./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/product-lines/elevator_spec2_product20.cil.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'e1240a0d3e559b8971965b03cecb352351a22be921567ab044722f9bb2872bc1'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product20.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e1240a0d3e559b8971965b03cecb352351a22be921567ab044722f9bb2872bc1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 23:20:51,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 23:20:51,494 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 23:20:51,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 23:20:51,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 23:20:51,513 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 23:20:51,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 23:20:51,514 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 23:20:51,514 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 23:20:51,514 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 23:20:51,514 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 23:20:51,514 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 23:20:51,514 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 23:20:51,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 23:20:51,515 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 23:20:51,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 23:20:51,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 23:20:51,515 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 23:20:51,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 23:20:51,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 23:20:51,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 23:20:51,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 23:20:51,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 23:20:51,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 23:20:51,515 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 23:20:51,515 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 23:20:51,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 23:20:51,516 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 23:20:51,516 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 23:20:51,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 23:20:51,516 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 23:20:51,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 23:20:51,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:20:51,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 23:20:51,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 23:20:51,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 23:20:51,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 23:20:51,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 23:20:51,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 23:20:51,517 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 23:20:51,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 23:20:51,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 23:20:51,517 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1240a0d3e559b8971965b03cecb352351a22be921567ab044722f9bb2872bc1 [2024-11-06 23:20:51,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 23:20:51,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 23:20:51,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 23:20:51,761 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 23:20:51,761 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 23:20:51,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product20.cil.c [2024-11-06 23:20:52,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 23:20:53,178 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 23:20:53,181 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product20.cil.c [2024-11-06 23:20:53,202 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b69f234b/d6f1725ba2fd465ab66c255c327349e0/FLAGef59432c8 [2024-11-06 23:20:53,218 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8b69f234b/d6f1725ba2fd465ab66c255c327349e0 [2024-11-06 23:20:53,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 23:20:53,222 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 23:20:53,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 23:20:53,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 23:20:53,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 23:20:53,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67668491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53, skipping insertion in model container [2024-11-06 23:20:53,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 23:20:53,573 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product20.cil.c[38445,38458] [2024-11-06 23:20:53,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:20:53,680 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 23:20:53,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [48] [2024-11-06 23:20:53,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [236] [2024-11-06 23:20:53,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1824] [2024-11-06 23:20:53,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1833] [2024-11-06 23:20:53,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2199] [2024-11-06 23:20:53,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2861] [2024-11-06 23:20:53,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2875] [2024-11-06 23:20:53,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2913] [2024-11-06 23:20:53,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3006] [2024-11-06 23:20:53,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3356] [2024-11-06 23:20:53,741 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product20.cil.c[38445,38458] [2024-11-06 23:20:53,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:20:53,789 INFO L204 MainTranslator]: Completed translation [2024-11-06 23:20:53,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53 WrapperNode [2024-11-06 23:20:53,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 23:20:53,791 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 23:20:53,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 23:20:53,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 23:20:53,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,848 INFO L138 Inliner]: procedures = 96, calls = 346, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 1133 [2024-11-06 23:20:53,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 23:20:53,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 23:20:53,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 23:20:53,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 23:20:53,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,865 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,900 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-06 23:20:53,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,926 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 23:20:53,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 23:20:53,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 23:20:53,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 23:20:53,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (1/1) ... [2024-11-06 23:20:53,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:20:53,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 23:20:53,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 23:20:53,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 23:20:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 23:20:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-06 23:20:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-06 23:20:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-06 23:20:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-06 23:20:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-06 23:20:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-06 23:20:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-06 23:20:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-06 23:20:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-06 23:20:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-06 23:20:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-06 23:20:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-06 23:20:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-06 23:20:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-06 23:20:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-06 23:20:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-06 23:20:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-06 23:20:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-06 23:20:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-06 23:20:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-06 23:20:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-06 23:20:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-06 23:20:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-06 23:20:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-06 23:20:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-06 23:20:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-06 23:20:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-06 23:20:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-06 23:20:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-06 23:20:53,999 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-06 23:20:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-06 23:20:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-06 23:20:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-06 23:20:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 23:20:54,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 23:20:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-06 23:20:54,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-06 23:20:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-11-06 23:20:54,002 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-11-06 23:20:54,174 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 23:20:54,176 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 23:20:55,192 INFO L? ?]: Removed 451 outVars from TransFormulas that were not future-live. [2024-11-06 23:20:55,193 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 23:20:55,214 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 23:20:55,217 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 23:20:55,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:20:55 BoogieIcfgContainer [2024-11-06 23:20:55,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 23:20:55,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 23:20:55,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 23:20:55,223 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 23:20:55,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:20:53" (1/3) ... [2024-11-06 23:20:55,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22752f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:20:55, skipping insertion in model container [2024-11-06 23:20:55,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:20:53" (2/3) ... [2024-11-06 23:20:55,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22752f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:20:55, skipping insertion in model container [2024-11-06 23:20:55,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:20:55" (3/3) ... [2024-11-06 23:20:55,225 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product20.cil.c [2024-11-06 23:20:55,235 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 23:20:55,235 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 23:20:55,294 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 23:20:55,302 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@1f8e963f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 23:20:55,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 23:20:55,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 569 states, 443 states have (on average 1.6862302483069977) internal successors, (747), 466 states have internal predecessors, (747), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 92 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-06 23:20:55,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-06 23:20:55,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:20:55,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:20:55,317 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:20:55,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:20:55,320 INFO L85 PathProgramCache]: Analyzing trace with hash 69269955, now seen corresponding path program 1 times [2024-11-06 23:20:55,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:20:55,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175183789] [2024-11-06 23:20:55,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:20:55,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:20:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:20:55,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:20:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:20:55,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:20:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:20:55,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:20:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:20:56,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-06 23:20:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:20:56,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:20:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:20:56,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:20:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:20:56,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:20:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:20:56,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:20:56,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:20:56,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175183789] [2024-11-06 23:20:56,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175183789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:20:56,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:20:56,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:20:56,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544326909] [2024-11-06 23:20:56,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:20:56,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:20:56,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:20:56,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:20:56,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:20:56,337 INFO L87 Difference]: Start difference. First operand has 569 states, 443 states have (on average 1.6862302483069977) internal successors, (747), 466 states have internal predecessors, (747), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 92 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:00,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:00,433 INFO L93 Difference]: Finished difference Result 1281 states and 2159 transitions. [2024-11-06 23:21:00,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:21:00,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2024-11-06 23:21:00,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:00,450 INFO L225 Difference]: With dead ends: 1281 [2024-11-06 23:21:00,450 INFO L226 Difference]: Without dead ends: 724 [2024-11-06 23:21:00,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:21:00,457 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 686 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 2738 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:00,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 1196 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2738 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-06 23:21:00,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-06 23:21:00,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 561. [2024-11-06 23:21:00,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6819221967963387) internal successors, (735), 458 states have internal predecessors, (735), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-06 23:21:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 928 transitions. [2024-11-06 23:21:00,570 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 928 transitions. Word has length 60 [2024-11-06 23:21:00,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:00,571 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 928 transitions. [2024-11-06 23:21:00,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:00,571 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 928 transitions. [2024-11-06 23:21:00,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-06 23:21:00,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:00,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:00,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 23:21:00,574 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:00,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:00,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1582622137, now seen corresponding path program 1 times [2024-11-06 23:21:00,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:00,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18108300] [2024-11-06 23:21:00,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:00,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:00,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:00,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:00,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:01,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-06 23:21:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:01,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:01,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:01,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:01,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:01,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:01,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18108300] [2024-11-06 23:21:01,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18108300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:01,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:01,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:21:01,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165336209] [2024-11-06 23:21:01,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:01,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:21:01,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:01,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:21:01,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:21:01,133 INFO L87 Difference]: Start difference. First operand 561 states and 928 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:04,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:04,809 INFO L93 Difference]: Finished difference Result 1267 states and 2125 transitions. [2024-11-06 23:21:04,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:21:04,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-11-06 23:21:04,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:04,816 INFO L225 Difference]: With dead ends: 1267 [2024-11-06 23:21:04,817 INFO L226 Difference]: Without dead ends: 724 [2024-11-06 23:21:04,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:21:04,820 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 684 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 2853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:04,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 1156 Invalid, 2853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 2727 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-06 23:21:04,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-06 23:21:04,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 561. [2024-11-06 23:21:04,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6796338672768878) internal successors, (734), 458 states have internal predecessors, (734), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-06 23:21:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 927 transitions. [2024-11-06 23:21:04,879 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 927 transitions. Word has length 63 [2024-11-06 23:21:04,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:04,879 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 927 transitions. [2024-11-06 23:21:04,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:04,879 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 927 transitions. [2024-11-06 23:21:04,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-06 23:21:04,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:04,881 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:04,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 23:21:04,881 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:04,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:04,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1632470035, now seen corresponding path program 1 times [2024-11-06 23:21:04,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:04,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167553330] [2024-11-06 23:21:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:04,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:05,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:05,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:05,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:05,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:05,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-06 23:21:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:05,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:05,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:05,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:05,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:05,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167553330] [2024-11-06 23:21:05,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167553330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:05,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:05,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:21:05,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040577614] [2024-11-06 23:21:05,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:05,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:21:05,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:05,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:21:05,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:21:05,299 INFO L87 Difference]: Start difference. First operand 561 states and 927 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:08,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:08,207 INFO L93 Difference]: Finished difference Result 1267 states and 2124 transitions. [2024-11-06 23:21:08,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:21:08,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2024-11-06 23:21:08,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:08,212 INFO L225 Difference]: With dead ends: 1267 [2024-11-06 23:21:08,212 INFO L226 Difference]: Without dead ends: 724 [2024-11-06 23:21:08,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:21:08,215 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 1130 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 2847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:08,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 1148 Invalid, 2847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-06 23:21:08,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-06 23:21:08,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 561. [2024-11-06 23:21:08,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.677345537757437) internal successors, (733), 458 states have internal predecessors, (733), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-06 23:21:08,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 926 transitions. [2024-11-06 23:21:08,288 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 926 transitions. Word has length 64 [2024-11-06 23:21:08,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:08,288 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 926 transitions. [2024-11-06 23:21:08,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:08,288 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 926 transitions. [2024-11-06 23:21:08,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-06 23:21:08,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:08,290 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:08,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 23:21:08,290 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:08,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:08,290 INFO L85 PathProgramCache]: Analyzing trace with hash -2079372939, now seen corresponding path program 1 times [2024-11-06 23:21:08,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:08,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573748682] [2024-11-06 23:21:08,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:08,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:08,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:08,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:08,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-06 23:21:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:08,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-06 23:21:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:08,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:08,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:08,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:08,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:08,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573748682] [2024-11-06 23:21:08,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573748682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:08,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:08,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:21:08,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66538377] [2024-11-06 23:21:08,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:08,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:21:08,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:08,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:21:08,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:21:08,716 INFO L87 Difference]: Start difference. First operand 561 states and 926 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:11,981 INFO L93 Difference]: Finished difference Result 1267 states and 2123 transitions. [2024-11-06 23:21:11,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:21:11,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-06 23:21:11,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:11,985 INFO L225 Difference]: With dead ends: 1267 [2024-11-06 23:21:11,986 INFO L226 Difference]: Without dead ends: 724 [2024-11-06 23:21:11,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:21:11,988 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 1130 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:11,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 1133 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 2578 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-06 23:21:11,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-06 23:21:12,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 561. [2024-11-06 23:21:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6750572082379862) internal successors, (732), 458 states have internal predecessors, (732), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-06 23:21:12,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 925 transitions. [2024-11-06 23:21:12,042 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 925 transitions. Word has length 65 [2024-11-06 23:21:12,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:12,042 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 925 transitions. [2024-11-06 23:21:12,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:12,042 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 925 transitions. [2024-11-06 23:21:12,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-06 23:21:12,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:12,043 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:12,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 23:21:12,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:12,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:12,043 INFO L85 PathProgramCache]: Analyzing trace with hash -2144548657, now seen corresponding path program 1 times [2024-11-06 23:21:12,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:12,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120506948] [2024-11-06 23:21:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:12,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:12,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:12,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:12,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-06 23:21:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:12,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-06 23:21:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:12,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:12,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:12,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:12,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:12,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:12,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:12,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120506948] [2024-11-06 23:21:12,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120506948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:12,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:12,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:21:12,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026963992] [2024-11-06 23:21:12,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:12,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:21:12,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:12,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:21:12,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:21:12,429 INFO L87 Difference]: Start difference. First operand 561 states and 925 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:15,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:15,589 INFO L93 Difference]: Finished difference Result 1267 states and 2122 transitions. [2024-11-06 23:21:15,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:21:15,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-06 23:21:15,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:15,594 INFO L225 Difference]: With dead ends: 1267 [2024-11-06 23:21:15,594 INFO L226 Difference]: Without dead ends: 724 [2024-11-06 23:21:15,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:21:15,597 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 678 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 2846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:15,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 1162 Invalid, 2846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 2721 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-06 23:21:15,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-06 23:21:15,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 561. [2024-11-06 23:21:15,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6727688787185355) internal successors, (731), 458 states have internal predecessors, (731), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-06 23:21:15,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 924 transitions. [2024-11-06 23:21:15,657 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 924 transitions. Word has length 66 [2024-11-06 23:21:15,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:15,659 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 924 transitions. [2024-11-06 23:21:15,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 924 transitions. [2024-11-06 23:21:15,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-06 23:21:15,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:15,660 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:15,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 23:21:15,660 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:15,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:15,661 INFO L85 PathProgramCache]: Analyzing trace with hash -832189135, now seen corresponding path program 1 times [2024-11-06 23:21:15,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:15,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692361465] [2024-11-06 23:21:15,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:15,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:15,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:15,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:15,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:16,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-06 23:21:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:16,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:16,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:16,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:16,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:16,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:16,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:16,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692361465] [2024-11-06 23:21:16,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692361465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:16,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:16,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-06 23:21:16,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683405390] [2024-11-06 23:21:16,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:16,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 23:21:16,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:16,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 23:21:16,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:21:16,094 INFO L87 Difference]: Start difference. First operand 561 states and 924 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:19,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:19,230 INFO L93 Difference]: Finished difference Result 1239 states and 2063 transitions. [2024-11-06 23:21:19,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-06 23:21:19,230 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-06 23:21:19,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:19,234 INFO L225 Difference]: With dead ends: 1239 [2024-11-06 23:21:19,234 INFO L226 Difference]: Without dead ends: 736 [2024-11-06 23:21:19,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:21:19,236 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 1188 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 4028 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 4298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 4028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:19,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 1795 Invalid, 4298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 4028 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-06 23:21:19,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-06 23:21:19,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 561. [2024-11-06 23:21:19,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6613272311212814) internal successors, (726), 458 states have internal predecessors, (726), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-06 23:21:19,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 919 transitions. [2024-11-06 23:21:19,304 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 919 transitions. Word has length 67 [2024-11-06 23:21:19,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:19,304 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 919 transitions. [2024-11-06 23:21:19,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:19,304 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 919 transitions. [2024-11-06 23:21:19,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-06 23:21:19,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:19,307 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:19,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 23:21:19,307 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:19,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:19,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1045699021, now seen corresponding path program 1 times [2024-11-06 23:21:19,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:19,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711880787] [2024-11-06 23:21:19,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:19,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:19,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:19,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:19,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:19,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:19,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-06 23:21:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:19,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:19,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:19,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:19,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:19,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711880787] [2024-11-06 23:21:19,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711880787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:19,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:19,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-06 23:21:19,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541657763] [2024-11-06 23:21:19,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:19,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 23:21:19,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:19,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 23:21:19,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:21:19,782 INFO L87 Difference]: Start difference. First operand 561 states and 919 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:23,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:23,052 INFO L93 Difference]: Finished difference Result 1239 states and 2058 transitions. [2024-11-06 23:21:23,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-06 23:21:23,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-06 23:21:23,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:23,056 INFO L225 Difference]: With dead ends: 1239 [2024-11-06 23:21:23,056 INFO L226 Difference]: Without dead ends: 736 [2024-11-06 23:21:23,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:21:23,058 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 739 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 4148 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 4279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 4148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:23,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 1731 Invalid, 4279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 4148 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-06 23:21:23,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-11-06 23:21:23,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 561. [2024-11-06 23:21:23,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6498855835240274) internal successors, (721), 458 states have internal predecessors, (721), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-06 23:21:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 914 transitions. [2024-11-06 23:21:23,123 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 914 transitions. Word has length 68 [2024-11-06 23:21:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:23,123 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 914 transitions. [2024-11-06 23:21:23,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:23,124 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 914 transitions. [2024-11-06 23:21:23,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-06 23:21:23,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:23,125 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:23,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 23:21:23,125 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:23,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:23,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1182173814, now seen corresponding path program 1 times [2024-11-06 23:21:23,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:23,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535289555] [2024-11-06 23:21:23,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:23,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:23,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:23,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:23,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:23,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-06 23:21:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:23,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:23,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:23,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:23,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:23,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:23,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535289555] [2024-11-06 23:21:23,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535289555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:23,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:23,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-06 23:21:23,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881340140] [2024-11-06 23:21:23,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:23,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-06 23:21:23,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:23,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-06 23:21:23,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-06 23:21:23,622 INFO L87 Difference]: Start difference. First operand 561 states and 914 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:21:28,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:28,414 INFO L93 Difference]: Finished difference Result 1244 states and 2062 transitions. [2024-11-06 23:21:28,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-06 23:21:28,414 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-06 23:21:28,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:28,419 INFO L225 Difference]: With dead ends: 1244 [2024-11-06 23:21:28,419 INFO L226 Difference]: Without dead ends: 750 [2024-11-06 23:21:28,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-06 23:21:28,421 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 754 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 6443 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 6569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 6443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:28,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 2684 Invalid, 6569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [126 Valid, 6443 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-06 23:21:28,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-06 23:21:28,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 574. [2024-11-06 23:21:28,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 447 states have (on average 1.6465324384787472) internal successors, (736), 470 states have internal predecessors, (736), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2024-11-06 23:21:28,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 933 transitions. [2024-11-06 23:21:28,498 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 933 transitions. Word has length 69 [2024-11-06 23:21:28,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:28,499 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 933 transitions. [2024-11-06 23:21:28,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 8 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:21:28,499 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 933 transitions. [2024-11-06 23:21:28,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-06 23:21:28,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:28,500 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:28,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 23:21:28,500 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:28,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:28,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1951343829, now seen corresponding path program 1 times [2024-11-06 23:21:28,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:28,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628062397] [2024-11-06 23:21:28,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:28,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:28,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:28,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:28,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:28,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-06 23:21:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:28,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:28,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:28,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:28,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:28,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:28,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628062397] [2024-11-06 23:21:28,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628062397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:28,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:28,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:21:28,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252249424] [2024-11-06 23:21:28,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:28,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:21:28,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:28,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:21:28,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:21:28,898 INFO L87 Difference]: Start difference. First operand 574 states and 933 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:31,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:31,722 INFO L93 Difference]: Finished difference Result 1270 states and 2104 transitions. [2024-11-06 23:21:31,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 23:21:31,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2024-11-06 23:21:31,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:31,728 INFO L225 Difference]: With dead ends: 1270 [2024-11-06 23:21:31,728 INFO L226 Difference]: Without dead ends: 758 [2024-11-06 23:21:31,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:21:31,730 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 737 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 2639 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 2770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 2639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:31,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 1156 Invalid, 2770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 2639 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-06 23:21:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-06 23:21:31,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 574. [2024-11-06 23:21:31,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 447 states have (on average 1.6353467561521253) internal successors, (731), 470 states have internal predecessors, (731), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2024-11-06 23:21:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 928 transitions. [2024-11-06 23:21:31,801 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 928 transitions. Word has length 69 [2024-11-06 23:21:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:31,801 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 928 transitions. [2024-11-06 23:21:31,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 928 transitions. [2024-11-06 23:21:31,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-06 23:21:31,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:31,802 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:31,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 23:21:31,802 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:31,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:31,803 INFO L85 PathProgramCache]: Analyzing trace with hash -181173421, now seen corresponding path program 1 times [2024-11-06 23:21:31,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:31,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484595201] [2024-11-06 23:21:31,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:31,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:32,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:32,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:32,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:32,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-06 23:21:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:32,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:32,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:32,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:32,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:32,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:32,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484595201] [2024-11-06 23:21:32,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484595201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:32,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:32,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:21:32,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364562068] [2024-11-06 23:21:32,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:32,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:21:32,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:32,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:21:32,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:21:32,302 INFO L87 Difference]: Start difference. First operand 574 states and 928 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:21:36,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:36,425 INFO L93 Difference]: Finished difference Result 1247 states and 2059 transitions. [2024-11-06 23:21:36,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 23:21:36,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2024-11-06 23:21:36,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:36,429 INFO L225 Difference]: With dead ends: 1247 [2024-11-06 23:21:36,429 INFO L226 Difference]: Without dead ends: 750 [2024-11-06 23:21:36,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-06 23:21:36,431 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 724 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 4844 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 4973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 4844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:36,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2027 Invalid, 4973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 4844 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-06 23:21:36,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-06 23:21:36,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 574. [2024-11-06 23:21:36,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 447 states have (on average 1.633109619686801) internal successors, (730), 470 states have internal predecessors, (730), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2024-11-06 23:21:36,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 927 transitions. [2024-11-06 23:21:36,488 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 927 transitions. Word has length 70 [2024-11-06 23:21:36,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:36,488 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 927 transitions. [2024-11-06 23:21:36,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:21:36,488 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 927 transitions. [2024-11-06 23:21:36,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-06 23:21:36,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:36,489 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:36,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 23:21:36,489 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:36,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:36,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1243875891, now seen corresponding path program 1 times [2024-11-06 23:21:36,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:36,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649874486] [2024-11-06 23:21:36,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:36,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:36,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:36,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:36,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:36,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-06 23:21:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:36,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:36,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:36,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:36,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:36,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649874486] [2024-11-06 23:21:36,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649874486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:36,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:36,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:21:36,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223552605] [2024-11-06 23:21:36,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:36,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:21:36,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:36,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:21:36,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:21:36,893 INFO L87 Difference]: Start difference. First operand 574 states and 927 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:39,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:39,894 INFO L93 Difference]: Finished difference Result 1270 states and 2095 transitions. [2024-11-06 23:21:39,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 23:21:39,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-06 23:21:39,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:39,899 INFO L225 Difference]: With dead ends: 1270 [2024-11-06 23:21:39,899 INFO L226 Difference]: Without dead ends: 758 [2024-11-06 23:21:39,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:21:39,900 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 735 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 2618 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 2618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:39,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1137 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 2618 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-06 23:21:39,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-06 23:21:39,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 574. [2024-11-06 23:21:39,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 447 states have (on average 1.621923937360179) internal successors, (725), 470 states have internal predecessors, (725), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2024-11-06 23:21:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 922 transitions. [2024-11-06 23:21:39,971 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 922 transitions. Word has length 70 [2024-11-06 23:21:39,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:39,972 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 922 transitions. [2024-11-06 23:21:39,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:39,972 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 922 transitions. [2024-11-06 23:21:39,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-06 23:21:39,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:39,973 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:39,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 23:21:39,974 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:39,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:39,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1916022968, now seen corresponding path program 1 times [2024-11-06 23:21:39,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:39,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299113688] [2024-11-06 23:21:39,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:39,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:40,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:40,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:40,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:40,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:40,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-06 23:21:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:40,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:40,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:40,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:40,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:40,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299113688] [2024-11-06 23:21:40,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299113688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:40,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:40,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:21:40,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619894791] [2024-11-06 23:21:40,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:40,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:21:40,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:40,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:21:40,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:21:40,415 INFO L87 Difference]: Start difference. First operand 574 states and 922 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:21:44,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:44,291 INFO L93 Difference]: Finished difference Result 1256 states and 2063 transitions. [2024-11-06 23:21:44,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 23:21:44,291 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 71 [2024-11-06 23:21:44,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:44,295 INFO L225 Difference]: With dead ends: 1256 [2024-11-06 23:21:44,295 INFO L226 Difference]: Without dead ends: 756 [2024-11-06 23:21:44,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-06 23:21:44,297 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 1174 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 4621 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 2018 SdHoareTripleChecker+Invalid, 4900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 4621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:44,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 2018 Invalid, 4900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 4621 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-06 23:21:44,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-06 23:21:44,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 577. [2024-11-06 23:21:44,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 450 states have (on average 1.6155555555555556) internal successors, (727), 473 states have internal predecessors, (727), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2024-11-06 23:21:44,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 924 transitions. [2024-11-06 23:21:44,354 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 924 transitions. Word has length 71 [2024-11-06 23:21:44,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:44,354 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 924 transitions. [2024-11-06 23:21:44,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:21:44,354 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 924 transitions. [2024-11-06 23:21:44,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-06 23:21:44,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:44,355 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:44,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-06 23:21:44,355 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:44,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:44,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1456276902, now seen corresponding path program 1 times [2024-11-06 23:21:44,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:44,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594443836] [2024-11-06 23:21:44,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:44,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:44,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:44,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:44,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:44,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-06 23:21:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:44,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:44,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:44,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:44,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:44,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:44,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594443836] [2024-11-06 23:21:44,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594443836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:44,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:44,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:21:44,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745731631] [2024-11-06 23:21:44,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:44,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:21:44,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:44,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:21:44,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:21:44,763 INFO L87 Difference]: Start difference. First operand 577 states and 924 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:47,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:47,629 INFO L93 Difference]: Finished difference Result 1279 states and 2095 transitions. [2024-11-06 23:21:47,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 23:21:47,630 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2024-11-06 23:21:47,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:47,634 INFO L225 Difference]: With dead ends: 1279 [2024-11-06 23:21:47,634 INFO L226 Difference]: Without dead ends: 764 [2024-11-06 23:21:47,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 23:21:47,637 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 733 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 2591 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 2721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 2591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:47,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 1159 Invalid, 2721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 2591 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-06 23:21:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-06 23:21:47,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 577. [2024-11-06 23:21:47,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 450 states have (on average 1.6044444444444443) internal successors, (722), 473 states have internal predecessors, (722), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2024-11-06 23:21:47,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 919 transitions. [2024-11-06 23:21:47,707 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 919 transitions. Word has length 71 [2024-11-06 23:21:47,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:47,708 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 919 transitions. [2024-11-06 23:21:47,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:47,708 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 919 transitions. [2024-11-06 23:21:47,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-06 23:21:47,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:47,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:47,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-06 23:21:47,709 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:47,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:47,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1416234744, now seen corresponding path program 1 times [2024-11-06 23:21:47,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:47,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600801090] [2024-11-06 23:21:47,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:47,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:47,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:47,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:47,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:48,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-06 23:21:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:48,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:48,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:48,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:48,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:48,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:48,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600801090] [2024-11-06 23:21:48,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600801090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:48,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:48,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:21:48,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489131400] [2024-11-06 23:21:48,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:48,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:21:48,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:48,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:21:48,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:21:48,083 INFO L87 Difference]: Start difference. First operand 577 states and 919 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:51,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:51,088 INFO L93 Difference]: Finished difference Result 1260 states and 2060 transitions. [2024-11-06 23:21:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-06 23:21:51,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-06 23:21:51,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:51,092 INFO L225 Difference]: With dead ends: 1260 [2024-11-06 23:21:51,092 INFO L226 Difference]: Without dead ends: 760 [2024-11-06 23:21:51,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:21:51,093 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 714 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:51,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 1112 Invalid, 2699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-06 23:21:51,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-11-06 23:21:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 581. [2024-11-06 23:21:51,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 454 states have (on average 1.5969162995594715) internal successors, (725), 477 states have internal predecessors, (725), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2024-11-06 23:21:51,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 922 transitions. [2024-11-06 23:21:51,164 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 922 transitions. Word has length 72 [2024-11-06 23:21:51,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:51,164 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 922 transitions. [2024-11-06 23:21:51,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:51,165 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 922 transitions. [2024-11-06 23:21:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-06 23:21:51,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:51,165 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:51,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-06 23:21:51,166 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:51,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:51,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1505150760, now seen corresponding path program 1 times [2024-11-06 23:21:51,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:51,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504739372] [2024-11-06 23:21:51,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:51,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:51,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:51,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:51,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:51,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-06 23:21:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:51,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:51,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:51,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:51,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:51,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:51,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504739372] [2024-11-06 23:21:51,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504739372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:51,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:51,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:21:51,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603800570] [2024-11-06 23:21:51,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:51,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:21:51,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:51,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:21:51,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:21:51,497 INFO L87 Difference]: Start difference. First operand 581 states and 922 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:54,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:54,412 INFO L93 Difference]: Finished difference Result 1315 states and 2123 transitions. [2024-11-06 23:21:54,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:21:54,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-06 23:21:54,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:54,416 INFO L225 Difference]: With dead ends: 1315 [2024-11-06 23:21:54,416 INFO L226 Difference]: Without dead ends: 732 [2024-11-06 23:21:54,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:21:54,418 INFO L432 NwaCegarLoop]: 323 mSDtfsCounter, 676 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:54,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1117 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 2578 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-06 23:21:54,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-06 23:21:54,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 562. [2024-11-06 23:21:54,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 438 states have (on average 1.6050228310502284) internal successors, (703), 459 states have internal predecessors, (703), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-06 23:21:54,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 896 transitions. [2024-11-06 23:21:54,472 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 896 transitions. Word has length 72 [2024-11-06 23:21:54,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:54,473 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 896 transitions. [2024-11-06 23:21:54,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:21:54,473 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 896 transitions. [2024-11-06 23:21:54,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-06 23:21:54,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:54,474 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:54,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-06 23:21:54,474 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:54,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:54,474 INFO L85 PathProgramCache]: Analyzing trace with hash 2014302141, now seen corresponding path program 1 times [2024-11-06 23:21:54,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:54,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701271633] [2024-11-06 23:21:54,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:54,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:54,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:54,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:54,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:54,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-06 23:21:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:54,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:54,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:54,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:54,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:54,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701271633] [2024-11-06 23:21:54,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701271633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:54,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:54,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:21:54,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620506193] [2024-11-06 23:21:54,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:54,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:21:54,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:54,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:21:54,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:21:54,866 INFO L87 Difference]: Start difference. First operand 562 states and 896 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:21:58,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:21:58,889 INFO L93 Difference]: Finished difference Result 1239 states and 2025 transitions. [2024-11-06 23:21:58,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 23:21:58,889 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 73 [2024-11-06 23:21:58,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:21:58,892 INFO L225 Difference]: With dead ends: 1239 [2024-11-06 23:21:58,893 INFO L226 Difference]: Without dead ends: 742 [2024-11-06 23:21:58,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-06 23:21:58,894 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 697 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 4688 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 4815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 4688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-06 23:21:58,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 2011 Invalid, 4815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 4688 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-06 23:21:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-11-06 23:21:58,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 567. [2024-11-06 23:21:58,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 443 states have (on average 1.5981941309255079) internal successors, (708), 464 states have internal predecessors, (708), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-06 23:21:58,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 901 transitions. [2024-11-06 23:21:58,951 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 901 transitions. Word has length 73 [2024-11-06 23:21:58,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:21:58,951 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 901 transitions. [2024-11-06 23:21:58,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:21:58,951 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 901 transitions. [2024-11-06 23:21:58,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-06 23:21:58,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:21:58,952 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:21:58,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 23:21:58,952 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:21:58,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:21:58,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1972759379, now seen corresponding path program 1 times [2024-11-06 23:21:58,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:21:58,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621917102] [2024-11-06 23:21:58,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:21:58,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:21:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:59,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:21:59,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:59,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:59,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:21:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:59,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-06 23:21:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:59,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:59,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:21:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:59,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-06 23:21:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:21:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:21:59,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:21:59,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621917102] [2024-11-06 23:21:59,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621917102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:21:59,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:21:59,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-06 23:21:59,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839228346] [2024-11-06 23:21:59,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:21:59,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 23:21:59,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:21:59,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 23:21:59,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:21:59,542 INFO L87 Difference]: Start difference. First operand 567 states and 901 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-06 23:22:05,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:22:05,188 INFO L93 Difference]: Finished difference Result 2063 states and 3453 transitions. [2024-11-06 23:22:05,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 23:22:05,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) Word has length 74 [2024-11-06 23:22:05,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:22:05,197 INFO L225 Difference]: With dead ends: 2063 [2024-11-06 23:22:05,197 INFO L226 Difference]: Without dead ends: 1574 [2024-11-06 23:22:05,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-06 23:22:05,199 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 4332 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 3719 mSolverCounterSat, 1169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4423 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 4888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1169 IncrementalHoareTripleChecker+Valid, 3719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-06 23:22:05,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4423 Valid, 1701 Invalid, 4888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1169 Valid, 3719 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-06 23:22:05,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2024-11-06 23:22:05,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1082. [2024-11-06 23:22:05,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 845 states have (on average 1.6331360946745561) internal successors, (1380), 875 states have internal predecessors, (1380), 192 states have call successors, (192), 43 states have call predecessors, (192), 44 states have return successors, (194), 176 states have call predecessors, (194), 187 states have call successors, (194) [2024-11-06 23:22:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1766 transitions. [2024-11-06 23:22:05,339 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1766 transitions. Word has length 74 [2024-11-06 23:22:05,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:22:05,340 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1766 transitions. [2024-11-06 23:22:05,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 6 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-06 23:22:05,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1766 transitions. [2024-11-06 23:22:05,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-06 23:22:05,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:22:05,343 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:22:05,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-06 23:22:05,343 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:22:05,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:22:05,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1522445330, now seen corresponding path program 1 times [2024-11-06 23:22:05,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:22:05,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676856232] [2024-11-06 23:22:05,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:22:05,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:22:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:05,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:22:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:05,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:05,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:22:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:05,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-06 23:22:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:05,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:05,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:05,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:06,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:22:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:06,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:06,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:06,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-06 23:22:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:06,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-06 23:22:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:06,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:06,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:06,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-06 23:22:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:06,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-06 23:22:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:06,334 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-06 23:22:06,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:22:06,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676856232] [2024-11-06 23:22:06,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676856232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:22:06,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:22:06,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-06 23:22:06,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453772275] [2024-11-06 23:22:06,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:22:06,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-06 23:22:06,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:22:06,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-06 23:22:06,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2024-11-06 23:22:06,335 INFO L87 Difference]: Start difference. First operand 1082 states and 1766 transitions. Second operand has 23 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 15 states have internal predecessors, (87), 5 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (14), 8 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-06 23:22:18,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:22:18,630 INFO L93 Difference]: Finished difference Result 3175 states and 5427 transitions. [2024-11-06 23:22:18,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-06 23:22:18,631 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 15 states have internal predecessors, (87), 5 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (14), 8 states have call predecessors, (14), 5 states have call successors, (14) Word has length 126 [2024-11-06 23:22:18,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:22:18,640 INFO L225 Difference]: With dead ends: 3175 [2024-11-06 23:22:18,640 INFO L226 Difference]: Without dead ends: 2171 [2024-11-06 23:22:18,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=427, Invalid=2329, Unknown=0, NotChecked=0, Total=2756 [2024-11-06 23:22:18,645 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 5093 mSDsluCounter, 4527 mSDsCounter, 0 mSdLazyCounter, 16166 mSolverCounterSat, 2088 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5093 SdHoareTripleChecker+Valid, 4919 SdHoareTripleChecker+Invalid, 18254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2088 IncrementalHoareTripleChecker+Valid, 16166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-06 23:22:18,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5093 Valid, 4919 Invalid, 18254 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2088 Valid, 16166 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-06 23:22:18,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2024-11-06 23:22:18,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 1564. [2024-11-06 23:22:18,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1208 states have (on average 1.5885761589403973) internal successors, (1919), 1238 states have internal predecessors, (1919), 278 states have call successors, (278), 61 states have call predecessors, (278), 77 states have return successors, (362), 275 states have call predecessors, (362), 273 states have call successors, (362) [2024-11-06 23:22:18,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2559 transitions. [2024-11-06 23:22:18,886 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2559 transitions. Word has length 126 [2024-11-06 23:22:18,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:22:18,887 INFO L471 AbstractCegarLoop]: Abstraction has 1564 states and 2559 transitions. [2024-11-06 23:22:18,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 15 states have internal predecessors, (87), 5 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (14), 8 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-06 23:22:18,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2559 transitions. [2024-11-06 23:22:18,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-06 23:22:18,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:22:18,890 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:22:18,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 23:22:18,890 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:22:18,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:22:18,890 INFO L85 PathProgramCache]: Analyzing trace with hash -603531315, now seen corresponding path program 1 times [2024-11-06 23:22:18,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:22:18,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789790133] [2024-11-06 23:22:18,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:22:18,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:22:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:22:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-06 23:22:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-06 23:22:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:22:19,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-06 23:22:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-06 23:22:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:22:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-06 23:22:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-06 23:22:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-06 23:22:19,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:22:19,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789790133] [2024-11-06 23:22:19,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789790133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 23:22:19,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145021137] [2024-11-06 23:22:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:22:19,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 23:22:19,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 23:22:19,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 23:22:19,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 23:22:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:22:20,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 1701 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 23:22:20,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 23:22:20,195 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-06 23:22:20,195 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 23:22:20,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145021137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:22:20,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 23:22:20,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 20 [2024-11-06 23:22:20,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123366416] [2024-11-06 23:22:20,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:22:20,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 23:22:20,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:22:20,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 23:22:20,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2024-11-06 23:22:20,197 INFO L87 Difference]: Start difference. First operand 1564 states and 2559 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-06 23:22:20,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:22:20,823 INFO L93 Difference]: Finished difference Result 3090 states and 5194 transitions. [2024-11-06 23:22:20,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:22:20,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2024-11-06 23:22:20,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:22:20,832 INFO L225 Difference]: With dead ends: 3090 [2024-11-06 23:22:20,832 INFO L226 Difference]: Without dead ends: 1604 [2024-11-06 23:22:20,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-11-06 23:22:20,852 INFO L432 NwaCegarLoop]: 868 mSDtfsCounter, 837 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 23:22:20,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 2230 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 23:22:20,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2024-11-06 23:22:21,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1596. [2024-11-06 23:22:21,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 1236 states have (on average 1.5914239482200647) internal successors, (1967), 1266 states have internal predecessors, (1967), 278 states have call successors, (278), 65 states have call predecessors, (278), 81 states have return successors, (350), 275 states have call predecessors, (350), 273 states have call successors, (350) [2024-11-06 23:22:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2595 transitions. [2024-11-06 23:22:21,192 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2595 transitions. Word has length 128 [2024-11-06 23:22:21,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:22:21,192 INFO L471 AbstractCegarLoop]: Abstraction has 1596 states and 2595 transitions. [2024-11-06 23:22:21,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-06 23:22:21,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2595 transitions. [2024-11-06 23:22:21,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-06 23:22:21,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:22:21,195 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 23:22:21,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 23:22:21,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 23:22:21,395 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:22:21,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:22:21,396 INFO L85 PathProgramCache]: Analyzing trace with hash 109461360, now seen corresponding path program 1 times [2024-11-06 23:22:21,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:22:21,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120072226] [2024-11-06 23:22:21,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:22:21,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:22:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat