/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 06:46:55,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 06:46:55,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 06:46:55,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 06:46:55,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 06:46:55,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 06:46:55,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 06:46:55,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 06:46:55,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 06:46:55,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 06:46:55,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 06:46:55,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 06:46:55,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 06:46:55,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 06:46:55,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 06:46:55,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 06:46:55,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 06:46:55,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 06:46:55,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 06:46:55,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 06:46:55,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 06:46:55,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 06:46:55,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 06:46:55,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 06:46:55,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-06 06:46:55,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 06:46:55,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 06:46:55,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 06:46:55,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 06:46:55,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 06:46:55,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 06:46:55,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 06:46:55,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 06:46:55,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 06:46:55,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 06:46:55,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 06:46:55,403 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 06:46:55,426 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 06:46:55,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 06:46:55,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 06:46:55,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 06:46:55,428 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 06:46:55,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 06:46:55,428 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 06:46:55,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 06:46:55,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 06:46:55,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 06:46:55,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 06:46:55,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 06:46:55,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 06:46:55,429 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 06:46:55,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 06:46:55,429 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 06:46:55,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 06:46:55,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 06:46:55,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 06:46:55,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 06:46:55,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 06:46:55,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:46:55,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 06:46:55,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 06:46:55,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 06:46:55,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 06:46:55,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 06:46:55,430 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 06:46:55,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 06:46:55,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 06:46:55,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 06:46:55,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 06:46:55,694 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 06:46:55,694 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 06:46:55,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2022-12-06 06:46:56,686 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 06:46:56,969 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 06:46:56,969 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2022-12-06 06:46:56,985 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e691362ab/8af4650b106542f999a36dde2ca4abd9/FLAG9c64f7d01 [2022-12-06 06:46:57,000 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e691362ab/8af4650b106542f999a36dde2ca4abd9 [2022-12-06 06:46:57,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 06:46:57,003 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 06:46:57,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 06:46:57,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 06:46:57,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 06:46:57,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5792814e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57, skipping insertion in model container [2022-12-06 06:46:57,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 06:46:57,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 06:46:57,488 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_2-join.i[76153,76166] [2022-12-06 06:46:57,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:46:57,492 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:46:57,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:46:57,502 