/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:28:29,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:28:29,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:28:29,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:28:29,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:28:29,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:28:29,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:28:29,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:28:29,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:28:29,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:28:29,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:28:29,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:28:29,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:28:29,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:28:29,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:28:29,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:28:29,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:28:29,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:28:29,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:28:29,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:28:29,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:28:29,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:28:29,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:28:29,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:28:29,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-05 20:28:29,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:28:29,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:28:29,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:28:29,757 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-SemanticLbe.epf [2022-12-05 20:28:29,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:28:29,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:28:29,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:28:29,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:28:29,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:28:29,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:28:29,791 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:28:29,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:28:29,792 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:28:29,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:28:29,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:28:29,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:28:29,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:28:29,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:28:29,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:28:29,793 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:28:29,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:28:29,793 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:28:29,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:28:29,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:28:29,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:28:29,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:28:29,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:28:29,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:28:29,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:28:29,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:28:29,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:28:29,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:28:29,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:28:29,795 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:28:29,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:28:30,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:28:30,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:28:30,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:28:30,143 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:28:30,144 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:28:30,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2022-12-05 20:28:31,332 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:28:31,672 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:28:31,673 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2022-12-05 20:28:31,697 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9e8632e7/ab2e70ad18f2404881bef54239a7880b/FLAG579491683 [2022-12-05 20:28:31,719 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9e8632e7/ab2e70ad18f2404881bef54239a7880b [2022-12-05 20:28:31,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:28:31,722 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:28:31,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:28:31,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:28:31,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:28:31,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:28:31" (1/1) ... [2022-12-05 20:28:31,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f92f476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:31, skipping insertion in model container [2022-12-05 20:28:31,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:28:31" (1/1) ... [2022-12-05 20:28:31,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:28:31,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:28:32,355 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2022-12-05 20:28:32,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:32,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:32,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:32,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:32,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:32,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:32,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:28:32,390 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:28:32,458 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2022-12-05 20:28:32,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:32,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:32,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:32,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:32,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-05 20:28:32,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-05 20:28:32,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:28:32,544 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:28:32,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32 WrapperNode [2022-12-05 20:28:32,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:28:32,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:28:32,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:28:32,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:28:32,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (1/1) ... [2022-12-05 20:28:32,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (1/1) ... [2022-12-05 20:28:32,602 INFO L138 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2022-12-05 20:28:32,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:28:32,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:28:32,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:28:32,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:28:32,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (1/1) ... [2022-12-05 20:28:32,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (1/1) ... [2022-12-05 20:28:32,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (1/1) ... [2022-12-05 20:28:32,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (1/1) ... [2022-12-05 20:28:32,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (1/1) ... [2022-12-05 20:28:32,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (1/1) ... [2022-12-05 20:28:32,628 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (1/1) ... [2022-12-05 20:28:32,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (1/1) ... [2022-12-05 20:28:32,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:28:32,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:28:32,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:28:32,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:28:32,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (1/1) ... [2022-12-05 20:28:32,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:28:32,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:28:32,668 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) [2022-12-05 20:28:32,670 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 [2022-12-05 20:28:32,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-05 20:28:32,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:28:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-05 20:28:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:28:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:28:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:28:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 20:28:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:28:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:28:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:28:32,696 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 20:28:32,696 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 20:28:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:28:32,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:28:32,697 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:28:32,990 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:28:32,992 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:28:33,132 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:28:33,154 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:28:33,155 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:28:33,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:28:33 BoogieIcfgContainer [2022-12-05 20:28:33,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:28:33,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:28:33,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:28:33,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:28:33,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:28:31" (1/3) ... [2022-12-05 20:28:33,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b49c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:28:33, skipping insertion in model container [2022-12-05 20:28:33,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:28:32" (2/3) ... [2022-12-05 20:28:33,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b49c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:28:33, skipping insertion in model container [2022-12-05 20:28:33,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:28:33" (3/3) ... [2022-12-05 20:28:33,164 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2022-12-05 20:28:33,180 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:28:33,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-05 20:28:33,180 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:28:33,232 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-05 20:28:33,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 94 transitions, 196 flow [2022-12-05 20:28:33,338 INFO L130 PetriNetUnfolder]: 4/108 cut-off events. [2022-12-05 20:28:33,339 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:28:33,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 108 events. 4/108 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 149 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2022-12-05 20:28:33,342 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 94 transitions, 196 flow [2022-12-05 20:28:33,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 81 transitions, 168 flow [2022-12-05 20:28:33,349 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:28:33,399 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 81 transitions, 168 flow [2022-12-05 20:28:33,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 81 transitions, 168 flow [2022-12-05 20:28:33,435 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-12-05 20:28:33,436 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:28:33,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 2/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-12-05 20:28:33,439 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 81 transitions, 168 flow [2022-12-05 20:28:33,439 INFO L188 LiptonReduction]: Number of co-enabled transitions 182 [2022-12-05 20:28:35,342 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:35,343 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:35,347 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:35,348 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:36,094 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:36,095 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:36,097 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-05 20:28:36,097 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-05 20:28:36,663 INFO L203 LiptonReduction]: Total number of compositions: 70 [2022-12-05 20:28:36,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:28:36,681 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;@3dea2c7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:28:36,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 20:28:36,682 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-05 20:28:36,682 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:28:36,682 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:28:36,683 INFO L213 CegarLoopForPetriNet]: trace histogram [1] [2022-12-05 20:28:36,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 20:28:36,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:28:36,687 INFO L85 PathProgramCache]: Analyzing trace with hash 349, now seen corresponding path program 1 times [2022-12-05 20:28:36,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:28:36,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875964857] [2022-12-05 20:28:36,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:28:36,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:28:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:28:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:28:36,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:28:36,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875964857] [2022-12-05 20:28:36,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875964857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:28:36,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:28:36,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-05 20:28:36,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76685563] [2022-12-05 20:28:36,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:28:36,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-05 20:28:36,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:28:36,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-05 20:28:36,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-05 20:28:36,898 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 13 [2022-12-05 20:28:36,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 13 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-05 20:28:36,900 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:28:36,900 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 13 [2022-12-05 20:28:36,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:28:36,927 INFO L130 PetriNetUnfolder]: 3/14 cut-off events. [2022-12-05 20:28:36,927 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:28:36,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 14 events. 3/14 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 20 event pairs, 3 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 21. Up to 14 conditions per place. [2022-12-05 20:28:36,929 INFO L137 encePairwiseOnDemand]: 9/13 looper letters, 5 selfloop transitions, 0 changer transitions 2/8 dead transitions. [2022-12-05 20:28:36,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 36 flow [2022-12-05 20:28:36,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-05 20:28:36,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-05 20:28:36,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 13 transitions. [2022-12-05 20:28:36,938 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-05 20:28:36,940 INFO L175 Difference]: Start difference. First operand has 16 places, 13 transitions, 32 flow. Second operand 2 states and 13 transitions. [2022-12-05 20:28:36,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 36 flow [2022-12-05 20:28:36,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 8 transitions, 32 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:28:36,943 INFO L231 Difference]: Finished difference. Result has 11 places, 6 transitions, 13 flow [2022-12-05 20:28:36,944 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=13, PETRI_PLACES=11, PETRI_TRANSITIONS=6} [2022-12-05 20:28:36,947 INFO L294 CegarLoopForPetriNet]: 16 programPoint places, -5 predicate places. [2022-12-05 20:28:36,947 INFO L495 AbstractCegarLoop]: Abstraction has has 11 places, 6 transitions, 13 flow [2022-12-05 20:28:36,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-12-05 20:28:36,948 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:28:36,948 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-05 20:28:36,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:28:36,948 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 20:28:36,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:28:36,949 INFO L85 PathProgramCache]: Analyzing trace with hash 11030101, now seen corresponding path program 1 times [2022-12-05 20:28:36,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:28:36,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758947948] [2022-12-05 20:28:36,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:28:36,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:28:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:28:37,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:28:37,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:28:37,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758947948] [2022-12-05 20:28:37,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758947948] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:28:37,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:28:37,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 20:28:37,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779867179] [2022-12-05 20:28:37,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:28:37,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:28:37,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:28:37,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:28:37,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:28:37,150 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 13 [2022-12-05 20:28:37,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 11 places, 6 transitions, 13 flow. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-05 20:28:37,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:28:37,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 13 [2022-12-05 20:28:37,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:28:37,164 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-05 20:28:37,164 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:28:37,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 2/10 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-12-05 20:28:37,165 INFO L137 encePairwiseOnDemand]: 10/13 looper letters, 3 selfloop transitions, 2 changer transitions 2/7 dead transitions. [2022-12-05 20:28:37,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 7 transitions, 27 flow [2022-12-05 20:28:37,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:28:37,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:28:37,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-12-05 20:28:37,166 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.2564102564102564 [2022-12-05 20:28:37,166 INFO L175 Difference]: Start difference. First operand has 11 places, 6 transitions, 13 flow. Second operand 3 states and 10 transitions. [2022-12-05 20:28:37,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 7 transitions, 27 flow [2022-12-05 20:28:37,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 7 transitions, 27 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 20:28:37,168 INFO L231 Difference]: Finished difference. Result has 12 places, 5 transitions, 19 flow [2022-12-05 20:28:37,168 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=13, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=19, PETRI_PLACES=12, PETRI_TRANSITIONS=5} [2022-12-05 20:28:37,169 INFO L294 CegarLoopForPetriNet]: 16 programPoint places, -4 predicate places. [2022-12-05 20:28:37,169 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 5 transitions, 19 flow [2022-12-05 20:28:37,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-05 20:28:37,169 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:28:37,169 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-05 20:28:37,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:28:37,170 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-05 20:28:37,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:28:37,170 INFO L85 PathProgramCache]: Analyzing trace with hash 341937028, now seen corresponding path program 1 times [2022-12-05 20:28:37,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:28:37,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002786796] [2022-12-05 20:28:37,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:28:37,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:28:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:28:37,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 20:28:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:28:37,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 20:28:37,233 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 20:28:37,234 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 20:28:37,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-05 20:28:37,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-12-05 20:28:37,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-12-05 20:28:37,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-05 20:28:37,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:28:37,236 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-05 20:28:37,240 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:28:37,241 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:28:37,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:28:37 BasicIcfg [2022-12-05 20:28:37,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:28:37,259 INFO L158 Benchmark]: Toolchain (without parser) took 5536.88ms. Allocated memory was 181.4MB in the beginning and 250.6MB in the end (delta: 69.2MB). Free memory was 155.3MB in the beginning and 148.0MB in the end (delta: 7.3MB). Peak memory consumption was 78.1MB. Max. memory is 8.0GB. [2022-12-05 20:28:37,260 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 181.4MB. Free memory was 157.9MB in the beginning and 157.8MB in the end (delta: 92.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:28:37,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 819.81ms. Allocated memory is still 181.4MB. Free memory was 154.8MB in the beginning and 102.4MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. [2022-12-05 20:28:37,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.64ms. Allocated memory is still 181.4MB. Free memory was 102.4MB in the beginning and 98.7MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 20:28:37,261 INFO L158 Benchmark]: Boogie Preprocessor took 31.41ms. Allocated memory is still 181.4MB. Free memory was 98.7MB in the beginning and 96.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:28:37,261 INFO L158 Benchmark]: RCFGBuilder took 521.51ms. Allocated memory is still 181.4MB. Free memory was 96.1MB in the beginning and 75.6MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-05 20:28:37,261 INFO L158 Benchmark]: TraceAbstraction took 4099.93ms. Allocated memory was 181.4MB in the beginning and 250.6MB in the end (delta: 69.2MB). Free memory was 75.1MB in the beginning and 148.0MB in the end (delta: -72.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:28:37,263 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 181.4MB. Free memory was 157.9MB in the beginning and 157.8MB in the end (delta: 92.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 819.81ms. Allocated memory is still 181.4MB. Free memory was 154.8MB in the beginning and 102.4MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.64ms. Allocated memory is still 181.4MB. Free memory was 102.4MB in the beginning and 98.7MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.41ms. Allocated memory is still 181.4MB. Free memory was 98.7MB in the beginning and 96.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 521.51ms. Allocated memory is still 181.4MB. Free memory was 96.1MB in the beginning and 75.6MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 4099.93ms. Allocated memory was 181.4MB in the beginning and 250.6MB in the end (delta: 69.2MB). Free memory was 75.1MB in the beginning and 148.0MB in the end (delta: -72.9MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 82 PlacesBefore, 16 PlacesAfterwards, 81 TransitionsBefore, 13 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 52 TrivialYvCompositions, 16 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 117, independent: 110, independent conditional: 110, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 117, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 117, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 117, independent: 110, independent conditional: 0, independent unconditional: 110, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 107, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 107, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 117, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 107, unknown conditional: 0, unknown unconditional: 107] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 170, Positive conditional cache size: 0, Positive unconditional cache size: 170, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL, EXPR 0 module_init() [L1709] 0 pdev = 1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1713] 0 return 0; [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [\old(expression)=0, \result={0:0}, arg={0:0}, arg={0:0}, expression=0, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1695]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1712]: 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, 99 locations, 5 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: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-12-05 20:28:37,281 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...