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 89 transitions, 194 flow [2023-01-28 06:26:14,497 INFO L130 PetriNetUnfolder]: 1/87 cut-off events. [2023-01-28 06:26:14,497 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:26:14,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 87 events. 1/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-01-28 06:26:14,500 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 89 transitions, 194 flow [2023-01-28 06:26:14,504 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 77 transitions, 166 flow [2023-01-28 06:26:14,508 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 06:26:14,516 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 166 flow [2023-01-28 06:26:14,518 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 166 flow [2023-01-28 06:26:14,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 166 flow [2023-01-28 06:26:14,548 INFO L130 PetriNetUnfolder]: 0/77 cut-off events. [2023-01-28 06:26:14,563 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:26:14,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 77 events. 0/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-01-28 06:26:14,564 INFO L119 LiptonReduction]: Number of co-enabled transitions 732 [2023-01-28 06:26:17,368 INFO L134 LiptonReduction]: Checked pairs total: 2433 [2023-01-28 06:26:17,368 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-01-28 06:26:17,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 06:26:17,387 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;@32287cad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 06:26:17,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 06:26:17,395 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2023-01-28 06:26:17,395 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 06:26:17,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 06:26:17,405 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] [2023-01-28 06:26:17,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 06:26:17,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 06:26:17,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1212926621, now seen corresponding path program 1 times [2023-01-28 06:26:17,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 06:26:17,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504674812] [2023-01-28 06:26:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 06:26:17,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 06:26:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 06:26:17,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 06:26:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 06:26:17,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 06:26:17,736 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 06:26:17,738 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 06:26:17,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 06:26:17,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-01-28 06:26:17,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 06:26:17,741 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 06:26:17,751 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 06:26:17,751 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 06:26:17,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 06:26:17 BasicIcfg [2023-01-28 06:26:17,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 06:26:17,794 INFO L158 Benchmark]: Toolchain (without parser) took 4345.03ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 324.8MB in the beginning and 413.4MB in the end (delta: -88.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:26:17,794 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 214.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:26:17,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.05ms. Allocated memory is still 379.6MB. Free memory was 324.6MB in the beginning and 348.8MB in the end (delta: -24.2MB). Peak memory consumption was 19.1MB. Max. memory is 16.0GB. [2023-01-28 06:26:17,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.99ms. Allocated memory is still 379.6MB. Free memory was 348.8MB in the beginning and 346.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 06:26:17,798 INFO L158 Benchmark]: Boogie Preprocessor took 19.75ms. Allocated memory is still 379.6MB. Free memory was 346.7MB in the beginning and 345.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:26:17,801 INFO L158 Benchmark]: RCFGBuilder took 365.68ms. Allocated memory is still 379.6MB. Free memory was 345.2MB in the beginning and 330.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-01-28 06:26:17,801 INFO L158 Benchmark]: TraceAbstraction took 3499.51ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 329.9MB in the beginning and 413.4MB in the end (delta: -83.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 06:26:17,803 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 214.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 422.05ms. Allocated memory is still 379.6MB. Free memory was 324.6MB in the beginning and 348.8MB in the end (delta: -24.2MB). Peak memory consumption was 19.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.99ms. Allocated memory is still 379.6MB. Free memory was 348.8MB in the beginning and 346.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 19.75ms. Allocated memory is still 379.6MB. Free memory was 346.7MB in the beginning and 345.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 365.68ms. Allocated memory is still 379.6MB. Free memory was 345.2MB in the beginning and 330.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3499.51ms. Allocated memory was 379.6MB in the beginning and 457.2MB in the end (delta: 77.6MB). Free memory was 329.9MB in the beginning and 413.4MB in the end (delta: -83.5MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 84 PlacesBefore, 30 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 2433 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1335, independent: 1170, independent conditional: 0, independent unconditional: 1170, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 373, independent: 348, independent conditional: 0, independent unconditional: 348, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1335, independent: 822, independent conditional: 0, independent unconditional: 822, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 373, unknown conditional: 0, unknown unconditional: 373] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t1, 0, thread1, 0)=-2, t1={6:0}, t2={5:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t2, 0, thread2, 0)=-1, t1={6:0}, t2={5:0}] [L707] 2 data1+=5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=10, ma={3:0}, mb={4:0}] [L710] 2 data2-=6 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={3:0}, mb={4:0}] [L712] 2 return 0; [L697] 1 data1++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=4, ma={3:0}, mb={4:0}] [L700] 1 data2++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}] [L702] 1 return 0; [L723] 0 \read(t1) VAL [\read(t1)=-2, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\read(t1)=-2, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] 0 \read(t2) VAL [\read(t2)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\read(t2)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L725] COND TRUE 0 data1==16 && data2==5 [L727] 0 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] - UnprovableResult [Line: 722]: 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. - UnprovableResult [Line: 721]: 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 5 procedures, 119 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: 3.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred 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, 23 NumberOfCodeBlocks, 23 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! [2023-01-28 06:26:17,829 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...