/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/test-easy1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 05:37:05,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 05:37:05,446 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 05:37:05,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 05:37:05,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 05:37:05,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 05:37:05,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 05:37:05,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 05:37:05,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 05:37:05,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 05:37:05,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 05:37:05,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 05:37:05,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 05:37:05,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 05:37:05,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 05:37:05,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 05:37:05,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 05:37:05,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 05:37:05,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 05:37:05,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 05:37:05,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 05:37:05,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 05:37:05,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 05:37:05,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 05:37:05,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 05:37:05,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 05:37:05,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 05:37:05,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 05:37:05,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 05:37:05,497 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 05:37:05,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 05:37:05,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 05:37:05,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 05:37:05,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 05:37:05,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 05:37:05,499 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 05:37:05,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 05:37:05,499 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 05:37:05,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 05:37:05,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 05:37:05,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 05:37:05,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 05:37:05,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 05:37:05,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 05:37:05,500 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 05:37:05,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 05:37:05,500 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 05:37:05,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 05:37:05,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 05:37:05,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 05:37:05,500 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 05:37:05,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 05:37:05,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 05:37:05,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 05:37:05,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 05:37:05,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 05:37:05,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 05:37:05,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 05:37:05,501 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 05:37:05,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 05:37:05,501 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 05:37:05,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 05:37:05,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 05:37:05,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 05:37:05,704 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 05:37:05,705 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 05:37:05,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy1.wvr.c [2023-01-28 05:37:06,610 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 05:37:06,737 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 05:37:06,737 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy1.wvr.c [2023-01-28 05:37:06,742 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9589b139d/d3f01dc6efa5407dbb02f443ebc61e01/FLAG99bda9058 [2023-01-28 05:37:06,753 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9589b139d/d3f01dc6efa5407dbb02f443ebc61e01 [2023-01-28 05:37:06,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 05:37:06,756 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 05:37:06,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 05:37:06,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 05:37:06,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 05:37:06,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f2e5c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06, skipping insertion in model container [2023-01-28 05:37:06,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 05:37:06,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 05:37:06,895 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/test-easy1.wvr.c[1876,1889] [2023-01-28 05:37:06,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 05:37:06,907 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 05:37:06,917 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/test-easy1.wvr.c[1876,1889] [2023-01-28 05:37:06,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 05:37:06,926 INFO L208 MainTranslator]: Completed translation [2023-01-28 05:37:06,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06 WrapperNode [2023-01-28 05:37:06,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 05:37:06,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 05:37:06,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 05:37:06,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 05:37:06,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,947 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-01-28 05:37:06,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 05:37:06,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 05:37:06,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 05:37:06,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 05:37:06,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 05:37:06,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 05:37:06,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 05:37:06,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 05:37:06,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (1/1) ... [2023-01-28 05:37:06,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 05:37:06,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:37:06,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 05:37:06,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 05:37:07,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 05:37:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-28 05:37:07,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-28 05:37:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-28 05:37:07,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-28 05:37:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 05:37:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 05:37:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 05:37:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 05:37:07,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 05:37:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 05:37:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 05:37:07,014 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 05:37:07,078 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 05:37:07,079 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 05:37:07,221 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 05:37:07,226 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 05:37:07,226 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-28 05:37:07,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 05:37:07 BoogieIcfgContainer [2023-01-28 05:37:07,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 05:37:07,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 05:37:07,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 05:37:07,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 05:37:07,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 05:37:06" (1/3) ... [2023-01-28 05:37:07,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e1db85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 05:37:07, skipping insertion in model container [2023-01-28 05:37:07,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 05:37:06" (2/3) ... [2023-01-28 05:37:07,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34e1db85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 05:37:07, skipping insertion in model container [2023-01-28 05:37:07,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 05:37:07" (3/3) ... [2023-01-28 05:37:07,248 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy1.wvr.c [2023-01-28 05:37:07,262 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 05:37:07,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 05:37:07,262 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 05:37:07,340 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 05:37:07,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 79 transitions, 174 flow [2023-01-28 05:37:07,419 INFO L130 PetriNetUnfolder]: 6/77 cut-off events. [2023-01-28 05:37:07,420 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 05:37:07,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 77 events. 