/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 07:25:13,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 07:25:13,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 07:25:13,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 07:25:13,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 07:25:13,900 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 07:25:13,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 07:25:13,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 07:25:13,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 07:25:13,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 07:25:13,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 07:25:13,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 07:25:13,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 07:25:13,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 07:25:13,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 07:25:13,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 07:25:13,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 07:25:13,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 07:25:13,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 07:25:13,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 07:25:13,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 07:25:13,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 07:25:13,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 07:25:13,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 07:25:13,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 07:25:13,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 07:25:13,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 07:25:13,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 07:25:13,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 07:25:13,935 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 07:25:13,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 07:25:13,936 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 07:25:13,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 07:25:13,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 07:25:13,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 07:25:13,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 07:25:13,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 07:25:13,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 07:25:13,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 07:25:13,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 07:25:13,951 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 07:25:13,953 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 07:25:13,991 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 07:25:13,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 07:25:13,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 07:25:13,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 07:25:13,993 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 07:25:13,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 07:25:13,994 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 07:25:13,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 07:25:13,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 07:25:13,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 07:25:13,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 07:25:13,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 07:25:13,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 07:25:13,996 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 07:25:13,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 07:25:13,996 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 07:25:13,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 07:25:13,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 07:25:13,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 07:25:13,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 07:25:13,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 07:25:13,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:25:13,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 07:25:13,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 07:25:13,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 07:25:13,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 07:25:13,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 07:25:13,998 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 07:25:13,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 07:25:14,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 07:25:14,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 07:25:14,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 07:25:14,365 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 07:25:14,366 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 07:25:14,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c [2022-12-06 07:25:15,403 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 07:25:15,590 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 07:25:15,591 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/loop-tiling-eq.wvr.c [2022-12-06 07:25:15,606 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8122b1108/76d5b7250029448680ed03c9d3e0ccb1/FLAGa6f3a8245 [2022-12-06 07:25:15,622 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8122b1108/76d5b7250029448680ed03c9d3e0ccb1 [2022-12-06 07:25:15,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 07:25:15,626 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 07:25:15,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 07:25:15,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 07:25:15,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 07:25:15,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:15,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570b31dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15, skipping insertion in model container [2022-12-06 07:25:15,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:15,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 07:25:15,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 07:25:15,849 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/loop-tiling-eq.wvr.c[2618,2631] [2022-12-06 07:25:15,867 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:25:15,877 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 07:25:15,902 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/loop-tiling-eq.wvr.c[2618,2631] [2022-12-06 07:25:15,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:25:15,921 INFO L208 MainTranslator]: Completed translation [2022-12-06 07:25:15,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15 WrapperNode [2022-12-06 07:25:15,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 07:25:15,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 07:25:15,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 07:25:15,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 07:25:15,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:15,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:15,984 INFO L138 Inliner]: procedures = 25, calls = 41, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 186 [2022-12-06 07:25:15,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 07:25:15,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 07:25:15,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 07:25:15,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 07:25:15,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:15,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:16,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:16,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:16,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:16,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:16,026 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:16,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:16,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 07:25:16,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 07:25:16,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 07:25:16,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 07:25:16,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (1/1) ... [2022-12-06 07:25:16,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:25:16,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:25:16,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 07:25:16,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 