/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 22:55:33,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 22:55:33,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 22:55:33,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-27 22:55:33,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 22:55:33,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 22:55:33,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 22:55:33,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 22:55:33,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 22:55:33,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 22:55:33,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 22:55:33,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 22:55:33,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 22:55:33,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 22:55:33,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 22:55:33,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 22:55:33,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 22:55:33,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 22:55:33,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 22:55:33,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 22:55:33,230 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 [2023-01-27 22:55:33,251 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 22:55:33,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 22:55:33,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 22:55:33,253 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 22:55:33,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 22:55:33,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 22:55:33,253 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 22:55:33,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 22:55:33,254 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 22:55:33,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 22:55:33,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 22:55:33,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 22:55:33,255 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 22:55:33,255 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 22:55:33,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 22:55:33,255 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 22:55:33,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 22:55:33,255 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 22:55:33,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 22:55:33,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 22:55:33,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 22:55:33,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 22:55:33,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 22:55:33,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 22:55:33,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 22:55:33,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 22:55:33,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 22:55:33,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 22:55:33,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 22:55:33,261 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 22:55:33,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 22:55:33,261 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 22:55:33,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 22:55:33,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 22:55:33,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 22:55:33,428 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 22:55:33,428 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 22:55:33,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2023-01-27 22:55:34,509 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 22:55:34,653 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 22:55:34,654 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-three-array-max.wvr.c [2023-01-27 22:55:34,665 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc45f4946/44b19eb9985a4441a5ef65f3746af2e5/FLAG0ffe240cd [2023-01-27 22:55:34,674 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc45f4946/44b19eb9985a4441a5ef65f3746af2e5 [2023-01-27 22:55:34,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 22:55:34,677 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 22:55:34,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 22:55:34,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 22:55:34,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 22:55:34,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411d5ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34, skipping insertion in model container [2023-01-27 22:55:34,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 22:55:34,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 22:55:34,805 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/popl20-three-array-max.wvr.c[2823,2836] [2023-01-27 22:55:34,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 22:55:34,817 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 22:55:34,832 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/popl20-three-array-max.wvr.c[2823,2836] [2023-01-27 22:55:34,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 22:55:34,840 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 22:55:34,840 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-27 22:55:34,844 INFO L208 MainTranslator]: Completed translation [2023-01-27 22:55:34,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34 WrapperNode [2023-01-27 22:55:34,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 22:55:34,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 22:55:34,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 22:55:34,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 22:55:34,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,880 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 236 [2023-01-27 22:55:34,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 22:55:34,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 22:55:34,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 22:55:34,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 22:55:34,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,901 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 22:55:34,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 22:55:34,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 22:55:34,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 22:55:34,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (1/1) ... [2023-01-27 22:55:34,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 22:55:34,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:34,932 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) [2023-01-27 22:55:34,933 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 [2023-01-27 22:55:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 22:55:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 22:55:34,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 22:55:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 22:55:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-27 22:55:34,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-27 22:55:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-27 22:55:34,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-27 22:55:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-27 22:55:34,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-27 22:55:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 22:55:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-27 22:55:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-27 22:55:34,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 22:55:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 22:55:34,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 22:55:34,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 22:55:34,973 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 22:55:35,109 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 22:55:35,118 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 22:55:35,435 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 22:55:35,527 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 22:55:35,527 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-01-27 22:55:35,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 10:55:35 BoogieIcfgContainer [2023-01-27 22:55:35,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 22:55:35,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 22:55:35,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 22:55:35,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 22:55:35,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 10:55:34" (1/3) ... [2023-01-27 22:55:35,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64388dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 10:55:35, skipping insertion in model container [2023-01-27 22:55:35,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 10:55:34" (2/3) ... [2023-01-27 22:55:35,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64388dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 10:55:35, skipping insertion in model container [2023-01-27 22:55:35,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 10:55:35" (3/3) ... [2023-01-27 22:55:35,542 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2023-01-27 22:55:35,578 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 22:55:35,579 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 22:55:35,579 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 22:55:35,634 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-27 22:55:35,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 284 transitions, 592 flow [2023-01-27 22:55:35,757 INFO L130 PetriNetUnfolder]: 27/281 cut-off events. [2023-01-27 22:55:35,758 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 22:55:35,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 281 events. 27/281 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 209 event pairs, 0 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 222. Up to 3 conditions per place. [2023-01-27 22:55:35,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 284 transitions, 592 flow [2023-01-27 22:55:35,776 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 271 transitions, 560 flow [2023-01-27 22:55:35,778 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 22:55:35,792 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 271 transitions, 560 flow [2023-01-27 22:55:35,794 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 271 transitions, 560 flow [2023-01-27 22:55:35,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 271 transitions, 560 flow [2023-01-27 22:55:35,852 INFO L130 PetriNetUnfolder]: 27/271 cut-off events. [2023-01-27 22:55:35,852 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 22:55:35,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 271 events. 27/271 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 208 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 222. Up to 3 conditions per place. [2023-01-27 22:55:35,854 INFO L119 LiptonReduction]: Number of co-enabled transitions 2634 [2023-01-27 22:55:42,531 INFO L134 LiptonReduction]: Checked pairs total: 3780 [2023-01-27 22:55:42,531 INFO L136 LiptonReduction]: Total number of compositions: 300 [2023-01-27 22:55:42,551 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 22:55:42,557 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;@7ecb7fca, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 22:55:42,557 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-27 22:55:42,570 INFO L130 PetriNetUnfolder]: 8/33 cut-off events. [2023-01-27 22:55:42,570 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 22:55:42,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:42,571 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] [2023-01-27 22:55:42,572 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)] === [2023-01-27 22:55:42,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:42,576 INFO L85 PathProgramCache]: Analyzing trace with hash -823952724, now seen corresponding path program 1 times [2023-01-27 22:55:42,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:42,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452426703] [2023-01-27 22:55:42,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:42,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 22:55:42,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:42,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452426703] [2023-01-27 22:55:42,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452426703] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:55:42,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:55:42,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 22:55:42,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546788553] [2023-01-27 22:55:42,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:55:42,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 22:55:42,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:42,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 22:55:42,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 22:55:42,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 584 [2023-01-27 22:55:42,986 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 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) [2023-01-27 22:55:42,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:42,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 584 [2023-01-27 22:55:42,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:43,117 INFO L130 PetriNetUnfolder]: 692/923 cut-off events. [2023-01-27 22:55:43,117 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2023-01-27 22:55:43,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 923 events. 692/923 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3152 event pairs, 315 based on Foata normal form. 0/537 useless extension candidates. Maximal degree in co-relation 1616. Up to 907 conditions per place. [2023-01-27 22:55:43,125 INFO L137 encePairwiseOnDemand]: 581/584 looper letters, 30 selfloop transitions, 2 changer transitions 0/35 dead transitions. [2023-01-27 22:55:43,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 152 flow [2023-01-27 22:55:43,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 22:55:43,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 22:55:43,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2023-01-27 22:55:43,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3818493150684932 [2023-01-27 22:55:43,141 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 669 transitions. [2023-01-27 22:55:43,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 669 transitions. [2023-01-27 22:55:43,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:43,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 669 transitions. [2023-01-27 22:55:43,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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) [2023-01-27 22:55:43,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 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) [2023-01-27 22:55:43,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 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) [2023-01-27 22:55:43,158 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 86 flow. Second operand 3 states and 669 transitions. [2023-01-27 22:55:43,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 152 flow [2023-01-27 22:55:43,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 140 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-01-27 22:55:43,164 INFO L231 Difference]: Finished difference. Result has 33 places, 35 transitions, 86 flow [2023-01-27 22:55:43,166 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=33, PETRI_TRANSITIONS=35} [2023-01-27 22:55:43,172 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2023-01-27 22:55:43,172 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 35 transitions, 86 flow [2023-01-27 22:55:43,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 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) [2023-01-27 22:55:43,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:43,173 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] [2023-01-27 22:55:43,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 22:55:43,173 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)] === [2023-01-27 22:55:43,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:43,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1618956068, now seen corresponding path program 1 times [2023-01-27 22:55:43,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:43,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220578869] [2023-01-27 22:55:43,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:43,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:43,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-27 22:55:43,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:43,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220578869] [2023-01-27 22:55:43,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220578869] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:55:43,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:55:43,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 22:55:43,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529979145] [2023-01-27 22:55:43,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:55:43,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 22:55:43,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:43,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 22:55:43,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-27 22:55:43,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 584 [2023-01-27 22:55:43,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 35 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 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) [2023-01-27 22:55:43,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:43,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 584 [2023-01-27 22:55:43,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:43,467 INFO L130 PetriNetUnfolder]: 692/925 cut-off events. [2023-01-27 22:55:43,468 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-27 22:55:43,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1868 conditions, 925 events. 692/925 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3119 event pairs, 315 based on Foata normal form. 0/539 useless extension candidates. Maximal degree in co-relation 1857. Up to 906 conditions per place. [2023-01-27 22:55:43,471 INFO L137 encePairwiseOnDemand]: 577/584 looper letters, 28 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2023-01-27 22:55:43,472 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 37 transitions, 158 flow [2023-01-27 22:55:43,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 22:55:43,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 22:55:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 884 transitions. [2023-01-27 22:55:43,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3784246575342466 [2023-01-27 22:55:43,474 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 884 transitions. [2023-01-27 22:55:43,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 884 transitions. [2023-01-27 22:55:43,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:43,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 884 transitions. [2023-01-27 22:55:43,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 221.0) internal successors, (884), 4 states have internal predecessors, (884), 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) [2023-01-27 22:55:43,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 584.0) internal successors, (2920), 5 states have internal predecessors, (2920), 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) [2023-01-27 22:55:43,479 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 584.0) internal successors, (2920), 5 states have internal predecessors, (2920), 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) [2023-01-27 22:55:43,479 INFO L175 Difference]: Start difference. First operand has 33 places, 35 transitions, 86 flow. Second operand 4 states and 884 transitions. [2023-01-27 22:55:43,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 37 transitions, 158 flow [2023-01-27 22:55:43,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 37 transitions, 154 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 22:55:43,480 INFO L231 Difference]: Finished difference. Result has 36 places, 37 transitions, 110 flow [2023-01-27 22:55:43,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=110, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2023-01-27 22:55:43,481 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 0 predicate places. [2023-01-27 22:55:43,481 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 110 flow [2023-01-27 22:55:43,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 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) [2023-01-27 22:55:43,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:43,482 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, 1, 1] [2023-01-27 22:55:43,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 22:55:43,482 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)] === [2023-01-27 22:55:43,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:43,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1120690575, now seen corresponding path program 1 times [2023-01-27 22:55:43,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:43,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728334955] [2023-01-27 22:55:43,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:43,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:43,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-01-27 22:55:43,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:43,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728334955] [2023-01-27 22:55:43,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728334955] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 22:55:43,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 22:55:43,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 22:55:43,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307802415] [2023-01-27 22:55:43,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:55:43,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 22:55:43,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:43,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 22:55:43,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 22:55:43,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 584 [2023-01-27 22:55:43,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2023-01-27 22:55:43,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:43,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 584 [2023-01-27 22:55:43,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:43,898 INFO L130 PetriNetUnfolder]: 1277/1690 cut-off events. [2023-01-27 22:55:43,899 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-01-27 22:55:43,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3427 conditions, 1690 events. 1277/1690 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 6505 event pairs, 264 based on Foata normal form. 1/1003 useless extension candidates. Maximal degree in co-relation 3407. Up to 1016 conditions per place. [2023-01-27 22:55:43,906 INFO L137 encePairwiseOnDemand]: 579/584 looper letters, 51 selfloop transitions, 4 changer transitions 1/59 dead transitions. [2023-01-27 22:55:43,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 59 transitions, 271 flow [2023-01-27 22:55:43,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 22:55:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 22:55:43,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 783 transitions. [2023-01-27 22:55:43,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4469178082191781 [2023-01-27 22:55:43,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 783 transitions. [2023-01-27 22:55:43,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 783 transitions. [2023-01-27 22:55:43,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:43,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 783 transitions. [2023-01-27 22:55:43,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 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) [2023-01-27 22:55:43,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 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) [2023-01-27 22:55:43,912 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 584.0) internal successors, (2336), 4 states have internal predecessors, (2336), 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) [2023-01-27 22:55:43,912 INFO L175 Difference]: Start difference. First operand has 36 places, 37 transitions, 110 flow. Second operand 3 states and 783 transitions. [2023-01-27 22:55:43,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 59 transitions, 271 flow [2023-01-27 22:55:43,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 59 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 22:55:43,914 INFO L231 Difference]: Finished difference. Result has 38 places, 40 transitions, 135 flow [2023-01-27 22:55:43,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=38, PETRI_TRANSITIONS=40} [2023-01-27 22:55:43,914 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2023-01-27 22:55:43,914 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 40 transitions, 135 flow [2023-01-27 22:55:43,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2023-01-27 22:55:43,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:43,915 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, 1, 1, 1, 1] [2023-01-27 22:55:43,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 22:55:43,915 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)] === [2023-01-27 22:55:43,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:43,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1651521349, now seen corresponding path program 1 times [2023-01-27 22:55:43,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:43,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492456017] [2023-01-27 22:55:43,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:43,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:44,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 22:55:44,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:44,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492456017] [2023-01-27 22:55:44,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492456017] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:44,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114686148] [2023-01-27 22:55:44,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:44,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:44,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:44,073 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) [2023-01-27 22:55:44,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-27 22:55:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:44,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-27 22:55:44,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:44,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 22:55:44,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:55:44,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 22:55:44,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114686148] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 22:55:44,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 22:55:44,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-01-27 22:55:44,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217135866] [2023-01-27 22:55:44,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 22:55:44,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-01-27 22:55:44,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:44,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-01-27 22:55:44,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-01-27 22:55:44,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 584 [2023-01-27 22:55:44,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 40 transitions, 135 flow. Second operand has 12 states, 12 states have (on average 210.91666666666666) internal successors, (2531), 12 states have internal predecessors, (2531), 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) [2023-01-27 22:55:44,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:44,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 584 [2023-01-27 22:55:44,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:44,717 INFO L130 PetriNetUnfolder]: 1914/2647 cut-off events. [2023-01-27 22:55:44,718 INFO L131 PetriNetUnfolder]: For 239/239 co-relation queries the response was YES. [2023-01-27 22:55:44,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5875 conditions, 2647 events. 1914/2647 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 11676 event pairs, 666 based on Foata normal form. 0/1807 useless extension candidates. Maximal degree in co-relation 3542. Up to 1262 conditions per place. [2023-01-27 22:55:44,730 INFO L137 encePairwiseOnDemand]: 573/584 looper letters, 87 selfloop transitions, 17 changer transitions 0/106 dead transitions. [2023-01-27 22:55:44,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 106 transitions, 548 flow [2023-01-27 22:55:44,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 22:55:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 22:55:44,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1761 transitions. [2023-01-27 22:55:44,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3769263698630137 [2023-01-27 22:55:44,733 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1761 transitions. [2023-01-27 22:55:44,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1761 transitions. [2023-01-27 22:55:44,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:44,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1761 transitions. [2023-01-27 22:55:44,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.125) internal successors, (1761), 8 states have internal predecessors, (1761), 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) [2023-01-27 22:55:44,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 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) [2023-01-27 22:55:44,743 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 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) [2023-01-27 22:55:44,743 INFO L175 Difference]: Start difference. First operand has 38 places, 40 transitions, 135 flow. Second operand 8 states and 1761 transitions. [2023-01-27 22:55:44,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 106 transitions, 548 flow [2023-01-27 22:55:44,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 106 transitions, 538 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 22:55:44,747 INFO L231 Difference]: Finished difference. Result has 48 places, 51 transitions, 250 flow [2023-01-27 22:55:44,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=250, PETRI_PLACES=48, PETRI_TRANSITIONS=51} [2023-01-27 22:55:44,748 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2023-01-27 22:55:44,749 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 51 transitions, 250 flow [2023-01-27 22:55:44,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 210.91666666666666) internal successors, (2531), 12 states have internal predecessors, (2531), 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) [2023-01-27 22:55:44,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:44,751 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, 1, 1, 1, 1, 1] [2023-01-27 22:55:44,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-27 22:55:44,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:44,958 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)] === [2023-01-27 22:55:44,959 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:44,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1450108102, now seen corresponding path program 1 times [2023-01-27 22:55:44,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:44,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921214099] [2023-01-27 22:55:44,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:44,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:45,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 22:55:45,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:45,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921214099] [2023-01-27 22:55:45,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921214099] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:45,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113027823] [2023-01-27 22:55:45,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:45,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:45,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:45,117 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) [2023-01-27 22:55:45,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-27 22:55:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:45,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-27 22:55:45,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:45,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 22:55:45,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:55:45,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 22:55:45,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113027823] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 22:55:45,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 22:55:45,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-01-27 22:55:45,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214071545] [2023-01-27 22:55:45,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 22:55:45,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-01-27 22:55:45,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:45,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-01-27 22:55:45,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-01-27 22:55:45,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 584 [2023-01-27 22:55:45,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 51 transitions, 250 flow. Second operand has 12 states, 12 states have (on average 208.0) internal successors, (2496), 12 states have internal predecessors, (2496), 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) [2023-01-27 22:55:45,324 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:45,324 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 584 [2023-01-27 22:55:45,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:45,629 INFO L130 PetriNetUnfolder]: 1361/1892 cut-off events. [2023-01-27 22:55:45,629 INFO L131 PetriNetUnfolder]: For 315/337 co-relation queries the response was YES. [2023-01-27 22:55:45,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4626 conditions, 1892 events. 1361/1892 cut-off events. For 315/337 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 7843 event pairs, 473 based on Foata normal form. 22/1379 useless extension candidates. Maximal degree in co-relation 4091. Up to 1170 conditions per place. [2023-01-27 22:55:45,638 INFO L137 encePairwiseOnDemand]: 574/584 looper letters, 43 selfloop transitions, 10 changer transitions 34/89 dead transitions. [2023-01-27 22:55:45,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 89 transitions, 533 flow [2023-01-27 22:55:45,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 22:55:45,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 22:55:45,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1723 transitions. [2023-01-27 22:55:45,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3687928082191781 [2023-01-27 22:55:45,641 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1723 transitions. [2023-01-27 22:55:45,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1723 transitions. [2023-01-27 22:55:45,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:45,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1723 transitions. [2023-01-27 22:55:45,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 215.375) internal successors, (1723), 8 states have internal predecessors, (1723), 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) [2023-01-27 22:55:45,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 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) [2023-01-27 22:55:45,650 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 584.0) internal successors, (5256), 9 states have internal predecessors, (5256), 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) [2023-01-27 22:55:45,650 INFO L175 Difference]: Start difference. First operand has 48 places, 51 transitions, 250 flow. Second operand 8 states and 1723 transitions. [2023-01-27 22:55:45,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 89 transitions, 533 flow [2023-01-27 22:55:45,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 512 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-01-27 22:55:45,655 INFO L231 Difference]: Finished difference. Result has 56 places, 43 transitions, 202 flow [2023-01-27 22:55:45,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=202, PETRI_PLACES=56, PETRI_TRANSITIONS=43} [2023-01-27 22:55:45,657 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 20 predicate places. [2023-01-27 22:55:45,659 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 43 transitions, 202 flow [2023-01-27 22:55:45,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 208.0) internal successors, (2496), 12 states have internal predecessors, (2496), 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) [2023-01-27 22:55:45,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:45,660 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:45,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-01-27 22:55:45,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:45,865 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)] === [2023-01-27 22:55:45,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:45,866 INFO L85 PathProgramCache]: Analyzing trace with hash 552953634, now seen corresponding path program 2 times [2023-01-27 22:55:45,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:45,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853519279] [2023-01-27 22:55:45,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:45,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:46,045 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-27 22:55:46,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:46,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853519279] [2023-01-27 22:55:46,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853519279] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:46,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919625657] [2023-01-27 22:55:46,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 22:55:46,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:46,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:46,047 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) [2023-01-27 22:55:46,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-27 22:55:46,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 22:55:46,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 22:55:46,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-27 22:55:46,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:46,323 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-27 22:55:46,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:55:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-01-27 22:55:46,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919625657] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:46,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-27 22:55:46,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2023-01-27 22:55:46,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301374233] [2023-01-27 22:55:46,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:55:46,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 22:55:46,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:46,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 22:55:46,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-01-27 22:55:46,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 584 [2023-01-27 22:55:46,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 43 transitions, 202 flow. Second operand has 6 states, 6 states have (on average 213.33333333333334) internal successors, (1280), 6 states have internal predecessors, (1280), 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) [2023-01-27 22:55:46,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:46,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 584 [2023-01-27 22:55:46,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:46,565 INFO L130 PetriNetUnfolder]: 1547/2085 cut-off events. [2023-01-27 22:55:46,565 INFO L131 PetriNetUnfolder]: For 672/672 co-relation queries the response was YES. [2023-01-27 22:55:46,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5551 conditions, 2085 events. 1547/2085 cut-off events. For 672/672 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 8216 event pairs, 465 based on Foata normal form. 0/1677 useless extension candidates. Maximal degree in co-relation 5511. Up to 1568 conditions per place. [2023-01-27 22:55:46,574 INFO L137 encePairwiseOnDemand]: 579/584 looper letters, 55 selfloop transitions, 5 changer transitions 0/62 dead transitions. [2023-01-27 22:55:46,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 62 transitions, 385 flow [2023-01-27 22:55:46,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 22:55:46,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 22:55:46,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1305 transitions. [2023-01-27 22:55:46,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3724315068493151 [2023-01-27 22:55:46,577 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1305 transitions. [2023-01-27 22:55:46,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1305 transitions. [2023-01-27 22:55:46,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:46,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1305 transitions. [2023-01-27 22:55:46,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 217.5) internal successors, (1305), 6 states have internal predecessors, (1305), 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) [2023-01-27 22:55:46,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-01-27 22:55:46,583 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-01-27 22:55:46,583 INFO L175 Difference]: Start difference. First operand has 56 places, 43 transitions, 202 flow. Second operand 6 states and 1305 transitions. [2023-01-27 22:55:46,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 62 transitions, 385 flow [2023-01-27 22:55:46,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 62 transitions, 349 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-01-27 22:55:46,590 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 191 flow [2023-01-27 22:55:46,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=191, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2023-01-27 22:55:46,590 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places. [2023-01-27 22:55:46,590 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 191 flow [2023-01-27 22:55:46,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 213.33333333333334) internal successors, (1280), 6 states have internal predecessors, (1280), 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) [2023-01-27 22:55:46,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:46,591 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:46,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-27 22:55:46,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:46,797 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)] === [2023-01-27 22:55:46,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:46,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1297932992, now seen corresponding path program 1 times [2023-01-27 22:55:46,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:46,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226230394] [2023-01-27 22:55:46,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:46,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-27 22:55:46,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:46,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226230394] [2023-01-27 22:55:46,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226230394] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:46,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691736358] [2023-01-27 22:55:46,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:46,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:46,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:46,913 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) [2023-01-27 22:55:46,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-27 22:55:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:47,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-27 22:55:47,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:47,086 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-27 22:55:47,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:55:47,129 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-01-27 22:55:47,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691736358] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:47,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-27 22:55:47,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2023-01-27 22:55:47,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734183302] [2023-01-27 22:55:47,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:55:47,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 22:55:47,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:47,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 22:55:47,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-01-27 22:55:47,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 584 [2023-01-27 22:55:47,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 209.5) internal successors, (1257), 6 states have internal predecessors, (1257), 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) [2023-01-27 22:55:47,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:47,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 584 [2023-01-27 22:55:47,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:47,321 INFO L130 PetriNetUnfolder]: 1146/1548 cut-off events. [2023-01-27 22:55:47,322 INFO L131 PetriNetUnfolder]: For 488/601 co-relation queries the response was YES. [2023-01-27 22:55:47,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4033 conditions, 1548 events. 1146/1548 cut-off events. For 488/601 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 5768 event pairs, 281 based on Foata normal form. 163/1370 useless extension candidates. Maximal degree in co-relation 3997. Up to 1015 conditions per place. [2023-01-27 22:55:47,328 INFO L137 encePairwiseOnDemand]: 578/584 looper letters, 49 selfloop transitions, 7 changer transitions 0/58 dead transitions. [2023-01-27 22:55:47,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 58 transitions, 346 flow [2023-01-27 22:55:47,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 22:55:47,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 22:55:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1277 transitions. [2023-01-27 22:55:47,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3644406392694064 [2023-01-27 22:55:47,331 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1277 transitions. [2023-01-27 22:55:47,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1277 transitions. [2023-01-27 22:55:47,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:47,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1277 transitions. [2023-01-27 22:55:47,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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) [2023-01-27 22:55:47,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-01-27 22:55:47,337 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-01-27 22:55:47,337 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 191 flow. Second operand 6 states and 1277 transitions. [2023-01-27 22:55:47,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 58 transitions, 346 flow [2023-01-27 22:55:47,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 58 transitions, 331 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-01-27 22:55:47,341 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 208 flow [2023-01-27 22:55:47,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=179, 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=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=208, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2023-01-27 22:55:47,341 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 17 predicate places. [2023-01-27 22:55:47,342 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 208 flow [2023-01-27 22:55:47,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 209.5) internal successors, (1257), 6 states have internal predecessors, (1257), 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) [2023-01-27 22:55:47,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:47,342 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:47,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-01-27 22:55:47,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:47,548 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)] === [2023-01-27 22:55:47,548 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:47,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2052497291, now seen corresponding path program 1 times [2023-01-27 22:55:47,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:47,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317197836] [2023-01-27 22:55:47,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:47,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:47,686 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-27 22:55:47,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:47,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317197836] [2023-01-27 22:55:47,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317197836] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:47,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163176102] [2023-01-27 22:55:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:47,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:47,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:47,690 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) [2023-01-27 22:55:47,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-27 22:55:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:47,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-27 22:55:47,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:47,845 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-27 22:55:47,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:55:47,891 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-01-27 22:55:47,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163176102] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:47,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-27 22:55:47,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2023-01-27 22:55:47,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589286286] [2023-01-27 22:55:47,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 22:55:47,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 22:55:47,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 22:55:47,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 22:55:47,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-01-27 22:55:47,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 584 [2023-01-27 22:55:47,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 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) [2023-01-27 22:55:47,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 22:55:47,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 584 [2023-01-27 22:55:47,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 22:55:48,033 INFO L130 PetriNetUnfolder]: 991/1364 cut-off events. [2023-01-27 22:55:48,033 INFO L131 PetriNetUnfolder]: For 764/968 co-relation queries the response was YES. [2023-01-27 22:55:48,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3603 conditions, 1364 events. 991/1364 cut-off events. For 764/968 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4732 event pairs, 318 based on Foata normal form. 272/1348 useless extension candidates. Maximal degree in co-relation 3565. Up to 721 conditions per place. [2023-01-27 22:55:48,039 INFO L137 encePairwiseOnDemand]: 577/584 looper letters, 54 selfloop transitions, 8 changer transitions 0/64 dead transitions. [2023-01-27 22:55:48,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 64 transitions, 402 flow [2023-01-27 22:55:48,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 22:55:48,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 22:55:48,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1298 transitions. [2023-01-27 22:55:48,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3704337899543379 [2023-01-27 22:55:48,042 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1298 transitions. [2023-01-27 22:55:48,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1298 transitions. [2023-01-27 22:55:48,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 22:55:48,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1298 transitions. [2023-01-27 22:55:48,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 216.33333333333334) internal successors, (1298), 6 states have internal predecessors, (1298), 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) [2023-01-27 22:55:48,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-01-27 22:55:48,048 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 584.0) internal successors, (4088), 7 states have internal predecessors, (4088), 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) [2023-01-27 22:55:48,048 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 208 flow. Second operand 6 states and 1298 transitions. [2023-01-27 22:55:48,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 64 transitions, 402 flow [2023-01-27 22:55:48,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 64 transitions, 390 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-27 22:55:48,051 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 236 flow [2023-01-27 22:55:48,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=584, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=236, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2023-01-27 22:55:48,052 INFO L281 CegarLoopForPetriNet]: 36 programPoint places, 20 predicate places. [2023-01-27 22:55:48,052 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 236 flow [2023-01-27 22:55:48,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 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) [2023-01-27 22:55:48,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 22:55:48,052 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 22:55:48,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-27 22:55:48,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:48,258 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)] === [2023-01-27 22:55:48,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 22:55:48,258 INFO L85 PathProgramCache]: Analyzing trace with hash 995945267, now seen corresponding path program 1 times [2023-01-27 22:55:48,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 22:55:48,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203821902] [2023-01-27 22:55:48,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:48,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 22:55:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:50,467 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 22:55:50,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 22:55:50,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203821902] [2023-01-27 22:55:50,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203821902] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 22:55:50,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257851527] [2023-01-27 22:55:50,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 22:55:50,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 22:55:50,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 22:55:50,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 22:55:50,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-27 22:55:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 22:55:50,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 74 conjunts are in the unsatisfiable core [2023-01-27 22:55:50,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 22:55:50,647 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 [2023-01-27 22:55:50,728 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-01-27 22:55:50,729 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 [2023-01-27 22:55:50,826 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:55:50,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2023-01-27 22:55:51,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 22:55:51,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-01-27 22:55:51,328 INFO L321 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2023-01-27 22:55:51,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 40 [2023-01-27 22:55:51,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 22:55:51,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-01-27 22:55:51,564 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2023-01-27 22:55:51,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 98 treesize of output 113 [2023-01-27 22:55:53,240 INFO L321 Elim1Store]: treesize reduction 96, result has 75.6 percent of original size [2023-01-27 22:55:53,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 262 treesize of output 442 [2023-01-27 22:55:59,099 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-01-27 22:55:59,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 22:55:59,393 WARN L839 $PredicateComparison]: unable to prove that (or (<= c_~maxa~0 |c_thread1Thread1of1ForFork0_#t~mem2|) (let ((.cse0 (+ c_~maxa~0 c_~maxb~0)) (.cse3 (+ c_~C~0.offset 4)) (.cse1 (+ (* c_thread1Thread1of1ForFork0_~i~0 4) c_~B~0.offset))) (and (or (<= c_~maxc~0 .cse0) (forall ((v_ArrVal_505 (Array Int Int))) (<= c_~maxb~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse1)))) (forall ((v_ArrVal_505 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (or (<= (select (select .cse2 c_~C~0.base) .cse3) .cse0) (<= c_~maxb~0 (select (select .cse2 c_~B~0.base) .cse1))))) (forall ((v_ArrVal_505 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (let ((.cse5 (select (select .cse4 c_~B~0.base) .cse1))) (or (<= (select (select .cse4 c_~C~0.base) .cse3) (+ .cse5 c_~maxa~0)) (< .cse5 c_~maxb~0))))) (forall ((v_ArrVal_505 (Array Int Int))) (let ((.cse6 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse1))) (or (<= c_~maxc~0 (+ .cse6 c_~maxa~0)) (< .cse6 c_~maxb~0))))))) is different from false [2023-01-27 22:55:59,744 WARN L839 $PredicateComparison]: unable to prove that (or (let ((.cse2 (+ c_~maxa~0 c_~maxb~0)) (.cse5 (+ (select (select |c_#memory_int| c_~A~0.base) (+ c_~A~0.offset 4)) (select (select |c_#memory_int| c_~B~0.base) (+ 4 c_~B~0.offset)))) (.cse4 (select |c_#memory_int| c_~C~0.base)) (.cse3 (+ (* c_thread1Thread1of1ForFork0_~i~0 4) c_~B~0.offset))) (and (forall ((v_ArrVal_503 Int)) (or (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse1 (+ ~C~0.offset 4))) (let ((.cse0 (store (store |c_#memory_int| c_~C~0.base (store .cse4 .cse1 v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (or (<= (select (select .cse0 c_~C~0.base) .cse1) .cse2) (<= c_~maxb~0 (select (select .cse0 c_~B~0.base) .cse3)))))) (< .cse5 v_ArrVal_503))) (or (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int)) (v_ArrVal_503 Int)) (or (< .cse5 v_ArrVal_503) (<= c_~maxb~0 (select (select (store (store |c_#memory_int| c_~C~0.base (store .cse4 (+ ~C~0.offset 4) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3)))) (<= c_~maxc~0 .cse2)) (forall ((v_ArrVal_503 Int)) (or (< .cse5 v_ArrVal_503) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse7 (+ ~C~0.offset 4))) (let ((.cse6 (store (store |c_#memory_int| c_~C~0.base (store .cse4 .cse7 v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (let ((.cse8 (select (select .cse6 c_~B~0.base) .cse3))) (or (<= (select (select .cse6 c_~C~0.base) .cse7) (+ .cse8 c_~maxa~0)) (< .cse8 c_~maxb~0)))))))) (forall ((v_ArrVal_503 Int)) (or (< .cse5 v_ArrVal_503) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse9 (select (select (store (store |c_#memory_int| c_~C~0.base (store .cse4 (+ ~C~0.offset 4) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3))) (or (< .cse9 c_~maxb~0) (<= c_~maxc~0 (+ .cse9 c_~maxa~0))))))))) (<= c_~maxa~0 |c_thread1Thread1of1ForFork0_#t~mem2|)) is different from false [2023-01-27 22:55:59,854 WARN L839 $PredicateComparison]: unable to prove that (or (let ((.cse2 (+ c_~maxa~0 c_~maxb~0)) (.cse5 (+ 4 c_~B~0.offset)) (.cse6 (+ c_~A~0.offset 4)) (.cse3 (+ (* c_thread1Thread1of1ForFork0_~i~0 4) c_~B~0.offset))) (and (forall ((v_ArrVal_502 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse1 (+ ~C~0.offset 4))) (let ((.cse0 (store (store .cse4 c_~C~0.base (store (select .cse4 c_~C~0.base) .cse1 v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (or (<= (select (select .cse0 c_~C~0.base) .cse1) .cse2) (<= c_~maxb~0 (select (select .cse0 c_~B~0.base) .cse3)))))) (< (+ (select (select .cse4 c_~B~0.base) .cse5) (select (select .cse4 c_~A~0.base) .cse6)) v_ArrVal_503)))) (or (<= c_~maxc~0 .cse2) (forall ((v_ArrVal_502 (Array Int Int)) (~C~0.offset Int) (v_ArrVal_505 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (< (+ (select (select .cse7 c_~B~0.base) .cse5) (select (select .cse7 c_~A~0.base) .cse6)) v_ArrVal_503) (<= c_~maxb~0 (select (select (store (store .cse7 c_~C~0.base (store (select .cse7 c_~C~0.base) (+ ~C~0.offset 4) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3)))))) (forall ((v_ArrVal_502 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (< (+ (select (select .cse8 c_~B~0.base) .cse5) (select (select .cse8 c_~A~0.base) .cse6)) v_ArrVal_503) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse11 (+ ~C~0.offset 4))) (let ((.cse10 (store (store .cse8 c_~C~0.base (store (select .cse8 c_~C~0.base) .cse11 v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505))) (let ((.cse9 (select (select .cse10 c_~B~0.base) .cse3))) (or (< .cse9 c_~maxb~0) (<= (select (select .cse10 c_~C~0.base) .cse11) (+ .cse9 c_~maxa~0)))))))))) (forall ((v_ArrVal_502 (Array Int Int)) (v_ArrVal_503 Int)) (let ((.cse12 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_502))) (or (< (+ (select (select .cse12 c_~B~0.base) .cse5) (select (select .cse12 c_~A~0.base) .cse6)) v_ArrVal_503) (forall ((~C~0.offset Int) (v_ArrVal_505 (Array Int Int))) (let ((.cse13 (select (select (store (store .cse12 c_~C~0.base (store (select .cse12 c_~C~0.base) (+ ~C~0.offset 4) v_ArrVal_503)) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_505) c_~B~0.base) .cse3))) (or (< .cse13 c_~maxb~0) (<= c_~maxc~0 (+ .cse13 c_~maxa~0)))))))))) (<= c_~maxa~0 |c_thread1Thread1of1ForFork0_#t~mem2|)) is different from false [2023-01-27 22:55:59,932 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:55:59,933 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 6159 treesize of output 6027 [2023-01-27 22:56:00,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2753 treesize of output 2657 [2023-01-27 22:56:00,202 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:56:00,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2741 treesize of output 2708 [2023-01-27 22:56:00,275 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:56:00,276 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 2677 treesize of output 2484 [2023-01-27 22:56:00,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2469 treesize of output 2421 [2023-01-27 22:56:00,424 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:56:00,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2545 treesize of output 2488 [2023-01-27 22:56:00,500 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:56:00,500 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 2457 treesize of output 2416 [2023-01-27 22:56:00,577 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:56:00,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2441 treesize of output 2432 [2023-01-27 22:56:00,660 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-01-27 22:56:00,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2441 treesize of output 2432 Received shutdown request... [2023-01-27 23:09:40,927 WARN L238 SmtUtils]: Removed 2 from assertion stack [2023-01-27 23:09:40,929 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-27 23:09:40,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-01-27 23:09:40,948 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 23:09:40,948 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 [2023-01-27 23:09:41,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 23:09:41,133 WARN L619 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 35 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 3ms.. [2023-01-27 23:09:41,148 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-27 23:09:41,148 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-27 23:09:41,149 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-27 23:09:41,149 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 23:09:41,151 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 23:09:41,151 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 23:09:41,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:09:41 BasicIcfg [2023-01-27 23:09:41,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 23:09:41,153 INFO L158 Benchmark]: Toolchain (without parser) took 846476.24ms. Allocated memory was 580.9MB in the beginning and 1.9GB in the end (delta: 1.3GB). Free memory was 532.7MB in the beginning and 1.7GB in the end (delta: -1.2GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2023-01-27 23:09:41,153 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 367.0MB. Free memory is still 316.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 23:09:41,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 167.54ms. Allocated memory is still 580.9MB. Free memory was 532.3MB in the beginning and 520.1MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-27 23:09:41,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.67ms. Allocated memory is still 580.9MB. Free memory was 520.1MB in the beginning and 517.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-27 23:09:41,154 INFO L158 Benchmark]: Boogie Preprocessor took 23.34ms. Allocated memory is still 580.9MB. Free memory was 517.6MB in the beginning and 515.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 23:09:41,154 INFO L158 Benchmark]: RCFGBuilder took 624.72ms. Allocated memory is still 580.9MB. Free memory was 515.5MB in the beginning and 483.7MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. [2023-01-27 23:09:41,154 INFO L158 Benchmark]: TraceAbstraction took 845619.03ms. Allocated memory was 580.9MB in the beginning and 1.9GB in the end (delta: 1.3GB). Free memory was 483.0MB in the beginning and 1.7GB in the end (delta: -1.2GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. [2023-01-27 23:09:41,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 367.0MB. Free memory is still 316.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 167.54ms. Allocated memory is still 580.9MB. Free memory was 532.3MB in the beginning and 520.1MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 34.67ms. Allocated memory is still 580.9MB. Free memory was 520.1MB in the beginning and 517.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.34ms. Allocated memory is still 580.9MB. Free memory was 517.6MB in the beginning and 515.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 624.72ms. Allocated memory is still 580.9MB. Free memory was 515.5MB in the beginning and 483.7MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.0GB. * TraceAbstraction took 845619.03ms. Allocated memory was 580.9MB in the beginning and 1.9GB in the end (delta: 1.3GB). Free memory was 483.0MB in the beginning and 1.7GB in the end (delta: -1.2GB). Peak memory consumption was 1.1GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7s, 254 PlacesBefore, 36 PlacesAfterwards, 271 TransitionsBefore, 34 TransitionsAfterwards, 2634 CoEnabledTransitionPairs, 7 FixpointIterations, 182 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 51 TrivialYvCompositions, 10 ConcurrentYvCompositions, 19 ChoiceCompositions, 300 TotalNumberOfCompositions, 3780 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2690, independent: 2592, independent conditional: 0, independent unconditional: 2592, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1436, independent: 1408, independent conditional: 0, independent unconditional: 1408, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2690, independent: 1184, independent conditional: 0, independent unconditional: 1184, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 1436, unknown conditional: 0, unknown unconditional: 1436] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 96, Positive conditional cache size: 0, Positive unconditional cache size: 96, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 35 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 3ms.. - TimeoutResultAtElement [Line: 108]: 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 35 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 3ms.. - TimeoutResultAtElement [Line: 106]: 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 35 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 3ms.. - TimeoutResultAtElement [Line: 107]: 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 35 with TraceHistMax 2,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 3ms.. - 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: 845.5s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 388 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 388 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 964 IncrementalHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 5 mSDtfsCounter, 964 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 332 GetRequests, 261 SyntacticMatches, 5 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=4, InterpolantAutomatonStates: 44, 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, 0.5s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 366 NumberOfCodeBlocks, 366 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 496 ConstructedInterpolants, 0 QuantifiedInterpolants, 1222 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1801 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 103/124 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