6/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2023-01-28 05:37:07,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 79 transitions, 174 flow [2023-01-28 05:37:07,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 69 transitions, 150 flow [2023-01-28 05:37:07,438 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 05:37:07,445 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 69 transitions, 150 flow [2023-01-28 05:37:07,447 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 69 transitions, 150 flow [2023-01-28 05:37:07,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 70 places, 69 transitions, 150 flow [2023-01-28 05:37:07,482 INFO L130 PetriNetUnfolder]: 6/69 cut-off events. [2023-01-28 05:37:07,482 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 05:37:07,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 69 events. 6/69 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2023-01-28 05:37:07,484 INFO L119 LiptonReduction]: Number of co-enabled transitions 368 [2023-01-28 05:37:08,936 INFO L134 LiptonReduction]: Checked pairs total: 388 [2023-01-28 05:37:08,936 INFO L136 LiptonReduction]: Total number of compositions: 67 [2023-01-28 05:37:08,953 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 05:37:08,957 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;@37d06251, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 05:37:08,957 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 05:37:08,960 INFO L130 PetriNetUnfolder]: 2/12 cut-off events. [2023-01-28 05:37:08,960 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 05:37:08,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:37:08,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:37:08,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 05:37:08,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:37:08,987 INFO L85 PathProgramCache]: Analyzing trace with hash 626447548, now seen corresponding path program 1 times [2023-01-28 05:37:08,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:37:08,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970291552] [2023-01-28 05:37:08,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:08,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:37:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:09,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:37:09,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970291552] [2023-01-28 05:37:09,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970291552] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 05:37:09,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 05:37:09,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 05:37:09,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486512467] [2023-01-28 05:37:09,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:37:09,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 05:37:09,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:37:09,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 05:37:09,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 05:37:09,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 146 [2023-01-28 05:37:09,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 13 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:37:09,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 146 [2023-01-28 05:37:09,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:37:09,425 INFO L130 PetriNetUnfolder]: 41/77 cut-off events. [2023-01-28 05:37:09,426 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-01-28 05:37:09,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 77 events. 41/77 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 165 event pairs, 9 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 120. Up to 51 conditions per place. [2023-01-28 05:37:09,429 INFO L137 encePairwiseOnDemand]: 142/146 looper letters, 19 selfloop transitions, 3 changer transitions 1/23 dead transitions. [2023-01-28 05:37:09,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 23 transitions, 113 flow [2023-01-28 05:37:09,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 05:37:09,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 05:37:09,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2023-01-28 05:37:09,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4383561643835616 [2023-01-28 05:37:09,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 192 transitions. [2023-01-28 05:37:09,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 192 transitions. [2023-01-28 05:37:09,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:37:09,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 192 transitions. [2023-01-28 05:37:09,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,448 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,449 INFO L175 Difference]: Start difference. First operand has 18 places, 13 transitions, 38 flow. Second operand 3 states and 192 transitions. [2023-01-28 05:37:09,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 23 transitions, 113 flow [2023-01-28 05:37:09,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 23 transitions, 99 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 05:37:09,451 INFO L231 Difference]: Finished difference. Result has 17 places, 15 transitions, 49 flow [2023-01-28 05:37:09,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=17, PETRI_TRANSITIONS=15} [2023-01-28 05:37:09,455 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, -1 predicate places. [2023-01-28 05:37:09,455 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 15 transitions, 49 flow [2023-01-28 05:37:09,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:37:09,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:37:09,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 05:37:09,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 05:37:09,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:37:09,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2054649994, now seen corresponding path program 1 times [2023-01-28 05:37:09,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:37:09,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760048458] [2023-01-28 05:37:09,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:09,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:37:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:09,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:09,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:37:09,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760048458] [2023-01-28 05:37:09,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760048458] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 05:37:09,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 05:37:09,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 05:37:09,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688324771] [2023-01-28 05:37:09,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:37:09,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 05:37:09,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:37:09,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 05:37:09,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 05:37:09,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 146 [2023-01-28 05:37:09,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 15 transitions, 49 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:37:09,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 146 [2023-01-28 05:37:09,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:37:09,581 INFO L130 PetriNetUnfolder]: 35/71 cut-off events. [2023-01-28 05:37:09,582 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-01-28 05:37:09,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 71 events. 35/71 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 158 event pairs, 6 based on Foata normal form. 6/77 useless extension candidates. Maximal degree in co-relation 55. Up to 45 conditions per place. [2023-01-28 05:37:09,583 INFO L137 encePairwiseOnDemand]: 141/146 looper letters, 15 selfloop transitions, 3 changer transitions 10/28 dead transitions. [2023-01-28 05:37:09,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 28 transitions, 135 flow [2023-01-28 05:37:09,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 05:37:09,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 05:37:09,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 254 transitions. [2023-01-28 05:37:09,588 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4349315068493151 [2023-01-28 05:37:09,589 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 254 transitions. [2023-01-28 05:37:09,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 254 transitions. [2023-01-28 05:37:09,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:37:09,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 254 transitions. [2023-01-28 05:37:09,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,592 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,592 INFO L175 Difference]: Start difference. First operand has 17 places, 15 transitions, 49 flow. Second operand 4 states and 254 transitions. [2023-01-28 05:37:09,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 28 transitions, 135 flow [2023-01-28 05:37:09,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 28 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 05:37:09,593 INFO L231 Difference]: Finished difference. Result has 20 places, 15 transitions, 59 flow [2023-01-28 05:37:09,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=59, PETRI_PLACES=20, PETRI_TRANSITIONS=15} [2023-01-28 05:37:09,593 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 2 predicate places. [2023-01-28 05:37:09,594 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 15 transitions, 59 flow [2023-01-28 05:37:09,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:37:09,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:37:09,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 05:37:09,595 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 05:37:09,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:37:09,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1524373393, now seen corresponding path program 1 times [2023-01-28 05:37:09,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:37:09,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098426234] [2023-01-28 05:37:09,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:09,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:37:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:09,700 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:09,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:37:09,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098426234] [2023-01-28 05:37:09,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098426234] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:37:09,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045946010] [2023-01-28 05:37:09,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:09,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:09,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:37:09,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:37:09,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-28 05:37:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:09,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2023-01-28 05:37:09,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:37:09,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:09,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:37:09,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:09,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045946010] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 05:37:09,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 05:37:09,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2023-01-28 05:37:09,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258107029] [2023-01-28 05:37:09,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:37:09,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 05:37:09,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:37:09,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 05:37:09,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-01-28 05:37:09,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 146 [2023-01-28 05:37:09,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 15 transitions, 59 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:37:09,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 146 [2023-01-28 05:37:09,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:37:09,988 INFO L130 PetriNetUnfolder]: 40/79 cut-off events. [2023-01-28 05:37:09,988 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 05:37:09,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 79 events. 40/79 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 168 event pairs, 2 based on Foata normal form. 6/85 useless extension candidates. Maximal degree in co-relation 53. Up to 39 conditions per place. [2023-01-28 05:37:09,989 INFO L137 encePairwiseOnDemand]: 141/146 looper letters, 24 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2023-01-28 05:37:09,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 30 transitions, 165 flow [2023-01-28 05:37:09,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 05:37:09,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 05:37:09,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 254 transitions. [2023-01-28 05:37:09,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4349315068493151 [2023-01-28 05:37:09,991 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 254 transitions. [2023-01-28 05:37:09,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 254 transitions. [2023-01-28 05:37:09,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:37:09,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 254 transitions. [2023-01-28 05:37:09,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 63.5) internal successors, (254), 4 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,994 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 146.0) internal successors, (730), 5 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:09,994 INFO L175 Difference]: Start difference. First operand has 20 places, 15 transitions, 59 flow. Second operand 4 states and 254 transitions. [2023-01-28 05:37:09,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 30 transitions, 165 flow [2023-01-28 05:37:09,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 30 transitions, 155 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-01-28 05:37:09,996 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 88 flow [2023-01-28 05:37:09,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-01-28 05:37:10,013 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2023-01-28 05:37:10,013 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 88 flow [2023-01-28 05:37:10,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:10,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:37:10,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:37:10,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-28 05:37:10,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:10,219 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 05:37:10,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:37:10,220 INFO L85 PathProgramCache]: Analyzing trace with hash 664575342, now seen corresponding path program 2 times [2023-01-28 05:37:10,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:37:10,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462146433] [2023-01-28 05:37:10,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:10,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:37:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:10,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:10,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:37:10,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462146433] [2023-01-28 05:37:10,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462146433] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:37:10,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704321100] [2023-01-28 05:37:10,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 05:37:10,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:10,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:37:10,290 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:37:10,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-28 05:37:10,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 05:37:10,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 05:37:10,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2023-01-28 05:37:10,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:37:10,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:10,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:37:10,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:10,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704321100] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-28 05:37:10,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-28 05:37:10,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 7 [2023-01-28 05:37:10,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140032812] [2023-01-28 05:37:10,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:37:10,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 05:37:10,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:37:10,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 05:37:10,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-01-28 05:37:10,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 146 [2023-01-28 05:37:10,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:10,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:37:10,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 146 [2023-01-28 05:37:10,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:37:10,575 INFO L130 PetriNetUnfolder]: 76/156 cut-off events. [2023-01-28 05:37:10,575 INFO L131 PetriNetUnfolder]: For 159/159 co-relation queries the response was YES. [2023-01-28 05:37:10,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 156 events. 76/156 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 490 event pairs, 4 based on Foata normal form. 1/157 useless extension candidates. Maximal degree in co-relation 132. Up to 64 conditions per place. [2023-01-28 05:37:10,578 INFO L137 encePairwiseOnDemand]: 140/146 looper letters, 35 selfloop transitions, 9 changer transitions 2/46 dead transitions. [2023-01-28 05:37:10,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 46 transitions, 285 flow [2023-01-28 05:37:10,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 05:37:10,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 05:37:10,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 322 transitions. [2023-01-28 05:37:10,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4410958904109589 [2023-01-28 05:37:10,579 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 322 transitions. [2023-01-28 05:37:10,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 322 transitions. [2023-01-28 05:37:10,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:37:10,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 322 transitions. [2023-01-28 05:37:10,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:10,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:10,583 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:10,583 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 88 flow. Second operand 5 states and 322 transitions. [2023-01-28 05:37:10,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 46 transitions, 285 flow [2023-01-28 05:37:10,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 46 transitions, 285 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 05:37:10,587 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 172 flow [2023-01-28 05:37:10,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=172, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2023-01-28 05:37:10,589 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 12 predicate places. [2023-01-28 05:37:10,589 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 172 flow [2023-01-28 05:37:10,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:10,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:37:10,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:37:10,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-01-28 05:37:10,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-01-28 05:37:10,794 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 05:37:10,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:37:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1369565425, now seen corresponding path program 1 times [2023-01-28 05:37:10,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:37:10,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366506492] [2023-01-28 05:37:10,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:10,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:37:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:10,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:10,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:37:10,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366506492] [2023-01-28 05:37:10,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366506492] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:37:10,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683478328] [2023-01-28 05:37:10,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:10,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:10,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:37:10,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:37:10,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-28 05:37:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:10,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2023-01-28 05:37:10,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:37:11,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:11,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:37:11,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:11,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683478328] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 05:37:11,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 05:37:11,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 2] total 9 [2023-01-28 05:37:11,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659817491] [2023-01-28 05:37:11,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 05:37:11,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-28 05:37:11,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:37:11,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-28 05:37:11,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-01-28 05:37:11,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 146 [2023-01-28 05:37:11,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 172 flow. Second operand has 10 states, 10 states have (on average 59.7) internal successors, (597), 10 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:11,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:37:11,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 146 [2023-01-28 05:37:11,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:37:11,224 INFO L130 PetriNetUnfolder]: 124/248 cut-off events. [2023-01-28 05:37:11,224 INFO L131 PetriNetUnfolder]: For 724/724 co-relation queries the response was YES. [2023-01-28 05:37:11,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 248 events. 124/248 cut-off events. For 724/724 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 947 event pairs, 2 based on Foata normal form. 29/277 useless extension candidates. Maximal degree in co-relation 298. Up to 83 conditions per place. [2023-01-28 05:37:11,226 INFO L137 encePairwiseOnDemand]: 140/146 looper letters, 25 selfloop transitions, 13 changer transitions 38/76 dead transitions. [2023-01-28 05:37:11,226 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 76 transitions, 622 flow [2023-01-28 05:37:11,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-01-28 05:37:11,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-01-28 05:37:11,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 677 transitions. [2023-01-28 05:37:11,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4215442092154421 [2023-01-28 05:37:11,228 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 677 transitions. [2023-01-28 05:37:11,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 677 transitions. [2023-01-28 05:37:11,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:37:11,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 677 transitions. [2023-01-28 05:37:11,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:11,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 146.0) internal successors, (1752), 12 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:11,232 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 146.0) internal successors, (1752), 12 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:11,232 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 172 flow. Second operand 11 states and 677 transitions. [2023-01-28 05:37:11,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 76 transitions, 622 flow [2023-01-28 05:37:11,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 76 transitions, 614 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-01-28 05:37:11,237 INFO L231 Difference]: Finished difference. Result has 46 places, 27 transitions, 247 flow [2023-01-28 05:37:11,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=247, PETRI_PLACES=46, PETRI_TRANSITIONS=27} [2023-01-28 05:37:11,238 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 28 predicate places. [2023-01-28 05:37:11,238 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 27 transitions, 247 flow [2023-01-28 05:37:11,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 59.7) internal successors, (597), 10 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:11,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:37:11,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:37:11,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-28 05:37:11,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:11,444 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 05:37:11,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:37:11,445 INFO L85 PathProgramCache]: Analyzing trace with hash -514417009, now seen corresponding path program 2 times [2023-01-28 05:37:11,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:37:11,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557301220] [2023-01-28 05:37:11,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:11,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:37:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:11,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:11,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:37:11,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557301220] [2023-01-28 05:37:11,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557301220] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:37:11,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242271361] [2023-01-28 05:37:11,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-28 05:37:11,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:11,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:37:11,545 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:37:11,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-28 05:37:11,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 05:37:11,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 05:37:11,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2023-01-28 05:37:11,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:37:11,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:11,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 05:37:11,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242271361] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 05:37:11,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 05:37:11,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-01-28 05:37:11,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113101531] [2023-01-28 05:37:11,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:37:11,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 05:37:11,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:37:11,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 05:37:11,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-01-28 05:37:11,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 146 [2023-01-28 05:37:11,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 27 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 58.166666666666664) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:11,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:37:11,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 146 [2023-01-28 05:37:11,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:37:11,669 INFO L130 PetriNetUnfolder]: 48/94 cut-off events. [2023-01-28 05:37:11,669 INFO L131 PetriNetUnfolder]: For 534/534 co-relation queries the response was YES. [2023-01-28 05:37:11,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 94 events. 48/94 cut-off events. For 534/534 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 208 event pairs, 6 based on Foata normal form. 1/95 useless extension candidates. Maximal degree in co-relation 402. Up to 41 conditions per place. [2023-01-28 05:37:11,670 INFO L137 encePairwiseOnDemand]: 141/146 looper letters, 27 selfloop transitions, 4 changer transitions 10/41 dead transitions. [2023-01-28 05:37:11,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 41 transitions, 404 flow [2023-01-28 05:37:11,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 05:37:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 05:37:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 365 transitions. [2023-01-28 05:37:11,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2023-01-28 05:37:11,671 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 365 transitions. [2023-01-28 05:37:11,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 365 transitions. [2023-01-28 05:37:11,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:37:11,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 365 transitions. [2023-01-28 05:37:11,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:11,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:11,674 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:11,674 INFO L175 Difference]: Start difference. First operand has 46 places, 27 transitions, 247 flow. Second operand 6 states and 365 transitions. [2023-01-28 05:37:11,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 41 transitions, 404 flow [2023-01-28 05:37:11,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 41 transitions, 335 flow, removed 23 selfloop flow, removed 9 redundant places. [2023-01-28 05:37:11,676 INFO L231 Difference]: Finished difference. Result has 42 places, 25 transitions, 183 flow [2023-01-28 05:37:11,676 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=183, PETRI_PLACES=42, PETRI_TRANSITIONS=25} [2023-01-28 05:37:11,676 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 24 predicate places. [2023-01-28 05:37:11,677 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 25 transitions, 183 flow [2023-01-28 05:37:11,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.166666666666664) internal successors, (349), 6 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:11,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:37:11,677 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:37:11,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-28 05:37:11,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:11,882 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 05:37:11,882 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:37:11,882 INFO L85 PathProgramCache]: Analyzing trace with hash -587854281, now seen corresponding path program 3 times [2023-01-28 05:37:11,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:37:11,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117235445] [2023-01-28 05:37:11,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:11,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:37:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:11,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:11,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:37:11,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117235445] [2023-01-28 05:37:11,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117235445] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:37:11,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671716059] [2023-01-28 05:37:11,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-28 05:37:11,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:11,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:37:11,963 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:37:11,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-28 05:37:12,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-01-28 05:37:12,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 05:37:12,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2023-01-28 05:37:12,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:37:12,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:12,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:37:12,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 05:37:12,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671716059] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 05:37:12,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 05:37:12,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 2] total 9 [2023-01-28 05:37:12,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333741888] [2023-01-28 05:37:12,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 05:37:12,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-28 05:37:12,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:37:12,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-28 05:37:12,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-01-28 05:37:12,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 146 [2023-01-28 05:37:12,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 25 transitions, 183 flow. Second operand has 10 states, 10 states have (on average 59.7) internal successors, (597), 10 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:12,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:37:12,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 146 [2023-01-28 05:37:12,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:37:12,193 INFO L130 PetriNetUnfolder]: 65/123 cut-off events. [2023-01-28 05:37:12,193 INFO L131 PetriNetUnfolder]: For 790/790 co-relation queries the response was YES. [2023-01-28 05:37:12,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 123 events. 65/123 cut-off events. For 790/790 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 317 event pairs, 4 based on Foata normal form. 5/128 useless extension candidates. Maximal degree in co-relation 616. Up to 43 conditions per place. [2023-01-28 05:37:12,194 INFO L137 encePairwiseOnDemand]: 140/146 looper letters, 26 selfloop transitions, 12 changer transitions 8/46 dead transitions. [2023-01-28 05:37:12,194 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 46 transitions, 433 flow [2023-01-28 05:37:12,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 05:37:12,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 05:37:12,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 429 transitions. [2023-01-28 05:37:12,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4197651663405088 [2023-01-28 05:37:12,195 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 429 transitions. [2023-01-28 05:37:12,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 429 transitions. [2023-01-28 05:37:12,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:37:12,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 429 transitions. [2023-01-28 05:37:12,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 61.285714285714285) internal successors, (429), 7 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:12,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 146.0) internal successors, (1168), 8 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:12,198 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 146.0) internal successors, (1168), 8 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:12,198 INFO L175 Difference]: Start difference. First operand has 42 places, 25 transitions, 183 flow. Second operand 7 states and 429 transitions. [2023-01-28 05:37:12,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 46 transitions, 433 flow [2023-01-28 05:37:12,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 387 flow, removed 10 selfloop flow, removed 7 redundant places. [2023-01-28 05:37:12,201 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 255 flow [2023-01-28 05:37:12,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=255, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2023-01-28 05:37:12,201 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 24 predicate places. [2023-01-28 05:37:12,201 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 255 flow [2023-01-28 05:37:12,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 59.7) internal successors, (597), 10 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:12,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:37:12,202 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:37:12,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-28 05:37:12,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:12,425 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 05:37:12,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:37:12,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1141489714, now seen corresponding path program 4 times [2023-01-28 05:37:12,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:37:12,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087637847] [2023-01-28 05:37:12,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:12,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:37:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:12,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:12,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:37:12,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087637847] [2023-01-28 05:37:12,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087637847] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:37:12,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577076603] [2023-01-28 05:37:12,471 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-28 05:37:12,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:12,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:37:12,473 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) [2023-01-28 05:37:12,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-28 05:37:12,514 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-28 05:37:12,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 05:37:12,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-28 05:37:12,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:37:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:12,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:37:12,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:12,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577076603] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 05:37:12,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 05:37:12,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-01-28 05:37:12,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094296137] [2023-01-28 05:37:12,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 05:37:12,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-28 05:37:12,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:37:12,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-28 05:37:12,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-01-28 05:37:12,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 146 [2023-01-28 05:37:12,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 255 flow. Second operand has 10 states, 10 states have (on average 58.4) internal successors, (584), 10 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:12,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:37:12,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 146 [2023-01-28 05:37:12,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:37:12,700 INFO L130 PetriNetUnfolder]: 75/144 cut-off events. [2023-01-28 05:37:12,700 INFO L131 PetriNetUnfolder]: For 596/596 co-relation queries the response was YES. [2023-01-28 05:37:12,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 144 events. 75/144 cut-off events. For 596/596 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 407 event pairs, 0 based on Foata normal form. 8/152 useless extension candidates. Maximal degree in co-relation 394. Up to 67 conditions per place. [2023-01-28 05:37:12,701 INFO L137 encePairwiseOnDemand]: 141/146 looper letters, 39 selfloop transitions, 18 changer transitions 10/67 dead transitions. [2023-01-28 05:37:12,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 67 transitions, 607 flow [2023-01-28 05:37:12,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-28 05:37:12,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-01-28 05:37:12,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 786 transitions. [2023-01-28 05:37:12,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41412012644889357 [2023-01-28 05:37:12,703 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 786 transitions. [2023-01-28 05:37:12,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 786 transitions. [2023-01-28 05:37:12,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:37:12,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 786 transitions. [2023-01-28 05:37:12,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 60.46153846153846) internal successors, (786), 13 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:12,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 146.0) internal successors, (2044), 14 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:12,708 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 146.0) internal successors, (2044), 14 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:12,708 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 255 flow. Second operand 13 states and 786 transitions. [2023-01-28 05:37:12,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 67 transitions, 607 flow [2023-01-28 05:37:12,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 67 transitions, 583 flow, removed 10 selfloop flow, removed 2 redundant places. [2023-01-28 05:37:12,711 INFO L231 Difference]: Finished difference. Result has 58 places, 41 transitions, 395 flow [2023-01-28 05:37:12,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=395, PETRI_PLACES=58, PETRI_TRANSITIONS=41} [2023-01-28 05:37:12,712 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 40 predicate places. [2023-01-28 05:37:12,712 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 41 transitions, 395 flow [2023-01-28 05:37:12,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.4) internal successors, (584), 10 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:12,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:37:12,713 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:37:12,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-01-28 05:37:12,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:12,924 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 05:37:12,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:37:12,924 INFO L85 PathProgramCache]: Analyzing trace with hash -189341905, now seen corresponding path program 5 times [2023-01-28 05:37:12,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:37:12,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082912223] [2023-01-28 05:37:12,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:12,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:37:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:12,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:37:12,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082912223] [2023-01-28 05:37:12,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082912223] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:37:12,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022513750] [2023-01-28 05:37:12,999 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-28 05:37:12,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:12,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:37:13,000 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:37:13,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-01-28 05:37:13,064 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-28 05:37:13,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 05:37:13,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2023-01-28 05:37:13,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:37:13,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:13,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:37:13,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:13,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022513750] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 05:37:13,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 05:37:13,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-01-28 05:37:13,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793849699] [2023-01-28 05:37:13,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 05:37:13,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-01-28 05:37:13,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:37:13,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-01-28 05:37:13,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-01-28 05:37:13,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 146 [2023-01-28 05:37:13,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 41 transitions, 395 flow. Second operand has 10 states, 10 states have (on average 58.4) internal successors, (584), 10 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:13,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:37:13,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 146 [2023-01-28 05:37:13,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:37:13,318 INFO L130 PetriNetUnfolder]: 100/179 cut-off events. [2023-01-28 05:37:13,319 INFO L131 PetriNetUnfolder]: For 1852/1852 co-relation queries the response was YES. [2023-01-28 05:37:13,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1172 conditions, 179 events. 100/179 cut-off events. For 1852/1852 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 522 event pairs, 0 based on Foata normal form. 12/191 useless extension candidates. Maximal degree in co-relation 914. Up to 113 conditions per place. [2023-01-28 05:37:13,320 INFO L137 encePairwiseOnDemand]: 141/146 looper letters, 50 selfloop transitions, 17 changer transitions 11/78 dead transitions. [2023-01-28 05:37:13,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 78 transitions, 909 flow [2023-01-28 05:37:13,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-01-28 05:37:13,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-01-28 05:37:13,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 787 transitions. [2023-01-28 05:37:13,334 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41464699683877765 [2023-01-28 05:37:13,334 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 787 transitions. [2023-01-28 05:37:13,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 787 transitions. [2023-01-28 05:37:13,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:37:13,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 787 transitions. [2023-01-28 05:37:13,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 60.53846153846154) internal successors, (787), 13 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:13,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 146.0) internal successors, (2044), 14 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:13,339 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 146.0) internal successors, (2044), 14 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:13,339 INFO L175 Difference]: Start difference. First operand has 58 places, 41 transitions, 395 flow. Second operand 13 states and 787 transitions. [2023-01-28 05:37:13,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 78 transitions, 909 flow [2023-01-28 05:37:13,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 78 transitions, 835 flow, removed 29 selfloop flow, removed 3 redundant places. [2023-01-28 05:37:13,344 INFO L231 Difference]: Finished difference. Result has 74 places, 53 transitions, 546 flow [2023-01-28 05:37:13,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=546, PETRI_PLACES=74, PETRI_TRANSITIONS=53} [2023-01-28 05:37:13,345 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 56 predicate places. [2023-01-28 05:37:13,345 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 53 transitions, 546 flow [2023-01-28 05:37:13,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 58.4) internal successors, (584), 10 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:13,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:37:13,346 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:37:13,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-01-28 05:37:13,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:13,551 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 05:37:13,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:37:13,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1556551870, now seen corresponding path program 6 times [2023-01-28 05:37:13,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:37:13,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087240070] [2023-01-28 05:37:13,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:13,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:37:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:13,639 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 05:37:13,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:37:13,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087240070] [2023-01-28 05:37:13,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087240070] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:37:13,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065699314] [2023-01-28 05:37:13,640 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-01-28 05:37:13,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:13,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:37:13,641 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:37:13,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-01-28 05:37:13,685 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2023-01-28 05:37:13,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-28 05:37:13,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjunts are in the unsatisfiable core [2023-01-28 05:37:13,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:37:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 05:37:13,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-01-28 05:37:13,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065699314] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 05:37:13,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-01-28 05:37:13,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-01-28 05:37:13,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094464666] [2023-01-28 05:37:13,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 05:37:13,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 05:37:13,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:37:13,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 05:37:13,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-01-28 05:37:13,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 146 [2023-01-28 05:37:13,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 53 transitions, 546 flow. Second operand has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:13,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:37:13,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 146 [2023-01-28 05:37:13,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:37:13,779 INFO L130 PetriNetUnfolder]: 99/189 cut-off events. [2023-01-28 05:37:13,779 INFO L131 PetriNetUnfolder]: For 2064/2064 co-relation queries the response was YES. [2023-01-28 05:37:13,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1250 conditions, 189 events. 99/189 cut-off events. For 2064/2064 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 591 event pairs, 2 based on Foata normal form. 1/190 useless extension candidates. Maximal degree in co-relation 1086. Up to 112 conditions per place. [2023-01-28 05:37:13,780 INFO L137 encePairwiseOnDemand]: 141/146 looper letters, 17 selfloop transitions, 1 changer transitions 53/71 dead transitions. [2023-01-28 05:37:13,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 71 transitions, 851 flow [2023-01-28 05:37:13,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 05:37:13,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 05:37:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 368 transitions. [2023-01-28 05:37:13,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4200913242009132 [2023-01-28 05:37:13,782 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 368 transitions. [2023-01-28 05:37:13,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 368 transitions. [2023-01-28 05:37:13,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:37:13,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 368 transitions. [2023-01-28 05:37:13,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 61.333333333333336) internal successors, (368), 6 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:13,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:13,784 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:13,784 INFO L175 Difference]: Start difference. First operand has 74 places, 53 transitions, 546 flow. Second operand 6 states and 368 transitions. [2023-01-28 05:37:13,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 71 transitions, 851 flow [2023-01-28 05:37:13,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 71 transitions, 728 flow, removed 60 selfloop flow, removed 3 redundant places. [2023-01-28 05:37:13,790 INFO L231 Difference]: Finished difference. Result has 78 places, 17 transitions, 155 flow [2023-01-28 05:37:13,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=155, PETRI_PLACES=78, PETRI_TRANSITIONS=17} [2023-01-28 05:37:13,790 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 60 predicate places. [2023-01-28 05:37:13,790 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 17 transitions, 155 flow [2023-01-28 05:37:13,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:13,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 05:37:13,791 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 05:37:13,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-01-28 05:37:13,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-01-28 05:37:13,996 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 05:37:13,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 05:37:13,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1217237182, now seen corresponding path program 7 times [2023-01-28 05:37:13,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 05:37:13,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797782009] [2023-01-28 05:37:13,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 05:37:13,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 05:37:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-28 05:37:14,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 05:37:14,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797782009] [2023-01-28 05:37:14,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797782009] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-28 05:37:14,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859934482] [2023-01-28 05:37:14,097 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-01-28 05:37:14,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:14,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 05:37:14,117 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-28 05:37:14,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-01-28 05:37:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 05:37:14,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2023-01-28 05:37:14,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-28 05:37:14,247 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 05:37:14,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-28 05:37:14,297 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-01-28 05:37:14,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859934482] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-28 05:37:14,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-28 05:37:14,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 3] total 12 [2023-01-28 05:37:14,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161448990] [2023-01-28 05:37:14,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-28 05:37:14,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-01-28 05:37:14,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 05:37:14,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-01-28 05:37:14,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-01-28 05:37:14,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 146 [2023-01-28 05:37:14,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 17 transitions, 155 flow. Second operand has 13 states, 13 states have (on average 59.15384615384615) internal successors, (769), 13 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:14,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 05:37:14,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 146 [2023-01-28 05:37:14,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 05:37:14,400 INFO L130 PetriNetUnfolder]: 20/56 cut-off events. [2023-01-28 05:37:14,400 INFO L131 PetriNetUnfolder]: For 1161/1161 co-relation queries the response was YES. [2023-01-28 05:37:14,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 56 events. 20/56 cut-off events. For 1161/1161 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 108 event pairs, 0 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 353. Up to 19 conditions per place. [2023-01-28 05:37:14,400 INFO L137 encePairwiseOnDemand]: 140/146 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2023-01-28 05:37:14,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 31 transitions, 359 flow [2023-01-28 05:37:14,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-01-28 05:37:14,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-01-28 05:37:14,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 535 transitions. [2023-01-28 05:37:14,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4071537290715373 [2023-01-28 05:37:14,402 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 535 transitions. [2023-01-28 05:37:14,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 535 transitions. [2023-01-28 05:37:14,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 05:37:14,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 535 transitions. [2023-01-28 05:37:14,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 59.44444444444444) internal successors, (535), 9 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:14,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:14,405 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:14,405 INFO L175 Difference]: Start difference. First operand has 78 places, 17 transitions, 155 flow. Second operand 9 states and 535 transitions. [2023-01-28 05:37:14,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 31 transitions, 359 flow [2023-01-28 05:37:14,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 31 transitions, 219 flow, removed 52 selfloop flow, removed 24 redundant places. [2023-01-28 05:37:14,407 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-01-28 05:37:14,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-01-28 05:37:14,407 INFO L281 CegarLoopForPetriNet]: 18 programPoint places, 25 predicate places. [2023-01-28 05:37:14,407 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-01-28 05:37:14,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 59.15384615384615) internal successors, (769), 13 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 05:37:14,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 05:37:14,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 05:37:14,410 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-01-28 05:37:14,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-01-28 05:37:14,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-28 05:37:14,614 INFO L445 BasicCegarLoop]: Path program histogram: [7, 2, 1, 1] [2023-01-28 05:37:14,617 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 05:37:14,617 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 05:37:14,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 05:37:14 BasicIcfg [2023-01-28 05:37:14,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 05:37:14,620 INFO L158 Benchmark]: Toolchain (without parser) took 7863.67ms. Allocated memory was 323.0MB in the beginning and 457.2MB in the end (delta: 134.2MB). Free memory was 264.6MB in the beginning and 166.0MB in the end (delta: 98.7MB). Peak memory consumption was 233.5MB. Max. memory is 16.0GB. [2023-01-28 05:37:14,620 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 323.0MB. Free memory is still 272.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 05:37:14,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.18ms. Allocated memory is still 323.0MB. Free memory was 264.4MB in the beginning and 253.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 05:37:14,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.06ms. Allocated memory is still 323.0MB. Free memory was 253.6MB in the beginning and 252.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 05:37:14,620 INFO L158 Benchmark]: Boogie Preprocessor took 23.10ms. Allocated memory is still 323.0MB. Free memory was 252.1MB in the beginning and 250.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 05:37:14,620 INFO L158 Benchmark]: RCFGBuilder took 256.85ms. Allocated memory is still 323.0MB. Free memory was 250.9MB in the beginning and 238.9MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 05:37:14,621 INFO L158 Benchmark]: TraceAbstraction took 7375.06ms. Allocated memory was 323.0MB in the beginning and 457.2MB in the end (delta: 134.2MB). Free memory was 238.3MB in the beginning and 166.0MB in the end (delta: 72.4MB). Peak memory consumption was 208.3MB. Max. memory is 16.0GB. [2023-01-28 05:37:14,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 323.0MB. Free memory is still 272.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 168.18ms. Allocated memory is still 323.0MB. Free memory was 264.4MB in the beginning and 253.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 20.06ms. Allocated memory is still 323.0MB. Free memory was 253.6MB in the beginning and 252.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 23.10ms. Allocated memory is still 323.0MB. Free memory was 252.1MB in the beginning and 250.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 256.85ms. Allocated memory is still 323.0MB. Free memory was 250.9MB in the beginning and 238.9MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 7375.06ms. Allocated memory was 323.0MB in the beginning and 457.2MB in the end (delta: 134.2MB). Free memory was 238.3MB in the beginning and 166.0MB in the end (delta: 72.4MB). Peak memory consumption was 208.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 70 PlacesBefore, 18 PlacesAfterwards, 69 TransitionsBefore, 13 TransitionsAfterwards, 368 CoEnabledTransitionPairs, 6 FixpointIterations, 38 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 4 ConcurrentYvCompositions, 4 ChoiceCompositions, 67 TotalNumberOfCompositions, 388 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 388, independent: 388, independent conditional: 0, independent unconditional: 388, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 207, independent: 207, independent conditional: 0, independent unconditional: 207, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 388, independent: 181, independent conditional: 0, independent unconditional: 181, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 207, unknown conditional: 0, unknown unconditional: 207] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 70]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 90 locations, 3 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: 7.3s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 228 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 955 IncrementalHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 0 mSDtfsCounter, 955 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 285 GetRequests, 180 SyntacticMatches, 8 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=546occurred in iteration=9, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 265 NumberOfCodeBlocks, 265 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 331 ConstructedInterpolants, 0 QuantifiedInterpolants, 1932 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1002 ConjunctsInSsa, 107 ConjunctsInUnsatCore, 27 InterpolantComputations, 6 PerfectInterpolantSequences, 34/77 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 05:37:14,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...