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:46:57,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:46:57,503 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:46:57,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:46:57,515 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 06:46:57,569 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_2-join.i[76153,76166] [2022-12-06 06:46:57,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:46:57,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:46:57,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:46:57,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:46:57,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 06:46:57,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 06:46:57,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:46:57,704 INFO L208 MainTranslator]: Completed translation [2022-12-06 06:46:57,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57 WrapperNode [2022-12-06 06:46:57,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 06:46:57,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 06:46:57,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 06:46:57,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 06:46:57,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,762 INFO L138 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2022-12-06 06:46:57,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 06:46:57,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 06:46:57,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 06:46:57,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 06:46:57,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 06:46:57,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 06:46:57,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 06:46:57,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 06:46:57,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (1/1) ... [2022-12-06 06:46:57,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:46:57,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 06:46:57,855 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) [2022-12-06 06:46:57,857 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 [2022-12-06 06:46:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 06:46:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 06:46:57,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 06:46:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 06:46:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 06:46:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 06:46:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 06:46:57,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 06:46:57,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 06:46:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 06:46:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 06:46:57,884 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 06:46:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 06:46:57,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 06:46:57,885 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 06:46:58,138 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 06:46:58,139 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 06:46:58,304 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 06:46:58,321 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 06:46:58,321 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 06:46:58,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:46:58 BoogieIcfgContainer [2022-12-06 06:46:58,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 06:46:58,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 06:46:58,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 06:46:58,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 06:46:58,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:46:57" (1/3) ... [2022-12-06 06:46:58,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4c9775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:46:58, skipping insertion in model container [2022-12-06 06:46:58,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:46:57" (2/3) ... [2022-12-06 06:46:58,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4c9775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:46:58, skipping insertion in model container [2022-12-06 06:46:58,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:46:58" (3/3) ... [2022-12-06 06:46:58,331 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2022-12-06 06:46:58,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 06:46:58,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-06 06:46:58,343 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 06:46:58,390 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 06:46:58,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 94 transitions, 196 flow [2022-12-06 06:46:58,509 INFO L130 PetriNetUnfolder]: 4/105 cut-off events. [2022-12-06 06:46:58,510 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 06:46:58,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 4/105 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 136 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 62. Up to 3 conditions per place. [2022-12-06 06:46:58,513 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 94 transitions, 196 flow [2022-12-06 06:46:58,534 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 77 transitions, 160 flow [2022-12-06 06:46:58,536 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:46:58,585 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 77 transitions, 160 flow [2022-12-06 06:46:58,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 77 transitions, 160 flow [2022-12-06 06:46:58,639 INFO L130 PetriNetUnfolder]: 1/77 cut-off events. [2022-12-06 06:46:58,640 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 06:46:58,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 77 events. 1/77 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-12-06 06:46:58,642 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 77 transitions, 160 flow [2022-12-06 06:46:58,642 INFO L188 LiptonReduction]: Number of co-enabled transitions 182 [2022-12-06 06:46:58,739 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 06:46:58,741 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 06:46:58,745 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 06:46:58,746 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 06:46:59,154 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 06:46:59,156 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 06:46:59,158 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 06:46:59,158 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 06:46:59,793 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 06:46:59,795 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 06:46:59,796 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 06:46:59,797 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 06:46:59,959 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 06:46:59,960 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 06:46:59,961 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 06:46:59,962 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 06:47:00,721 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 06:47:00,722 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 06:47:00,723 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 06:47:00,724 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 06:47:01,253 INFO L203 LiptonReduction]: Total number of compositions: 68 [2022-12-06 06:47:01,266 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 06:47:01,271 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=REPEATED_LIPTON_PN, 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;@5d560a8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 06:47:01,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 06:47:01,272 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 06:47:01,272 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:47:01,272 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:47:01,273 INFO L213 CegarLoopForPetriNet]: trace histogram [1] [2022-12-06 06:47:01,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-06 06:47:01,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:47:01,277 INFO L85 PathProgramCache]: Analyzing trace with hash 349, now seen corresponding path program 1 times [2022-12-06 06:47:01,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:47:01,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511187453] [2022-12-06 06:47:01,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:47:01,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:47:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:47:01,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:47:01,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:47:01,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511187453] [2022-12-06 06:47:01,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511187453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:47:01,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:47:01,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-06 06:47:01,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588347646] [2022-12-06 06:47:01,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:47:01,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-06 06:47:01,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:47:01,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-06 06:47:01,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-06 06:47:01,486 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 11 [2022-12-06 06:47:01,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 11 transitions, 28 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) [2022-12-06 06:47:01,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:47:01,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 11 [2022-12-06 06:47:01,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:47:01,510 INFO L130 PetriNetUnfolder]: 3/14 cut-off events. [2022-12-06 06:47:01,510 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 06:47:01,510 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 22 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. [2022-12-06 06:47:01,511 INFO L137 encePairwiseOnDemand]: 8/11 looper letters, 5 selfloop transitions, 0 changer transitions 2/8 dead transitions. [2022-12-06 06:47:01,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 36 flow [2022-12-06 06:47:01,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-06 06:47:01,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-06 06:47:01,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 12 transitions. [2022-12-06 06:47:01,522 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2022-12-06 06:47:01,524 INFO L175 Difference]: Start difference. First operand has 15 places, 11 transitions, 28 flow. Second operand 2 states and 12 transitions. [2022-12-06 06:47:01,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 36 flow [2022-12-06 06:47:01,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 8 transitions, 32 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 06:47:01,527 INFO L231 Difference]: Finished difference. Result has 11 places, 6 transitions, 13 flow [2022-12-06 06:47:01,530 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=11, 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} [2022-12-06 06:47:01,533 INFO L294 CegarLoopForPetriNet]: 15 programPoint places, -4 predicate places. [2022-12-06 06:47:01,536 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:47:01,542 INFO L89 Accepts]: Start accepts. Operand has 11 places, 6 transitions, 13 flow [2022-12-06 06:47:01,545 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:47:01,545 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:47:01,545 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 11 places, 6 transitions, 13 flow [2022-12-06 06:47:01,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 8 places, 6 transitions, 13 flow [2022-12-06 06:47:01,554 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-06 06:47:01,554 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:47:01,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8 conditions, 6 events. 0/6 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 5 event pairs, 0 based on Foata normal form. 0/5 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-06 06:47:01,554 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 8 places, 6 transitions, 13 flow [2022-12-06 06:47:01,554 INFO L188 LiptonReduction]: Number of co-enabled transitions 8 [2022-12-06 06:47:01,561 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 06:47:01,563 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 27 [2022-12-06 06:47:01,564 INFO L495 AbstractCegarLoop]: Abstraction has has 8 places, 6 transitions, 13 flow [2022-12-06 06:47:01,565 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) [2022-12-06 06:47:01,565 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:47:01,565 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-06 06:47:01,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 06:47:01,565 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-06 06:47:01,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:47:01,566 INFO L85 PathProgramCache]: Analyzing trace with hash 10759821, now seen corresponding path program 1 times [2022-12-06 06:47:01,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:47:01,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922896204] [2022-12-06 06:47:01,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:47:01,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:47:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 06:47:01,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 06:47:01,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 06:47:01,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922896204] [2022-12-06 06:47:01,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922896204] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 06:47:01,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 06:47:01,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 06:47:01,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809398023] [2022-12-06 06:47:01,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 06:47:01,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 06:47:01,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 06:47:01,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 06:47:01,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 06:47:01,767 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 6 [2022-12-06 06:47:01,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 8 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) [2022-12-06 06:47:01,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 06:47:01,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 6 [2022-12-06 06:47:01,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 06:47:01,780 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-06 06:47:01,780 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 06:47:01,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18 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. [2022-12-06 06:47:01,780 INFO L137 encePairwiseOnDemand]: 3/6 looper letters, 3 selfloop transitions, 2 changer transitions 2/7 dead transitions. [2022-12-06 06:47:01,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 7 transitions, 27 flow [2022-12-06 06:47:01,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 06:47:01,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 06:47:01,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-12-06 06:47:01,781 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-06 06:47:01,781 INFO L175 Difference]: Start difference. First operand has 8 places, 6 transitions, 13 flow. Second operand 3 states and 10 transitions. [2022-12-06 06:47:01,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 7 transitions, 27 flow [2022-12-06 06:47:01,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 7 transitions, 27 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 06:47:01,783 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 19 flow [2022-12-06 06:47:01,783 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=6, PETRI_DIFFERENCE_MINUEND_FLOW=13, PETRI_DIFFERENCE_MINUEND_PLACES=8, 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=11, PETRI_TRANSITIONS=5} [2022-12-06 06:47:01,784 INFO L294 CegarLoopForPetriNet]: 15 programPoint places, -4 predicate places. [2022-12-06 06:47:01,784 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 06:47:01,784 INFO L89 Accepts]: Start accepts. Operand has 11 places, 5 transitions, 19 flow [2022-12-06 06:47:01,784 INFO L95 Accepts]: Finished accepts. [2022-12-06 06:47:01,784 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:47:01,784 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 11 places, 5 transitions, 19 flow [2022-12-06 06:47:01,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 10 places, 5 transitions, 19 flow [2022-12-06 06:47:01,787 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-06 06:47:01,788 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 06:47:01,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 5 events. 0/5 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 0/5 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-06 06:47:01,788 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 10 places, 5 transitions, 19 flow [2022-12-06 06:47:01,789 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 06:47:01,798 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [257] L1712-4-->L1715: Formula: (= 2 v_~pdev~0_23) InVars {} OutVars{~pdev~0=v_~pdev~0_23, ULTIMATE.start_module_init_#t~pre33#1=|v_ULTIMATE.start_module_init_#t~pre33#1_11|, ULTIMATE.start_module_init_#t~nondet34#1=|v_ULTIMATE.start_module_init_#t~nondet34#1_5|} AuxVars[] AssignedVars[~pdev~0, ULTIMATE.start_module_init_#t~pre33#1, ULTIMATE.start_module_init_#t~nondet34#1] and [280] $Ultimate##0-->thread1EXIT: Formula: (let ((.cse0 (select |v_#pthreadsMutex_46| |v_~#mutex~0.base_32|))) (and (= |v_#pthreadsMutex_45| (store |v_#pthreadsMutex_46| |v_~#mutex~0.base_32| (store .cse0 |v_~#mutex~0.offset_32| 0))) (= |v_thread1Thread1of1ForFork0_#res.offset_19| 0) (= 6 v_~pdev~0_49) (= |v_thread1Thread1of1ForFork0_#in~arg.base_5| v_thread1Thread1of1ForFork0_~arg.base_5) (= |v_thread1Thread1of1ForFork0_#res.base_19| 0) (= (select .cse0 |v_~#mutex~0.offset_32|) 0) (= |v_thread1Thread1of1ForFork0_#in~arg.offset_5| v_thread1Thread1of1ForFork0_~arg.offset_5))) InVars {#pthreadsMutex=|v_#pthreadsMutex_46|, thread1Thread1of1ForFork0_#in~arg.base=|v_thread1Thread1of1ForFork0_#in~arg.base_5|, ~#mutex~0.base=|v_~#mutex~0.base_32|, ~#mutex~0.offset=|v_~#mutex~0.offset_32|, thread1Thread1of1ForFork0_#in~arg.offset=|v_thread1Thread1of1ForFork0_#in~arg.offset_5|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_45|, thread1Thread1of1ForFork0_#in~arg.base=|v_thread1Thread1of1ForFork0_#in~arg.base_5|, thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_19|, ~#mutex~0.base=|v_~#mutex~0.base_32|, ~pdev~0=v_~pdev~0_49, thread1Thread1of1ForFork0_~arg.offset=v_thread1Thread1of1ForFork0_~arg.offset_5, thread1Thread1of1ForFork0_~arg.base=v_thread1Thread1of1ForFork0_~arg.base_5, ~#mutex~0.offset=|v_~#mutex~0.offset_32|, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_19|, thread1Thread1of1ForFork0_#in~arg.offset=|v_thread1Thread1of1ForFork0_#in~arg.offset_5|, thread1Thread1of1ForFork0_#t~nondet31=|v_thread1Thread1of1ForFork0_#t~nondet31_17|} AuxVars[] AssignedVars[#pthreadsMutex, thread1Thread1of1ForFork0_#res.base, ~pdev~0, thread1Thread1of1ForFork0_~arg.offset, thread1Thread1of1ForFork0_~arg.base, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_#t~nondet31] [2022-12-06 06:47:01,863 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [324] L1712-4-->thread1EXIT: Formula: (let ((.cse0 (select |v_#pthreadsMutex_114| |v_~#mutex~0.base_82|))) (and (= (select .cse0 |v_~#mutex~0.offset_82|) 0) (= |v_thread1Thread1of1ForFork0_#in~arg.base_21| v_thread1Thread1of1ForFork0_~arg.base_21) (= (store |v_#pthreadsMutex_114| |v_~#mutex~0.base_82| (store .cse0 |v_~#mutex~0.offset_82| 0)) |v_#pthreadsMutex_113|) (= 6 v_~pdev~0_129) (= |v_thread1Thread1of1ForFork0_#res.offset_35| 0) (= |v_thread1Thread1of1ForFork0_#res.base_35| 0) (= |v_thread1Thread1of1ForFork0_#in~arg.offset_21| v_thread1Thread1of1ForFork0_~arg.offset_21))) InVars {#pthreadsMutex=|v_#pthreadsMutex_114|, thread1Thread1of1ForFork0_#in~arg.base=|v_thread1Thread1of1ForFork0_#in~arg.base_21|, ~#mutex~0.base=|v_~#mutex~0.base_82|, ~#mutex~0.offset=|v_~#mutex~0.offset_82|, thread1Thread1of1ForFork0_#in~arg.offset=|v_thread1Thread1of1ForFork0_#in~arg.offset_21|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_113|, thread1Thread1of1ForFork0_#in~arg.base=|v_thread1Thread1of1ForFork0_#in~arg.base_21|, thread1Thread1of1ForFork0_#res.base=|v_thread1Thread1of1ForFork0_#res.base_35|, ~#mutex~0.base=|v_~#mutex~0.base_82|, thread1Thread1of1ForFork0_~arg.offset=v_thread1Thread1of1ForFork0_~arg.offset_21, ULTIMATE.start_module_init_#t~pre33#1=|v_ULTIMATE.start_module_init_#t~pre33#1_51|, ~#mutex~0.offset=|v_~#mutex~0.offset_82|, thread1Thread1of1ForFork0_#res.offset=|v_thread1Thread1of1ForFork0_#res.offset_35|, ~pdev~0=v_~pdev~0_129, thread1Thread1of1ForFork0_~arg.base=v_thread1Thread1of1ForFork0_~arg.base_21, ULTIMATE.start_module_init_#t~nondet34#1=|v_ULTIMATE.start_module_init_#t~nondet34#1_37|, thread1Thread1of1ForFork0_#in~arg.offset=|v_thread1Thread1of1ForFork0_#in~arg.offset_21|, thread1Thread1of1ForFork0_#t~nondet31=|v_thread1Thread1of1ForFork0_#t~nondet31_33|} AuxVars[] AssignedVars[#pthreadsMutex, thread1Thread1of1ForFork0_#res.base, thread1Thread1of1ForFork0_~arg.offset, ~pdev~0, ULTIMATE.start_module_init_#t~pre33#1, thread1Thread1of1ForFork0_~arg.base, ULTIMATE.start_module_init_#t~nondet34#1, thread1Thread1of1ForFork0_#res.offset, thread1Thread1of1ForFork0_#t~nondet31] and [186] L1715-->ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= |v_ULTIMATE.start_ldv_assert_#in~expression#1_13| (ite (= 2 v_~pdev~0_15) 1 0)) (= |v_ULTIMATE.start_ldv_assert_~expression#1_29| 0) (= |v_ULTIMATE.start_ldv_assert_~expression#1_29| |v_ULTIMATE.start_ldv_assert_#in~expression#1_13|)) InVars {~pdev~0=v_~pdev~0_15} OutVars{ULTIMATE.start_ldv_assert_~expression#1=|v_ULTIMATE.start_ldv_assert_~expression#1_29|, ~pdev~0=v_~pdev~0_15, ULTIMATE.start_ldv_assert_#in~expression#1=|v_ULTIMATE.start_ldv_assert_#in~expression#1_13|} AuxVars[] AssignedVars[ULTIMATE.start_ldv_assert_~expression#1, ULTIMATE.start_ldv_assert_#in~expression#1] [2022-12-06 06:47:01,946 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 06:47:01,947 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 163 [2022-12-06 06:47:01,948 INFO L495 AbstractCegarLoop]: Abstraction has has 8 places, 3 transitions, 13 flow [2022-12-06 06:47:01,948 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) [2022-12-06 06:47:01,948 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:47:01,948 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-06 06:47:01,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 06:47:01,948 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-06 06:47:01,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:47:01,949 INFO L85 PathProgramCache]: Analyzing trace with hash 347153, now seen corresponding path program 1 times [2022-12-06 06:47:01,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:47:01,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531448065] [2022-12-06 06:47:01,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:47:01,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:47:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 06:47:01,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 06:47:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 06:47:02,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 06:47:02,062 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 06:47:02,063 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 06:47:02,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-06 06:47:02,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-12-06 06:47:02,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-12-06 06:47:02,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 06:47:02,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 06:47:02,067 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-06 06:47:02,073 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 06:47:02,073 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 06:47:02,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:47:02 BasicIcfg [2022-12-06 06:47:02,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 06:47:02,104 INFO L158 Benchmark]: Toolchain (without parser) took 5096.18ms. Allocated memory was 188.7MB in the beginning and 244.3MB in the end (delta: 55.6MB). Free memory was 160.7MB in the beginning and 120.0MB in the end (delta: 40.7MB). Peak memory consumption was 97.2MB. Max. memory is 8.0GB. [2022-12-06 06:47:02,104 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory was 165.4MB in the beginning and 165.3MB in the end (delta: 97.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 06:47:02,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 698.63ms. Allocated memory is still 188.7MB. Free memory was 160.7MB in the beginning and 138.8MB in the end (delta: 22.0MB). Peak memory consumption was 40.7MB. Max. memory is 8.0GB. [2022-12-06 06:47:02,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.26ms. Allocated memory is still 188.7MB. Free memory was 138.8MB in the beginning and 135.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 06:47:02,105 INFO L158 Benchmark]: Boogie Preprocessor took 49.02ms. Allocated memory is still 188.7MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 06:47:02,108 INFO L158 Benchmark]: RCFGBuilder took 495.54ms. Allocated memory is still 188.7MB. Free memory was 133.5MB in the beginning and 112.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-06 06:47:02,108 INFO L158 Benchmark]: TraceAbstraction took 3774.70ms. Allocated memory was 188.7MB in the beginning and 244.3MB in the end (delta: 55.6MB). Free memory was 112.0MB in the beginning and 120.0MB in the end (delta: -8.0MB). Peak memory consumption was 49.2MB. Max. memory is 8.0GB. [2022-12-06 06:47:02,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory was 165.4MB in the beginning and 165.3MB in the end (delta: 97.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 698.63ms. Allocated memory is still 188.7MB. Free memory was 160.7MB in the beginning and 138.8MB in the end (delta: 22.0MB). Peak memory consumption was 40.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.26ms. Allocated memory is still 188.7MB. Free memory was 138.8MB in the beginning and 135.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.02ms. Allocated memory is still 188.7MB. Free memory was 135.6MB in the beginning and 133.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 495.54ms. Allocated memory is still 188.7MB. Free memory was 133.5MB in the beginning and 112.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 3774.70ms. Allocated memory was 188.7MB in the beginning and 244.3MB in the end (delta: 55.6MB). Free memory was 112.0MB in the beginning and 120.0MB in the end (delta: -8.0MB). Peak memory consumption was 49.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 80 PlacesBefore, 15 PlacesAfterwards, 77 TransitionsBefore, 11 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 50 TrivialYvCompositions, 16 ConcurrentYvCompositions, 1 ChoiceCompositions, 68 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 116, independent: 105, independent conditional: 105, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 116, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 116, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 116, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 102, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 102, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 116, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 102, unknown conditional: 0, unknown unconditional: 102] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 162, Positive conditional cache size: 0, Positive unconditional cache size: 162, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 8 PlacesBefore, 8 PlacesAfterwards, 6 TransitionsBefore, 6 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 2, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 10 PlacesBefore, 8 PlacesAfterwards, 5 TransitionsBefore, 3 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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 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}] [L1714] 0 pdev = 2 [L1702] 0 pdev = 6 [L1705] 0 return 0; [L1717] CALL 0 ldv_assert(pdev==2) [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: 3.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, 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=28occurred 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, 8 NumberOfCodeBlocks, 8 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! [2022-12-06 06:47:02,148 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...