/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-three-array-sum.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 05:42:12,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 05:42:12,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 05:42:12,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 05:42:12,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 05:42:12,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 05:42:12,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 05:42:12,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 05:42:12,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 05:42:12,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 05:42:12,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 05:42:12,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 05:42:12,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 05:42:12,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 05:42:12,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 05:42:12,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 05:42:12,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 05:42:12,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 05:42:12,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 05:42:12,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 05:42:12,895 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 05:42:12,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 05:42:12,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 05:42:12,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 05:42:12,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 05:42:12,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 05:42:12,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 05:42:12,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 05:42:12,902 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 05:42:12,903 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 05:42:12,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 05:42:12,904 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 05:42:12,905 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 05:42:12,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 05:42:12,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 05:42:12,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 05:42:12,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 05:42:12,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 05:42:12,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 05:42:12,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 05:42:12,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 05:42:12,910 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 05:42:12,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 05:42:12,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 05:42:12,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 05:42:12,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 05:42:12,944 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 05:42:12,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 05:42:12,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 05:42:12,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 05:42:12,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 05:42:12,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 05:42:12,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 05:42:12,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 05:42:12,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 05:42:12,946 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 05:42:12,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 05:42:12,947 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 05:42:12,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 05:42:12,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 05:42:12,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 05:42:12,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 05:42:12,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 05:42:12,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:42:12,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 05:42:12,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 05:42:12,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 05:42:12,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 05:42:12,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 05:42:12,949 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 05:42:12,950 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 05:42:13,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 05:42:13,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 05:42:13,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 05:42:13,330 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 05:42:13,330 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 05:42:13,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2022-12-06 05:42:14,568 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 05:42:14,782 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 05:42:14,783 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-sum.wvr.c [2022-12-06 05:42:14,788 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a9f83555/6611a5c957c344c7bf5fcf1de840d073/FLAGd845389d8 [2022-12-06 05:42:14,802 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a9f83555/6611a5c957c344c7bf5fcf1de840d073 [2022-12-06 05:42:14,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 05:42:14,805 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 05:42:14,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 05:42:14,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 05:42:14,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 05:42:14,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:14" (1/1) ... [2022-12-06 05:42:14,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed1d5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:14, skipping insertion in model container [2022-12-06 05:42:14,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:42:14" (1/1) ... [2022-12-06 05:42:14,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 05:42:14,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 05:42:14,949 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:14,950 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:14,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:14,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:14,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:14,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:14,959 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-three-array-sum.wvr.c[2691,2704] [2022-12-06 05:42:14,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:42:14,977 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 05:42:14,991 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:14,992 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:14,993 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:14,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:14,994 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 05:42:14,995 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 05:42:14,999 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-three-array-sum.wvr.c[2691,2704] [2022-12-06 05:42:15,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 05:42:15,015 INFO L208 MainTranslator]: Completed translation [2022-12-06 05:42:15,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15 WrapperNode [2022-12-06 05:42:15,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 05:42:15,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 05:42:15,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 05:42:15,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 05:42:15,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (1/1) ... [2022-12-06 05:42:15,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (1/1) ... [2022-12-06 05:42:15,073 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 150 [2022-12-06 05:42:15,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 05:42:15,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 05:42:15,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 05:42:15,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 05:42:15,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (1/1) ... [2022-12-06 05:42:15,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (1/1) ... [2022-12-06 05:42:15,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (1/1) ... [2022-12-06 05:42:15,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (1/1) ... [2022-12-06 05:42:15,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (1/1) ... [2022-12-06 05:42:15,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (1/1) ... [2022-12-06 05:42:15,120 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (1/1) ... [2022-12-06 05:42:15,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (1/1) ... [2022-12-06 05:42:15,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 05:42:15,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 05:42:15,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 05:42:15,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 05:42:15,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (1/1) ... [2022-12-06 05:42:15,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 05:42:15,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:42:15,156 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 05:42:15,185 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 05:42:15,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 05:42:15,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 05:42:15,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 05:42:15,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 05:42:15,203 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 05:42:15,203 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 05:42:15,203 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 05:42:15,204 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 05:42:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 05:42:15,204 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 05:42:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 05:42:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 05:42:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 05:42:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 05:42:15,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 05:42:15,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 05:42:15,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 05:42:15,206 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 05:42:15,360 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 05:42:15,362 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 05:42:15,642 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 05:42:15,673 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 05:42:15,674 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-06 05:42:15,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:15 BoogieIcfgContainer [2022-12-06 05:42:15,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 05:42:15,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 05:42:15,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 05:42:15,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 05:42:15,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:42:14" (1/3) ... [2022-12-06 05:42:15,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a08d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:15, skipping insertion in model container [2022-12-06 05:42:15,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:42:15" (2/3) ... [2022-12-06 05:42:15,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68a08d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:42:15, skipping insertion in model container [2022-12-06 05:42:15,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:42:15" (3/3) ... [2022-12-06 05:42:15,683 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-sum.wvr.c [2022-12-06 05:42:15,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 05:42:15,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 05:42:15,708 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 05:42:15,793 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 05:42:15,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 208 transitions, 440 flow [2022-12-06 05:42:15,960 INFO L130 PetriNetUnfolder]: 20/205 cut-off events. [2022-12-06 05:42:15,960 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 05:42:15,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 205 events. 20/205 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 143 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 166. Up to 3 conditions per place. [2022-12-06 05:42:15,969 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 208 transitions, 440 flow [2022-12-06 05:42:15,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 195 transitions, 408 flow [2022-12-06 05:42:15,978 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:16,002 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 195 transitions, 408 flow [2022-12-06 05:42:16,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 195 transitions, 408 flow [2022-12-06 05:42:16,078 INFO L130 PetriNetUnfolder]: 20/195 cut-off events. [2022-12-06 05:42:16,079 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 05:42:16,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 195 events. 20/195 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 142 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 166. Up to 3 conditions per place. [2022-12-06 05:42:16,086 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 195 transitions, 408 flow [2022-12-06 05:42:16,086 INFO L188 LiptonReduction]: Number of co-enabled transitions 1874 [2022-12-06 05:42:23,553 INFO L203 LiptonReduction]: Total number of compositions: 164 [2022-12-06 05:42:23,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 05:42:23,582 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;@789dee76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 05:42:23,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 05:42:23,588 INFO L130 PetriNetUnfolder]: 7/30 cut-off events. [2022-12-06 05:42:23,588 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 05:42:23,589 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:23,589 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] [2022-12-06 05:42:23,590 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 1 more)] === [2022-12-06 05:42:23,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:23,595 INFO L85 PathProgramCache]: Analyzing trace with hash -959111054, now seen corresponding path program 1 times [2022-12-06 05:42:23,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:23,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694872596] [2022-12-06 05:42:23,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:23,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:24,322 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 05:42:24,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:24,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694872596] [2022-12-06 05:42:24,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694872596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:42:24,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:42:24,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 05:42:24,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511444278] [2022-12-06 05:42:24,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:42:24,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 05:42:24,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:24,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 05:42:24,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 05:42:24,356 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 31 [2022-12-06 05:42:24,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 05:42:24,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:24,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 31 [2022-12-06 05:42:24,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:24,521 INFO L130 PetriNetUnfolder]: 739/989 cut-off events. [2022-12-06 05:42:24,522 INFO L131 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2022-12-06 05:42:24,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2052 conditions, 989 events. 739/989 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3495 event pairs, 116 based on Foata normal form. 1/577 useless extension candidates. Maximal degree in co-relation 1509. Up to 667 conditions per place. [2022-12-06 05:42:24,533 INFO L137 encePairwiseOnDemand]: 27/31 looper letters, 42 selfloop transitions, 3 changer transitions 1/49 dead transitions. [2022-12-06 05:42:24,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 49 transitions, 223 flow [2022-12-06 05:42:24,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 05:42:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 05:42:24,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2022-12-06 05:42:24,545 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6021505376344086 [2022-12-06 05:42:24,547 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 80 flow. Second operand 3 states and 56 transitions. [2022-12-06 05:42:24,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 49 transitions, 223 flow [2022-12-06 05:42:24,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 49 transitions, 201 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-06 05:42:24,553 INFO L231 Difference]: Finished difference. Result has 31 places, 33 transitions, 87 flow [2022-12-06 05:42:24,554 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=31, PETRI_TRANSITIONS=33} [2022-12-06 05:42:24,558 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2022-12-06 05:42:24,558 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:24,559 INFO L89 Accepts]: Start accepts. Operand has 31 places, 33 transitions, 87 flow [2022-12-06 05:42:24,561 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:24,561 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:24,562 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 33 transitions, 87 flow [2022-12-06 05:42:24,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 33 transitions, 87 flow [2022-12-06 05:42:24,569 INFO L130 PetriNetUnfolder]: 14/51 cut-off events. [2022-12-06 05:42:24,569 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 05:42:24,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 51 events. 14/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2022-12-06 05:42:24,570 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 33 transitions, 87 flow [2022-12-06 05:42:24,570 INFO L188 LiptonReduction]: Number of co-enabled transitions 256 [2022-12-06 05:42:24,579 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:42:24,581 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 23 [2022-12-06 05:42:24,581 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 33 transitions, 87 flow [2022-12-06 05:42:24,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 05:42:24,582 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:24,582 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] [2022-12-06 05:42:24,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 05:42:24,582 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 1 more)] === [2022-12-06 05:42:24,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:24,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1486541656, now seen corresponding path program 1 times [2022-12-06 05:42:24,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:24,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601489854] [2022-12-06 05:42:24,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:24,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:24,749 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 05:42:24,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:24,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601489854] [2022-12-06 05:42:24,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601489854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:42:24,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:42:24,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 05:42:24,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297348095] [2022-12-06 05:42:24,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:42:24,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:42:24,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:24,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:42:24,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 05:42:24,752 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 31 [2022-12-06 05:42:24,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 33 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 05:42:24,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:24,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 31 [2022-12-06 05:42:24,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:24,954 INFO L130 PetriNetUnfolder]: 1043/1481 cut-off events. [2022-12-06 05:42:24,955 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2022-12-06 05:42:24,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3263 conditions, 1481 events. 1043/1481 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6121 event pairs, 438 based on Foata normal form. 0/1124 useless extension candidates. Maximal degree in co-relation 1048. Up to 911 conditions per place. [2022-12-06 05:42:24,962 INFO L137 encePairwiseOnDemand]: 21/31 looper letters, 60 selfloop transitions, 10 changer transitions 0/72 dead transitions. [2022-12-06 05:42:24,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 72 transitions, 325 flow [2022-12-06 05:42:24,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:42:24,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:42:24,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 80 transitions. [2022-12-06 05:42:24,966 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2022-12-06 05:42:24,966 INFO L175 Difference]: Start difference. First operand has 31 places, 33 transitions, 87 flow. Second operand 5 states and 80 transitions. [2022-12-06 05:42:24,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 72 transitions, 325 flow [2022-12-06 05:42:24,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 72 transitions, 320 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 05:42:24,969 INFO L231 Difference]: Finished difference. Result has 37 places, 41 transitions, 154 flow [2022-12-06 05:42:24,969 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=154, PETRI_PLACES=37, PETRI_TRANSITIONS=41} [2022-12-06 05:42:24,970 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2022-12-06 05:42:24,970 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:24,970 INFO L89 Accepts]: Start accepts. Operand has 37 places, 41 transitions, 154 flow [2022-12-06 05:42:24,971 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:24,971 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:24,972 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 41 transitions, 154 flow [2022-12-06 05:42:24,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 41 transitions, 154 flow [2022-12-06 05:42:24,980 INFO L130 PetriNetUnfolder]: 18/87 cut-off events. [2022-12-06 05:42:24,980 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 05:42:24,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 87 events. 18/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 239 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 102. Up to 13 conditions per place. [2022-12-06 05:42:24,981 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 41 transitions, 154 flow [2022-12-06 05:42:24,981 INFO L188 LiptonReduction]: Number of co-enabled transitions 282 [2022-12-06 05:42:24,983 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:42:24,984 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 14 [2022-12-06 05:42:24,985 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 41 transitions, 154 flow [2022-12-06 05:42:24,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 05:42:24,985 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:24,986 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] [2022-12-06 05:42:24,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 05:42:24,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 05:42:24,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:24,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1535348125, now seen corresponding path program 1 times [2022-12-06 05:42:24,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:24,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472098082] [2022-12-06 05:42:24,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:24,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:25,097 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 05:42:25,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:25,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472098082] [2022-12-06 05:42:25,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472098082] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:42:25,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:42:25,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 05:42:25,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215108059] [2022-12-06 05:42:25,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:42:25,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:42:25,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:25,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:42:25,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-06 05:42:25,100 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 31 [2022-12-06 05:42:25,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 41 transitions, 154 flow. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 05:42:25,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:25,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 31 [2022-12-06 05:42:25,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:25,298 INFO L130 PetriNetUnfolder]: 882/1248 cut-off events. [2022-12-06 05:42:25,298 INFO L131 PetriNetUnfolder]: For 175/198 co-relation queries the response was YES. [2022-12-06 05:42:25,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2864 conditions, 1248 events. 882/1248 cut-off events. For 175/198 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4828 event pairs, 418 based on Foata normal form. 43/969 useless extension candidates. Maximal degree in co-relation 2370. Up to 1008 conditions per place. [2022-12-06 05:42:25,304 INFO L137 encePairwiseOnDemand]: 22/31 looper letters, 28 selfloop transitions, 6 changer transitions 30/66 dead transitions. [2022-12-06 05:42:25,305 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 66 transitions, 340 flow [2022-12-06 05:42:25,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:42:25,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:42:25,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 72 transitions. [2022-12-06 05:42:25,306 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4645161290322581 [2022-12-06 05:42:25,306 INFO L175 Difference]: Start difference. First operand has 37 places, 41 transitions, 154 flow. Second operand 5 states and 72 transitions. [2022-12-06 05:42:25,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 66 transitions, 340 flow [2022-12-06 05:42:25,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 66 transitions, 340 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-06 05:42:25,309 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 142 flow [2022-12-06 05:42:25,309 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=142, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2022-12-06 05:42:25,310 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2022-12-06 05:42:25,310 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:25,310 INFO L89 Accepts]: Start accepts. Operand has 43 places, 36 transitions, 142 flow [2022-12-06 05:42:25,313 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:25,313 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:25,313 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 36 transitions, 142 flow [2022-12-06 05:42:25,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 36 transitions, 142 flow [2022-12-06 05:42:25,320 INFO L130 PetriNetUnfolder]: 14/54 cut-off events. [2022-12-06 05:42:25,320 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 05:42:25,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 54 events. 14/54 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 83 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 71. Up to 10 conditions per place. [2022-12-06 05:42:25,321 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 36 transitions, 142 flow [2022-12-06 05:42:25,321 INFO L188 LiptonReduction]: Number of co-enabled transitions 256 [2022-12-06 05:42:25,322 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 05:42:25,323 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 13 [2022-12-06 05:42:25,323 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 142 flow [2022-12-06 05:42:25,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 05:42:25,323 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:25,323 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, 1] [2022-12-06 05:42:25,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 05:42:25,323 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 05:42:25,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:25,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1476160009, now seen corresponding path program 1 times [2022-12-06 05:42:25,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:25,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211322149] [2022-12-06 05:42:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:25,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:42:25,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:25,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211322149] [2022-12-06 05:42:25,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211322149] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 05:42:25,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476659591] [2022-12-06 05:42:25,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:25,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:42:25,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 05:42:25,445 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 05:42:25,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 05:42:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:25,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-06 05:42:25,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 05:42:25,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:42:25,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 05:42:25,742 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:42:25,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476659591] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-06 05:42:25,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-06 05:42:25,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-06 05:42:25,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967099872] [2022-12-06 05:42:25,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:42:25,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:42:25,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:25,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:42:25,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-06 05:42:25,744 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 31 [2022-12-06 05:42:25,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 05:42:25,744 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:25,744 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 31 [2022-12-06 05:42:25,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:25,935 INFO L130 PetriNetUnfolder]: 855/1180 cut-off events. [2022-12-06 05:42:25,936 INFO L131 PetriNetUnfolder]: For 319/319 co-relation queries the response was YES. [2022-12-06 05:42:25,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2867 conditions, 1180 events. 855/1180 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4367 event pairs, 237 based on Foata normal form. 0/973 useless extension candidates. Maximal degree in co-relation 2822. Up to 884 conditions per place. [2022-12-06 05:42:25,943 INFO L137 encePairwiseOnDemand]: 26/31 looper letters, 45 selfloop transitions, 4 changer transitions 0/51 dead transitions. [2022-12-06 05:42:25,943 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 51 transitions, 286 flow [2022-12-06 05:42:25,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 05:42:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 05:42:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2022-12-06 05:42:25,945 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.34838709677419355 [2022-12-06 05:42:25,945 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 142 flow. Second operand 5 states and 54 transitions. [2022-12-06 05:42:25,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 51 transitions, 286 flow [2022-12-06 05:42:25,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 51 transitions, 248 flow, removed 10 selfloop flow, removed 7 redundant places. [2022-12-06 05:42:25,950 INFO L231 Difference]: Finished difference. Result has 37 places, 37 transitions, 126 flow [2022-12-06 05:42:25,950 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=37, PETRI_TRANSITIONS=37} [2022-12-06 05:42:25,951 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2022-12-06 05:42:25,951 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:25,952 INFO L89 Accepts]: Start accepts. Operand has 37 places, 37 transitions, 126 flow [2022-12-06 05:42:25,953 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:25,953 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:25,953 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 37 transitions, 126 flow [2022-12-06 05:42:25,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 37 transitions, 126 flow [2022-12-06 05:42:25,963 INFO L130 PetriNetUnfolder]: 14/55 cut-off events. [2022-12-06 05:42:25,963 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 05:42:25,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 55 events. 14/55 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 66. Up to 10 conditions per place. [2022-12-06 05:42:25,964 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 37 transitions, 126 flow [2022-12-06 05:42:25,964 INFO L188 LiptonReduction]: Number of co-enabled transitions 288 [2022-12-06 05:42:27,305 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 05:42:27,306 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 1355 [2022-12-06 05:42:27,306 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 35 transitions, 116 flow [2022-12-06 05:42:27,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 05:42:27,307 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 05:42:27,307 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 05:42:27,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 05:42:27,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 05:42:27,519 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 05:42:27,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 05:42:27,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1662202074, now seen corresponding path program 1 times [2022-12-06 05:42:27,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 05:42:27,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013542717] [2022-12-06 05:42:27,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 05:42:27,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 05:42:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 05:42:27,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 05:42:27,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 05:42:27,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013542717] [2022-12-06 05:42:27,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013542717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 05:42:27,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 05:42:27,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 05:42:27,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567154039] [2022-12-06 05:42:27,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 05:42:27,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 05:42:27,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 05:42:27,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 05:42:27,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-06 05:42:27,654 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 31 [2022-12-06 05:42:27,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 05:42:27,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 05:42:27,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 31 [2022-12-06 05:42:27,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 05:42:27,840 INFO L130 PetriNetUnfolder]: 701/984 cut-off events. [2022-12-06 05:42:27,840 INFO L131 PetriNetUnfolder]: For 422/422 co-relation queries the response was YES. [2022-12-06 05:42:27,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2500 conditions, 984 events. 701/984 cut-off events. For 422/422 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3353 event pairs, 246 based on Foata normal form. 0/787 useless extension candidates. Maximal degree in co-relation 2465. Up to 639 conditions per place. [2022-12-06 05:42:27,845 INFO L137 encePairwiseOnDemand]: 27/31 looper letters, 45 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2022-12-06 05:42:27,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 50 transitions, 260 flow [2022-12-06 05:42:27,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 05:42:27,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 05:42:27,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 49 transitions. [2022-12-06 05:42:27,848 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3951612903225806 [2022-12-06 05:42:27,848 INFO L175 Difference]: Start difference. First operand has 35 places, 35 transitions, 116 flow. Second operand 4 states and 49 transitions. [2022-12-06 05:42:27,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 50 transitions, 260 flow [2022-12-06 05:42:27,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 50 transitions, 236 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-12-06 05:42:27,850 INFO L231 Difference]: Finished difference. Result has 36 places, 36 transitions, 119 flow [2022-12-06 05:42:27,850 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=119, PETRI_PLACES=36, PETRI_TRANSITIONS=36} [2022-12-06 05:42:27,853 INFO L294 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2022-12-06 05:42:27,853 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 05:42:27,853 INFO L89 Accepts]: Start accepts. Operand has 36 places, 36 transitions, 119 flow [2022-12-06 05:42:27,855 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:27,855 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 05:42:27,855 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 36 transitions, 119 flow [2022-12-06 05:42:27,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 36 transitions, 119 flow [2022-12-06 05:42:27,861 INFO L130 PetriNetUnfolder]: 13/50 cut-off events. [2022-12-06 05:42:27,861 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-06 05:42:27,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 50 events. 13/50 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 61. Up to 9 conditions per place. [2022-12-06 05:42:27,862 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 36 transitions, 119 flow [2022-12-06 05:42:27,862 INFO L188 LiptonReduction]: Number of co-enabled transitions 274 [2022-12-06 05:42:27,867 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-06 05:42:27,869 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 05:42:27,872 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-06 05:42:27,872 INFO L89 Accepts]: Start accepts. Operand has 36 places, 34 transitions, 105 flow [2022-12-06 05:42:27,873 INFO L95 Accepts]: Finished accepts. [2022-12-06 05:42:27,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-06 05:42:27,874 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 is no longer accepted by reduced abstraction! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:132) 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 05:42:27,878 INFO L158 Benchmark]: Toolchain (without parser) took 13072.62ms. Allocated memory was 181.4MB in the beginning and 332.4MB in the end (delta: 151.0MB). Free memory was 158.0MB in the beginning and 275.4MB in the end (delta: -117.5MB). Peak memory consumption was 34.7MB. Max. memory is 8.0GB. [2022-12-06 05:42:27,878 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 181.4MB. Free memory was 159.2MB in the beginning and 159.1MB in the end (delta: 86.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 05:42:27,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.15ms. Allocated memory is still 181.4MB. Free memory was 158.0MB in the beginning and 145.6MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 05:42:27,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.82ms. Allocated memory is still 181.4MB. Free memory was 145.6MB in the beginning and 143.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 05:42:27,879 INFO L158 Benchmark]: Boogie Preprocessor took 48.43ms. Allocated memory is still 181.4MB. Free memory was 143.6MB in the beginning and 141.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 05:42:27,880 INFO L158 Benchmark]: RCFGBuilder took 552.34ms. Allocated memory is still 181.4MB. Free memory was 141.9MB in the beginning and 120.6MB in the end (delta: 21.3MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-06 05:42:27,880 INFO L158 Benchmark]: TraceAbstraction took 12199.73ms. Allocated memory was 181.4MB in the beginning and 332.4MB in the end (delta: 151.0MB). Free memory was 119.9MB in the beginning and 275.4MB in the end (delta: -155.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 05:42:27,882 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 181.4MB. Free memory was 159.2MB in the beginning and 159.1MB in the end (delta: 86.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 209.15ms. Allocated memory is still 181.4MB. Free memory was 158.0MB in the beginning and 145.6MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.82ms. Allocated memory is still 181.4MB. Free memory was 145.6MB in the beginning and 143.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.43ms. Allocated memory is still 181.4MB. Free memory was 143.6MB in the beginning and 141.9MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 552.34ms. Allocated memory is still 181.4MB. Free memory was 141.9MB in the beginning and 120.6MB in the end (delta: 21.3MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 12199.73ms. Allocated memory was 181.4MB in the beginning and 332.4MB in the end (delta: 151.0MB). Free memory was 119.9MB in the beginning and 275.4MB in the end (delta: -155.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5s, 185 PlacesBefore, 34 PlacesAfterwards, 195 TransitionsBefore, 31 TransitionsAfterwards, 1874 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 116 TrivialYvCompositions, 35 ConcurrentYvCompositions, 13 ChoiceCompositions, 164 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1092, independent: 1072, independent conditional: 1072, independent unconditional: 0, dependent: 20, dependent conditional: 20, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1092, independent: 1072, independent conditional: 0, independent unconditional: 1072, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1092, independent: 1072, independent conditional: 0, independent unconditional: 1072, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1092, independent: 1072, independent conditional: 0, independent unconditional: 1072, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1017, independent: 1002, independent conditional: 0, independent unconditional: 1002, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1017, independent: 1002, independent conditional: 0, independent unconditional: 1002, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1092, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 1017, unknown conditional: 0, unknown unconditional: 1017] , Statistics on independence cache: Total cache size (in pairs): 1635, Positive cache size: 1620, Positive conditional cache size: 0, Positive unconditional cache size: 1620, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, 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, 31 PlacesBefore, 31 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 1, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10, independent: 7, independent conditional: 1, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10, independent: 7, independent conditional: 1, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, independent: 7, independent conditional: 1, independent unconditional: 6, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 9, unknown conditional: 1, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 7, Positive conditional cache size: 1, Positive unconditional cache size: 6, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 37 PlacesBefore, 37 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 282 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, independent: 15, independent conditional: 15, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 18, independent: 15, independent conditional: 1, independent unconditional: 14, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 18, independent: 15, independent conditional: 1, independent unconditional: 14, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18, independent: 15, independent conditional: 1, independent unconditional: 14, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, independent: 5, independent conditional: 0, independent unconditional: 5, 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: 5, independent: 5, independent conditional: 0, independent unconditional: 5, 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: 18, independent: 10, independent conditional: 1, independent unconditional: 9, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 12, Positive conditional cache size: 1, Positive unconditional cache size: 11, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 39 PlacesBefore, 39 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, 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: 9, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 12, Positive conditional cache size: 1, Positive unconditional cache size: 11, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 37 PlacesBefore, 35 PlacesAfterwards, 37 TransitionsBefore, 35 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28, independent: 22, independent conditional: 22, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 28, independent: 22, independent conditional: 16, independent unconditional: 6, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 28, independent: 22, independent conditional: 7, independent unconditional: 15, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 28, independent: 22, independent conditional: 7, independent unconditional: 15, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, independent: 16, independent conditional: 7, independent unconditional: 9, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 18, unknown conditional: 9, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 32, Positive cache size: 28, Positive conditional cache size: 8, Positive unconditional cache size: 20, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 9, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 36 PlacesBefore, 36 PlacesAfterwards, 36 TransitionsBefore, 34 TransitionsAfterwards, 274 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 42, independent: 36, independent conditional: 36, independent unconditional: 0, dependent: 6, dependent conditional: 6, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 42, independent: 36, independent conditional: 28, independent unconditional: 8, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 42, independent: 36, independent conditional: 14, independent unconditional: 22, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 42, independent: 36, independent conditional: 14, independent unconditional: 22, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, independent: 12, independent conditional: 5, independent unconditional: 7, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, independent: 24, independent conditional: 9, independent unconditional: 15, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 13, unknown conditional: 5, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 40, Positive conditional cache size: 13, Positive unconditional cache size: 27, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 14, Maximal queried relation: 0 - ExceptionOrErrorResult: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word is no longer accepted by reduced abstraction! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word is no longer accepted by reduced abstraction!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:132) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-06 05:42:27,899 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...