/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/weaver/popl20-difference-det.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 07:37:42,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 07:37:42,433 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 07:37:42,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 07:37:42,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 07:37:42,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 07:37:42,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 07:37:42,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 07:37:42,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 07:37:42,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 07:37:42,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 07:37:42,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 07:37:42,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 07:37:42,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 07:37:42,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 07:37:42,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 07:37:42,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 07:37:42,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 07:37:42,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 07:37:42,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 07:37:42,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 07:37:42,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 07:37:42,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 07:37:42,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 07:37:42,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 07:37:42,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 07:37:42,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 07:37:42,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 07:37:42,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 07:37:42,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 07:37:42,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 07:37:42,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 07:37:42,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 07:37:42,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 07:37:42,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 07:37:42,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 07:37:42,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 07:37:42,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 07:37:42,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 07:37:42,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 07:37:42,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 07:37:42,504 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 07:37:42,527 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 07:37:42,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 07:37:42,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 07:37:42,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 07:37:42,529 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 07:37:42,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 07:37:42,529 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 07:37:42,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 07:37:42,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 07:37:42,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 07:37:42,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 07:37:42,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 07:37:42,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 07:37:42,531 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 07:37:42,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 07:37:42,531 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 07:37:42,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 07:37:42,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 07:37:42,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 07:37:42,531 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 07:37:42,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 07:37:42,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:37:42,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 07:37:42,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 07:37:42,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 07:37:42,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 07:37:42,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 07:37:42,532 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 07:37:42,533 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 07:37:42,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 07:37:42,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 07:37:42,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 07:37:42,894 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 07:37:42,894 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 07:37:42,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c [2022-12-06 07:37:43,958 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 07:37:44,137 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 07:37:44,137 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c [2022-12-06 07:37:44,149 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/723e0c26d/780e01f869f140a0b0cb9cf8f2159120/FLAG8b3ac3155 [2022-12-06 07:37:44,162 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/723e0c26d/780e01f869f140a0b0cb9cf8f2159120 [2022-12-06 07:37:44,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 07:37:44,165 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 07:37:44,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 07:37:44,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 07:37:44,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 07:37:44,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aefd5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44, skipping insertion in model container [2022-12-06 07:37:44,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 07:37:44,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 07:37:44,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:37:44,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:37:44,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:37:44,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:37:44,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:37:44,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:37:44,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:37:44,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:37:44,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c[2507,2520] [2022-12-06 07:37:44,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:37:44,337 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 07:37:44,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:37:44,351 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:37:44,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:37:44,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:37:44,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:37:44,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:37:44,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 07:37:44,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 07:37:44,373 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c[2507,2520] [2022-12-06 07:37:44,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:37:44,382 INFO L208 MainTranslator]: Completed translation [2022-12-06 07:37:44,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44 WrapperNode [2022-12-06 07:37:44,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 07:37:44,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 07:37:44,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 07:37:44,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 07:37:44,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,425 INFO L138 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 120 [2022-12-06 07:37:44,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 07:37:44,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 07:37:44,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 07:37:44,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 07:37:44,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,453 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 07:37:44,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 07:37:44,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 07:37:44,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 07:37:44,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (1/1) ... [2022-12-06 07:37:44,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:37:44,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:37:44,513 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 07:37:44,531 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 07:37:44,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 07:37:44,560 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 07:37:44,560 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 07:37:44,560 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 07:37:44,560 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 07:37:44,560 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 07:37:44,560 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 07:37:44,560 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 07:37:44,561 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 07:37:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 07:37:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 07:37:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 07:37:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 07:37:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 07:37:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 07:37:44,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 07:37:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 07:37:44,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 07:37:44,563 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 07:37:44,625 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 07:37:44,627 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 07:37:44,791 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 07:37:44,832 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 07:37:44,832 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-06 07:37:44,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:37:44 BoogieIcfgContainer [2022-12-06 07:37:44,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 07:37:44,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 07:37:44,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 07:37:44,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 07:37:44,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:37:44" (1/3) ... [2022-12-06 07:37:44,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c70129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:37:44, skipping insertion in model container [2022-12-06 07:37:44,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:37:44" (2/3) ... [2022-12-06 07:37:44,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c70129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:37:44, skipping insertion in model container [2022-12-06 07:37:44,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:37:44" (3/3) ... [2022-12-06 07:37:44,839 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-difference-det.wvr.c [2022-12-06 07:37:44,851 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 07:37:44,851 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 07:37:44,851 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 07:37:44,936 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-06 07:37:44,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 123 transitions, 278 flow [2022-12-06 07:37:45,028 INFO L130 PetriNetUnfolder]: 9/119 cut-off events. [2022-12-06 07:37:45,028 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 07:37:45,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 119 events. 9/119 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-12-06 07:37:45,034 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 123 transitions, 278 flow [2022-12-06 07:37:45,037 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 111 places, 107 transitions, 238 flow [2022-12-06 07:37:45,038 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:37:45,050 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 107 transitions, 238 flow [2022-12-06 07:37:45,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 107 transitions, 238 flow [2022-12-06 07:37:45,092 INFO L130 PetriNetUnfolder]: 9/107 cut-off events. [2022-12-06 07:37:45,093 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 07:37:45,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 107 events. 9/107 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 93 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2022-12-06 07:37:45,097 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 107 transitions, 238 flow [2022-12-06 07:37:45,097 INFO L188 LiptonReduction]: Number of co-enabled transitions 2520 [2022-12-06 07:37:47,897 INFO L203 LiptonReduction]: Total number of compositions: 78 [2022-12-06 07:37:47,908 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 07:37:47,913 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;@6484a08b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 07:37:47,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 07:37:47,918 INFO L130 PetriNetUnfolder]: 4/28 cut-off events. [2022-12-06 07:37:47,918 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 07:37:47,918 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:37:47,919 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:37:47,919 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 07:37:47,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:37:47,922 INFO L85 PathProgramCache]: Analyzing trace with hash 351158390, now seen corresponding path program 1 times [2022-12-06 07:37:47,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:37:47,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565881419] [2022-12-06 07:37:47,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:37:47,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:37:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:37:48,272 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 07:37:48,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:37:48,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565881419] [2022-12-06 07:37:48,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565881419] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:37:48,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:37:48,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 07:37:48,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720100974] [2022-12-06 07:37:48,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:37:48,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:37:48,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:37:48,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:37:48,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:37:48,297 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 29 [2022-12-06 07:37:48,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 07:37:48,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:37:48,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 29 [2022-12-06 07:37:48,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:37:48,499 INFO L130 PetriNetUnfolder]: 1537/1954 cut-off events. [2022-12-06 07:37:48,499 INFO L131 PetriNetUnfolder]: For 141/141 co-relation queries the response was YES. [2022-12-06 07:37:48,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4056 conditions, 1954 events. 1537/1954 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6328 event pairs, 141 based on Foata normal form. 1/1139 useless extension candidates. Maximal degree in co-relation 3091. Up to 1733 conditions per place. [2022-12-06 07:37:48,509 INFO L137 encePairwiseOnDemand]: 23/29 looper letters, 41 selfloop transitions, 5 changer transitions 1/51 dead transitions. [2022-12-06 07:37:48,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 241 flow [2022-12-06 07:37:48,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:37:48,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:37:48,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2022-12-06 07:37:48,517 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6896551724137931 [2022-12-06 07:37:48,518 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 82 flow. Second operand 3 states and 60 transitions. [2022-12-06 07:37:48,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 241 flow [2022-12-06 07:37:48,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 51 transitions, 211 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-06 07:37:48,523 INFO L231 Difference]: Finished difference. Result has 33 places, 33 transitions, 99 flow [2022-12-06 07:37:48,524 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=33, PETRI_TRANSITIONS=33} [2022-12-06 07:37:48,526 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, -5 predicate places. [2022-12-06 07:37:48,526 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:37:48,527 INFO L89 Accepts]: Start accepts. Operand has 33 places, 33 transitions, 99 flow [2022-12-06 07:37:48,529 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:37:48,529 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:37:48,529 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 33 transitions, 99 flow [2022-12-06 07:37:48,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 33 transitions, 99 flow [2022-12-06 07:37:48,536 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([378] thread3EXIT-->L95-2: Formula: (and (= v_thread3Thread1of1ForFork3_thidvar3_4 0) (= v_thread3Thread1of1ForFork3_thidvar2_4 0) (= v_thread3Thread1of1ForFork3_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem21#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) (= v_thread3Thread1of1ForFork3_thidvar1_4 0)) InVars {thread3Thread1of1ForFork3_thidvar0=v_thread3Thread1of1ForFork3_thidvar0_4, thread3Thread1of1ForFork3_thidvar2=v_thread3Thread1of1ForFork3_thidvar2_4, thread3Thread1of1ForFork3_thidvar1=v_thread3Thread1of1ForFork3_thidvar1_4, thread3Thread1of1ForFork3_thidvar3=v_thread3Thread1of1ForFork3_thidvar3_4, ULTIMATE.start_main_#t~mem21#1=|v_ULTIMATE.start_main_#t~mem21#1_5|} OutVars{thread3Thread1of1ForFork3_thidvar0=v_thread3Thread1of1ForFork3_thidvar0_4, thread3Thread1of1ForFork3_thidvar2=v_thread3Thread1of1ForFork3_thidvar2_4, thread3Thread1of1ForFork3_thidvar1=v_thread3Thread1of1ForFork3_thidvar1_4, thread3Thread1of1ForFork3_thidvar3=v_thread3Thread1of1ForFork3_thidvar3_4, ULTIMATE.start_main_#t~mem21#1=|v_ULTIMATE.start_main_#t~mem21#1_5|} AuxVars[] AssignedVars[][29], [130#true, Black: 132#(= ~counter2~0 ~counter1~0), 85#$Ultimate##0true, 79#L95-2true]) [2022-12-06 07:37:48,536 INFO L382 tUnfolder$Statistics]: this new event has 21 ancestors and is not cut-off event [2022-12-06 07:37:48,536 INFO L385 tUnfolder$Statistics]: existing Event has 22 ancestors and is not cut-off event [2022-12-06 07:37:48,536 INFO L385 tUnfolder$Statistics]: existing Event has 23 ancestors and is not cut-off event [2022-12-06 07:37:48,536 INFO L385 tUnfolder$Statistics]: existing Event has 21 ancestors and is not cut-off event [2022-12-06 07:37:48,537 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([379] thread4EXIT-->L96-2: Formula: (and (= 0 v_thread4Thread1of1ForFork1_thidvar3_4) (= 0 v_thread4Thread1of1ForFork1_thidvar4_4) (= 0 v_thread4Thread1of1ForFork1_thidvar2_4) (= 0 v_thread4Thread1of1ForFork1_thidvar1_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem22#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread4Thread1of1ForFork1_thidvar0_4)) InVars {thread4Thread1of1ForFork1_thidvar0=v_thread4Thread1of1ForFork1_thidvar0_4, thread4Thread1of1ForFork1_thidvar1=v_thread4Thread1of1ForFork1_thidvar1_4, thread4Thread1of1ForFork1_thidvar4=v_thread4Thread1of1ForFork1_thidvar4_4, ULTIMATE.start_main_#t~mem22#1=|v_ULTIMATE.start_main_#t~mem22#1_5|, thread4Thread1of1ForFork1_thidvar2=v_thread4Thread1of1ForFork1_thidvar2_4, thread4Thread1of1ForFork1_thidvar3=v_thread4Thread1of1ForFork1_thidvar3_4} OutVars{thread4Thread1of1ForFork1_thidvar0=v_thread4Thread1of1ForFork1_thidvar0_4, thread4Thread1of1ForFork1_thidvar1=v_thread4Thread1of1ForFork1_thidvar1_4, thread4Thread1of1ForFork1_thidvar4=v_thread4Thread1of1ForFork1_thidvar4_4, ULTIMATE.start_main_#t~mem22#1=|v_ULTIMATE.start_main_#t~mem22#1_5|, thread4Thread1of1ForFork1_thidvar2=v_thread4Thread1of1ForFork1_thidvar2_4, thread4Thread1of1ForFork1_thidvar3=v_thread4Thread1of1ForFork1_thidvar3_4} AuxVars[] AssignedVars[][31], [130#true, Black: 132#(= ~counter2~0 ~counter1~0), 14#L96-2true]) [2022-12-06 07:37:48,537 INFO L382 tUnfolder$Statistics]: this new event has 25 ancestors and is not cut-off event [2022-12-06 07:37:48,537 INFO L385 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2022-12-06 07:37:48,537 INFO L385 tUnfolder$Statistics]: existing Event has 26 ancestors and is not cut-off event [2022-12-06 07:37:48,537 INFO L385 tUnfolder$Statistics]: existing Event has 27 ancestors and is not cut-off event [2022-12-06 07:37:48,539 INFO L130 PetriNetUnfolder]: 59/127 cut-off events. [2022-12-06 07:37:48,539 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:37:48,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 127 events. 59/127 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 333 event pairs, 6 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 155. Up to 66 conditions per place. [2022-12-06 07:37:48,540 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 33 transitions, 99 flow [2022-12-06 07:37:48,540 INFO L188 LiptonReduction]: Number of co-enabled transitions 368 [2022-12-06 07:37:48,541 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:37:48,542 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 16 [2022-12-06 07:37:48,542 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 33 transitions, 99 flow [2022-12-06 07:37:48,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 07:37:48,542 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:37:48,542 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:37:48,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 07:37:48,542 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-06 07:37:48,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:37:48,543 INFO L85 PathProgramCache]: Analyzing trace with hash -53156906, now seen corresponding path program 1 times [2022-12-06 07:37:48,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:37:48,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726054846] [2022-12-06 07:37:48,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:37:48,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:37:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:37:48,619 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:37:48,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:37:48,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726054846] [2022-12-06 07:37:48,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726054846] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:37:48,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:37:48,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 07:37:48,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443712308] [2022-12-06 07:37:48,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:37:48,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 07:37:48,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:37:48,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 07:37:48,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 07:37:48,621 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 29 [2022-12-06 07:37:48,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 33 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 07:37:48,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:37:48,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 29 [2022-12-06 07:37:48,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:37:48,935 INFO L130 PetriNetUnfolder]: 2426/3218 cut-off events. [2022-12-06 07:37:48,935 INFO L131 PetriNetUnfolder]: For 940/940 co-relation queries the response was YES. [2022-12-06 07:37:48,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7906 conditions, 3218 events. 2426/3218 cut-off events. For 940/940 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 13391 event pairs, 504 based on Foata normal form. 32/3232 useless extension candidates. Maximal degree in co-relation 1330. Up to 1571 conditions per place. [2022-12-06 07:37:48,948 INFO L137 encePairwiseOnDemand]: 24/29 looper letters, 84 selfloop transitions, 5 changer transitions 0/91 dead transitions. [2022-12-06 07:37:48,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 91 transitions, 452 flow [2022-12-06 07:37:48,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:37:48,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:37:48,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 88 transitions. [2022-12-06 07:37:48,964 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6068965517241379 [2022-12-06 07:37:48,964 INFO L175 Difference]: Start difference. First operand has 33 places, 33 transitions, 99 flow. Second operand 5 states and 88 transitions. [2022-12-06 07:37:48,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 91 transitions, 452 flow [2022-12-06 07:37:48,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 91 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 07:37:48,967 INFO L231 Difference]: Finished difference. Result has 39 places, 36 transitions, 129 flow [2022-12-06 07:37:48,967 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=129, PETRI_PLACES=39, PETRI_TRANSITIONS=36} [2022-12-06 07:37:48,967 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2022-12-06 07:37:48,968 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:37:48,968 INFO L89 Accepts]: Start accepts. Operand has 39 places, 36 transitions, 129 flow [2022-12-06 07:37:48,969 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:37:48,969 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:37:48,969 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 36 transitions, 129 flow [2022-12-06 07:37:48,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 36 transitions, 129 flow [2022-12-06 07:37:48,976 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([379] thread4EXIT-->L96-2: Formula: (and (= 0 v_thread4Thread1of1ForFork1_thidvar3_4) (= 0 v_thread4Thread1of1ForFork1_thidvar4_4) (= 0 v_thread4Thread1of1ForFork1_thidvar2_4) (= 0 v_thread4Thread1of1ForFork1_thidvar1_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem22#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread4Thread1of1ForFork1_thidvar0_4)) InVars {thread4Thread1of1ForFork1_thidvar0=v_thread4Thread1of1ForFork1_thidvar0_4, thread4Thread1of1ForFork1_thidvar1=v_thread4Thread1of1ForFork1_thidvar1_4, thread4Thread1of1ForFork1_thidvar4=v_thread4Thread1of1ForFork1_thidvar4_4, ULTIMATE.start_main_#t~mem22#1=|v_ULTIMATE.start_main_#t~mem22#1_5|, thread4Thread1of1ForFork1_thidvar2=v_thread4Thread1of1ForFork1_thidvar2_4, thread4Thread1of1ForFork1_thidvar3=v_thread4Thread1of1ForFork1_thidvar3_4} OutVars{thread4Thread1of1ForFork1_thidvar0=v_thread4Thread1of1ForFork1_thidvar0_4, thread4Thread1of1ForFork1_thidvar1=v_thread4Thread1of1ForFork1_thidvar1_4, thread4Thread1of1ForFork1_thidvar4=v_thread4Thread1of1ForFork1_thidvar4_4, ULTIMATE.start_main_#t~mem22#1=|v_ULTIMATE.start_main_#t~mem22#1_5|, thread4Thread1of1ForFork1_thidvar2=v_thread4Thread1of1ForFork1_thidvar2_4, thread4Thread1of1ForFork1_thidvar3=v_thread4Thread1of1ForFork1_thidvar3_4} AuxVars[] AssignedVars[][34], [Black: 136#(= thread3Thread1of1ForFork3_~i~2 0), Black: 143#(and (= thread3Thread1of1ForFork3_~i~2 0) (= thread1Thread1of1ForFork0_~i~0 0) (<= ~M~0 0)), 140#(and (= thread3Thread1of1ForFork3_~i~2 0) (<= ~M~0 0)), Black: 132#(= ~counter2~0 ~counter1~0), 14#L96-2true]) [2022-12-06 07:37:48,976 INFO L382 tUnfolder$Statistics]: this new event has 25 ancestors and is not cut-off event [2022-12-06 07:37:48,976 INFO L385 tUnfolder$Statistics]: existing Event has 27 ancestors and is not cut-off event [2022-12-06 07:37:48,977 INFO L385 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2022-12-06 07:37:48,977 INFO L385 tUnfolder$Statistics]: existing Event has 26 ancestors and is not cut-off event [2022-12-06 07:37:48,978 INFO L130 PetriNetUnfolder]: 61/151 cut-off events. [2022-12-06 07:37:48,978 INFO L131 PetriNetUnfolder]: For 24/39 co-relation queries the response was YES. [2022-12-06 07:37:48,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 151 events. 61/151 cut-off events. For 24/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 496 event pairs, 6 based on Foata normal form. 5/137 useless extension candidates. Maximal degree in co-relation 232. Up to 68 conditions per place. [2022-12-06 07:37:48,979 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 36 transitions, 129 flow [2022-12-06 07:37:48,979 INFO L188 LiptonReduction]: Number of co-enabled transitions 446 [2022-12-06 07:37:49,050 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [468] $Ultimate##0-->thread3EXIT: Formula: (and (= v_thread3Thread1of1ForFork3_~i~2_31 0) (= |v_thread3Thread1of1ForFork3_#res.offset_11| 0) (not (< v_thread3Thread1of1ForFork3_~i~2_31 v_~M~0_53)) (= |v_thread3Thread1of1ForFork3_#res.base_11| 0)) InVars {~M~0=v_~M~0_53} OutVars{thread3Thread1of1ForFork3_#res.base=|v_thread3Thread1of1ForFork3_#res.base_11|, ~M~0=v_~M~0_53, thread3Thread1of1ForFork3_#res.offset=|v_thread3Thread1of1ForFork3_#res.offset_11|, thread3Thread1of1ForFork3_~i~2=v_thread3Thread1of1ForFork3_~i~2_31} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#res.base, thread3Thread1of1ForFork3_#res.offset, thread3Thread1of1ForFork3_~i~2] and [328] $Ultimate##0-->L41-4: Formula: (= v_thread1Thread1of1ForFork0_~i~0_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_~i~0=v_thread1Thread1of1ForFork0_~i~0_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_~i~0] [2022-12-06 07:37:49,074 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-06 07:37:49,075 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 07:37:49,076 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-06 07:37:49,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 07:37:49,076 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:125) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.refineAbstraction(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-06 07:37:49,078 INFO L158 Benchmark]: Toolchain (without parser) took 4913.56ms. Allocated memory was 180.4MB in the beginning and 266.3MB in the end (delta: 86.0MB). Free memory was 156.2MB in the beginning and 157.5MB in the end (delta: -1.3MB). Peak memory consumption was 85.1MB. Max. memory is 8.0GB. [2022-12-06 07:37:49,079 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 157.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 07:37:49,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.01ms. Allocated memory is still 180.4MB. Free memory was 155.9MB in the beginning and 144.1MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 07:37:49,079 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.76ms. Allocated memory is still 180.4MB. Free memory was 144.1MB in the beginning and 142.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:37:49,080 INFO L158 Benchmark]: Boogie Preprocessor took 29.26ms. Allocated memory is still 180.4MB. Free memory was 142.2MB in the beginning and 140.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:37:49,080 INFO L158 Benchmark]: RCFGBuilder took 378.65ms. Allocated memory is still 180.4MB. Free memory was 140.5MB in the beginning and 122.7MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-06 07:37:49,080 INFO L158 Benchmark]: TraceAbstraction took 4242.48ms. Allocated memory was 180.4MB in the beginning and 266.3MB in the end (delta: 86.0MB). Free memory was 122.0MB in the beginning and 157.5MB in the end (delta: -35.5MB). Peak memory consumption was 51.6MB. Max. memory is 8.0GB. [2022-12-06 07:37:49,082 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 180.4MB. Free memory is still 157.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 219.01ms. Allocated memory is still 180.4MB. Free memory was 155.9MB in the beginning and 144.1MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.76ms. Allocated memory is still 180.4MB. Free memory was 144.1MB in the beginning and 142.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.26ms. Allocated memory is still 180.4MB. Free memory was 142.2MB in the beginning and 140.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 378.65ms. Allocated memory is still 180.4MB. Free memory was 140.5MB in the beginning and 122.7MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 4242.48ms. Allocated memory was 180.4MB in the beginning and 266.3MB in the end (delta: 86.0MB). Free memory was 122.0MB in the beginning and 157.5MB in the end (delta: -35.5MB). Peak memory consumption was 51.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 111 PlacesBefore, 38 PlacesAfterwards, 107 TransitionsBefore, 29 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 32 TrivialYvCompositions, 41 ConcurrentYvCompositions, 5 ChoiceCompositions, 78 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1252, independent: 1248, independent conditional: 1248, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1252, independent: 1248, independent conditional: 0, independent unconditional: 1248, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1252, independent: 1248, independent conditional: 0, independent unconditional: 1248, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1252, independent: 1248, independent conditional: 0, independent unconditional: 1248, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1252, independent: 1248, independent conditional: 0, independent unconditional: 1248, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1252, independent: 1245, independent conditional: 0, independent unconditional: 1245, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1252, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1252, unknown conditional: 0, unknown unconditional: 1252] , Statistics on independence cache: Total cache size (in pairs): 1998, Positive cache size: 1994, Positive conditional cache size: 0, Positive unconditional cache size: 1994, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, 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, 33 PlacesBefore, 33 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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, 39 PlacesBefore, 37 PlacesAfterwards, 36 TransitionsBefore, 34 TransitionsAfterwards, 446 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 75, independent: 75, independent conditional: 75, 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: 75, independent: 75, independent conditional: 12, independent unconditional: 63, 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: 75, independent: 75, independent conditional: 12, independent unconditional: 63, 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: 75, independent: 75, independent conditional: 12, independent unconditional: 63, 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: 37, independent: 37, independent conditional: 6, independent unconditional: 31, 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: 37, independent: 37, independent conditional: 0, independent unconditional: 37, 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: 75, independent: 38, independent conditional: 6, independent unconditional: 32, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 37, unknown conditional: 6, unknown unconditional: 31] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 37, Positive conditional cache size: 6, Positive unconditional cache size: 31, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - ExceptionOrErrorResult: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word contains letters no longer in the reduced abstraction's alphabet!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:125) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-06 07:37:49,113 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...