/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/array-eq-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 08:30:16,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 08:30:16,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 08:30:16,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 08:30:16,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 08:30:16,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 08:30:16,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 08:30:16,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 08:30:16,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 08:30:16,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 08:30:16,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 08:30:16,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 08:30:16,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 08:30:16,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 08:30:16,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 08:30:16,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 08:30:16,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 08:30:16,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 08:30:16,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 08:30:16,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 08:30:16,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 08:30:16,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 08:30:16,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 08:30:16,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 08:30:16,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 08:30:16,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 08:30:16,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 08:30:16,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 08:30:16,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 08:30:16,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 08:30:16,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 08:30:16,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 08:30:16,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 08:30:16,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 08:30:16,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 08:30:16,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 08:30:16,897 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-VariableLbe.epf [2023-01-28 08:30:16,918 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 08:30:16,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 08:30:16,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 08:30:16,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 08:30:16,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 08:30:16,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 08:30:16,920 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 08:30:16,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 08:30:16,920 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 08:30:16,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 08:30:16,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 08:30:16,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 08:30:16,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 08:30:16,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 08:30:16,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 08:30:16,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 08:30:16,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 08:30:16,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 08:30:16,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 08:30:16,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 08:30:16,922 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 08:30:17,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 08:30:17,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 08:30:17,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 08:30:17,126 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 08:30:17,126 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 08:30:17,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/array-eq-trans.wvr.c [2023-01-28 08:30:18,070 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 08:30:18,212 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 08:30:18,213 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-trans.wvr.c [2023-01-28 08:30:18,217 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc47e57e/8a8256dd111c4211b66644931af3cec8/FLAGa26c232ca [2023-01-28 08:30:18,226 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc47e57e/8a8256dd111c4211b66644931af3cec8 [2023-01-28 08:30:18,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 08:30:18,229 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 08:30:18,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 08:30:18,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 08:30:18,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 08:30:18,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a23c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18, skipping insertion in model container [2023-01-28 08:30:18,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 08:30:18,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 08:30:18,354 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-trans.wvr.c[2737,2750] [2023-01-28 08:30:18,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 08:30:18,366 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 08:30:18,382 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-trans.wvr.c[2737,2750] [2023-01-28 08:30:18,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 08:30:18,394 INFO L208 MainTranslator]: Completed translation [2023-01-28 08:30:18,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18 WrapperNode [2023-01-28 08:30:18,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 08:30:18,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 08:30:18,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 08:30:18,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 08:30:18,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,425 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 210 [2023-01-28 08:30:18,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 08:30:18,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 08:30:18,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 08:30:18,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 08:30:18,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,445 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 08:30:18,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 08:30:18,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 08:30:18,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 08:30:18,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (1/1) ... [2023-01-28 08:30:18,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 08:30:18,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 08:30:18,472 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) [2023-01-28 08:30:18,496 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 [2023-01-28 08:30:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 08:30:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 08:30:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 08:30:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 08:30:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 08:30:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-28 08:30:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-28 08:30:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 08:30:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 08:30:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 08:30:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-28 08:30:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 08:30:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 08:30:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 08:30:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 08:30:18,516 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 08:30:18,585 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 08:30:18,586 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 08:30:18,873 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 08:30:18,881 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 08:30:18,881 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-01-28 08:30:18,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 08:30:18 BoogieIcfgContainer [2023-01-28 08:30:18,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 08:30:18,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 08:30:18,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 08:30:18,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 08:30:18,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 08:30:18" (1/3) ... [2023-01-28 08:30:18,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb90378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 08:30:18, skipping insertion in model container [2023-01-28 08:30:18,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:30:18" (2/3) ... [2023-01-28 08:30:18,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb90378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 08:30:18, skipping insertion in model container [2023-01-28 08:30:18,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 08:30:18" (3/3) ... [2023-01-28 08:30:18,888 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2023-01-28 08:30:18,899 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 08:30:18,899 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 08:30:18,900 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 08:30:18,973 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-28 08:30:19,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 287 transitions, 598 flow [2023-01-28 08:30:19,082 INFO L130 PetriNetUnfolder]: 30/284 cut-off events. [2023-01-28 08:30:19,083 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 08:30:19,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 284 events. 