/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/weaver/popl20-mult-4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 05:37:13,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 05:37:13,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 05:37:13,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 05:37:13,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 05:37:13,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 05:37:13,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 05:37:13,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 05:37:13,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 05:37:13,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 05:37:13,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 05:37:13,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 05:37:13,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 05:37:13,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 05:37:13,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 05:37:13,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 05:37:13,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 05:37:13,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 05:37:13,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 05:37:13,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 05:37:13,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 05:37:13,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 05:37:13,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 05:37:13,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 05:37:13,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 05:37:13,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 05:37:13,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 05:37:13,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 05:37:13,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 05:37:13,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 05:37:13,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 05:37:13,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 05:37:13,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 05:37:13,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 05:37:13,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 05:37:13,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 05:37:13,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 05:37:13,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 05:37:13,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 05:37:13,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 05:37:13,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 05:37:13,915 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 05:37:13,968 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 05:37:13,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 05:37:13,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 05:37:13,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 05:37:13,970 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 05:37:13,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 05:37:13,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 05:37:13,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 05:37:13,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 05:37:13,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 05:37:13,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 05:37:13,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 05:37:13,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 05:37:13,972 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 05:37:13,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 05:37:13,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 05:37:13,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 05:37:13,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 05:37:13,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 05:37:13,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 05:37:13,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 05:37:13,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:37:13,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 05:37:13,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 05:37:13,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 05:37:13,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 05:37:13,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 05:37:13,974 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 05:37:13,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 05:37:14,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 05:37:14,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 05:37:14,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 05:37:14,347 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 05:37:14,347 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 05:37:14,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2022-12-06 05:37:15,447 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 05:37:15,647 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 05:37:15,649 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2022-12-06 05:37:15,673 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7af21e3bd/e2aee138f9404b9dbc8e1c94449a67a3/FLAGf395c3529 [2022-12-06 05:37:15,688 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7af21e3bd/e2aee138f9404b9dbc8e1c94449a67a3 [2022-12-06 05:37:15,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 05:37:15,691 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 05:37:15,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 05:37:15,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 05:37:15,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 05:37:15,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b043e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15, skipping insertion in model container [2022-12-06 05:37:15,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 05:37:15,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 05:37:15,800 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:37:15,801 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:37:15,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:37:15,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:37:15,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:37:15,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:37:15,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:37:15,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:37:15,811 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-mult-4.wvr.c[2612,2625] [2022-12-06 05:37:15,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:37:15,819 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 05:37:15,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:37:15,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:37:15,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:37:15,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:37:15,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:37:15,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:37:15,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:37:15,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:37:15,835 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-mult-4.wvr.c[2612,2625] [2022-12-06 05:37:15,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:37:15,844 INFO L208 MainTranslator]: Completed translation [2022-12-06 05:37:15,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15 WrapperNode [2022-12-06 05:37:15,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 05:37:15,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 05:37:15,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 05:37:15,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 05:37:15,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,875 INFO L138 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 117 [2022-12-06 05:37:15,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 05:37:15,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 05:37:15,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 05:37:15,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 05:37:15,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,896 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 05:37:15,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 05:37:15,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 05:37:15,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 05:37:15,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (1/1) ... [2022-12-06 05:37:15,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:37:15,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:37:15,923 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 05:37:15,935 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 05:37:15,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 05:37:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 05:37:15,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 05:37:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 05:37:15,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 05:37:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 05:37:15,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 05:37:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-06 05:37:15,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-06 05:37:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 05:37:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 05:37:15,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 05:37:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 05:37:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 05:37:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 05:37:15,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 05:37:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 05:37:15,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 05:37:15,953 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 05:37:16,061 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 05:37:16,062 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 05:37:16,278 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 05:37:16,314 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 05:37:16,315 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-06 05:37:16,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:37:16 BoogieIcfgContainer [2022-12-06 05:37:16,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 05:37:16,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 05:37:16,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 05:37:16,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 05:37:16,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:37:15" (1/3) ... [2022-12-06 05:37:16,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6228bae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:37:16, skipping insertion in model container [2022-12-06 05:37:16,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:37:15" (2/3) ... [2022-12-06 05:37:16,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6228bae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:37:16, skipping insertion in model container [2022-12-06 05:37:16,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:37:16" (3/3) ... [2022-12-06 05:37:16,321 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2022-12-06 05:37:16,333 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 05:37:16,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 05:37:16,333 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 05:37:16,425 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-06 05:37:16,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 126 transitions, 284 flow [2022-12-06 05:37:16,525 INFO L130 PetriNetUnfolder]: 10/122 cut-off events. [2022-12-06 05:37:16,526 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 05:37:16,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 122 events. 10/122 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 95 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2022-12-06 05:37:16,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 126 transitions, 284 flow [2022-12-06 05:37:16,541 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 110 transitions, 244 flow [2022-12-06 05:37:16,542 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:37:16,570 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 110 transitions, 244 flow [2022-12-06 05:37:16,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 110 transitions, 244 flow [2022-12-06 05:37:16,618 INFO L130 PetriNetUnfolder]: 10/110 cut-off events. [2022-12-06 05:37:16,618 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 05:37:16,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 110 events. 10/110 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 97 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2022-12-06 05:37:16,622 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 110 transitions, 244 flow [2022-12-06 05:37:16,622 INFO L188 LiptonReduction]: Number of co-enabled transitions 2520 [2022-12-06 05:37:20,718 INFO L203 LiptonReduction]: Total number of compositions: 81 [2022-12-06 05:37:20,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 05:37:20,732 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;@2c70241b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 05:37:20,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-06 05:37:20,737 INFO L130 PetriNetUnfolder]: 4/28 cut-off events. [2022-12-06 05:37:20,737 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 05:37:20,737 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:37:20,737 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 05:37:20,737 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 05:37:20,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:37:20,740 INFO L85 PathProgramCache]: Analyzing trace with hash -514425640, now seen corresponding path program 1 times [2022-12-06 05:37:20,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:37:20,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19854148] [2022-12-06 05:37:20,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:37:20,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:37:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:37:21,174 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 05:37:21,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:37:21,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19854148] [2022-12-06 05:37:21,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19854148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:37:21,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:37:21,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 05:37:21,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454939930] [2022-12-06 05:37:21,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:37:21,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 05:37:21,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:37:21,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 05:37:21,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 05:37:21,201 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 29 [2022-12-06 05:37:21,202 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 05:37:21,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:37:21,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 29 [2022-12-06 05:37:21,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:37:21,443 INFO L130 PetriNetUnfolder]: 1343/1736 cut-off events. [2022-12-06 05:37:21,444 INFO L131 PetriNetUnfolder]: For 131/131 co-relation queries the response was YES. [2022-12-06 05:37:21,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3612 conditions, 1736 events. 1343/1736 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 5934 event pairs, 215 based on Foata normal form. 1/1045 useless extension candidates. Maximal degree in co-relation 2691. Up to 1515 conditions per place. [2022-12-06 05:37:21,458 INFO L137 encePairwiseOnDemand]: 23/29 looper letters, 39 selfloop transitions, 3 changer transitions 3/49 dead transitions. [2022-12-06 05:37:21,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 233 flow [2022-12-06 05:37:21,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 05:37:21,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 05:37:21,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2022-12-06 05:37:21,468 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6896551724137931 [2022-12-06 05:37:21,469 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 82 flow. Second operand 3 states and 60 transitions. [2022-12-06 05:37:21,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 233 flow [2022-12-06 05:37:21,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 49 transitions, 203 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-06 05:37:21,476 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 89 flow [2022-12-06 05:37:21,477 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=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=89, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2022-12-06 05:37:21,480 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, -5 predicate places. [2022-12-06 05:37:21,480 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:37:21,481 INFO L89 Accepts]: Start accepts. Operand has 33 places, 31 transitions, 89 flow [2022-12-06 05:37:21,484 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:37:21,484 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:37:21,484 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 31 transitions, 89 flow [2022-12-06 05:37:21,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 31 transitions, 89 flow [2022-12-06 05:37:21,502 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([372] thread3EXIT-->L97-2: Formula: (and (= v_thread3Thread1of1ForFork3_thidvar3_4 0) (= v_thread3Thread1of1ForFork3_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem17#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) (= v_thread3Thread1of1ForFork3_thidvar2_4 0) (= 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~mem17#1=|v_ULTIMATE.start_main_#t~mem17#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~mem17#1=|v_ULTIMATE.start_main_#t~mem17#1_5|} AuxVars[] AssignedVars[][27], [112#L97-2true, 132#true, Black: 134#(= ~counter~0 0), 89#$Ultimate##0true]) [2022-12-06 05:37:21,502 INFO L382 tUnfolder$Statistics]: this new event has 21 ancestors and is not cut-off event [2022-12-06 05:37:21,502 INFO L385 tUnfolder$Statistics]: existing Event has 22 ancestors and is not cut-off event [2022-12-06 05:37:21,502 INFO L385 tUnfolder$Statistics]: existing Event has 22 ancestors and is not cut-off event [2022-12-06 05:37:21,503 INFO L385 tUnfolder$Statistics]: existing Event has 21 ancestors and is not cut-off event [2022-12-06 05:37:21,504 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([372] thread3EXIT-->L97-2: Formula: (and (= v_thread3Thread1of1ForFork3_thidvar3_4 0) (= v_thread3Thread1of1ForFork3_thidvar0_4 (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem17#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))))) (= v_thread3Thread1of1ForFork3_thidvar2_4 0) (= 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~mem17#1=|v_ULTIMATE.start_main_#t~mem17#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~mem17#1=|v_ULTIMATE.start_main_#t~mem17#1_5|} AuxVars[] AssignedVars[][27], [112#L97-2true, 132#true, Black: 134#(= ~counter~0 0), 41#L72-4true]) [2022-12-06 05:37:21,505 INFO L382 tUnfolder$Statistics]: this new event has 24 ancestors and is not cut-off event [2022-12-06 05:37:21,510 INFO L385 tUnfolder$Statistics]: existing Event has 25 ancestors and is not cut-off event [2022-12-06 05:37:21,510 INFO L385 tUnfolder$Statistics]: existing Event has 24 ancestors and is not cut-off event [2022-12-06 05:37:21,510 INFO L385 tUnfolder$Statistics]: existing Event has 24 ancestors and is not cut-off event [2022-12-06 05:37:21,512 INFO L130 PetriNetUnfolder]: 48/112 cut-off events. [2022-12-06 05:37:21,512 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 05:37:21,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 112 events. 48/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 300 event pairs, 6 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 122. Up to 52 conditions per place. [2022-12-06 05:37:21,513 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 31 transitions, 89 flow [2022-12-06 05:37:21,513 INFO L188 LiptonReduction]: Number of co-enabled transitions 316 [2022-12-06 05:37:21,515 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:37:21,517 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 37 [2022-12-06 05:37:21,517 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 89 flow [2022-12-06 05:37:21,517 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 05:37:21,517 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:37:21,517 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 05:37:21,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 05:37:21,518 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 05:37:21,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:37:21,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1434159477, now seen corresponding path program 1 times [2022-12-06 05:37:21,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:37:21,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55292930] [2022-12-06 05:37:21,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:37:21,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:37:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:37:21,682 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 05:37:21,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:37:21,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55292930] [2022-12-06 05:37:21,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55292930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:37:21,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:37:21,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 05:37:21,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448458037] [2022-12-06 05:37:21,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:37:21,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:37:21,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:37:21,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:37:21,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 05:37:21,685 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 29 [2022-12-06 05:37:21,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 89 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 05:37:21,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:37:21,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 29 [2022-12-06 05:37:21,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:37:21,995 INFO L130 PetriNetUnfolder]: 1929/2707 cut-off events. [2022-12-06 05:37:21,995 INFO L131 PetriNetUnfolder]: For 809/809 co-relation queries the response was YES. [2022-12-06 05:37:21,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6276 conditions, 2707 events. 1929/2707 cut-off events. For 809/809 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 12339 event pairs, 489 based on Foata normal form. 304/2957 useless extension candidates. Maximal degree in co-relation 2481. Up to 1349 conditions per place. [2022-12-06 05:37:22,006 INFO L137 encePairwiseOnDemand]: 22/29 looper letters, 74 selfloop transitions, 4 changer transitions 2/82 dead transitions. [2022-12-06 05:37:22,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 82 transitions, 384 flow [2022-12-06 05:37:22,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:37:22,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:37:22,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2022-12-06 05:37:22,009 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6344827586206897 [2022-12-06 05:37:22,009 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 89 flow. Second operand 5 states and 92 transitions. [2022-12-06 05:37:22,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 82 transitions, 384 flow [2022-12-06 05:37:22,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 82 transitions, 379 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 05:37:22,013 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 134 flow [2022-12-06 05:37:22,013 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=134, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2022-12-06 05:37:22,014 INFO L294 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2022-12-06 05:37:22,014 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:37:22,014 INFO L89 Accepts]: Start accepts. Operand has 39 places, 34 transitions, 134 flow [2022-12-06 05:37:22,016 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:37:22,016 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:37:22,016 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 34 transitions, 134 flow [2022-12-06 05:37:22,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 34 transitions, 134 flow [2022-12-06 05:37:22,027 INFO L380 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([437] L72-4-->L72-4: Formula: (and (not (= |v_thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1_9| 0)) (= (+ |v_thread4Thread1of1ForFork1_~i~3#1_26| 1) |v_thread4Thread1of1ForFork1_~i~3#1_25|) (< (mod |v_thread4Thread1of1ForFork1_~i~3#1_26| 4294967296) (mod v_~N~0_45 4294967296)) (= |v_thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1_9| (ite (< 0 (mod v_~counter~0_104 4294967296)) 1 0)) (= v_~counter~0_104 (+ v_~c~0_48 v_~counter~0_103)) (= |v_thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1_9| |v_thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1_9|)) InVars {~counter~0=v_~counter~0_104, ~c~0=v_~c~0_48, thread4Thread1of1ForFork1_~i~3#1=|v_thread4Thread1of1ForFork1_~i~3#1_26|, ~N~0=v_~N~0_45} OutVars{~counter~0=v_~counter~0_103, ~c~0=v_~c~0_48, thread4Thread1of1ForFork1_~i~3#1=|v_thread4Thread1of1ForFork1_~i~3#1_25|, thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1_9|, thread4Thread1of1ForFork1_#t~post4#1=|v_thread4Thread1of1ForFork1_#t~post4#1_17|, ~N~0=v_~N~0_45, thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1=|v_thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1_9|} AuxVars[] AssignedVars[~counter~0, thread4Thread1of1ForFork1_~i~3#1, thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1, thread4Thread1of1ForFork1_#t~post4#1, thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1][26], [136#true, Black: 138#(= |thread2Thread1of1ForFork2_~i~1#1| 0), 34#L51-4true, 106#L41-4true, Black: 144#(and (= |thread2Thread1of1ForFork2_~i~1#1| 0) (= thread1Thread1of1ForFork0_~i~0 0) (<= (+ ~N~0 (* (div thread1Thread1of1ForFork0_~i~0 4294967296) 4294967296)) (* (div ~N~0 4294967296) 4294967296))), 9#L94-4true, Black: 142#(and (<= 0 (+ (div (- ~N~0) 4294967296) (div ~N~0 4294967296))) (= |thread2Thread1of1ForFork2_~i~1#1| 0)), 39#L62-4true, Black: 134#(= ~counter~0 0), 41#L72-4true]) [2022-12-06 05:37:22,028 INFO L382 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2022-12-06 05:37:22,028 INFO L385 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2022-12-06 05:37:22,028 INFO L385 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2022-12-06 05:37:22,028 INFO L385 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2022-12-06 05:37:22,033 INFO L130 PetriNetUnfolder]: 49/165 cut-off events. [2022-12-06 05:37:22,034 INFO L131 PetriNetUnfolder]: For 96/134 co-relation queries the response was YES. [2022-12-06 05:37:22,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 165 events. 49/165 cut-off events. For 96/134 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 657 event pairs, 4 based on Foata normal form. 3/152 useless extension candidates. Maximal degree in co-relation 263. Up to 55 conditions per place. [2022-12-06 05:37:22,036 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 34 transitions, 134 flow [2022-12-06 05:37:22,036 INFO L188 LiptonReduction]: Number of co-enabled transitions 370 [2022-12-06 05:37:22,153 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [472] $Ultimate##0-->thread2EXIT: Formula: (and (not (< (mod |v_thread2Thread1of1ForFork2_~i~1#1_37| 4294967296) (mod v_~N~0_91 4294967296))) (= |v_thread2Thread1of1ForFork2_#res#1.base_11| 0) (= |v_thread2Thread1of1ForFork2_#res#1.offset_11| 0) (= |v_thread2Thread1of1ForFork2_~i~1#1_37| 0)) InVars {~N~0=v_~N~0_91} OutVars{thread2Thread1of1ForFork2_#res#1.offset=|v_thread2Thread1of1ForFork2_#res#1.offset_11|, thread2Thread1of1ForFork2_~i~1#1=|v_thread2Thread1of1ForFork2_~i~1#1_37|, ~N~0=v_~N~0_91, thread2Thread1of1ForFork2_#res#1.base=|v_thread2Thread1of1ForFork2_#res#1.base_11|} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_#res#1.offset, thread2Thread1of1ForFork2_~i~1#1, thread2Thread1of1ForFork2_#res#1.base] and [322] $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 05:37:22,186 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-06 05:37:22,188 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 05:37:22,189 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-06 05:37:22,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 05:37:22,189 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 05:37:22,196 INFO L158 Benchmark]: Toolchain (without parser) took 6501.23ms. Allocated memory was 185.6MB in the beginning and 269.5MB in the end (delta: 83.9MB). Free memory was 161.5MB in the beginning and 166.9MB in the end (delta: -5.4MB). Peak memory consumption was 78.4MB. Max. memory is 8.0GB. [2022-12-06 05:37:22,196 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory was 163.5MB in the beginning and 163.4MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 05:37:22,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.02ms. Allocated memory is still 185.6MB. Free memory was 161.5MB in the beginning and 149.4MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 05:37:22,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.30ms. Allocated memory is still 185.6MB. Free memory was 149.4MB in the beginning and 147.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 05:37:22,197 INFO L158 Benchmark]: Boogie Preprocessor took 22.36ms. Allocated memory is still 185.6MB. Free memory was 147.5MB in the beginning and 145.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 05:37:22,197 INFO L158 Benchmark]: RCFGBuilder took 417.88ms. Allocated memory is still 185.6MB. Free memory was 145.8MB in the beginning and 129.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-12-06 05:37:22,199 INFO L158 Benchmark]: TraceAbstraction took 5874.41ms. Allocated memory was 185.6MB in the beginning and 269.5MB in the end (delta: 83.9MB). Free memory was 128.4MB in the beginning and 166.9MB in the end (delta: -38.5MB). Peak memory consumption was 45.9MB. Max. memory is 8.0GB. [2022-12-06 05:37:22,203 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory was 163.5MB in the beginning and 163.4MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 153.02ms. Allocated memory is still 185.6MB. Free memory was 161.5MB in the beginning and 149.4MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.30ms. Allocated memory is still 185.6MB. Free memory was 149.4MB in the beginning and 147.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.36ms. Allocated memory is still 185.6MB. Free memory was 147.5MB in the beginning and 145.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 417.88ms. Allocated memory is still 185.6MB. Free memory was 145.8MB in the beginning and 129.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 5874.41ms. Allocated memory was 185.6MB in the beginning and 269.5MB in the end (delta: 83.9MB). Free memory was 128.4MB in the beginning and 166.9MB in the end (delta: -38.5MB). Peak memory consumption was 45.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 113 PlacesBefore, 38 PlacesAfterwards, 110 TransitionsBefore, 29 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 41 ConcurrentYvCompositions, 6 ChoiceCompositions, 81 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1305, independent: 1298, independent conditional: 1298, independent unconditional: 0, dependent: 7, dependent conditional: 7, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1305, independent: 1298, independent conditional: 0, independent unconditional: 1298, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1305, independent: 1298, independent conditional: 0, independent unconditional: 1298, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1305, independent: 1298, independent conditional: 0, independent unconditional: 1298, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1305, independent: 1298, independent conditional: 0, independent unconditional: 1298, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1305, independent: 1296, independent conditional: 0, independent unconditional: 1296, dependent: 9, dependent conditional: 0, dependent unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1305, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1305, unknown conditional: 0, unknown unconditional: 1305] , Statistics on independence cache: Total cache size (in pairs): 2091, Positive cache size: 2084, Positive conditional cache size: 0, Positive unconditional cache size: 2084, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, 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, 31 TransitionsBefore, 31 TransitionsAfterwards, 316 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: 0.2s, 39 PlacesBefore, 37 PlacesAfterwards, 34 TransitionsBefore, 32 TransitionsAfterwards, 370 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 48, independent: 48, independent conditional: 48, 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: 48, independent: 48, independent conditional: 4, independent unconditional: 44, 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: 48, independent: 48, independent conditional: 4, independent unconditional: 44, 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: 48, independent: 48, independent conditional: 4, independent unconditional: 44, 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: 30, independent: 30, independent conditional: 2, independent unconditional: 28, 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: 30, independent: 30, independent conditional: 0, independent unconditional: 30, 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: 48, independent: 18, independent conditional: 2, independent unconditional: 16, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 30, unknown conditional: 2, unknown unconditional: 28] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 2, Positive unconditional cache size: 28, 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 05:37:22,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...