/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-RepeatedSemanticLbeWithPredicates.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 04:36:27,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 04:36:27,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 04:36:27,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 04:36:27,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 04:36:27,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 04:36:27,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 04:36:27,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 04:36:27,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 04:36:27,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 04:36:27,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 04:36:27,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 04:36:27,773 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 04:36:27,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 04:36:27,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 04:36:27,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 04:36:27,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 04:36:27,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 04:36:27,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 04:36:27,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 04:36:27,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 04:36:27,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 04:36:27,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 04:36:27,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 04:36:27,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 04:36:27,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 04:36:27,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 04:36:27,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 04:36:27,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 04:36:27,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 04:36:27,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 04:36:27,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 04:36:27,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 04:36:27,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 04:36:27,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 04:36:27,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 04:36:27,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 04:36:27,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 04:36:27,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 04:36:27,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 04:36:27,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 04:36:27,793 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-RepeatedSemanticLbeWithPredicates.epf [2022-12-06 04:36:27,815 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 04:36:27,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 04:36:27,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 04:36:27,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 04:36:27,817 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 04:36:27,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 04:36:27,818 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 04:36:27,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 04:36:27,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 04:36:27,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 04:36:27,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 04:36:27,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 04:36:27,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 04:36:27,819 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 04:36:27,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 04:36:27,819 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 04:36:27,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 04:36:27,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 04:36:27,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 04:36:27,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 04:36:27,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 04:36:27,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:36:27,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 04:36:27,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 04:36:27,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 04:36:27,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 04:36:27,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 04:36:27,820 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 04:36:27,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 04:36:28,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 04:36:28,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 04:36:28,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 04:36:28,103 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 04:36:28,103 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 04:36:28,104 INFO L432 ainManager$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 04:36:29,198 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 04:36:29,422 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 04:36:29,422 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2022-12-06 04:36:29,434 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e776964b/179d7cce7f8c4fc99e02aa29e6e77316/FLAG72a530997 [2022-12-06 04:36:29,444 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e776964b/179d7cce7f8c4fc99e02aa29e6e77316 [2022-12-06 04:36:29,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 04:36:29,446 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 04:36:29,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 04:36:29,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 04:36:29,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 04:36:29,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:36:29" (1/1) ... [2022-12-06 04:36:29,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a52410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:29, skipping insertion in model container [2022-12-06 04:36:29,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:36:29" (1/1) ... [2022-12-06 04:36:29,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 04:36:29,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 04:36:30,097 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 04:36:30,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:36:30,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:36:30,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:36:30,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:36:30,114 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:36:30,115 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:36:30,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:36:30,133 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 04:36:30,171 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 04:36:30,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:36:30,172 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:36:30,175 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:36:30,175 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:36:30,176 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 04:36:30,177 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 04:36:30,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 