07:25:16,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 07:25:16,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-06 07:25:16,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 07:25:16,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 07:25:16,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 07:25:16,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-06 07:25:16,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 07:25:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 07:25:16,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 07:25:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 07:25:16,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 07:25:16,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 07:25:16,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 07:25:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 07:25:16,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 07:25:16,120 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 07:25:16,278 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 07:25:16,285 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 07:25:16,655 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 07:25:16,664 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 07:25:16,665 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2022-12-06 07:25:16,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:25:16 BoogieIcfgContainer [2022-12-06 07:25:16,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 07:25:16,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 07:25:16,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 07:25:16,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 07:25:16,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:25:15" (1/3) ... [2022-12-06 07:25:16,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f77ce57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:25:16, skipping insertion in model container [2022-12-06 07:25:16,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:25:15" (2/3) ... [2022-12-06 07:25:16,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f77ce57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:25:16, skipping insertion in model container [2022-12-06 07:25:16,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:25:16" (3/3) ... [2022-12-06 07:25:16,675 INFO L112 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c [2022-12-06 07:25:16,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 07:25:16,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 07:25:16,708 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 07:25:16,828 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 07:25:16,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 250 transitions, 516 flow [2022-12-06 07:25:16,966 INFO L130 PetriNetUnfolder]: 26/248 cut-off events. [2022-12-06 07:25:16,967 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:25:16,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 248 events. 26/248 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 266 event pairs, 0 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 186. Up to 2 conditions per place. [2022-12-06 07:25:16,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 250 transitions, 516 flow [2022-12-06 07:25:16,981 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 221 places, 240 transitions, 492 flow [2022-12-06 07:25:16,983 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:25:16,999 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 221 places, 240 transitions, 492 flow [2022-12-06 07:25:17,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 221 places, 240 transitions, 492 flow [2022-12-06 07:25:17,050 INFO L130 PetriNetUnfolder]: 26/240 cut-off events. [2022-12-06 07:25:17,050 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:25:17,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 26/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 266 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 186. Up to 2 conditions per place. [2022-12-06 07:25:17,054 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 221 places, 240 transitions, 492 flow [2022-12-06 07:25:17,055 INFO L188 LiptonReduction]: Number of co-enabled transitions 972 [2022-12-06 07:25:17,524 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:17,526 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:17,530 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:17,531 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:18,320 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:18,321 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:18,323 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:18,324 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:19,114 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:19,116 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:19,483 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:19,487 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:19,490 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:19,491 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:19,600 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:19,601 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:19,603 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:19,604 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:20,569 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:20,570 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:20,573 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:20,573 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:21,070 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:21,071 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:21,074 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:21,075 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:21,503 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:21,505 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:21,506 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:21,507 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:22,020 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:22,021 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:22,022 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:22,023 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:22,272 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:22,273 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:32,279 INFO L203 LiptonReduction]: Total number of compositions: 212 [2022-12-06 07:25:32,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 07:25:32,308 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;@1af4e148, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 07:25:32,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 07:25:32,323 INFO L130 PetriNetUnfolder]: 7/27 cut-off events. [2022-12-06 07:25:32,323 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:25:32,324 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:25:32,324 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:25:32,325 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:25:32,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:25:32,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1482480724, now seen corresponding path program 1 times [2022-12-06 07:25:32,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:25:32,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868347266] [2022-12-06 07:25:32,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:32,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:25:32,457 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:25:32,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [980024239] [2022-12-06 07:25:32,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:32,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:32,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:25:32,463 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 07:25:32,496 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 07:25:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:25:32,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-06 07:25:32,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:25:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:25:32,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:25:32,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:25:32,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868347266] [2022-12-06 07:25:32,621 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:25:32,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980024239] [2022-12-06 07:25:32,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980024239] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:25:32,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:25:32,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:25:32,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519429407] [2022-12-06 07:25:32,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:25:32,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:25:32,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:25:32,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:25:32,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:25:32,659 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 28 [2022-12-06 07:25:32,661 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 28 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:25:32,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:25:32,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 28 [2022-12-06 07:25:32,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:25:32,859 INFO L130 PetriNetUnfolder]: 205/348 cut-off events. [2022-12-06 07:25:32,859 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-06 07:25:32,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 708 conditions, 348 events. 205/348 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1356 event pairs, 100 based on Foata normal form. 1/243 useless extension candidates. Maximal degree in co-relation 278. Up to 166 conditions per place. [2022-12-06 07:25:32,864 INFO L137 encePairwiseOnDemand]: 24/28 looper letters, 26 selfloop transitions, 2 changer transitions 16/47 dead transitions. [2022-12-06 07:25:32,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 47 transitions, 206 flow [2022-12-06 07:25:32,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:25:32,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:25:32,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 57 transitions. [2022-12-06 07:25:32,878 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5089285714285714 [2022-12-06 07:25:32,880 INFO L175 Difference]: Start difference. First operand has 28 places, 28 transitions, 68 flow. Second operand 4 states and 57 transitions. [2022-12-06 07:25:32,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 47 transitions, 206 flow [2022-12-06 07:25:32,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 47 transitions, 190 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-06 07:25:32,890 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 74 flow [2022-12-06 07:25:32,892 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2022-12-06 07:25:32,896 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2022-12-06 07:25:32,896 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:25:32,897 INFO L89 Accepts]: Start accepts. Operand has 29 places, 29 transitions, 74 flow [2022-12-06 07:25:32,900 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:25:32,901 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:25:32,901 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 29 transitions, 74 flow [2022-12-06 07:25:32,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 29 transitions, 74 flow [2022-12-06 07:25:32,910 INFO L130 PetriNetUnfolder]: 8/31 cut-off events. [2022-12-06 07:25:32,910 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 07:25:32,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 31 events. 8/31 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 37. Up to 4 conditions per place. [2022-12-06 07:25:32,913 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 29 transitions, 74 flow [2022-12-06 07:25:32,913 INFO L188 LiptonReduction]: Number of co-enabled transitions 122 [2022-12-06 07:25:32,939 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:25:32,940 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 44 [2022-12-06 07:25:32,941 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 29 transitions, 74 flow [2022-12-06 07:25:32,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:25:32,941 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:25:32,941 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:25:32,950 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 07:25:33,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-06 07:25:33,147 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:25:33,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:25:33,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2036660414, now seen corresponding path program 1 times [2022-12-06 07:25:33,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:25:33,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692564127] [2022-12-06 07:25:33,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:33,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:25:33,166 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:25:33,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364107852] [2022-12-06 07:25:33,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:33,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:33,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:25:33,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:25:33,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 07:25:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:25:33,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-06 07:25:33,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:25:33,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:25:33,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 07:25:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:25:33,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:25:33,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692564127] [2022-12-06 07:25:33,407 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:25:33,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364107852] [2022-12-06 07:25:33,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364107852] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-06 07:25:33,407 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-06 07:25:33,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-12-06 07:25:33,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146387476] [2022-12-06 07:25:33,408 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-06 07:25:33,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 07:25:33,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:25:33,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 07:25:33,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-06 07:25:33,410 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 28 [2022-12-06 07:25:33,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 29 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:25:33,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:25:33,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 28 [2022-12-06 07:25:33,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:25:33,570 INFO L130 PetriNetUnfolder]: 194/311 cut-off events. [2022-12-06 07:25:33,571 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-06 07:25:33,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 311 events. 194/311 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1024 event pairs, 32 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 629. Up to 114 conditions per place. [2022-12-06 07:25:33,575 INFO L137 encePairwiseOnDemand]: 22/28 looper letters, 40 selfloop transitions, 6 changer transitions 0/47 dead transitions. [2022-12-06 07:25:33,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 47 transitions, 204 flow [2022-12-06 07:25:33,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 07:25:33,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 07:25:33,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 52 transitions. [2022-12-06 07:25:33,579 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.30952380952380953 [2022-12-06 07:25:33,579 INFO L175 Difference]: Start difference. First operand has 28 places, 29 transitions, 74 flow. Second operand 6 states and 52 transitions. [2022-12-06 07:25:33,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 47 transitions, 204 flow [2022-12-06 07:25:33,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 47 transitions, 200 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-06 07:25:33,581 INFO L231 Difference]: Finished difference. Result has 34 places, 32 transitions, 103 flow [2022-12-06 07:25:33,581 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=103, PETRI_PLACES=34, PETRI_TRANSITIONS=32} [2022-12-06 07:25:33,582 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2022-12-06 07:25:33,582 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:25:33,582 INFO L89 Accepts]: Start accepts. Operand has 34 places, 32 transitions, 103 flow [2022-12-06 07:25:33,584 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:25:33,584 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:25:33,584 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 32 transitions, 103 flow [2022-12-06 07:25:33,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 32 transitions, 103 flow [2022-12-06 07:25:33,592 INFO L130 PetriNetUnfolder]: 9/36 cut-off events. [2022-12-06 07:25:33,592 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 07:25:33,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 36 events. 9/36 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 40. Up to 4 conditions per place. [2022-12-06 07:25:33,593 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 32 transitions, 103 flow [2022-12-06 07:25:33,593 INFO L188 LiptonReduction]: Number of co-enabled transitions 150 [2022-12-06 07:25:33,968 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:25:33,969 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 387 [2022-12-06 07:25:33,969 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 99 flow [2022-12-06 07:25:33,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:25:33,969 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:25:33,969 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:25:33,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 07:25:34,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-06 07:25:34,170 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:25:34,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:25:34,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1106212815, now seen corresponding path program 1 times [2022-12-06 07:25:34,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:25:34,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397226800] [2022-12-06 07:25:34,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:34,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:25:34,189 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:25:34,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455242348] [2022-12-06 07:25:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:34,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:34,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:25:34,191 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:25:34,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-06 07:25:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:25:34,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-06 07:25:34,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:25:34,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-06 07:25:34,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:25:34,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:25:34,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397226800] [2022-12-06 07:25:34,333 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:25:34,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455242348] [2022-12-06 07:25:34,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455242348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:25:34,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:25:34,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:25:34,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785437615] [2022-12-06 07:25:34,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:25:34,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:25:34,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:25:34,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:25:34,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:25:34,336 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-06 07:25:34,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 99 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:25:34,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:25:34,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-06 07:25:34,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:25:34,782 INFO L130 PetriNetUnfolder]: 528/849 cut-off events. [2022-12-06 07:25:34,783 INFO L131 PetriNetUnfolder]: For 141/183 co-relation queries the response was YES. [2022-12-06 07:25:34,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1951 conditions, 849 events. 528/849 cut-off events. For 141/183 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3696 event pairs, 312 based on Foata normal form. 44/774 useless extension candidates. Maximal degree in co-relation 1272. Up to 284 conditions per place. [2022-12-06 07:25:34,786 INFO L137 encePairwiseOnDemand]: 23/28 looper letters, 27 selfloop transitions, 3 changer transitions 46/78 dead transitions. [2022-12-06 07:25:34,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 78 transitions, 397 flow [2022-12-06 07:25:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:25:34,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:25:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 80 transitions. [2022-12-06 07:25:34,788 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2022-12-06 07:25:34,788 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 99 flow. Second operand 5 states and 80 transitions. [2022-12-06 07:25:34,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 78 transitions, 397 flow [2022-12-06 07:25:34,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 78 transitions, 382 flow, removed 7 selfloop flow, removed 2 redundant places. [2022-12-06 07:25:34,791 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 115 flow [2022-12-06 07:25:34,791 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=115, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2022-12-06 07:25:34,792 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 10 predicate places. [2022-12-06 07:25:34,792 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:25:34,792 INFO L89 Accepts]: Start accepts. Operand has 38 places, 32 transitions, 115 flow [2022-12-06 07:25:34,793 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:25:34,793 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:25:34,793 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 32 transitions, 115 flow [2022-12-06 07:25:34,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 115 flow [2022-12-06 07:25:34,799 INFO L130 PetriNetUnfolder]: 9/37 cut-off events. [2022-12-06 07:25:34,799 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 07:25:34,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 37 events. 9/37 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 63. Up to 7 conditions per place. [2022-12-06 07:25:34,800 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 32 transitions, 115 flow [2022-12-06 07:25:34,800 INFO L188 LiptonReduction]: Number of co-enabled transitions 150 [2022-12-06 07:25:34,805 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:34,812 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:34,815 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:34,816 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:35,767 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:25:35,768 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 976 [2022-12-06 07:25:35,768 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 112 flow [2022-12-06 07:25:35,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:25:35,768 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:25:35,768 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 07:25:35,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-06 07:25:35,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:35,977 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:25:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:25:35,977 INFO L85 PathProgramCache]: Analyzing trace with hash 254232634, now seen corresponding path program 1 times [2022-12-06 07:25:35,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:25:35,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239055527] [2022-12-06 07:25:35,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:35,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:25:35,993 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:25:35,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [166587085] [2022-12-06 07:25:35,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:35,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:35,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:25:35,995 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:25:36,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-06 07:25:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:25:36,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-06 07:25:36,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:25:36,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:25:36,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:25:36,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:25:36,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239055527] [2022-12-06 07:25:36,137 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:25:36,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166587085] [2022-12-06 07:25:36,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166587085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:25:36,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:25:36,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-06 07:25:36,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370369490] [2022-12-06 07:25:36,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:25:36,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:25:36,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:25:36,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:25:36,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:25:36,139 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-06 07:25:36,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:25:36,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:25:36,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-06 07:25:36,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:25:36,244 INFO L130 PetriNetUnfolder]: 274/443 cut-off events. [2022-12-06 07:25:36,244 INFO L131 PetriNetUnfolder]: For 64/78 co-relation queries the response was YES. [2022-12-06 07:25:36,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 443 events. 274/443 cut-off events. For 64/78 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1461 event pairs, 104 based on Foata normal form. 34/412 useless extension candidates. Maximal degree in co-relation 975. Up to 279 conditions per place. [2022-12-06 07:25:36,247 INFO L137 encePairwiseOnDemand]: 24/28 looper letters, 34 selfloop transitions, 4 changer transitions 0/40 dead transitions. [2022-12-06 07:25:36,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 207 flow [2022-12-06 07:25:36,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:25:36,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:25:36,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2022-12-06 07:25:36,249 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2022-12-06 07:25:36,249 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 112 flow. Second operand 4 states and 44 transitions. [2022-12-06 07:25:36,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 207 flow [2022-12-06 07:25:36,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 187 flow, removed 10 selfloop flow, removed 4 redundant places. [2022-12-06 07:25:36,254 INFO L231 Difference]: Finished difference. Result has 35 places, 32 transitions, 111 flow [2022-12-06 07:25:36,254 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=35, PETRI_TRANSITIONS=32} [2022-12-06 07:25:36,256 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 7 predicate places. [2022-12-06 07:25:36,256 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:25:36,256 INFO L89 Accepts]: Start accepts. Operand has 35 places, 32 transitions, 111 flow [2022-12-06 07:25:36,257 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:25:36,257 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:25:36,257 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 32 transitions, 111 flow [2022-12-06 07:25:36,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 32 transitions, 111 flow [2022-12-06 07:25:36,264 INFO L130 PetriNetUnfolder]: 9/41 cut-off events. [2022-12-06 07:25:36,265 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-06 07:25:36,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 41 events. 9/41 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 54. Up to 7 conditions per place. [2022-12-06 07:25:36,265 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 32 transitions, 111 flow [2022-12-06 07:25:36,265 INFO L188 LiptonReduction]: Number of co-enabled transitions 164 [2022-12-06 07:25:38,400 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 07:25:38,401 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2145 [2022-12-06 07:25:38,401 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 32 transitions, 111 flow [2022-12-06 07:25:38,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:25:38,401 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:25:38,401 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 07:25:38,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-06 07:25:38,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:38,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:25:38,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:25:38,603 INFO L85 PathProgramCache]: Analyzing trace with hash -382572350, now seen corresponding path program 1 times [2022-12-06 07:25:38,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:25:38,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837931680] [2022-12-06 07:25:38,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:38,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:25:38,616 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:25:38,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951005719] [2022-12-06 07:25:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:38,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:38,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:25:38,620 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:25:38,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-06 07:25:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:25:38,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-06 07:25:38,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:25:38,918 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 07:25:38,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:25:38,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:25:38,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837931680] [2022-12-06 07:25:38,919 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:25:38,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951005719] [2022-12-06 07:25:38,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951005719] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:25:38,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:25:38,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:25:38,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978153119] [2022-12-06 07:25:38,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:25:38,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:25:38,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:25:38,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:25:38,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:25:38,921 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-06 07:25:38,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 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 07:25:38,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:25:38,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-06 07:25:38,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:25:39,101 INFO L130 PetriNetUnfolder]: 275/447 cut-off events. [2022-12-06 07:25:39,101 INFO L131 PetriNetUnfolder]: For 125/139 co-relation queries the response was YES. [2022-12-06 07:25:39,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 447 events. 275/447 cut-off events. For 125/139 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1475 event pairs, 176 based on Foata normal form. 16/396 useless extension candidates. Maximal degree in co-relation 1047. Up to 440 conditions per place. [2022-12-06 07:25:39,104 INFO L137 encePairwiseOnDemand]: 23/28 looper letters, 29 selfloop transitions, 2 changer transitions 3/36 dead transitions. [2022-12-06 07:25:39,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 187 flow [2022-12-06 07:25:39,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 07:25:39,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 07:25:39,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 42 transitions. [2022-12-06 07:25:39,105 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3 [2022-12-06 07:25:39,105 INFO L175 Difference]: Start difference. First operand has 35 places, 32 transitions, 111 flow. Second operand 5 states and 42 transitions. [2022-12-06 07:25:39,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 187 flow [2022-12-06 07:25:39,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 182 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 07:25:39,107 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 124 flow [2022-12-06 07:25:39,107 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=124, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2022-12-06 07:25:39,108 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2022-12-06 07:25:39,108 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:25:39,108 INFO L89 Accepts]: Start accepts. Operand has 40 places, 33 transitions, 124 flow [2022-12-06 07:25:39,109 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:25:39,109 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:25:39,109 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 33 transitions, 124 flow [2022-12-06 07:25:39,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 33 transitions, 124 flow [2022-12-06 07:25:39,116 INFO L130 PetriNetUnfolder]: 9/42 cut-off events. [2022-12-06 07:25:39,116 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-12-06 07:25:39,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 42 events. 9/42 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 68. Up to 7 conditions per place. [2022-12-06 07:25:39,117 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 33 transitions, 124 flow [2022-12-06 07:25:39,117 INFO L188 LiptonReduction]: Number of co-enabled transitions 164 [2022-12-06 07:25:39,124 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:39,124 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:39,127 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:39,127 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:51,100 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:25:51,101 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 11993 [2022-12-06 07:25:51,101 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 120 flow [2022-12-06 07:25:51,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 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 07:25:51,102 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:25:51,102 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 07:25:51,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-06 07:25:51,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:51,303 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:25:51,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:25:51,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1714441302, now seen corresponding path program 1 times [2022-12-06 07:25:51,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:25:51,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719174787] [2022-12-06 07:25:51,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:51,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:25:51,319 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:25:51,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2060429767] [2022-12-06 07:25:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:51,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:51,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:25:51,321 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:25:51,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-06 07:25:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:25:51,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-06 07:25:51,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:25:51,444 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 07:25:51,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:25:51,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:25:51,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719174787] [2022-12-06 07:25:51,445 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:25:51,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060429767] [2022-12-06 07:25:51,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060429767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:25:51,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:25:51,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:25:51,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034433763] [2022-12-06 07:25:51,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:25:51,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:25:51,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:25:51,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:25:51,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:25:51,447 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 28 [2022-12-06 07:25:51,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:25:51,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:25:51,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 28 [2022-12-06 07:25:51,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:25:51,559 INFO L130 PetriNetUnfolder]: 210/376 cut-off events. [2022-12-06 07:25:51,559 INFO L131 PetriNetUnfolder]: For 129/143 co-relation queries the response was YES. [2022-12-06 07:25:51,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 376 events. 210/376 cut-off events. For 129/143 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1316 event pairs, 128 based on Foata normal form. 15/339 useless extension candidates. Maximal degree in co-relation 881. Up to 335 conditions per place. [2022-12-06 07:25:51,562 INFO L137 encePairwiseOnDemand]: 24/28 looper letters, 27 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2022-12-06 07:25:51,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 33 transitions, 184 flow [2022-12-06 07:25:51,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:25:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:25:51,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 39 transitions. [2022-12-06 07:25:51,563 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.3482142857142857 [2022-12-06 07:25:51,563 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 120 flow. Second operand 4 states and 39 transitions. [2022-12-06 07:25:51,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 33 transitions, 184 flow [2022-12-06 07:25:51,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 168 flow, removed 8 selfloop flow, removed 4 redundant places. [2022-12-06 07:25:51,565 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 120 flow [2022-12-06 07:25:51,565 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2022-12-06 07:25:51,565 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 9 predicate places. [2022-12-06 07:25:51,566 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:25:51,566 INFO L89 Accepts]: Start accepts. Operand has 37 places, 33 transitions, 120 flow [2022-12-06 07:25:51,566 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:25:51,566 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:25:51,567 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 33 transitions, 120 flow [2022-12-06 07:25:51,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 33 transitions, 120 flow [2022-12-06 07:25:51,573 INFO L130 PetriNetUnfolder]: 9/42 cut-off events. [2022-12-06 07:25:51,573 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-06 07:25:51,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 42 events. 9/42 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 63. Up to 7 conditions per place. [2022-12-06 07:25:51,574 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 33 transitions, 120 flow [2022-12-06 07:25:51,574 INFO L188 LiptonReduction]: Number of co-enabled transitions 164 [2022-12-06 07:25:51,589 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:51,590 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:51,592 INFO L167 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2022-12-06 07:25:51,593 INFO L172 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2022-12-06 07:25:51,999 INFO L203 LiptonReduction]: Total number of compositions: 2 [2022-12-06 07:25:52,000 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 434 [2022-12-06 07:25:52,000 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 116 flow [2022-12-06 07:25:52,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-06 07:25:52,000 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:25:52,000 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 07:25:52,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-06 07:25:52,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:52,203 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:25:52,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:25:52,204 INFO L85 PathProgramCache]: Analyzing trace with hash 607910140, now seen corresponding path program 1 times [2022-12-06 07:25:52,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:25:52,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494282309] [2022-12-06 07:25:52,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:52,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:25:52,217 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-06 07:25:52,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [773985998] [2022-12-06 07:25:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:25:52,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:52,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:25:52,219 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 07:25:52,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-06 07:25:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:25:52,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-06 07:25:52,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 07:25:52,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-06 07:25:52,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 07:25:52,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:25:52,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494282309] [2022-12-06 07:25:52,347 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-06 07:25:52,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773985998] [2022-12-06 07:25:52,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773985998] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:25:52,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:25:52,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:25:52,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758914178] [2022-12-06 07:25:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:25:52,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:25:52,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:25:52,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:25:52,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:25:52,349 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-06 07:25:52,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 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 07:25:52,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:25:52,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-06 07:25:52,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:25:52,463 INFO L130 PetriNetUnfolder]: 266/478 cut-off events. [2022-12-06 07:25:52,464 INFO L131 PetriNetUnfolder]: For 224/246 co-relation queries the response was YES. [2022-12-06 07:25:52,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 478 events. 266/478 cut-off events. For 224/246 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1759 event pairs, 129 based on Foata normal form. 22/475 useless extension candidates. Maximal degree in co-relation 1139. Up to 314 conditions per place. [2022-12-06 07:25:52,466 INFO L137 encePairwiseOnDemand]: 24/28 looper letters, 40 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2022-12-06 07:25:52,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 255 flow [2022-12-06 07:25:52,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:25:52,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:25:52,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2022-12-06 07:25:52,468 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4017857142857143 [2022-12-06 07:25:52,468 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 116 flow. Second operand 4 states and 45 transitions. [2022-12-06 07:25:52,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 255 flow [2022-12-06 07:25:52,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 45 transitions, 246 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-06 07:25:52,470 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 121 flow [2022-12-06 07:25:52,470 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2022-12-06 07:25:52,470 INFO L294 CegarLoopForPetriNet]: 28 programPoint places, 10 predicate places. [2022-12-06 07:25:52,470 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:25:52,471 INFO L89 Accepts]: Start accepts. Operand has 38 places, 33 transitions, 121 flow [2022-12-06 07:25:52,471 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:25:52,471 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:25:52,472 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 33 transitions, 121 flow [2022-12-06 07:25:52,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 33 transitions, 121 flow [2022-12-06 07:25:52,478 INFO L130 PetriNetUnfolder]: 9/43 cut-off events. [2022-12-06 07:25:52,478 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-06 07:25:52,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 43 events. 9/43 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 68. Up to 7 conditions per place. [2022-12-06 07:25:52,479 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 33 transitions, 121 flow [2022-12-06 07:25:52,479 INFO L188 LiptonReduction]: Number of co-enabled transitions 190 [2022-12-06 07:25:56,827 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-06 07:25:56,828 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 07:25:56,829 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-06 07:25:56,829 INFO L89 Accepts]: Start accepts. Operand has 38 places, 32 transitions, 116 flow [2022-12-06 07:25:56,830 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:25:56,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-06 07:25:57,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 07:25:57,031 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 07:25:57,033 INFO L158 Benchmark]: Toolchain (without parser) took 41407.59ms. Allocated memory was 206.6MB in the beginning and 318.8MB in the end (delta: 112.2MB). Free memory was 173.5MB in the beginning and 221.1MB in the end (delta: -47.6MB). Peak memory consumption was 65.7MB. Max. memory is 8.0GB. [2022-12-06 07:25:57,034 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 206.6MB. Free memory was 184.4MB in the beginning and 184.3MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 07:25:57,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.87ms. Allocated memory is still 206.6MB. Free memory was 173.5MB in the beginning and 161.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-06 07:25:57,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.17ms. Allocated memory is still 206.6MB. Free memory was 161.5MB in the beginning and 159.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:25:57,034 INFO L158 Benchmark]: Boogie Preprocessor took 45.05ms. Allocated memory is still 206.6MB. Free memory was 159.4MB in the beginning and 157.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 07:25:57,035 INFO L158 Benchmark]: RCFGBuilder took 629.17ms. Allocated memory is still 206.6MB. Free memory was 157.3MB in the beginning and 135.3MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-06 07:25:57,035 INFO L158 Benchmark]: TraceAbstraction took 40363.81ms. Allocated memory was 206.6MB in the beginning and 318.8MB in the end (delta: 112.2MB). Free memory was 134.7MB in the beginning and 221.1MB in the end (delta: -86.4MB). Peak memory consumption was 26.9MB. Max. memory is 8.0GB. [2022-12-06 07:25:57,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 206.6MB. Free memory was 184.4MB in the beginning and 184.3MB in the end (delta: 67.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 293.87ms. Allocated memory is still 206.6MB. Free memory was 173.5MB in the beginning and 161.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.17ms. Allocated memory is still 206.6MB. Free memory was 161.5MB in the beginning and 159.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.05ms. Allocated memory is still 206.6MB. Free memory was 159.4MB in the beginning and 157.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 629.17ms. Allocated memory is still 206.6MB. Free memory was 157.3MB in the beginning and 135.3MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 40363.81ms. Allocated memory was 206.6MB in the beginning and 318.8MB in the end (delta: 112.2MB). Free memory was 134.7MB in the beginning and 221.1MB in the end (delta: -86.4MB). Peak memory consumption was 26.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.2s, 221 PlacesBefore, 28 PlacesAfterwards, 240 TransitionsBefore, 28 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 167 TrivialYvCompositions, 26 ConcurrentYvCompositions, 19 ChoiceCompositions, 212 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 596, independent: 575, independent conditional: 575, independent unconditional: 0, dependent: 21, dependent conditional: 21, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 596, independent: 575, independent conditional: 0, independent unconditional: 575, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 596, independent: 575, independent conditional: 0, independent unconditional: 575, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 596, independent: 575, independent conditional: 0, independent unconditional: 575, dependent: 21, dependent conditional: 0, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 538, independent: 527, independent conditional: 0, independent unconditional: 527, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 538, independent: 527, independent conditional: 0, independent unconditional: 527, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 596, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 538, unknown conditional: 0, unknown unconditional: 538] , Statistics on independence cache: Total cache size (in pairs): 892, Positive cache size: 881, Positive conditional cache size: 0, Positive unconditional cache size: 881, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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, 28 PlacesBefore, 28 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 122 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, independent: 11, independent conditional: 11, 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: 17, independent: 11, independent conditional: 0, independent unconditional: 11, 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: 17, independent: 11, independent conditional: 0, independent unconditional: 11, 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: 17, independent: 11, independent conditional: 0, independent unconditional: 11, 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: 17, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, independent: 11, independent conditional: 0, independent unconditional: 11, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 24, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 24, dependent conditional: 0, dependent unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 17, unknown conditional: 0, unknown unconditional: 17] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 11, Positive conditional cache size: 0, Positive unconditional cache size: 11, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 34 PlacesBefore, 33 PlacesAfterwards, 32 TransitionsBefore, 31 TransitionsAfterwards, 150 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, independent: 34, independent conditional: 34, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 46, independent: 34, independent conditional: 10, independent unconditional: 24, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, independent: 34, independent conditional: 6, independent unconditional: 28, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, independent: 34, independent conditional: 6, independent unconditional: 28, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, independent: 4, independent conditional: 0, independent unconditional: 4, 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: 5, independent: 4, independent conditional: 0, independent unconditional: 4, 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: 46, independent: 30, independent conditional: 6, independent unconditional: 24, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 15, Positive conditional cache size: 0, Positive unconditional cache size: 15, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0s, 36 PlacesBefore, 35 PlacesAfterwards, 32 TransitionsBefore, 31 TransitionsAfterwards, 150 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 42, independent: 30, independent conditional: 30, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 42, independent: 30, independent conditional: 8, independent unconditional: 22, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 42, independent: 30, independent conditional: 4, independent unconditional: 26, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 42, independent: 30, independent conditional: 4, independent unconditional: 26, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, 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: 2, independent: 2, independent conditional: 0, independent unconditional: 2, 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: 42, independent: 28, independent conditional: 4, independent unconditional: 24, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 35 PlacesBefore, 35 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, independent: 3, independent conditional: 3, independent unconditional: 0, dependent: 5, dependent conditional: 5, dependent unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 9, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2134, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 2134, unknown conditional: 0, unknown unconditional: 2134] ], Cache Queries: [ total: 9, independent: 3, independent conditional: 0, independent unconditional: 3, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.0s, 38 PlacesBefore, 37 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, independent: 14, independent conditional: 14, independent unconditional: 0, dependent: 10, dependent conditional: 10, dependent unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 26, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 26, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 26, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , 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: 26, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 37 PlacesBefore, 37 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, independent: 12, independent conditional: 12, independent unconditional: 0, dependent: 10, dependent conditional: 10, dependent unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 24, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 24, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , 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: 24, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 38 PlacesBefore, 38 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 190 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, independent: 19, independent conditional: 19, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 34, independent: 19, independent conditional: 13, independent unconditional: 6, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 34, independent: 19, independent conditional: 2, independent unconditional: 17, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 34, independent: 19, independent conditional: 2, independent unconditional: 17, dependent: 11, dependent conditional: 3, dependent unconditional: 8, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 3, dependent conditional: 3, dependent unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4345, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 55, dependent conditional: 55, dependent unconditional: 0, unknown: 4291, unknown conditional: 4291, unknown unconditional: 0] ], Cache Queries: [ total: 34, independent: 9, independent conditional: 2, independent unconditional: 7, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 17, unknown conditional: 5, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 10, Negative conditional cache size: 3, Negative unconditional cache size: 7, Unknown cache size: 3, Unknown conditional cache size: 2, Unknown unconditional cache size: 1, Eliminated conditions: 11, 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 07:25:57,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...