./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product26.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_spec3_product26.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', '64b60b46be25872d2112a950c23ddbe99bccee21bea4e463fd90753650d2a7bd'] 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_spec3_product26.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 64b60b46be25872d2112a950c23ddbe99bccee21bea4e463fd90753650d2a7bd --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 23:23:59,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 23:23:59,694 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 23:23:59,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 23:23:59,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 23:23:59,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 23:23:59,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 23:23:59,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 23:23:59,724 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 23:23:59,725 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 23:23:59,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 23:23:59,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 23:23:59,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 23:23:59,726 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 23:23:59,726 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 23:23:59,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 23:23:59,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 23:23:59,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 23:23:59,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:23:59,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 23:23:59,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 23:23:59,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 23:23:59,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 23:23:59,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 23:23:59,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 23:23:59,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 23:23:59,728 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 23:23:59,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 23:23:59,728 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 -> 64b60b46be25872d2112a950c23ddbe99bccee21bea4e463fd90753650d2a7bd [2024-11-06 23:23:59,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 23:23:59,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 23:23:59,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 23:23:59,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 23:23:59,974 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 23:23:59,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product26.cil.c [2024-11-06 23:24:01,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 23:24:01,437 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 23:24:01,437 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product26.cil.c [2024-11-06 23:24:01,455 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1f87ccc6d/a4901e5f93b241a9bee01b9e046f57b5/FLAG33f70dc98 [2024-11-06 23:24:01,702 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1f87ccc6d/a4901e5f93b241a9bee01b9e046f57b5 [2024-11-06 23:24:01,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 23:24:01,705 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 23:24:01,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 23:24:01,706 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 23:24:01,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 23:24:01,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:24:01" (1/1) ... [2024-11-06 23:24:01,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac3195f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:01, skipping insertion in model container [2024-11-06 23:24:01,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:24:01" (1/1) ... [2024-11-06 23:24:01,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 23:24:02,121 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_spec3_product26.cil.c[67702,67715] [2024-11-06 23:24:02,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:24:02,144 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 23:24:02,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-06 23:24:02,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [67] [2024-11-06 23:24:02,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [168] [2024-11-06 23:24:02,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [520] [2024-11-06 23:24:02,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2041] [2024-11-06 23:24:02,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2407] [2024-11-06 23:24:02,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3068] [2024-11-06 23:24:02,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3186] [2024-11-06 23:24:02,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3195] [2024-11-06 23:24:02,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [3230] [2024-11-06 23:24:02,233 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_spec3_product26.cil.c[67702,67715] [2024-11-06 23:24:02,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 23:24:02,262 INFO L204 MainTranslator]: Completed translation [2024-11-06 23:24:02,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02 WrapperNode [2024-11-06 23:24:02,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 23:24:02,263 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 23:24:02,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 23:24:02,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 23:24:02,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,290 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,331 INFO L138 Inliner]: procedures = 91, calls = 346, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 862 [2024-11-06 23:24:02,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 23:24:02,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 23:24:02,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 23:24:02,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 23:24:02,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,354 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,373 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 23:24:02,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 23:24:02,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 23:24:02,430 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 23:24:02,430 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 23:24:02,431 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (1/1) ... [2024-11-06 23:24:02,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 23:24:02,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 23:24:02,457 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 23:24:02,460 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 23:24:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 23:24:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-11-06 23:24:02,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-11-06 23:24:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-06 23:24:02,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-06 23:24:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-06 23:24:02,477 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-06 23:24:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-06 23:24:02,477 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-06 23:24:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-06 23:24:02,477 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-06 23:24:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-06 23:24:02,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-06 23:24:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-06 23:24:02,477 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-06 23:24:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-06 23:24:02,478 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-06 23:24:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-06 23:24:02,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-06 23:24:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-06 23:24:02,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-06 23:24:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-06 23:24:02,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-06 23:24:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-06 23:24:02,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-06 23:24:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-11-06 23:24:02,478 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-11-06 23:24:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-06 23:24:02,479 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-06 23:24:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-11-06 23:24:02,479 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-11-06 23:24:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-06 23:24:02,479 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-06 23:24:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__empty [2024-11-06 23:24:02,479 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__empty [2024-11-06 23:24:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-06 23:24:02,479 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-06 23:24:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-06 23:24:02,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-06 23:24:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-06 23:24:02,479 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-06 23:24:02,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-06 23:24:02,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-06 23:24:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-06 23:24:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-06 23:24:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-06 23:24:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-06 23:24:02,481 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-06 23:24:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-06 23:24:02,481 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-06 23:24:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-06 23:24:02,481 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-06 23:24:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-06 23:24:02,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-06 23:24:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 23:24:02,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 23:24:02,481 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-06 23:24:02,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-06 23:24:02,644 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 23:24:02,647 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 23:24:03,711 INFO L? ?]: Removed 451 outVars from TransFormulas that were not future-live. [2024-11-06 23:24:03,712 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 23:24:03,738 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 23:24:03,739 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 23:24:03,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:24:03 BoogieIcfgContainer [2024-11-06 23:24:03,740 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 23:24:03,743 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 23:24:03,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 23:24:03,747 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 23:24:03,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:24:01" (1/3) ... [2024-11-06 23:24:03,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629fd087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:24:03, skipping insertion in model container [2024-11-06 23:24:03,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:24:02" (2/3) ... [2024-11-06 23:24:03,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629fd087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:24:03, skipping insertion in model container [2024-11-06 23:24:03,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:24:03" (3/3) ... [2024-11-06 23:24:03,749 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product26.cil.c [2024-11-06 23:24:03,759 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 23:24:03,760 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 23:24:03,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 23:24:03,821 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;@61d30263, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 23:24:03,822 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 23:24:03,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 578 states, 449 states have (on average 1.6859688195991092) internal successors, (757), 469 states have internal predecessors, (757), 102 states have call successors, (102), 25 states have call predecessors, (102), 25 states have return successors, (102), 98 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-06 23:24:03,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-06 23:24:03,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:03,840 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:03,840 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:03,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:03,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1615056188, now seen corresponding path program 1 times [2024-11-06 23:24:03,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:03,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457473739] [2024-11-06 23:24:03,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:03,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:04,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:04,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:04,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:04,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:04,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:04,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-06 23:24:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:04,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-06 23:24:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:04,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:04,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:04,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457473739] [2024-11-06 23:24:04,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457473739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:04,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:04,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:24:04,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45200222] [2024-11-06 23:24:04,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:04,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:24:04,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:04,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:24:04,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:24:04,941 INFO L87 Difference]: Start difference. First operand has 578 states, 449 states have (on average 1.6859688195991092) internal successors, (757), 469 states have internal predecessors, (757), 102 states have call successors, (102), 25 states have call predecessors, (102), 25 states have return successors, (102), 98 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:10,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:10,791 INFO L93 Difference]: Finished difference Result 1437 states and 2483 transitions. [2024-11-06 23:24:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:24:10,794 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 63 [2024-11-06 23:24:10,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:10,816 INFO L225 Difference]: With dead ends: 1437 [2024-11-06 23:24:10,816 INFO L226 Difference]: Without dead ends: 863 [2024-11-06 23:24:10,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:24:10,828 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 1507 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 5049 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 5450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 5049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:10,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1610 Valid, 2380 Invalid, 5450 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [401 Valid, 5049 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-06 23:24:10,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-11-06 23:24:10,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 581. [2024-11-06 23:24:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 452 states have (on average 1.676991150442478) internal successors, (758), 472 states have internal predecessors, (758), 103 states have call successors, (103), 25 states have call predecessors, (103), 25 states have return successors, (102), 97 states have call predecessors, (102), 100 states have call successors, (102) [2024-11-06 23:24:11,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 963 transitions. [2024-11-06 23:24:11,006 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 963 transitions. Word has length 63 [2024-11-06 23:24:11,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:11,008 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 963 transitions. [2024-11-06 23:24:11,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:11,009 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 963 transitions. [2024-11-06 23:24:11,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-06 23:24:11,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:11,012 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:11,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 23:24:11,012 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:11,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:11,012 INFO L85 PathProgramCache]: Analyzing trace with hash -102377112, now seen corresponding path program 1 times [2024-11-06 23:24:11,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:11,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495833777] [2024-11-06 23:24:11,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:11,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:11,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:11,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:11,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:11,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:11,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:11,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-06 23:24:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:11,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-06 23:24:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:11,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:11,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:11,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495833777] [2024-11-06 23:24:11,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495833777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:11,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:11,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:24:11,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043853113] [2024-11-06 23:24:11,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:11,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:24:11,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:11,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:24:11,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:24:11,600 INFO L87 Difference]: Start difference. First operand 581 states and 963 transitions. Second operand has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:16,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:16,249 INFO L93 Difference]: Finished difference Result 1428 states and 2444 transitions. [2024-11-06 23:24:16,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 23:24:16,250 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 64 [2024-11-06 23:24:16,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:16,255 INFO L225 Difference]: With dead ends: 1428 [2024-11-06 23:24:16,255 INFO L226 Difference]: Without dead ends: 863 [2024-11-06 23:24:16,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-06 23:24:16,257 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 869 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 5263 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 5450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 5263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:16,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 2722 Invalid, 5450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 5263 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-06 23:24:16,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-11-06 23:24:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 581. [2024-11-06 23:24:16,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 452 states have (on average 1.674778761061947) internal successors, (757), 472 states have internal predecessors, (757), 103 states have call successors, (103), 25 states have call predecessors, (103), 25 states have return successors, (102), 97 states have call predecessors, (102), 100 states have call successors, (102) [2024-11-06 23:24:16,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 962 transitions. [2024-11-06 23:24:16,319 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 962 transitions. Word has length 64 [2024-11-06 23:24:16,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:16,319 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 962 transitions. [2024-11-06 23:24:16,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.75) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:16,320 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 962 transitions. [2024-11-06 23:24:16,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-06 23:24:16,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:16,323 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:16,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 23:24:16,324 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:16,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:16,324 INFO L85 PathProgramCache]: Analyzing trace with hash 638342732, now seen corresponding path program 1 times [2024-11-06 23:24:16,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:16,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933343226] [2024-11-06 23:24:16,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:16,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:16,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:16,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:16,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:16,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:16,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-06 23:24:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:16,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-06 23:24:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:16,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-06 23:24:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:16,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:16,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933343226] [2024-11-06 23:24:16,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933343226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:16,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:16,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:24:16,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516357268] [2024-11-06 23:24:16,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:16,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:24:16,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:16,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:24:16,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:24:16,730 INFO L87 Difference]: Start difference. First operand 581 states and 962 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:24:20,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:20,275 INFO L93 Difference]: Finished difference Result 1422 states and 2427 transitions. [2024-11-06 23:24:20,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 23:24:20,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 4 states have call predecessors, (9), 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 23:24:20,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:20,282 INFO L225 Difference]: With dead ends: 1422 [2024-11-06 23:24:20,283 INFO L226 Difference]: Without dead ends: 826 [2024-11-06 23:24:20,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:24:20,288 INFO L432 NwaCegarLoop]: 431 mSDtfsCounter, 1377 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 2666 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 3050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 2666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:20,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 1391 Invalid, 3050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 2666 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-06 23:24:20,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2024-11-06 23:24:20,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 557. [2024-11-06 23:24:20,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 431 states have (on average 1.665893271461717) internal successors, (718), 449 states have internal predecessors, (718), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-06 23:24:20,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 919 transitions. [2024-11-06 23:24:20,348 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 919 transitions. Word has length 64 [2024-11-06 23:24:20,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:20,348 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 919 transitions. [2024-11-06 23:24:20,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:24:20,348 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 919 transitions. [2024-11-06 23:24:20,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-06 23:24:20,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:20,350 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:20,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 23:24:20,352 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:20,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:20,352 INFO L85 PathProgramCache]: Analyzing trace with hash 2003466896, now seen corresponding path program 1 times [2024-11-06 23:24:20,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:20,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739707509] [2024-11-06 23:24:20,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:20,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:20,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:20,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:20,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:20,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:20,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:20,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-06 23:24:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:20,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-06 23:24:20,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:20,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:20,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739707509] [2024-11-06 23:24:20,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739707509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:20,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:20,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:24:20,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760914242] [2024-11-06 23:24:20,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:20,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:24:20,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:20,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:24:20,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:24:20,760 INFO L87 Difference]: Start difference. First operand 557 states and 919 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:25,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:25,157 INFO L93 Difference]: Finished difference Result 1385 states and 2358 transitions. [2024-11-06 23:24:25,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:24:25,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-06 23:24:25,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:25,162 INFO L225 Difference]: With dead ends: 1385 [2024-11-06 23:24:25,162 INFO L226 Difference]: Without dead ends: 820 [2024-11-06 23:24:25,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:24:25,164 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 863 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 5070 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 5255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 5070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:25,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 2702 Invalid, 5255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 5070 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-06 23:24:25,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-06 23:24:25,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 551. [2024-11-06 23:24:25,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 425 states have (on average 1.6588235294117648) internal successors, (705), 443 states have internal predecessors, (705), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-06 23:24:25,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 906 transitions. [2024-11-06 23:24:25,232 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 906 transitions. Word has length 65 [2024-11-06 23:24:25,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:25,232 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 906 transitions. [2024-11-06 23:24:25,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:25,233 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 906 transitions. [2024-11-06 23:24:25,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-06 23:24:25,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:25,233 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:25,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 23:24:25,234 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:25,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:25,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1654452592, now seen corresponding path program 1 times [2024-11-06 23:24:25,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:25,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820416874] [2024-11-06 23:24:25,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:25,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:25,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:25,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:25,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:25,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:25,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:25,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:25,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-06 23:24:25,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:25,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-06 23:24:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:25,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:25,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:25,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820416874] [2024-11-06 23:24:25,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820416874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:25,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:25,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:24:25,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473805511] [2024-11-06 23:24:25,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:25,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:24:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:25,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:24:25,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:24:25,638 INFO L87 Difference]: Start difference. First operand 551 states and 906 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:29,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:29,747 INFO L93 Difference]: Finished difference Result 1355 states and 2307 transitions. [2024-11-06 23:24:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 23:24:29,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2024-11-06 23:24:29,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:29,753 INFO L225 Difference]: With dead ends: 1355 [2024-11-06 23:24:29,753 INFO L226 Difference]: Without dead ends: 820 [2024-11-06 23:24:29,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-06 23:24:29,756 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 825 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 4937 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 2513 SdHoareTripleChecker+Invalid, 5127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 4937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:29,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 2513 Invalid, 5127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 4937 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-06 23:24:29,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-06 23:24:29,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 551. [2024-11-06 23:24:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 425 states have (on average 1.6564705882352941) internal successors, (704), 443 states have internal predecessors, (704), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-06 23:24:29,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 905 transitions. [2024-11-06 23:24:29,849 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 905 transitions. Word has length 66 [2024-11-06 23:24:29,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:29,849 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 905 transitions. [2024-11-06 23:24:29,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:29,849 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 905 transitions. [2024-11-06 23:24:29,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-06 23:24:29,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:29,850 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:29,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 23:24:29,850 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:29,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:29,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1171237165, now seen corresponding path program 1 times [2024-11-06 23:24:29,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:29,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173322578] [2024-11-06 23:24:29,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:29,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:30,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:30,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:30,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:30,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:30,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:30,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-06 23:24:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:30,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-06 23:24:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:30,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:30,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:30,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173322578] [2024-11-06 23:24:30,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173322578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:30,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:30,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:24:30,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567344752] [2024-11-06 23:24:30,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:30,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:24:30,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:30,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:24:30,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:24:30,240 INFO L87 Difference]: Start difference. First operand 551 states and 905 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:34,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:34,720 INFO L93 Difference]: Finished difference Result 1373 states and 2327 transitions. [2024-11-06 23:24:34,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:24:34,721 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-06 23:24:34,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:34,725 INFO L225 Difference]: With dead ends: 1373 [2024-11-06 23:24:34,725 INFO L226 Difference]: Without dead ends: 814 [2024-11-06 23:24:34,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:24:34,727 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 840 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 4941 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 5128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 4941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:34,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 2702 Invalid, 5128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 4941 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-06 23:24:34,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-06 23:24:34,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 545. [2024-11-06 23:24:34,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 419 states have (on average 1.6491646778042959) internal successors, (691), 437 states have internal predecessors, (691), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-06 23:24:34,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 892 transitions. [2024-11-06 23:24:34,778 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 892 transitions. Word has length 67 [2024-11-06 23:24:34,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:34,778 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 892 transitions. [2024-11-06 23:24:34,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:34,779 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 892 transitions. [2024-11-06 23:24:34,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-06 23:24:34,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:34,779 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:34,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 23:24:34,780 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:34,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:34,780 INFO L85 PathProgramCache]: Analyzing trace with hash 336986705, now seen corresponding path program 1 times [2024-11-06 23:24:34,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:34,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941702675] [2024-11-06 23:24:34,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:34,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:35,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:35,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:35,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:35,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:35,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:35,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:35,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-06 23:24:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:35,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-06 23:24:35,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:35,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:35,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:35,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941702675] [2024-11-06 23:24:35,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941702675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:35,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:35,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:24:35,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030068012] [2024-11-06 23:24:35,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:35,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:24:35,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:35,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:24:35,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:24:35,210 INFO L87 Difference]: Start difference. First operand 545 states and 892 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:39,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:39,308 INFO L93 Difference]: Finished difference Result 1343 states and 2278 transitions. [2024-11-06 23:24:39,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 23:24:39,309 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-06 23:24:39,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:39,313 INFO L225 Difference]: With dead ends: 1343 [2024-11-06 23:24:39,313 INFO L226 Difference]: Without dead ends: 814 [2024-11-06 23:24:39,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-06 23:24:39,315 INFO L432 NwaCegarLoop]: 418 mSDtfsCounter, 1333 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 4699 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 5089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 4699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:39,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 2478 Invalid, 5089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 4699 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-06 23:24:39,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-06 23:24:39,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 545. [2024-11-06 23:24:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 419 states have (on average 1.6467780429594272) internal successors, (690), 437 states have internal predecessors, (690), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-06 23:24:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 891 transitions. [2024-11-06 23:24:39,368 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 891 transitions. Word has length 68 [2024-11-06 23:24:39,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:39,368 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 891 transitions. [2024-11-06 23:24:39,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:39,368 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 891 transitions. [2024-11-06 23:24:39,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-06 23:24:39,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:39,369 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:39,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 23:24:39,369 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:39,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:39,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1481184175, now seen corresponding path program 1 times [2024-11-06 23:24:39,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:39,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612139846] [2024-11-06 23:24:39,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:39,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:39,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:39,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:39,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:39,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:39,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:39,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-06 23:24:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:39,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-06 23:24:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:39,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:39,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:39,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612139846] [2024-11-06 23:24:39,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612139846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:39,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:39,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:24:39,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522159653] [2024-11-06 23:24:39,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:39,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:24:39,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:39,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:24:39,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:24:39,816 INFO L87 Difference]: Start difference. First operand 545 states and 891 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:44,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:44,183 INFO L93 Difference]: Finished difference Result 1361 states and 2296 transitions. [2024-11-06 23:24:44,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-06 23:24:44,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 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 23:24:44,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:44,187 INFO L225 Difference]: With dead ends: 1361 [2024-11-06 23:24:44,187 INFO L226 Difference]: Without dead ends: 808 [2024-11-06 23:24:44,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:24:44,189 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 817 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 4849 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 5040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 4849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:44,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 2600 Invalid, 5040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 4849 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-06 23:24:44,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-06 23:24:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 539. [2024-11-06 23:24:44,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 413 states have (on average 1.639225181598063) internal successors, (677), 431 states have internal predecessors, (677), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-06 23:24:44,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 878 transitions. [2024-11-06 23:24:44,242 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 878 transitions. Word has length 69 [2024-11-06 23:24:44,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:44,242 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 878 transitions. [2024-11-06 23:24:44,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:44,242 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 878 transitions. [2024-11-06 23:24:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-06 23:24:44,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:44,243 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:44,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 23:24:44,244 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:44,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:44,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1041535216, now seen corresponding path program 1 times [2024-11-06 23:24:44,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:44,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136874001] [2024-11-06 23:24:44,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:44,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:44,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:44,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:44,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:44,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:44,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:44,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-06 23:24:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:44,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-06 23:24:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:44,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:44,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:44,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136874001] [2024-11-06 23:24:44,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136874001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:44,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:44,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:24:44,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804578843] [2024-11-06 23:24:44,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:44,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:24:44,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:44,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:24:44,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:24:44,640 INFO L87 Difference]: Start difference. First operand 539 states and 878 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:48,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:48,687 INFO L93 Difference]: Finished difference Result 1331 states and 2249 transitions. [2024-11-06 23:24:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 23:24:48,688 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2024-11-06 23:24:48,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:48,692 INFO L225 Difference]: With dead ends: 1331 [2024-11-06 23:24:48,692 INFO L226 Difference]: Without dead ends: 808 [2024-11-06 23:24:48,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-06 23:24:48,693 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 1304 mSDsluCounter, 2060 mSDsCounter, 0 mSdLazyCounter, 4614 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 5001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 4614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:48,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 2479 Invalid, 5001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 4614 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-06 23:24:48,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-06 23:24:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 539. [2024-11-06 23:24:48,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 413 states have (on average 1.6368038740920097) internal successors, (676), 431 states have internal predecessors, (676), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-06 23:24:48,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 877 transitions. [2024-11-06 23:24:48,747 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 877 transitions. Word has length 69 [2024-11-06 23:24:48,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:48,748 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 877 transitions. [2024-11-06 23:24:48,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:48,748 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 877 transitions. [2024-11-06 23:24:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-06 23:24:48,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:48,749 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:48,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 23:24:48,749 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:48,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:48,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1077546921, now seen corresponding path program 1 times [2024-11-06 23:24:48,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:48,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114440943] [2024-11-06 23:24:48,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:48,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:48,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:49,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:49,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:49,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:49,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:49,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-06 23:24:49,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:49,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-06 23:24:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:49,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:49,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:49,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114440943] [2024-11-06 23:24:49,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114440943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:49,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:49,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:24:49,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714500325] [2024-11-06 23:24:49,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:49,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:24:49,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:49,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:24:49,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:24:49,139 INFO L87 Difference]: Start difference. First operand 539 states and 877 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:24:52,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:52,266 INFO L93 Difference]: Finished difference Result 1337 states and 2253 transitions. [2024-11-06 23:24:52,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:24:52,266 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-06 23:24:52,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:52,270 INFO L225 Difference]: With dead ends: 1337 [2024-11-06 23:24:52,270 INFO L226 Difference]: Without dead ends: 814 [2024-11-06 23:24:52,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:24:52,272 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 773 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 2556 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 2747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 2556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:52,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 1364 Invalid, 2747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 2556 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-06 23:24:52,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-06 23:24:52,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 545. [2024-11-06 23:24:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 419 states have (on average 1.6276849642004774) internal successors, (682), 437 states have internal predecessors, (682), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-06 23:24:52,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 883 transitions. [2024-11-06 23:24:52,337 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 883 transitions. Word has length 70 [2024-11-06 23:24:52,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:52,337 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 883 transitions. [2024-11-06 23:24:52,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-06 23:24:52,337 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 883 transitions. [2024-11-06 23:24:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-06 23:24:52,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:52,338 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:52,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 23:24:52,339 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:52,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:52,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1921552423, now seen corresponding path program 1 times [2024-11-06 23:24:52,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:52,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360015556] [2024-11-06 23:24:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:52,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:52,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:52,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:52,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:52,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:52,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:52,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-06 23:24:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:52,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-06 23:24:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:52,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:52,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:52,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360015556] [2024-11-06 23:24:52,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360015556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:52,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:52,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 23:24:52,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731524014] [2024-11-06 23:24:52,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:52,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-06 23:24:52,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:52,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-06 23:24:52,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:24:52,748 INFO L87 Difference]: Start difference. First operand 545 states and 883 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:57,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:57,085 INFO L93 Difference]: Finished difference Result 1346 states and 2260 transitions. [2024-11-06 23:24:57,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 23:24:57,086 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2024-11-06 23:24:57,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:57,090 INFO L225 Difference]: With dead ends: 1346 [2024-11-06 23:24:57,090 INFO L226 Difference]: Without dead ends: 808 [2024-11-06 23:24:57,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-06 23:24:57,092 INFO L432 NwaCegarLoop]: 374 mSDtfsCounter, 790 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 4629 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 4827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 4629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:57,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 2261 Invalid, 4827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 4629 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-06 23:24:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-06 23:24:57,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 539. [2024-11-06 23:24:57,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 413 states have (on average 1.6343825665859564) internal successors, (675), 431 states have internal predecessors, (675), 102 states have call successors, (102), 25 states have call predecessors, (102), 23 states have return successors, (99), 96 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-06 23:24:57,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 876 transitions. [2024-11-06 23:24:57,160 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 876 transitions. Word has length 70 [2024-11-06 23:24:57,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:57,160 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 876 transitions. [2024-11-06 23:24:57,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:57,161 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 876 transitions. [2024-11-06 23:24:57,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-06 23:24:57,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:57,162 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:57,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 23:24:57,162 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:57,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:57,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1116442218, now seen corresponding path program 1 times [2024-11-06 23:24:57,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:57,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119767246] [2024-11-06 23:24:57,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:57,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:57,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:57,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:57,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:57,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:57,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:57,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-06 23:24:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:57,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-06 23:24:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:57,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-06 23:24:57,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:57,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119767246] [2024-11-06 23:24:57,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119767246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 23:24:57,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806862481] [2024-11-06 23:24:57,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:57,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 23:24:57,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 23:24:57,594 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 23:24:57,595 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 23:24:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:57,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 1487 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 23:24:57,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 23:24:57,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:24:57,877 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 23:24:57,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806862481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:57,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 23:24:57,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2024-11-06 23:24:57,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384292010] [2024-11-06 23:24:57,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:57,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 23:24:57,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:57,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 23:24:57,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-06 23:24:57,878 INFO L87 Difference]: Start difference. First operand 539 states and 876 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:57,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:57,994 INFO L93 Difference]: Finished difference Result 1529 states and 2518 transitions. [2024-11-06 23:24:57,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 23:24:57,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 3 states have call predecessors, (9), 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 23:24:57,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:58,000 INFO L225 Difference]: With dead ends: 1529 [2024-11-06 23:24:58,000 INFO L226 Difference]: Without dead ends: 1008 [2024-11-06 23:24:58,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-06 23:24:58,002 INFO L432 NwaCegarLoop]: 885 mSDtfsCounter, 841 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 1658 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:58,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 1658 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 23:24:58,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2024-11-06 23:24:58,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 993. [2024-11-06 23:24:58,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 768 states have (on average 1.6484375) internal successors, (1266), 803 states have internal predecessors, (1266), 180 states have call successors, (180), 45 states have call predecessors, (180), 44 states have return successors, (182), 172 states have call predecessors, (182), 177 states have call successors, (182) [2024-11-06 23:24:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1628 transitions. [2024-11-06 23:24:58,114 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1628 transitions. Word has length 71 [2024-11-06 23:24:58,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:58,114 INFO L471 AbstractCegarLoop]: Abstraction has 993 states and 1628 transitions. [2024-11-06 23:24:58,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1628 transitions. [2024-11-06 23:24:58,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-06 23:24:58,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:58,116 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:58,131 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 23:24:58,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-06 23:24:58,317 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:58,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:58,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1488771343, now seen corresponding path program 1 times [2024-11-06 23:24:58,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:58,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327842835] [2024-11-06 23:24:58,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:58,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:58,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:58,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:58,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:58,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:58,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:58,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-06 23:24:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:58,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-06 23:24:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-06 23:24:58,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:58,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327842835] [2024-11-06 23:24:58,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327842835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 23:24:58,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667407238] [2024-11-06 23:24:58,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:58,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 23:24:58,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 23:24:58,746 INFO L229 MonitoredProcess]: Starting monitored process 3 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 23:24:58,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 23:24:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:58,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 1488 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 23:24:58,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 23:24:58,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:24:58,998 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 23:24:58,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667407238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:58,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 23:24:58,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2024-11-06 23:24:58,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680551680] [2024-11-06 23:24:58,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:58,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 23:24:58,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:58,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 23:24:58,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-06 23:24:58,999 INFO L87 Difference]: Start difference. First operand 993 states and 1628 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:59,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:24:59,168 INFO L93 Difference]: Finished difference Result 2437 states and 4024 transitions. [2024-11-06 23:24:59,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 23:24:59,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 72 [2024-11-06 23:24:59,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:24:59,174 INFO L225 Difference]: With dead ends: 2437 [2024-11-06 23:24:59,175 INFO L226 Difference]: Without dead ends: 1462 [2024-11-06 23:24:59,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-06 23:24:59,178 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 841 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 23:24:59,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 1711 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 23:24:59,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2024-11-06 23:24:59,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1414. [2024-11-06 23:24:59,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1096 states have (on average 1.6614963503649636) internal successors, (1821), 1148 states have internal predecessors, (1821), 255 states have call successors, (255), 62 states have call predecessors, (255), 62 states have return successors, (262), 245 states have call predecessors, (262), 252 states have call successors, (262) [2024-11-06 23:24:59,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2338 transitions. [2024-11-06 23:24:59,335 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2338 transitions. Word has length 72 [2024-11-06 23:24:59,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:24:59,336 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 2338 transitions. [2024-11-06 23:24:59,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-06 23:24:59,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2338 transitions. [2024-11-06 23:24:59,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-06 23:24:59,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:24:59,337 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:24:59,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 23:24:59,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 23:24:59,538 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:24:59,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:24:59,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1710631331, now seen corresponding path program 1 times [2024-11-06 23:24:59,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:24:59,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360825780] [2024-11-06 23:24:59,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:24:59,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:24:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:59,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:59,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:59,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:24:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:59,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:24:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:59,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:24:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:59,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-06 23:24:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:59,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:24:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:59,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-06 23:24:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:24:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:24:59,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:24:59,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360825780] [2024-11-06 23:24:59,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360825780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:24:59,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:24:59,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-06 23:24:59,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713949391] [2024-11-06 23:24:59,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:24:59,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 23:24:59,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:24:59,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 23:24:59,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:24:59,926 INFO L87 Difference]: Start difference. First operand 1414 states and 2338 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-06 23:25:07,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:25:07,029 INFO L93 Difference]: Finished difference Result 5566 states and 9852 transitions. [2024-11-06 23:25:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-06 23:25:07,030 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2024-11-06 23:25:07,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:25:07,054 INFO L225 Difference]: With dead ends: 5566 [2024-11-06 23:25:07,054 INFO L226 Difference]: Without dead ends: 4170 [2024-11-06 23:25:07,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-06 23:25:07,060 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 3325 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 4595 mSolverCounterSat, 965 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3460 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 5560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 965 IncrementalHoareTripleChecker+Valid, 4595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-06 23:25:07,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3460 Valid, 2403 Invalid, 5560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [965 Valid, 4595 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-06 23:25:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2024-11-06 23:25:07,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3443. [2024-11-06 23:25:07,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3443 states, 2523 states have (on average 1.6302021403091558) internal successors, (4113), 2719 states have internal predecessors, (4113), 757 states have call successors, (757), 118 states have call predecessors, (757), 162 states have return successors, (1241), 755 states have call predecessors, (1241), 753 states have call successors, (1241) [2024-11-06 23:25:07,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3443 states to 3443 states and 6111 transitions. [2024-11-06 23:25:07,752 INFO L78 Accepts]: Start accepts. Automaton has 3443 states and 6111 transitions. Word has length 74 [2024-11-06 23:25:07,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:25:07,752 INFO L471 AbstractCegarLoop]: Abstraction has 3443 states and 6111 transitions. [2024-11-06 23:25:07,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-06 23:25:07,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3443 states and 6111 transitions. [2024-11-06 23:25:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-06 23:25:07,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:25:07,753 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:25:07,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-06 23:25:07,753 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:25:07,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:25:07,754 INFO L85 PathProgramCache]: Analyzing trace with hash -229252298, now seen corresponding path program 1 times [2024-11-06 23:25:07,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:25:07,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449578127] [2024-11-06 23:25:07,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:25:07,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:25:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:08,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:25:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:08,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:25:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:08,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:25:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:08,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:25:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:08,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:25:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:08,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-06 23:25:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:08,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:25:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:08,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-06 23:25:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:08,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-06 23:25:08,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:25:08,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449578127] [2024-11-06 23:25:08,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449578127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 23:25:08,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168415174] [2024-11-06 23:25:08,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:25:08,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 23:25:08,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 23:25:08,154 INFO L229 MonitoredProcess]: Starting monitored process 4 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 23:25:08,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 23:25:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:08,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 23:25:08,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 23:25:08,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 23:25:08,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 23:25:08,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168415174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:25:08,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 23:25:08,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-11-06 23:25:08,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921419636] [2024-11-06 23:25:08,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:25:08,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 23:25:08,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:25:08,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 23:25:08,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-06 23:25:08,451 INFO L87 Difference]: Start difference. First operand 3443 states and 6111 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-06 23:25:09,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:25:09,784 INFO L93 Difference]: Finished difference Result 9264 states and 16652 transitions. [2024-11-06 23:25:09,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 23:25:09,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 75 [2024-11-06 23:25:09,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:25:09,814 INFO L225 Difference]: With dead ends: 9264 [2024-11-06 23:25:09,814 INFO L226 Difference]: Without dead ends: 5839 [2024-11-06 23:25:09,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-06 23:25:09,832 INFO L432 NwaCegarLoop]: 849 mSDtfsCounter, 741 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 23:25:09,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 3298 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 23:25:09,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5839 states. [2024-11-06 23:25:11,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5839 to 5796. [2024-11-06 23:25:11,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5796 states, 4248 states have (on average 1.5908662900188324) internal successors, (6758), 4574 states have internal predecessors, (6758), 1260 states have call successors, (1260), 210 states have call predecessors, (1260), 287 states have return successors, (2170), 1261 states have call predecessors, (2170), 1254 states have call successors, (2170) [2024-11-06 23:25:11,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5796 states to 5796 states and 10188 transitions. [2024-11-06 23:25:11,131 INFO L78 Accepts]: Start accepts. Automaton has 5796 states and 10188 transitions. Word has length 75 [2024-11-06 23:25:11,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:25:11,132 INFO L471 AbstractCegarLoop]: Abstraction has 5796 states and 10188 transitions. [2024-11-06 23:25:11,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-06 23:25:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5796 states and 10188 transitions. [2024-11-06 23:25:11,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-06 23:25:11,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:25:11,133 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:25:11,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-06 23:25:11,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 23:25:11,334 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:25:11,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:25:11,334 INFO L85 PathProgramCache]: Analyzing trace with hash -41120062, now seen corresponding path program 1 times [2024-11-06 23:25:11,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:25:11,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944486870] [2024-11-06 23:25:11,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:25:11,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:25:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:11,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:25:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:11,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:25:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:11,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:25:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:11,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:25:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:11,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:25:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:11,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-06 23:25:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:11,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:25:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:11,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-06 23:25:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:11,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-06 23:25:11,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:25:11,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944486870] [2024-11-06 23:25:11,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944486870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:25:11,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:25:11,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:25:11,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921274608] [2024-11-06 23:25:11,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:25:11,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:25:11,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:25:11,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:25:11,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:25:11,633 INFO L87 Difference]: Start difference. First operand 5796 states and 10188 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-06 23:25:16,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:25:16,349 INFO L93 Difference]: Finished difference Result 12800 states and 22958 transitions. [2024-11-06 23:25:16,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 23:25:16,350 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2024-11-06 23:25:16,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:25:16,393 INFO L225 Difference]: With dead ends: 12800 [2024-11-06 23:25:16,393 INFO L226 Difference]: Without dead ends: 7022 [2024-11-06 23:25:16,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-06 23:25:16,418 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 778 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-06 23:25:16,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 1520 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-06 23:25:16,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7022 states. [2024-11-06 23:25:17,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7022 to 6296. [2024-11-06 23:25:17,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6296 states, 4494 states have (on average 1.577659101023587) internal successors, (7090), 4860 states have internal predecessors, (7090), 1496 states have call successors, (1496), 214 states have call predecessors, (1496), 305 states have return successors, (2657), 1511 states have call predecessors, (2657), 1490 states have call successors, (2657) [2024-11-06 23:25:17,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6296 states to 6296 states and 11243 transitions. [2024-11-06 23:25:17,830 INFO L78 Accepts]: Start accepts. Automaton has 6296 states and 11243 transitions. Word has length 75 [2024-11-06 23:25:17,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:25:17,831 INFO L471 AbstractCegarLoop]: Abstraction has 6296 states and 11243 transitions. [2024-11-06 23:25:17,831 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, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-06 23:25:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 6296 states and 11243 transitions. [2024-11-06 23:25:17,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-06 23:25:17,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:25:17,833 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:25:17,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 23:25:17,833 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:25:17,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:25:17,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1571611657, now seen corresponding path program 1 times [2024-11-06 23:25:17,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:25:17,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849915825] [2024-11-06 23:25:17,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:25:17,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:25:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:18,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:25:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:18,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:25:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:18,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:25:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:18,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:25:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:18,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:25:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:18,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-06 23:25:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:18,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:25:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:18,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-06 23:25:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:18,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-06 23:25:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:18,271 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-06 23:25:18,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:25:18,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849915825] [2024-11-06 23:25:18,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849915825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:25:18,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:25:18,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-06 23:25:18,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346396764] [2024-11-06 23:25:18,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:25:18,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 23:25:18,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:25:18,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 23:25:18,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-06 23:25:18,272 INFO L87 Difference]: Start difference. First operand 6296 states and 11243 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-06 23:25:27,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 23:25:27,828 INFO L93 Difference]: Finished difference Result 20256 states and 37658 transitions. [2024-11-06 23:25:27,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-06 23:25:27,828 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2024-11-06 23:25:27,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 23:25:27,900 INFO L225 Difference]: With dead ends: 20256 [2024-11-06 23:25:27,900 INFO L226 Difference]: Without dead ends: 13978 [2024-11-06 23:25:27,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-06 23:25:27,927 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 2308 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 4544 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2442 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 5189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 4544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-06 23:25:27,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2442 Valid, 2323 Invalid, 5189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [645 Valid, 4544 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-06 23:25:27,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13978 states. [2024-11-06 23:25:30,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13978 to 12492. [2024-11-06 23:25:30,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12492 states, 8918 states have (on average 1.575577483740749) internal successors, (14051), 9644 states have internal predecessors, (14051), 2964 states have call successors, (2964), 422 states have call predecessors, (2964), 609 states have return successors, (6055), 3005 states have call predecessors, (6055), 2954 states have call successors, (6055) [2024-11-06 23:25:30,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12492 states to 12492 states and 23070 transitions. [2024-11-06 23:25:30,555 INFO L78 Accepts]: Start accepts. Automaton has 12492 states and 23070 transitions. Word has length 83 [2024-11-06 23:25:30,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 23:25:30,555 INFO L471 AbstractCegarLoop]: Abstraction has 12492 states and 23070 transitions. [2024-11-06 23:25:30,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-06 23:25:30,556 INFO L276 IsEmpty]: Start isEmpty. Operand 12492 states and 23070 transitions. [2024-11-06 23:25:30,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-06 23:25:30,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 23:25:30,557 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 23:25:30,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-06 23:25:30,557 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 23:25:30,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 23:25:30,558 INFO L85 PathProgramCache]: Analyzing trace with hash 475861302, now seen corresponding path program 1 times [2024-11-06 23:25:30,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 23:25:30,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161731582] [2024-11-06 23:25:30,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 23:25:30,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 23:25:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:30,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:25:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:30,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:25:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:30,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-06 23:25:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:30,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-06 23:25:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:30,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-06 23:25:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:30,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-06 23:25:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:30,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-06 23:25:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:30,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-06 23:25:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:30,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-06 23:25:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 23:25:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-06 23:25:30,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 23:25:30,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161731582] [2024-11-06 23:25:30,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161731582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 23:25:30,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 23:25:30,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 23:25:30,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061183436] [2024-11-06 23:25:30,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 23:25:30,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 23:25:30,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 23:25:30,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 23:25:30,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 23:25:30,957 INFO L87 Difference]: Start difference. First operand 12492 states and 23070 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)