04:36:30,274 INFO L208 MainTranslator]: Completed translation [2022-12-06 04:36:30,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30 WrapperNode [2022-12-06 04:36:30,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 04:36:30,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 04:36:30,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 04:36:30,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 04:36:30,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (1/1) ... [2022-12-06 04:36:30,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (1/1) ... [2022-12-06 04:36:30,327 INFO L138 Inliner]: procedures = 482, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2022-12-06 04:36:30,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 04:36:30,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 04:36:30,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 04:36:30,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 04:36:30,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (1/1) ... [2022-12-06 04:36:30,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (1/1) ... [2022-12-06 04:36:30,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (1/1) ... [2022-12-06 04:36:30,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (1/1) ... [2022-12-06 04:36:30,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (1/1) ... [2022-12-06 04:36:30,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (1/1) ... [2022-12-06 04:36:30,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (1/1) ... [2022-12-06 04:36:30,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (1/1) ... [2022-12-06 04:36:30,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 04:36:30,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 04:36:30,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 04:36:30,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 04:36:30,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (1/1) ... [2022-12-06 04:36:30,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 04:36:30,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 04:36:30,405 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 04:36:30,425 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 04:36:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 04:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 04:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 04:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 04:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 04:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 04:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 04:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 04:36:30,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 04:36:30,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 04:36:30,438 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 04:36:30,438 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 04:36:30,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 04:36:30,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 04:36:30,439 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 04:36:30,651 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 04:36:30,655 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 04:36:30,840 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 04:36:30,861 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 04:36:30,862 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 04:36:30,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:36:30 BoogieIcfgContainer [2022-12-06 04:36:30,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 04:36:30,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 04:36:30,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 04:36:30,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 04:36:30,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:36:29" (1/3) ... [2022-12-06 04:36:30,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7adafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:36:30, skipping insertion in model container [2022-12-06 04:36:30,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:36:30" (2/3) ... [2022-12-06 04:36:30,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7adafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:36:30, skipping insertion in model container [2022-12-06 04:36:30,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:36:30" (3/3) ... [2022-12-06 04:36:30,881 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2022-12-06 04:36:30,894 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 04:36:30,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-06 04:36:30,894 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 04:36:30,948 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 04:36:30,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 94 transitions, 196 flow [2022-12-06 04:36:31,018 INFO L130 PetriNetUnfolder]: 4/105 cut-off events. [2022-12-06 04:36:31,019 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:36:31,022 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 04:36:31,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 94 transitions, 196 flow [2022-12-06 04:36:31,026 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 77 transitions, 160 flow [2022-12-06 04:36:31,028 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:36:31,040 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 77 transitions, 160 flow [2022-12-06 04:36:31,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 77 transitions, 160 flow [2022-12-06 04:36:31,055 INFO L130 PetriNetUnfolder]: 1/77 cut-off events. [2022-12-06 04:36:31,055 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:36:31,055 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 04:36:31,056 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 77 transitions, 160 flow [2022-12-06 04:36:31,057 INFO L188 LiptonReduction]: Number of co-enabled transitions 182 [2022-12-06 04:36:31,122 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 04:36:31,124 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 04:36:31,128 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 04:36:31,128 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 04:36:31,473 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 04:36:31,474 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 04:36:31,475 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 04:36:31,476 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 04:36:32,066 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 04:36:32,068 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 04:36:32,070 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 04:36:32,070 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 04:36:32,231 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 04:36:32,232 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 04:36:32,233 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 04:36:32,234 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 04:36:33,284 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 04:36:33,285 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 04:36:33,286 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 04:36:33,287 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 04:36:33,828 INFO L203 LiptonReduction]: Total number of compositions: 68 [2022-12-06 04:36:33,847 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 04:36:33,852 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;@2e20a6a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 04:36:33,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 04:36:33,853 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-06 04:36:33,853 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:36:33,853 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:36:33,854 INFO L213 CegarLoopForPetriNet]: trace histogram [1] [2022-12-06 04:36:33,855 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 04:36:33,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:36:33,857 INFO L85 PathProgramCache]: Analyzing trace with hash 349, now seen corresponding path program 1 times [2022-12-06 04:36:33,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:36:33,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133158841] [2022-12-06 04:36:33,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:36:33,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:36:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:36:34,003 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 04:36:34,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:36:34,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133158841] [2022-12-06 04:36:34,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133158841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:36:34,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:36:34,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-06 04:36:34,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059231471] [2022-12-06 04:36:34,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:36:34,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-06 04:36:34,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:36:34,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-06 04:36:34,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-06 04:36:34,023 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 11 [2022-12-06 04:36:34,024 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 04:36:34,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:36:34,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 11 [2022-12-06 04:36:34,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:36:34,042 INFO L130 PetriNetUnfolder]: 3/14 cut-off events. [2022-12-06 04:36:34,042 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:36:34,043 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 04:36:34,043 INFO L137 encePairwiseOnDemand]: 8/11 looper letters, 5 selfloop transitions, 0 changer transitions 2/8 dead transitions. [2022-12-06 04:36:34,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 8 transitions, 36 flow [2022-12-06 04:36:34,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-06 04:36:34,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-06 04:36:34,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 12 transitions. [2022-12-06 04:36:34,050 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2022-12-06 04:36:34,051 INFO L175 Difference]: Start difference. First operand has 15 places, 11 transitions, 28 flow. Second operand 2 states and 12 transitions. [2022-12-06 04:36:34,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 8 transitions, 36 flow [2022-12-06 04:36:34,053 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 04:36:34,054 INFO L231 Difference]: Finished difference. Result has 11 places, 6 transitions, 13 flow [2022-12-06 04:36:34,055 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 04:36:34,057 INFO L294 CegarLoopForPetriNet]: 15 programPoint places, -4 predicate places. [2022-12-06 04:36:34,057 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:36:34,057 INFO L89 Accepts]: Start accepts. Operand has 11 places, 6 transitions, 13 flow [2022-12-06 04:36:34,059 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:36:34,059 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:36:34,059 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 11 places, 6 transitions, 13 flow [2022-12-06 04:36:34,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 8 places, 6 transitions, 13 flow [2022-12-06 04:36:34,062 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-06 04:36:34,062 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:36:34,062 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 04:36:34,062 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 8 places, 6 transitions, 13 flow [2022-12-06 04:36:34,062 INFO L188 LiptonReduction]: Number of co-enabled transitions 8 [2022-12-06 04:36:34,066 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 04:36:34,067 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 10 [2022-12-06 04:36:34,067 INFO L495 AbstractCegarLoop]: Abstraction has has 8 places, 6 transitions, 13 flow [2022-12-06 04:36:34,067 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 04:36:34,067 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:36:34,067 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-06 04:36:34,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 04:36:34,067 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 04:36:34,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:36:34,068 INFO L85 PathProgramCache]: Analyzing trace with hash 10759821, now seen corresponding path program 1 times [2022-12-06 04:36:34,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:36:34,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656377333] [2022-12-06 04:36:34,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:36:34,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:36:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 04:36:34,192 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 04:36:34,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 04:36:34,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656377333] [2022-12-06 04:36:34,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656377333] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 04:36:34,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 04:36:34,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 04:36:34,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962553128] [2022-12-06 04:36:34,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 04:36:34,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 04:36:34,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 04:36:34,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 04:36:34,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 04:36:34,195 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 6 [2022-12-06 04:36:34,195 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 04:36:34,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 04:36:34,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 6 [2022-12-06 04:36:34,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 04:36:34,211 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-06 04:36:34,211 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 04:36:34,211 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 04:36:34,211 INFO L137 encePairwiseOnDemand]: 3/6 looper letters, 3 selfloop transitions, 2 changer transitions 2/7 dead transitions. [2022-12-06 04:36:34,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 7 transitions, 27 flow [2022-12-06 04:36:34,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 04:36:34,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 04:36:34,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-12-06 04:36:34,212 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-12-06 04:36:34,213 INFO L175 Difference]: Start difference. First operand has 8 places, 6 transitions, 13 flow. Second operand 3 states and 10 transitions. [2022-12-06 04:36:34,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 7 transitions, 27 flow [2022-12-06 04:36:34,213 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 04:36:34,215 INFO L231 Difference]: Finished difference. Result has 11 places, 5 transitions, 19 flow [2022-12-06 04:36:34,215 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 04:36:34,216 INFO L294 CegarLoopForPetriNet]: 15 programPoint places, -4 predicate places. [2022-12-06 04:36:34,216 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 04:36:34,216 INFO L89 Accepts]: Start accepts. Operand has 11 places, 5 transitions, 19 flow [2022-12-06 04:36:34,216 INFO L95 Accepts]: Finished accepts. [2022-12-06 04:36:34,216 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 04:36:34,216 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 11 places, 5 transitions, 19 flow [2022-12-06 04:36:34,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 10 places, 5 transitions, 19 flow [2022-12-06 04:36:34,219 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-06 04:36:34,220 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 04:36:34,220 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 04:36:34,221 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 10 places, 5 transitions, 19 flow [2022-12-06 04:36:34,221 INFO L188 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-06 04:36:34,227 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 04:36:34,284 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 04:36:34,362 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 04:36:34,366 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 150 [2022-12-06 04:36:34,367 INFO L495 AbstractCegarLoop]: Abstraction has has 8 places, 3 transitions, 13 flow [2022-12-06 04:36:34,367 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 04:36:34,367 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 04:36:34,367 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-06 04:36:34,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 04:36:34,367 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 04:36:34,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 04:36:34,368 INFO L85 PathProgramCache]: Analyzing trace with hash 347153, now seen corresponding path program 1 times [2022-12-06 04:36:34,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 04:36:34,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952607659] [2022-12-06 04:36:34,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 04:36:34,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 04:36:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 04:36:34,397 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 04:36:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 04:36:34,434 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 04:36:34,434 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 04:36:34,435 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-06 04:36:34,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-06 04:36:34,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-12-06 04:36:34,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-12-06 04:36:34,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-06 04:36:34,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 04:36:34,438 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-06 04:36:34,442 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 04:36:34,442 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 04:36:34,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:36:34 BasicIcfg [2022-12-06 04:36:34,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 04:36:34,464 INFO L158 Benchmark]: Toolchain (without parser) took 5014.65ms. Allocated memory was 240.1MB in the beginning and 316.7MB in the end (delta: 76.5MB). Free memory was 195.5MB in the beginning and 145.8MB in the end (delta: 49.6MB). Peak memory consumption was 126.7MB. Max. memory is 8.0GB. [2022-12-06 04:36:34,464 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 240.1MB. Free memory is still 216.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 04:36:34,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 828.75ms. Allocated memory is still 240.1MB. Free memory was 195.5MB in the beginning and 138.8MB in the end (delta: 56.6MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. [2022-12-06 04:36:34,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.18ms. Allocated memory is still 240.1MB. Free memory was 138.8MB in the beginning and 136.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-06 04:36:34,465 INFO L158 Benchmark]: Boogie Preprocessor took 51.03ms. Allocated memory is still 240.1MB. Free memory was 135.7MB in the beginning and 133.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 04:36:34,465 INFO L158 Benchmark]: RCFGBuilder took 486.15ms. Allocated memory is still 240.1MB. Free memory was 133.6MB in the beginning and 112.1MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-06 04:36:34,465 INFO L158 Benchmark]: TraceAbstraction took 3591.98ms. Allocated memory was 240.1MB in the beginning and 316.7MB in the end (delta: 76.5MB). Free memory was 111.6MB in the beginning and 145.8MB in the end (delta: -34.2MB). Peak memory consumption was 43.9MB. Max. memory is 8.0GB. [2022-12-06 04:36:34,466 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 240.1MB. Free memory is still 216.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 828.75ms. Allocated memory is still 240.1MB. Free memory was 195.5MB in the beginning and 138.8MB in the end (delta: 56.6MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.18ms. Allocated memory is still 240.1MB. Free memory was 138.8MB in the beginning and 136.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 51.03ms. Allocated memory is still 240.1MB. Free memory was 135.7MB in the beginning and 133.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 486.15ms. Allocated memory is still 240.1MB. Free memory was 133.6MB in the beginning and 112.1MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 3591.98ms. Allocated memory was 240.1MB in the beginning and 316.7MB in the end (delta: 76.5MB). Free memory was 111.6MB in the beginning and 145.8MB in the end (delta: -34.2MB). Peak memory consumption was 43.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 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: 18, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 17, dependent conditional: 0, dependent unconditional: 17, 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: 3, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 0, dependent unconditional: 3, 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: 0.1s, 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: 3.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s 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 04:36:34,498 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...