30/284 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 244 event pairs, 0 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 189. Up to 3 conditions per place. [2023-01-28 08:30:19,088 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 287 transitions, 598 flow [2023-01-28 08:30:19,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 274 transitions, 566 flow [2023-01-28 08:30:19,095 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 08:30:19,100 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 274 transitions, 566 flow [2023-01-28 08:30:19,103 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 274 transitions, 566 flow [2023-01-28 08:30:19,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 274 transitions, 566 flow [2023-01-28 08:30:19,146 INFO L130 PetriNetUnfolder]: 30/274 cut-off events. [2023-01-28 08:30:19,147 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 08:30:19,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 274 events. 30/274 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 243 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 189. Up to 3 conditions per place. [2023-01-28 08:30:19,150 INFO L119 LiptonReduction]: Number of co-enabled transitions 2688 [2023-01-28 08:30:28,024 INFO L134 LiptonReduction]: Checked pairs total: 3952 [2023-01-28 08:30:28,024 INFO L136 LiptonReduction]: Total number of compositions: 315 [2023-01-28 08:30:28,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 08:30:28,037 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=PETRI_NET, 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;@7fef85b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 08:30:28,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 08:30:28,042 INFO L130 PetriNetUnfolder]: 8/28 cut-off events. [2023-01-28 08:30:28,042 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 08:30:28,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:30:28,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 08:30:28,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 08:30:28,055 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:30:28,055 INFO L85 PathProgramCache]: Analyzing trace with hash 640432984, now seen corresponding path program 1 times [2023-01-28 08:30:28,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:30:28,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338704839] [2023-01-28 08:30:28,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:30:28,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:30:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:30:28,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 08:30:28,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:30:28,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338704839] [2023-01-28 08:30:28,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338704839] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 08:30:28,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 08:30:28,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 08:30:28,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138194681] [2023-01-28 08:30:28,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:30:28,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 08:30:28,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:30:28,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 08:30:28,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-01-28 08:30:28,676 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 602 [2023-01-28 08:30:28,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 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) [2023-01-28 08:30:28,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:30:28,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 602 [2023-01-28 08:30:28,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:30:28,833 INFO L130 PetriNetUnfolder]: 301/444 cut-off events. [2023-01-28 08:30:28,833 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2023-01-28 08:30:28,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 444 events. 301/444 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1151 event pairs, 154 based on Foata normal form. 1/297 useless extension candidates. Maximal degree in co-relation 484. Up to 291 conditions per place. [2023-01-28 08:30:28,836 INFO L137 encePairwiseOnDemand]: 592/602 looper letters, 28 selfloop transitions, 6 changer transitions 18/52 dead transitions. [2023-01-28 08:30:28,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 52 transitions, 244 flow [2023-01-28 08:30:28,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 08:30:28,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 08:30:28,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1237 transitions. [2023-01-28 08:30:28,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34246954595791806 [2023-01-28 08:30:28,850 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1237 transitions. [2023-01-28 08:30:28,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1237 transitions. [2023-01-28 08:30:28,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:30:28,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1237 transitions. [2023-01-28 08:30:28,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.16666666666666) internal successors, (1237), 6 states have internal predecessors, (1237), 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) [2023-01-28 08:30:28,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 602.0) internal successors, (4214), 7 states have internal predecessors, (4214), 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) [2023-01-28 08:30:28,866 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 602.0) internal successors, (4214), 7 states have internal predecessors, (4214), 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) [2023-01-28 08:30:28,868 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 76 flow. Second operand 6 states and 1237 transitions. [2023-01-28 08:30:28,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 52 transitions, 244 flow [2023-01-28 08:30:28,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 52 transitions, 220 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-28 08:30:28,871 INFO L231 Difference]: Finished difference. Result has 34 places, 34 transitions, 112 flow [2023-01-28 08:30:28,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=112, PETRI_PLACES=34, PETRI_TRANSITIONS=34} [2023-01-28 08:30:28,874 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2023-01-28 08:30:28,875 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 34 transitions, 112 flow [2023-01-28 08:30:28,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 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) [2023-01-28 08:30:28,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:30:28,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 08:30:28,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 08:30:28,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 08:30:28,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:30:28,876 INFO L85 PathProgramCache]: Analyzing trace with hash 529232224, now seen corresponding path program 1 times [2023-01-28 08:30:28,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:30:28,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29851748] [2023-01-28 08:30:28,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:30:28,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:30:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:30:28,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 08:30:28,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:30:28,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29851748] [2023-01-28 08:30:28,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29851748] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 08:30:28,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52198726] [2023-01-28 08:30:28,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:30:28,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 08:30:28,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 08:30:28,990 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) [2023-01-28 08:30:29,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 08:30:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:30:29,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-28 08:30:29,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 08:30:29,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 08:30:29,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 08:30:29,930 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 08:30:29,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 167 treesize of output 222 [2023-01-28 08:30:30,212 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 08:30:30,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 186 treesize of output 366 [2023-01-28 08:30:36,437 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:36,586 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:36,680 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:37,274 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:37,417 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:37,500 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:37,583 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:37,651 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:37,734 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:37,799 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-28 08:30:37,822 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:37,857 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-28 08:30:37,879 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:37,923 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-28 08:30:37,948 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:37,986 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:38,793 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:40,439 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:40,553 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:48,913 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,183 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,203 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,251 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,259 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,267 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-28 08:30:56,290 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,304 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,311 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-28 08:30:56,344 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,371 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,400 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,407 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-01-28 08:30:56,580 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,673 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-01-28 08:30:56,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 08:30:56,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52198726] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 08:30:56,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 08:30:56,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 9 [2023-01-28 08:30:56,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443999605] [2023-01-28 08:30:56,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:30:56,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 08:30:56,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:30:56,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 08:30:56,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-01-28 08:30:56,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 602 [2023-01-28 08:30:56,803 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 34 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 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) [2023-01-28 08:30:56,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:30:56,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 602 [2023-01-28 08:30:56,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:30:56,942 INFO L130 PetriNetUnfolder]: 536/777 cut-off events. [2023-01-28 08:30:56,942 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2023-01-28 08:30:56,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 777 events. 536/777 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2425 event pairs, 154 based on Foata normal form. 1/625 useless extension candidates. Maximal degree in co-relation 1285. Up to 288 conditions per place. [2023-01-28 08:30:56,948 INFO L137 encePairwiseOnDemand]: 594/602 looper letters, 69 selfloop transitions, 7 changer transitions 17/93 dead transitions. [2023-01-28 08:30:56,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 93 transitions, 454 flow [2023-01-28 08:30:56,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 08:30:56,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 08:30:56,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1136 transitions. [2023-01-28 08:30:56,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37740863787375417 [2023-01-28 08:30:56,951 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1136 transitions. [2023-01-28 08:30:56,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1136 transitions. [2023-01-28 08:30:56,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:30:56,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1136 transitions. [2023-01-28 08:30:56,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 227.2) internal successors, (1136), 5 states have internal predecessors, (1136), 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) [2023-01-28 08:30:56,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 602.0) internal successors, (3612), 6 states have internal predecessors, (3612), 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) [2023-01-28 08:30:56,958 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 602.0) internal successors, (3612), 6 states have internal predecessors, (3612), 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) [2023-01-28 08:30:56,958 INFO L175 Difference]: Start difference. First operand has 34 places, 34 transitions, 112 flow. Second operand 5 states and 1136 transitions. [2023-01-28 08:30:56,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 93 transitions, 454 flow [2023-01-28 08:30:56,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 93 transitions, 438 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-01-28 08:30:56,962 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 143 flow [2023-01-28 08:30:56,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=143, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2023-01-28 08:30:56,962 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2023-01-28 08:30:56,963 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 143 flow [2023-01-28 08:30:56,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 213.0) internal successors, (1065), 5 states have internal predecessors, (1065), 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) [2023-01-28 08:30:56,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:30:56,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 08:30:56,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 08:30:57,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 08:30:57,170 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 08:30:57,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:30:57,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1369199754, now seen corresponding path program 1 times [2023-01-28 08:30:57,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:30:57,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518789637] [2023-01-28 08:30:57,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:30:57,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:30:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:30:57,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 08:30:57,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:30:57,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518789637] [2023-01-28 08:30:57,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518789637] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 08:30:57,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935551687] [2023-01-28 08:30:57,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:30:57,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 08:30:57,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 08:30:57,415 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) [2023-01-28 08:30:57,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 08:30:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:30:57,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-28 08:30:57,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 08:30:57,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 08:30:57,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 08:30:57,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935551687] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 08:30:57,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 08:30:57,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-01-28 08:30:57,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455928071] [2023-01-28 08:30:57,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:30:57,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 08:30:57,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:30:57,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 08:30:57,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-01-28 08:30:57,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 602 [2023-01-28 08:30:57,588 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 143 flow. Second operand has 5 states, 5 states have (on average 208.0) internal successors, (1040), 5 states have internal predecessors, (1040), 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) [2023-01-28 08:30:57,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:30:57,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 602 [2023-01-28 08:30:57,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:30:57,741 INFO L130 PetriNetUnfolder]: 896/1316 cut-off events. [2023-01-28 08:30:57,743 INFO L131 PetriNetUnfolder]: For 687/687 co-relation queries the response was YES. [2023-01-28 08:30:57,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3221 conditions, 1316 events. 896/1316 cut-off events. For 687/687 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4820 event pairs, 261 based on Foata normal form. 61/1145 useless extension candidates. Maximal degree in co-relation 3197. Up to 667 conditions per place. [2023-01-28 08:30:57,752 INFO L137 encePairwiseOnDemand]: 593/602 looper letters, 80 selfloop transitions, 13 changer transitions 3/96 dead transitions. [2023-01-28 08:30:57,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 96 transitions, 513 flow [2023-01-28 08:30:57,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 08:30:57,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 08:30:57,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1313 transitions. [2023-01-28 08:30:57,755 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3635105204872647 [2023-01-28 08:30:57,755 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1313 transitions. [2023-01-28 08:30:57,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1313 transitions. [2023-01-28 08:30:57,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:30:57,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1313 transitions. [2023-01-28 08:30:57,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 218.83333333333334) internal successors, (1313), 6 states have internal predecessors, (1313), 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) [2023-01-28 08:30:57,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 602.0) internal successors, (4214), 7 states have internal predecessors, (4214), 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) [2023-01-28 08:30:57,763 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 602.0) internal successors, (4214), 7 states have internal predecessors, (4214), 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) [2023-01-28 08:30:57,763 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 143 flow. Second operand 6 states and 1313 transitions. [2023-01-28 08:30:57,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 96 transitions, 513 flow [2023-01-28 08:30:57,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 96 transitions, 509 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-01-28 08:30:57,767 INFO L231 Difference]: Finished difference. Result has 46 places, 44 transitions, 236 flow [2023-01-28 08:30:57,768 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=236, PETRI_PLACES=46, PETRI_TRANSITIONS=44} [2023-01-28 08:30:57,768 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 15 predicate places. [2023-01-28 08:30:57,768 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 44 transitions, 236 flow [2023-01-28 08:30:57,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 208.0) internal successors, (1040), 5 states have internal predecessors, (1040), 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) [2023-01-28 08:30:57,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:30:57,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 08:30:57,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-28 08:30:57,974 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,SelfDestructingSolverStorable2 [2023-01-28 08:30:57,975 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 08:30:57,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:30:57,975 INFO L85 PathProgramCache]: Analyzing trace with hash 581163285, now seen corresponding path program 1 times [2023-01-28 08:30:57,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:30:57,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520476922] [2023-01-28 08:30:57,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:30:57,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:30:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:30:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 08:30:58,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:30:58,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520476922] [2023-01-28 08:30:58,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520476922] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 08:30:58,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612041253] [2023-01-28 08:30:58,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:30:58,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 08:30:58,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 08:30:58,125 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) [2023-01-28 08:30:58,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 08:30:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:30:58,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 11 conjunts are in the unsatisfiable core [2023-01-28 08:30:58,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 08:30:58,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 08:30:58,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 08:30:58,662 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 08:30:58,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 167 treesize of output 222 [2023-01-28 08:30:58,860 INFO L321 Elim1Store]: treesize reduction 85, result has 62.9 percent of original size [2023-01-28 08:30:58,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 186 treesize of output 281 [2023-01-28 08:30:59,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 08:30:59,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612041253] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 08:30:59,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 08:30:59,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 12 [2023-01-28 08:30:59,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142056551] [2023-01-28 08:30:59,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:30:59,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 08:30:59,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:30:59,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 08:30:59,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-01-28 08:30:59,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 602 [2023-01-28 08:30:59,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 44 transitions, 236 flow. Second operand has 6 states, 6 states have (on average 196.33333333333334) internal successors, (1178), 6 states have internal predecessors, (1178), 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) [2023-01-28 08:30:59,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:30:59,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 602 [2023-01-28 08:30:59,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:30:59,635 INFO L130 PetriNetUnfolder]: 1680/2510 cut-off events. [2023-01-28 08:30:59,635 INFO L131 PetriNetUnfolder]: For 2544/2544 co-relation queries the response was YES. [2023-01-28 08:30:59,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6941 conditions, 2510 events. 1680/2510 cut-off events. For 2544/2544 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 11146 event pairs, 261 based on Foata normal form. 2/2102 useless extension candidates. Maximal degree in co-relation 5554. Up to 1282 conditions per place. [2023-01-28 08:30:59,645 INFO L137 encePairwiseOnDemand]: 596/602 looper letters, 75 selfloop transitions, 14 changer transitions 1/90 dead transitions. [2023-01-28 08:30:59,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 90 transitions, 613 flow [2023-01-28 08:30:59,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 08:30:59,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 08:30:59,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 839 transitions. [2023-01-28 08:30:59,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.348421926910299 [2023-01-28 08:30:59,647 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 839 transitions. [2023-01-28 08:30:59,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 839 transitions. [2023-01-28 08:30:59,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:30:59,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 839 transitions. [2023-01-28 08:30:59,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 209.75) internal successors, (839), 4 states have internal predecessors, (839), 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) [2023-01-28 08:30:59,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 602.0) internal successors, (3010), 5 states have internal predecessors, (3010), 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) [2023-01-28 08:30:59,652 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 602.0) internal successors, (3010), 5 states have internal predecessors, (3010), 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) [2023-01-28 08:30:59,652 INFO L175 Difference]: Start difference. First operand has 46 places, 44 transitions, 236 flow. Second operand 4 states and 839 transitions. [2023-01-28 08:30:59,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 90 transitions, 613 flow [2023-01-28 08:30:59,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 90 transitions, 595 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-01-28 08:30:59,655 INFO L231 Difference]: Finished difference. Result has 52 places, 57 transitions, 372 flow [2023-01-28 08:30:59,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=372, PETRI_PLACES=52, PETRI_TRANSITIONS=57} [2023-01-28 08:30:59,656 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 21 predicate places. [2023-01-28 08:30:59,656 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 57 transitions, 372 flow [2023-01-28 08:30:59,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.33333333333334) internal successors, (1178), 6 states have internal predecessors, (1178), 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) [2023-01-28 08:30:59,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:30:59,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 08:30:59,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 08:30:59,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 08:30:59,861 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 08:30:59,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:30:59,862 INFO L85 PathProgramCache]: Analyzing trace with hash -311930904, now seen corresponding path program 1 times [2023-01-28 08:30:59,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:30:59,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668958517] [2023-01-28 08:30:59,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:30:59,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:30:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:30:59,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 08:30:59,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:30:59,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668958517] [2023-01-28 08:30:59,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668958517] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 08:30:59,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 08:30:59,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 08:30:59,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75127875] [2023-01-28 08:30:59,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:30:59,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 08:30:59,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:30:59,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 08:30:59,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 08:30:59,937 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 602 [2023-01-28 08:30:59,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 57 transitions, 372 flow. Second operand has 4 states, 4 states have (on average 220.25) internal successors, (881), 4 states have internal predecessors, (881), 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) [2023-01-28 08:30:59,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:30:59,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 602 [2023-01-28 08:30:59,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:31:00,245 INFO L130 PetriNetUnfolder]: 2829/4372 cut-off events. [2023-01-28 08:31:00,245 INFO L131 PetriNetUnfolder]: For 9703/9703 co-relation queries the response was YES. [2023-01-28 08:31:00,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13235 conditions, 4372 events. 2829/4372 cut-off events. For 9703/9703 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 22502 event pairs, 1934 based on Foata normal form. 376/4746 useless extension candidates. Maximal degree in co-relation 8290. Up to 1611 conditions per place. [2023-01-28 08:31:00,265 INFO L137 encePairwiseOnDemand]: 595/602 looper letters, 111 selfloop transitions, 6 changer transitions 2/119 dead transitions. [2023-01-28 08:31:00,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 119 transitions, 924 flow [2023-01-28 08:31:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 08:31:00,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 08:31:00,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1158 transitions. [2023-01-28 08:31:00,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3847176079734219 [2023-01-28 08:31:00,268 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1158 transitions. [2023-01-28 08:31:00,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1158 transitions. [2023-01-28 08:31:00,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:31:00,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1158 transitions. [2023-01-28 08:31:00,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 231.6) internal successors, (1158), 5 states have internal predecessors, (1158), 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) [2023-01-28 08:31:00,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 602.0) internal successors, (3612), 6 states have internal predecessors, (3612), 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) [2023-01-28 08:31:00,273 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 602.0) internal successors, (3612), 6 states have internal predecessors, (3612), 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) [2023-01-28 08:31:00,273 INFO L175 Difference]: Start difference. First operand has 52 places, 57 transitions, 372 flow. Second operand 5 states and 1158 transitions. [2023-01-28 08:31:00,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 119 transitions, 924 flow [2023-01-28 08:31:00,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 119 transitions, 920 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-01-28 08:31:00,280 INFO L231 Difference]: Finished difference. Result has 58 places, 57 transitions, 413 flow [2023-01-28 08:31:00,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=413, PETRI_PLACES=58, PETRI_TRANSITIONS=57} [2023-01-28 08:31:00,282 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 27 predicate places. [2023-01-28 08:31:00,282 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 57 transitions, 413 flow [2023-01-28 08:31:00,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 220.25) internal successors, (881), 4 states have internal predecessors, (881), 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) [2023-01-28 08:31:00,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:31:00,283 INFO L208 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] [2023-01-28 08:31:00,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 08:31:00,283 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 08:31:00,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:31:00,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1484325975, now seen corresponding path program 1 times [2023-01-28 08:31:00,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:31:00,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920196703] [2023-01-28 08:31:00,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:31:00,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:31:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:31:00,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 08:31:00,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:31:00,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920196703] [2023-01-28 08:31:00,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920196703] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 08:31:00,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 08:31:00,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 08:31:00,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540154683] [2023-01-28 08:31:00,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:31:00,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 08:31:00,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:31:00,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 08:31:00,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 08:31:00,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 602 [2023-01-28 08:31:00,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 57 transitions, 413 flow. Second operand has 4 states, 4 states have (on average 220.5) internal successors, (882), 4 states have internal predecessors, (882), 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) [2023-01-28 08:31:00,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:31:00,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 602 [2023-01-28 08:31:00,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:31:00,584 INFO L130 PetriNetUnfolder]: 1379/2138 cut-off events. [2023-01-28 08:31:00,584 INFO L131 PetriNetUnfolder]: For 5296/5296 co-relation queries the response was YES. [2023-01-28 08:31:00,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6941 conditions, 2138 events. 1379/2138 cut-off events. For 5296/5296 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9528 event pairs, 885 based on Foata normal form. 88/2226 useless extension candidates. Maximal degree in co-relation 5208. Up to 1478 conditions per place. [2023-01-28 08:31:00,593 INFO L137 encePairwiseOnDemand]: 595/602 looper letters, 93 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2023-01-28 08:31:00,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 99 transitions, 755 flow [2023-01-28 08:31:00,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 08:31:00,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 08:31:00,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1151 transitions. [2023-01-28 08:31:00,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3823920265780731 [2023-01-28 08:31:00,596 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1151 transitions. [2023-01-28 08:31:00,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1151 transitions. [2023-01-28 08:31:00,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:31:00,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1151 transitions. [2023-01-28 08:31:00,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 230.2) internal successors, (1151), 5 states have internal predecessors, (1151), 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) [2023-01-28 08:31:00,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 602.0) internal successors, (3612), 6 states have internal predecessors, (3612), 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) [2023-01-28 08:31:00,601 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 602.0) internal successors, (3612), 6 states have internal predecessors, (3612), 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) [2023-01-28 08:31:00,601 INFO L175 Difference]: Start difference. First operand has 58 places, 57 transitions, 413 flow. Second operand 5 states and 1151 transitions. [2023-01-28 08:31:00,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 99 transitions, 755 flow [2023-01-28 08:31:00,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 99 transitions, 709 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-01-28 08:31:00,608 INFO L231 Difference]: Finished difference. Result has 57 places, 56 transitions, 381 flow [2023-01-28 08:31:00,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=381, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2023-01-28 08:31:00,609 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 26 predicate places. [2023-01-28 08:31:00,610 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 56 transitions, 381 flow [2023-01-28 08:31:00,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 220.5) internal successors, (882), 4 states have internal predecessors, (882), 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) [2023-01-28 08:31:00,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:31:00,610 INFO L208 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] [2023-01-28 08:31:00,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 08:31:00,610 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 08:31:00,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:31:00,611 INFO L85 PathProgramCache]: Analyzing trace with hash 13136424, now seen corresponding path program 1 times [2023-01-28 08:31:00,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:31:00,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230854129] [2023-01-28 08:31:00,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:31:00,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:31:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:31:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 08:31:00,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:31:00,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230854129] [2023-01-28 08:31:00,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230854129] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 08:31:00,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 08:31:00,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 08:31:00,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143603670] [2023-01-28 08:31:00,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:31:00,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 08:31:00,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:31:00,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 08:31:00,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-01-28 08:31:00,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 602 [2023-01-28 08:31:00,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 56 transitions, 381 flow. Second operand has 5 states, 5 states have (on average 219.4) internal successors, (1097), 5 states have internal predecessors, (1097), 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) [2023-01-28 08:31:00,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:31:00,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 602 [2023-01-28 08:31:00,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:31:00,911 INFO L130 PetriNetUnfolder]: 1607/2478 cut-off events. [2023-01-28 08:31:00,911 INFO L131 PetriNetUnfolder]: For 4682/4682 co-relation queries the response was YES. [2023-01-28 08:31:00,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7804 conditions, 2478 events. 1607/2478 cut-off events. For 4682/4682 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 11362 event pairs, 853 based on Foata normal form. 40/2518 useless extension candidates. Maximal degree in co-relation 6080. Up to 1477 conditions per place. [2023-01-28 08:31:00,921 INFO L137 encePairwiseOnDemand]: 595/602 looper letters, 61 selfloop transitions, 10 changer transitions 43/114 dead transitions. [2023-01-28 08:31:00,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 114 transitions, 850 flow [2023-01-28 08:31:00,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 08:31:00,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 08:31:00,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1372 transitions. [2023-01-28 08:31:00,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3798449612403101 [2023-01-28 08:31:00,924 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1372 transitions. [2023-01-28 08:31:00,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1372 transitions. [2023-01-28 08:31:00,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:31:00,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1372 transitions. [2023-01-28 08:31:00,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.66666666666666) internal successors, (1372), 6 states have internal predecessors, (1372), 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) [2023-01-28 08:31:00,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 602.0) internal successors, (4214), 7 states have internal predecessors, (4214), 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) [2023-01-28 08:31:00,930 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 602.0) internal successors, (4214), 7 states have internal predecessors, (4214), 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) [2023-01-28 08:31:00,930 INFO L175 Difference]: Start difference. First operand has 57 places, 56 transitions, 381 flow. Second operand 6 states and 1372 transitions. [2023-01-28 08:31:00,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 114 transitions, 850 flow [2023-01-28 08:31:00,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 114 transitions, 838 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 08:31:00,935 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 365 flow [2023-01-28 08:31:00,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=365, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2023-01-28 08:31:00,936 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 30 predicate places. [2023-01-28 08:31:00,936 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 365 flow [2023-01-28 08:31:00,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 219.4) internal successors, (1097), 5 states have internal predecessors, (1097), 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) [2023-01-28 08:31:00,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:31:00,937 INFO L208 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] [2023-01-28 08:31:00,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 08:31:00,937 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 08:31:00,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:31:00,937 INFO L85 PathProgramCache]: Analyzing trace with hash 300584546, now seen corresponding path program 1 times [2023-01-28 08:31:00,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:31:00,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783915044] [2023-01-28 08:31:00,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:31:00,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:31:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:31:01,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 08:31:01,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:31:01,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783915044] [2023-01-28 08:31:01,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783915044] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 08:31:01,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 08:31:01,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 08:31:01,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458972971] [2023-01-28 08:31:01,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:31:01,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 08:31:01,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:31:01,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 08:31:01,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-01-28 08:31:01,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 602 [2023-01-28 08:31:01,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 365 flow. Second operand has 5 states, 5 states have (on average 219.4) internal successors, (1097), 5 states have internal predecessors, (1097), 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) [2023-01-28 08:31:01,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:31:01,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 602 [2023-01-28 08:31:01,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:31:01,279 INFO L130 PetriNetUnfolder]: 2159/3261 cut-off events. [2023-01-28 08:31:01,279 INFO L131 PetriNetUnfolder]: For 8565/8565 co-relation queries the response was YES. [2023-01-28 08:31:01,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11073 conditions, 3261 events. 2159/3261 cut-off events. For 8565/8565 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 15104 event pairs, 810 based on Foata normal form. 86/3347 useless extension candidates. Maximal degree in co-relation 9988. Up to 1517 conditions per place. [2023-01-28 08:31:01,298 INFO L137 encePairwiseOnDemand]: 596/602 looper letters, 91 selfloop transitions, 9 changer transitions 1/101 dead transitions. [2023-01-28 08:31:01,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 101 transitions, 855 flow [2023-01-28 08:31:01,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 08:31:01,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 08:31:01,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1145 transitions. [2023-01-28 08:31:01,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3803986710963455 [2023-01-28 08:31:01,301 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1145 transitions. [2023-01-28 08:31:01,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1145 transitions. [2023-01-28 08:31:01,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:31:01,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1145 transitions. [2023-01-28 08:31:01,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 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) [2023-01-28 08:31:01,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 602.0) internal successors, (3612), 6 states have internal predecessors, (3612), 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) [2023-01-28 08:31:01,306 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 602.0) internal successors, (3612), 6 states have internal predecessors, (3612), 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) [2023-01-28 08:31:01,306 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 365 flow. Second operand 5 states and 1145 transitions. [2023-01-28 08:31:01,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 101 transitions, 855 flow [2023-01-28 08:31:01,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 101 transitions, 799 flow, removed 21 selfloop flow, removed 6 redundant places. [2023-01-28 08:31:01,315 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 401 flow [2023-01-28 08:31:01,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=401, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2023-01-28 08:31:01,317 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 27 predicate places. [2023-01-28 08:31:01,317 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 401 flow [2023-01-28 08:31:01,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 219.4) internal successors, (1097), 5 states have internal predecessors, (1097), 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) [2023-01-28 08:31:01,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:31:01,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 08:31:01,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 08:31:01,317 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 08:31:01,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:31:01,318 INFO L85 PathProgramCache]: Analyzing trace with hash -642179503, now seen corresponding path program 1 times [2023-01-28 08:31:01,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:31:01,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619740828] [2023-01-28 08:31:01,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:31:01,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:31:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:31:01,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 08:31:01,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:31:01,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619740828] [2023-01-28 08:31:01,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619740828] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 08:31:01,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425260911] [2023-01-28 08:31:01,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:31:01,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 08:31:01,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 08:31:01,475 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) [2023-01-28 08:31:01,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 08:31:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:31:01,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-28 08:31:01,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 08:31:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 08:31:01,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 08:31:01,929 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 08:31:01,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 167 treesize of output 222 [2023-01-28 08:31:02,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 08:31:02,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425260911] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 08:31:02,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 08:31:02,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 11 [2023-01-28 08:31:02,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972621244] [2023-01-28 08:31:02,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 08:31:02,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 08:31:02,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 08:31:02,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 08:31:02,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-01-28 08:31:02,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 602 [2023-01-28 08:31:02,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 401 flow. Second operand has 6 states, 6 states have (on average 212.83333333333334) internal successors, (1277), 6 states have internal predecessors, (1277), 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) [2023-01-28 08:31:02,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 08:31:02,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 602 [2023-01-28 08:31:02,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 08:31:02,374 INFO L130 PetriNetUnfolder]: 2312/3546 cut-off events. [2023-01-28 08:31:02,375 INFO L131 PetriNetUnfolder]: For 7720/7720 co-relation queries the response was YES. [2023-01-28 08:31:02,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12013 conditions, 3546 events. 2312/3546 cut-off events. For 7720/7720 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 17305 event pairs, 667 based on Foata normal form. 6/3552 useless extension candidates. Maximal degree in co-relation 10955. Up to 1306 conditions per place. [2023-01-28 08:31:02,387 INFO L137 encePairwiseOnDemand]: 595/602 looper letters, 81 selfloop transitions, 11 changer transitions 20/112 dead transitions. [2023-01-28 08:31:02,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 112 transitions, 927 flow [2023-01-28 08:31:02,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 08:31:02,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 08:31:02,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1542 transitions. [2023-01-28 08:31:02,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3659231134314191 [2023-01-28 08:31:02,390 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1542 transitions. [2023-01-28 08:31:02,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1542 transitions. [2023-01-28 08:31:02,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 08:31:02,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1542 transitions. [2023-01-28 08:31:02,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 220.28571428571428) internal successors, (1542), 7 states have internal predecessors, (1542), 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) [2023-01-28 08:31:02,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 602.0) internal successors, (4816), 8 states have internal predecessors, (4816), 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) [2023-01-28 08:31:02,406 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 602.0) internal successors, (4816), 8 states have internal predecessors, (4816), 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) [2023-01-28 08:31:02,407 INFO L175 Difference]: Start difference. First operand has 58 places, 54 transitions, 401 flow. Second operand 7 states and 1542 transitions. [2023-01-28 08:31:02,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 112 transitions, 927 flow [2023-01-28 08:31:02,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 112 transitions, 915 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-01-28 08:31:02,415 INFO L231 Difference]: Finished difference. Result has 66 places, 54 transitions, 431 flow [2023-01-28 08:31:02,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=602, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=431, PETRI_PLACES=66, PETRI_TRANSITIONS=54} [2023-01-28 08:31:02,416 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 35 predicate places. [2023-01-28 08:31:02,416 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 54 transitions, 431 flow [2023-01-28 08:31:02,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.83333333333334) internal successors, (1277), 6 states have internal predecessors, (1277), 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) [2023-01-28 08:31:02,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:31:02,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 08:31:02,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-28 08:31:02,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 08:31:02,623 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 08:31:02,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:31:02,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1317452410, now seen corresponding path program 1 times [2023-01-28 08:31:02,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:31:02,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693918959] [2023-01-28 08:31:02,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:31:02,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:31:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:31:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 08:31:03,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 08:31:03,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693918959] [2023-01-28 08:31:03,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693918959] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 08:31:03,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709159379] [2023-01-28 08:31:03,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:31:03,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 08:31:03,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 08:31:03,125 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) [2023-01-28 08:31:03,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-28 08:31:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 08:31:03,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 53 conjunts are in the unsatisfiable core [2023-01-28 08:31:03,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 08:31:03,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-28 08:31:03,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-01-28 08:31:03,398 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-28 08:31:03,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-01-28 08:31:03,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-01-28 08:31:03,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-28 08:31:03,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-28 08:31:03,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-01-28 08:31:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 08:31:03,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 08:31:04,615 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse17 (* c_~i_BC~0 4)) (.cse18 (* c_~i_AB~0 4)) (.cse19 (* c_~i_AC~0 4))) (let ((.cse0 (= c_~i_AB~0 c_~i_AC~0)) (.cse11 (< c_~i_AC~0 c_~Cn~0)) (.cse5 (+ c_~A~0.offset .cse19)) (.cse6 (+ c_~C~0.offset .cse19)) (.cse9 (+ c_~B~0.offset .cse18)) (.cse10 (+ c_~A~0.offset .cse18)) (.cse2 (+ c_~C~0.offset .cse17)) (.cse4 (+ .cse17 c_~B~0.offset))) (and (or .cse0 (forall ((v_ArrVal_404 (Array Int Int)) (~A~0.base Int)) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404))) (let ((.cse1 (select .cse3 c_~C~0.base))) (or (< (select .cse1 .cse2) (select (select .cse3 c_~B~0.base) .cse4)) (<= (select (select .cse3 ~A~0.base) .cse5) (select .cse1 .cse6))))))) (or (forall ((v_ArrVal_404 (Array Int Int)) (~A~0.base Int)) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404))) (let ((.cse8 (select .cse7 c_~B~0.base))) (or (< (select (select .cse7 c_~C~0.base) .cse2) (select .cse8 .cse4)) (< (select .cse8 .cse9) (select (select .cse7 ~A~0.base) .cse10)))))) .cse11) (or .cse0 (forall ((v_ArrVal_404 (Array Int Int))) (let ((.cse12 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404))) (< (select (select .cse12 c_~C~0.base) .cse2) (select (select .cse12 c_~B~0.base) .cse4)))) .cse11) (forall ((v_ArrVal_404 (Array Int Int))) (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404))) (let ((.cse14 (select .cse16 c_~C~0.base)) (.cse15 (select .cse16 c_~B~0.base))) (or (forall ((~A~0.base Int)) (let ((.cse13 (select .cse16 ~A~0.base))) (or (<= (select .cse13 .cse5) (select .cse14 .cse6)) (< (select .cse15 .cse9) (select .cse13 .cse10))))) (< (select .cse14 .cse2) (select .cse15 .cse4))))))))) is different from false [2023-01-28 08:31:04,919 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse17 (* c_~i_AB~0 4)) (.cse18 (* c_~i_BC~0 4)) (.cse19 (* c_~i_AC~0 4))) (let ((.cse0 (= c_~i_AB~0 c_~i_AC~0)) (.cse5 (+ c_~A~0.offset .cse19)) (.cse6 (+ .cse19 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse2 (+ .cse18 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset|)) (.cse4 (+ .cse18 c_~B~0.offset)) (.cse10 (+ c_~B~0.offset .cse17)) (.cse12 (+ c_~A~0.offset .cse17)) (.cse8 (< c_~i_AC~0 c_~Cn~0))) (and (or .cse0 (forall ((v_ArrVal_403 (Array Int Int)) (v_ArrVal_402 (Array Int Int)) (v_ArrVal_404 (Array Int Int)) (~A~0.base Int)) (let ((.cse3 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_402) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_403) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404))) (let ((.cse1 (select .cse3 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|))) (or (< (select .cse1 .cse2) (select (select .cse3 c_~B~0.base) .cse4)) (<= (select (select .cse3 ~A~0.base) .cse5) (select .cse1 .cse6))))))) (or .cse0 (forall ((v_ArrVal_403 (Array Int Int)) (v_ArrVal_402 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (let ((.cse7 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_402) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_403) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404))) (< (select (select .cse7 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) .cse2) (select (select .cse7 c_~B~0.base) .cse4)))) .cse8) (forall ((v_ArrVal_403 (Array Int Int)) (v_ArrVal_402 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (let ((.cse14 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_402) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_403) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404))) (let ((.cse13 (select .cse14 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|)) (.cse9 (select .cse14 c_~B~0.base))) (or (forall ((~A~0.base Int)) (let ((.cse11 (select .cse14 ~A~0.base))) (or (< (select .cse9 .cse10) (select .cse11 .cse12)) (<= (select .cse11 .cse5) (select .cse13 .cse6))))) (< (select .cse13 .cse2) (select .cse9 .cse4)))))) (or (forall ((v_ArrVal_403 (Array Int Int)) (v_ArrVal_402 (Array Int Int)) (v_ArrVal_404 (Array Int Int)) (~A~0.base Int)) (let ((.cse15 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_402) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_403) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_404))) (let ((.cse16 (select .cse15 c_~B~0.base))) (or (< (select (select .cse15 |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base|) .cse2) (select .cse16 .cse4)) (< (select .cse16 .cse10) (select (select .cse15 ~A~0.base) .cse12)))))) .cse8)))) is different from false [2023-01-28 08:31:05,894 INFO L321 Elim1Store]: treesize reduction 23, result has 60.3 percent of original size [2023-01-28 08:31:05,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 99 treesize of output 70 [2023-01-28 08:31:05,917 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 08:31:05,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 12048 treesize of output 11180 [2023-01-28 08:31:06,103 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 08:31:06,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1382 treesize of output 1230 [2023-01-28 08:31:06,133 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 08:31:06,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1222 treesize of output 1150 [2023-01-28 08:31:06,160 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 08:31:06,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1142 treesize of output 830 [2023-01-28 08:31:17,154 INFO L321 Elim1Store]: treesize reduction 23, result has 60.3 percent of original size [2023-01-28 08:31:17,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 199 treesize of output 105 [2023-01-28 08:31:17,294 INFO L321 Elim1Store]: treesize reduction 4, result has 97.2 percent of original size [2023-01-28 08:31:17,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 36101 treesize of output 33545 [2023-01-28 08:31:17,721 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 08:31:17,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2763 treesize of output 2511 [2023-01-28 08:31:17,810 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 08:31:17,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2443 treesize of output 2351 [2023-01-28 08:31:17,905 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-28 08:31:17,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 2283 treesize of output 1711 Received shutdown request... [2023-01-28 08:44:11,329 WARN L238 SmtUtils]: Removed 2 from assertion stack [2023-01-28 08:44:11,331 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 08:44:11,332 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 08:44:11,335 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-28 08:44:11,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-28 08:44:11,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-01-28 08:44:11,532 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 13ms.. [2023-01-28 08:44:11,533 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 08:44:11,533 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 08:44:11,533 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-28 08:44:11,533 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 08:44:11,536 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 08:44:11,536 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 08:44:11,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 08:44:11 BasicIcfg [2023-01-28 08:44:11,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 08:44:11,538 INFO L158 Benchmark]: Toolchain (without parser) took 833309.94ms. Allocated memory was 360.7MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 307.8MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 942.3MB. Max. memory is 16.0GB. [2023-01-28 08:44:11,539 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 08:44:11,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.52ms. Allocated memory is still 360.7MB. Free memory was 307.6MB in the beginning and 295.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 08:44:11,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.26ms. Allocated memory is still 360.7MB. Free memory was 295.7MB in the beginning and 293.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 08:44:11,539 INFO L158 Benchmark]: Boogie Preprocessor took 22.39ms. Allocated memory is still 360.7MB. Free memory was 293.3MB in the beginning and 291.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 08:44:11,539 INFO L158 Benchmark]: RCFGBuilder took 433.78ms. Allocated memory is still 360.7MB. Free memory was 291.4MB in the beginning and 317.0MB in the end (delta: -25.6MB). Peak memory consumption was 10.9MB. Max. memory is 16.0GB. [2023-01-28 08:44:11,540 INFO L158 Benchmark]: TraceAbstraction took 832654.10ms. Allocated memory was 360.7MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 316.3MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 948.2MB. Max. memory is 16.0GB. [2023-01-28 08:44:11,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 164.52ms. Allocated memory is still 360.7MB. Free memory was 307.6MB in the beginning and 295.7MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 30.26ms. Allocated memory is still 360.7MB. Free memory was 295.7MB in the beginning and 293.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.39ms. Allocated memory is still 360.7MB. Free memory was 293.3MB in the beginning and 291.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 433.78ms. Allocated memory is still 360.7MB. Free memory was 291.4MB in the beginning and 317.0MB in the end (delta: -25.6MB). Peak memory consumption was 10.9MB. Max. memory is 16.0GB. * TraceAbstraction took 832654.10ms. Allocated memory was 360.7MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 316.3MB in the beginning and 1.4GB in the end (delta: -1.1GB). Peak memory consumption was 948.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9s, 254 PlacesBefore, 31 PlacesAfterwards, 274 TransitionsBefore, 29 TransitionsAfterwards, 2688 CoEnabledTransitionPairs, 8 FixpointIterations, 174 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 60 TrivialYvCompositions, 14 ConcurrentYvCompositions, 22 ChoiceCompositions, 315 TotalNumberOfCompositions, 3952 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3033, independent: 2940, independent conditional: 0, independent unconditional: 2940, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1591, independent: 1569, independent conditional: 0, independent unconditional: 1569, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3033, independent: 1371, independent conditional: 0, independent unconditional: 1371, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 1591, unknown conditional: 0, unknown unconditional: 1591] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, 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 - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 13ms.. - TimeoutResultAtElement [Line: 94]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 13ms.. - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 13ms.. - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 24 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 13ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 303 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 832.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 517 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1072 IncrementalHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 0 mSDtfsCounter, 1072 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 121 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=431occurred in iteration=9, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 30.7s InterpolantComputationTime, 272 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 2793 SizeOfPredicates, 55 NumberOfNonLiveVariables, 1061 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 18/25 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown