./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 79cd0e89b784c92aef5addf1ffd5f426704de99d9c0060c88cf4cdcbae792c3b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:57:32,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:57:33,020 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:57:33,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:57:33,033 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:57:33,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:57:33,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:57:33,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:57:33,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:57:33,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:57:33,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:57:33,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:57:33,084 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:57:33,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:57:33,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:57:33,087 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:57:33,087 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:57:33,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:57:33,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:57:33,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:57:33,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:57:33,090 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:57:33,090 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:57:33,091 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:57:33,091 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:57:33,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:57:33,092 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:57:33,092 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:57:33,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:57:33,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:57:33,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:57:33,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:57:33,095 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:57:33,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:57:33,095 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:57:33,095 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:57:33,095 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:57:33,096 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:57:33,096 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:57:33,096 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79cd0e89b784c92aef5addf1ffd5f426704de99d9c0060c88cf4cdcbae792c3b [2023-11-06 22:57:33,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:57:33,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:57:33,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:57:33,421 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:57:33,421 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:57:33,423 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c [2023-11-06 22:57:36,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:57:37,002 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:57:37,003 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c [2023-11-06 22:57:37,033 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/data/f9d4d1e31/dcb43517eb494b0ea261dd2c1661febf/FLAG79d2827e9 [2023-11-06 22:57:37,053 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/data/f9d4d1e31/dcb43517eb494b0ea261dd2c1661febf [2023-11-06 22:57:37,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:57:37,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:57:37,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:57:37,060 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:57:37,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:57:37,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:57:37" (1/1) ... [2023-11-06 22:57:37,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce607d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:37, skipping insertion in model container [2023-11-06 22:57:37,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:57:37" (1/1) ... [2023-11-06 22:57:37,164 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:57:37,329 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c[1545,1558] [2023-11-06 22:57:37,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:57:37,829 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:57:37,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-11-06 22:57:37,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [57] [2023-11-06 22:57:37,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [423] [2023-11-06 22:57:37,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [523] [2023-11-06 22:57:37,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [643] [2023-11-06 22:57:37,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [832] [2023-11-06 22:57:37,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1185] [2023-11-06 22:57:37,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1200] [2023-11-06 22:57:37,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2726] [2023-11-06 22:57:37,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3387] [2023-11-06 22:57:37,852 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/sv-benchmarks/c/product-lines/elevator_spec3_product11.cil.c[1545,1558] [2023-11-06 22:57:38,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:57:38,049 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:57:38,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38 WrapperNode [2023-11-06 22:57:38,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:57:38,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:57:38,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:57:38,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:57:38,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (1/1) ... [2023-11-06 22:57:38,100 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (1/1) ... [2023-11-06 22:57:38,173 INFO L138 Inliner]: procedures = 91, calls = 344, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 1100 [2023-11-06 22:57:38,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:57:38,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:57:38,175 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:57:38,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:57:38,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (1/1) ... [2023-11-06 22:57:38,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (1/1) ... [2023-11-06 22:57:38,203 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (1/1) ... [2023-11-06 22:57:38,203 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (1/1) ... [2023-11-06 22:57:38,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (1/1) ... [2023-11-06 22:57:38,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (1/1) ... [2023-11-06 22:57:38,326 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (1/1) ... [2023-11-06 22:57:38,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (1/1) ... [2023-11-06 22:57:38,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:57:38,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:57:38,359 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:57:38,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:57:38,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (1/1) ... [2023-11-06 22:57:38,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:57:38,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:57:38,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:57:38,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:57:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:57:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-11-06 22:57:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-11-06 22:57:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-11-06 22:57:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-11-06 22:57:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-11-06 22:57:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-11-06 22:57:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-11-06 22:57:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-11-06 22:57:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-11-06 22:57:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-11-06 22:57:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-11-06 22:57:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-11-06 22:57:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-06 22:57:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-06 22:57:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-06 22:57:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-06 22:57:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-11-06 22:57:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-11-06 22:57:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-11-06 22:57:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-11-06 22:57:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-11-06 22:57:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-11-06 22:57:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-11-06 22:57:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-11-06 22:57:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-11-06 22:57:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-11-06 22:57:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-11-06 22:57:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-11-06 22:57:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-11-06 22:57:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-11-06 22:57:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-11-06 22:57:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-11-06 22:57:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-11-06 22:57:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-11-06 22:57:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-11-06 22:57:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-11-06 22:57:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-11-06 22:57:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-11-06 22:57:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-11-06 22:57:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-11-06 22:57:38,506 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-11-06 22:57:38,506 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-11-06 22:57:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:57:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-11-06 22:57:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-11-06 22:57:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-11-06 22:57:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-11-06 22:57:38,507 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-11-06 22:57:38,507 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-11-06 22:57:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-11-06 22:57:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-11-06 22:57:38,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:57:38,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:57:38,509 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-11-06 22:57:38,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-11-06 22:57:38,707 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:57:38,710 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:57:39,764 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:57:39,777 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:57:39,778 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:57:39,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:57:39 BoogieIcfgContainer [2023-11-06 22:57:39,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:57:39,783 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:57:39,784 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:57:39,787 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:57:39,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:57:37" (1/3) ... [2023-11-06 22:57:39,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138e5052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:57:39, skipping insertion in model container [2023-11-06 22:57:39,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:57:38" (2/3) ... [2023-11-06 22:57:39,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138e5052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:57:39, skipping insertion in model container [2023-11-06 22:57:39,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:57:39" (3/3) ... [2023-11-06 22:57:39,790 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product11.cil.c [2023-11-06 22:57:39,810 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:57:39,810 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:57:39,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:57:39,893 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a317686, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:57:39,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:57:39,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 583 states, 449 states have (on average 1.6748329621380846) internal successors, (752), 467 states have internal predecessors, (752), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2023-11-06 22:57:39,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 22:57:39,959 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:39,961 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:57:39,961 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:57:39,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:39,967 INFO L85 PathProgramCache]: Analyzing trace with hash -766320480, now seen corresponding path program 1 times [2023-11-06 22:57:39,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:57:39,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114576956] [2023-11-06 22:57:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:39,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:57:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:41,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:57:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:41,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:57:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:41,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:57:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:41,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:57:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:41,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:57:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:57:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-06 22:57:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:57:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:42,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:57:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:42,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:57:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:42,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-06 22:57:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:42,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:57:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:42,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:57:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:42,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-06 22:57:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:42,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-06 22:57:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:57:42,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:57:42,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114576956] [2023-11-06 22:57:42,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114576956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:57:42,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:57:42,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:57:42,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281990225] [2023-11-06 22:57:42,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:57:42,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:57:42,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:57:42,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:57:42,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:57:42,188 INFO L87 Difference]: Start difference. First operand has 583 states, 449 states have (on average 1.6748329621380846) internal successors, (752), 467 states have internal predecessors, (752), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:57:53,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:57:53,216 INFO L93 Difference]: Finished difference Result 1520 states and 2624 transitions. [2023-11-06 22:57:53,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:57:53,223 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2023-11-06 22:57:53,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:57:53,250 INFO L225 Difference]: With dead ends: 1520 [2023-11-06 22:57:53,250 INFO L226 Difference]: Without dead ends: 937 [2023-11-06 22:57:53,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:57:53,272 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 1743 mSDsluCounter, 2764 mSDsCounter, 0 mSdLazyCounter, 5446 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 3266 SdHoareTripleChecker+Invalid, 5897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 5446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:57:53,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 3266 Invalid, 5897 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [451 Valid, 5446 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-11-06 22:57:53,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2023-11-06 22:57:53,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 586. [2023-11-06 22:57:53,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 452 states have (on average 1.665929203539823) internal successors, (753), 470 states have internal predecessors, (753), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2023-11-06 22:57:53,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 966 transitions. [2023-11-06 22:57:53,677 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 966 transitions. Word has length 113 [2023-11-06 22:57:53,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:57:53,679 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 966 transitions. [2023-11-06 22:57:53,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:57:53,680 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 966 transitions. [2023-11-06 22:57:53,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-06 22:57:53,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:53,699 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:57:53,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:57:53,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:57:53,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:53,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1891470132, now seen corresponding path program 1 times [2023-11-06 22:57:53,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:57:53,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964019805] [2023-11-06 22:57:53,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:53,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:57:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:57:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:57:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:57:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:57:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:57:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:57:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:57:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 22:57:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:57:54,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-06 22:57:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:57:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:57:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:57:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-06 22:57:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-06 22:57:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:57:54,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:57:54,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964019805] [2023-11-06 22:57:54,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964019805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:57:54,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:57:54,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:57:54,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666696002] [2023-11-06 22:57:54,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:57:54,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:57:54,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:57:54,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:57:54,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:57:54,627 INFO L87 Difference]: Start difference. First operand 586 states and 966 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:58:02,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:02,973 INFO L93 Difference]: Finished difference Result 1504 states and 2562 transitions. [2023-11-06 22:58:02,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:58:02,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2023-11-06 22:58:02,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:02,985 INFO L225 Difference]: With dead ends: 1504 [2023-11-06 22:58:02,985 INFO L226 Difference]: Without dead ends: 934 [2023-11-06 22:58:02,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:58:02,992 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 2204 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 2885 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2314 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 3509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 2885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:02,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2314 Valid, 1614 Invalid, 3509 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [624 Valid, 2885 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-06 22:58:02,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-11-06 22:58:03,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 586. [2023-11-06 22:58:03,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 452 states have (on average 1.663716814159292) internal successors, (752), 470 states have internal predecessors, (752), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2023-11-06 22:58:03,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 965 transitions. [2023-11-06 22:58:03,242 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 965 transitions. Word has length 114 [2023-11-06 22:58:03,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:03,243 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 965 transitions. [2023-11-06 22:58:03,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:58:03,243 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 965 transitions. [2023-11-06 22:58:03,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-06 22:58:03,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:03,249 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:03,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:58:03,250 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:03,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:03,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1416407114, now seen corresponding path program 1 times [2023-11-06 22:58:03,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:03,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464343287] [2023-11-06 22:58:03,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:03,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:58:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:58:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:58:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:58:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 22:58:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-06 22:58:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:58:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-06 22:58:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-06 22:58:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:03,947 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:58:03,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:03,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464343287] [2023-11-06 22:58:03,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464343287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:03,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:03,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:58:03,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442524579] [2023-11-06 22:58:03,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:03,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:58:03,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:03,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:58:03,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:03,952 INFO L87 Difference]: Start difference. First operand 586 states and 965 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:58:11,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:11,430 INFO L93 Difference]: Finished difference Result 1501 states and 2550 transitions. [2023-11-06 22:58:11,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:58:11,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2023-11-06 22:58:11,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:11,441 INFO L225 Difference]: With dead ends: 1501 [2023-11-06 22:58:11,441 INFO L226 Difference]: Without dead ends: 900 [2023-11-06 22:58:11,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:58:11,454 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 2141 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 2869 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2251 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 3503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 2869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:11,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2251 Valid, 1617 Invalid, 3503 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [634 Valid, 2869 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-06 22:58:11,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2023-11-06 22:58:11,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 562. [2023-11-06 22:58:11,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 431 states have (on average 1.654292343387471) internal successors, (713), 447 states have internal predecessors, (713), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-06 22:58:11,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 922 transitions. [2023-11-06 22:58:11,762 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 922 transitions. Word has length 114 [2023-11-06 22:58:11,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:11,763 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 922 transitions. [2023-11-06 22:58:11,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:58:11,764 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 922 transitions. [2023-11-06 22:58:11,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-06 22:58:11,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:11,768 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:11,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:58:11,770 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:11,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:11,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1301003116, now seen corresponding path program 1 times [2023-11-06 22:58:11,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:11,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53523905] [2023-11-06 22:58:11,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:11,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:58:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-06 22:58:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:58:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:58:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-06 22:58:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 22:58:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:58:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 22:58:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:12,682 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:58:12,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:12,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53523905] [2023-11-06 22:58:12,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53523905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:12,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:12,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:58:12,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236439859] [2023-11-06 22:58:12,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:12,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:58:12,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:12,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:58:12,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:58:12,687 INFO L87 Difference]: Start difference. First operand 562 states and 922 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:58:22,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:22,581 INFO L93 Difference]: Finished difference Result 1464 states and 2481 transitions. [2023-11-06 22:58:22,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:58:22,582 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2023-11-06 22:58:22,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:22,591 INFO L225 Difference]: With dead ends: 1464 [2023-11-06 22:58:22,591 INFO L226 Difference]: Without dead ends: 894 [2023-11-06 22:58:22,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:58:22,597 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 1149 mSDsluCounter, 2569 mSDsCounter, 0 mSdLazyCounter, 5403 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 5650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 5403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:22,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 3027 Invalid, 5650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [247 Valid, 5403 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-11-06 22:58:22,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2023-11-06 22:58:22,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 556. [2023-11-06 22:58:22,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 425 states have (on average 1.6470588235294117) internal successors, (700), 441 states have internal predecessors, (700), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-06 22:58:22,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 909 transitions. [2023-11-06 22:58:22,784 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 909 transitions. Word has length 115 [2023-11-06 22:58:22,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:22,785 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 909 transitions. [2023-11-06 22:58:22,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:58:22,785 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 909 transitions. [2023-11-06 22:58:22,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-06 22:58:22,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:22,790 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:22,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:58:22,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:22,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:22,791 INFO L85 PathProgramCache]: Analyzing trace with hash -792377252, now seen corresponding path program 1 times [2023-11-06 22:58:22,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:22,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644672330] [2023-11-06 22:58:22,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:22,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:58:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-06 22:58:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-06 22:58:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-06 22:58:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 22:58:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-06 22:58:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-06 22:58:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-06 22:58:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:58:23,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:23,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644672330] [2023-11-06 22:58:23,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644672330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:23,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:23,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:58:23,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646819931] [2023-11-06 22:58:23,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:23,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:58:23,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:23,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:58:23,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:23,648 INFO L87 Difference]: Start difference. First operand 556 states and 909 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:58:31,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:31,462 INFO L93 Difference]: Finished difference Result 1434 states and 2430 transitions. [2023-11-06 22:58:31,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:58:31,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2023-11-06 22:58:31,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:31,471 INFO L225 Difference]: With dead ends: 1434 [2023-11-06 22:58:31,471 INFO L226 Difference]: Without dead ends: 894 [2023-11-06 22:58:31,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:58:31,476 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 1572 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 2817 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 3253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 2817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:31,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 1675 Invalid, 3253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [436 Valid, 2817 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-06 22:58:31,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2023-11-06 22:58:31,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 556. [2023-11-06 22:58:31,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 425 states have (on average 1.6447058823529412) internal successors, (699), 441 states have internal predecessors, (699), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-06 22:58:31,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 908 transitions. [2023-11-06 22:58:31,700 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 908 transitions. Word has length 116 [2023-11-06 22:58:31,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:31,701 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 908 transitions. [2023-11-06 22:58:31,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:58:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 908 transitions. [2023-11-06 22:58:31,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-06 22:58:31,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:31,705 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:31,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:58:31,706 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:31,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:31,706 INFO L85 PathProgramCache]: Analyzing trace with hash -2045131063, now seen corresponding path program 1 times [2023-11-06 22:58:31,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:31,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568933156] [2023-11-06 22:58:31,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:31,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:58:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-06 22:58:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-06 22:58:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 22:58:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-06 22:58:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-06 22:58:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-06 22:58:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-06 22:58:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,495 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:58:32,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:32,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568933156] [2023-11-06 22:58:32,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568933156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:32,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:32,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:58:32,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174549003] [2023-11-06 22:58:32,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:32,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:58:32,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:32,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:58:32,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:58:32,498 INFO L87 Difference]: Start difference. First operand 556 states and 908 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:58:42,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:42,284 INFO L93 Difference]: Finished difference Result 1452 states and 2450 transitions. [2023-11-06 22:58:42,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:58:42,285 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2023-11-06 22:58:42,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:42,294 INFO L225 Difference]: With dead ends: 1452 [2023-11-06 22:58:42,294 INFO L226 Difference]: Without dead ends: 888 [2023-11-06 22:58:42,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:58:42,299 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 1099 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 5359 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 5600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 5359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:42,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 3136 Invalid, 5600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [241 Valid, 5359 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-11-06 22:58:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2023-11-06 22:58:42,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 550. [2023-11-06 22:58:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 419 states have (on average 1.6372315035799523) internal successors, (686), 435 states have internal predecessors, (686), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-06 22:58:42,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 895 transitions. [2023-11-06 22:58:42,478 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 895 transitions. Word has length 117 [2023-11-06 22:58:42,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:42,479 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 895 transitions. [2023-11-06 22:58:42,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:58:42,479 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 895 transitions. [2023-11-06 22:58:42,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-06 22:58:42,483 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:42,483 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:42,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:58:42,484 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:42,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:42,484 INFO L85 PathProgramCache]: Analyzing trace with hash -432305187, now seen corresponding path program 1 times [2023-11-06 22:58:42,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:42,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116210336] [2023-11-06 22:58:42,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:42,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:42,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:58:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-06 22:58:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 22:58:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-06 22:58:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:58:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 22:58:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-06 22:58:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:58:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:58:43,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:43,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116210336] [2023-11-06 22:58:43,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116210336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:43,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:43,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:58:43,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860608734] [2023-11-06 22:58:43,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:43,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:58:43,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:43,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:58:43,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:58:43,262 INFO L87 Difference]: Start difference. First operand 550 states and 895 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:58:51,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:58:51,015 INFO L93 Difference]: Finished difference Result 1422 states and 2401 transitions. [2023-11-06 22:58:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:58:51,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2023-11-06 22:58:51,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:58:51,030 INFO L225 Difference]: With dead ends: 1422 [2023-11-06 22:58:51,030 INFO L226 Difference]: Without dead ends: 888 [2023-11-06 22:58:51,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:58:51,038 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 1039 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 3081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:58:51,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 1727 Invalid, 3081 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [244 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-06 22:58:51,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2023-11-06 22:58:51,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 550. [2023-11-06 22:58:51,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 419 states have (on average 1.6348448687350836) internal successors, (685), 435 states have internal predecessors, (685), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-06 22:58:51,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 894 transitions. [2023-11-06 22:58:51,241 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 894 transitions. Word has length 118 [2023-11-06 22:58:51,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:58:51,241 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 894 transitions. [2023-11-06 22:58:51,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:58:51,242 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 894 transitions. [2023-11-06 22:58:51,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-06 22:58:51,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:58:51,246 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:51,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:58:51,246 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:58:51,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:51,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1224075539, now seen corresponding path program 1 times [2023-11-06 22:58:51,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:51,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688878009] [2023-11-06 22:58:51,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:51,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:51,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:51,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:58:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:51,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:51,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:58:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:52,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:58:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-06 22:58:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:52,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:58:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:52,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-06 22:58:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:52,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-06 22:58:52,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:52,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:52,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:58:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 22:58:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:52,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-06 22:58:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:52,046 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:58:52,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:52,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688878009] [2023-11-06 22:58:52,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688878009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:52,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:52,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:58:52,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794218181] [2023-11-06 22:58:52,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:52,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:58:52,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:52,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:58:52,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:58:52,050 INFO L87 Difference]: Start difference. First operand 550 states and 894 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:59:01,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:01,705 INFO L93 Difference]: Finished difference Result 1440 states and 2419 transitions. [2023-11-06 22:59:01,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:59:01,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2023-11-06 22:59:01,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:01,713 INFO L225 Difference]: With dead ends: 1440 [2023-11-06 22:59:01,713 INFO L226 Difference]: Without dead ends: 882 [2023-11-06 22:59:01,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:59:01,718 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 1088 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 5225 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 5472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 5225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:01,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 3067 Invalid, 5472 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [247 Valid, 5225 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-06 22:59:01,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-11-06 22:59:01,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 544. [2023-11-06 22:59:01,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 413 states have (on average 1.6271186440677967) internal successors, (672), 429 states have internal predecessors, (672), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-06 22:59:01,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 881 transitions. [2023-11-06 22:59:01,936 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 881 transitions. Word has length 119 [2023-11-06 22:59:01,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:01,936 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 881 transitions. [2023-11-06 22:59:01,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:59:01,937 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 881 transitions. [2023-11-06 22:59:01,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-06 22:59:01,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:01,941 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:01,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:59:01,941 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:01,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:01,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1365363252, now seen corresponding path program 1 times [2023-11-06 22:59:01,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:01,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490122924] [2023-11-06 22:59:01,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:01,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:59:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-06 22:59:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:59:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-06 22:59:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-06 22:59:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 22:59:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-06 22:59:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:59:02,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:02,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490122924] [2023-11-06 22:59:02,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490122924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:02,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:02,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:59:02,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984721201] [2023-11-06 22:59:02,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:02,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:59:02,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:02,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:59:02,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:02,635 INFO L87 Difference]: Start difference. First operand 544 states and 881 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:59:10,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:10,481 INFO L93 Difference]: Finished difference Result 1410 states and 2372 transitions. [2023-11-06 22:59:10,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:59:10,482 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2023-11-06 22:59:10,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:10,489 INFO L225 Difference]: With dead ends: 1410 [2023-11-06 22:59:10,489 INFO L226 Difference]: Without dead ends: 882 [2023-11-06 22:59:10,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:59:10,493 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 1014 mSDsluCounter, 1281 mSDsCounter, 0 mSdLazyCounter, 2803 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 3044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 2803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:10,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 1764 Invalid, 3044 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [241 Valid, 2803 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-06 22:59:10,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-11-06 22:59:10,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 544. [2023-11-06 22:59:10,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 413 states have (on average 1.6246973365617434) internal successors, (671), 429 states have internal predecessors, (671), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-06 22:59:10,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 880 transitions. [2023-11-06 22:59:10,723 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 880 transitions. Word has length 119 [2023-11-06 22:59:10,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:10,724 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 880 transitions. [2023-11-06 22:59:10,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:59:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 880 transitions. [2023-11-06 22:59:10,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-06 22:59:10,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:10,728 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:10,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:59:10,728 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:10,729 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:10,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1835348381, now seen corresponding path program 1 times [2023-11-06 22:59:10,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:10,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149286162] [2023-11-06 22:59:10,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:10,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:59:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:59:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-06 22:59:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-06 22:59:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:59:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-06 22:59:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-06 22:59:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:59:11,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:11,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149286162] [2023-11-06 22:59:11,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149286162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:11,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:11,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:59:11,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426142170] [2023-11-06 22:59:11,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:11,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:59:11,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:11,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:59:11,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:11,412 INFO L87 Difference]: Start difference. First operand 544 states and 880 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:59:19,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:19,388 INFO L93 Difference]: Finished difference Result 1420 states and 2380 transitions. [2023-11-06 22:59:19,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:59:19,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2023-11-06 22:59:19,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:19,395 INFO L225 Difference]: With dead ends: 1420 [2023-11-06 22:59:19,395 INFO L226 Difference]: Without dead ends: 892 [2023-11-06 22:59:19,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:59:19,398 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 1005 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 2809 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 3055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 2809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:19,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1715 Invalid, 3055 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [246 Valid, 2809 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-06 22:59:19,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2023-11-06 22:59:19,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 550. [2023-11-06 22:59:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 419 states have (on average 1.6157517899761336) internal successors, (677), 435 states have internal predecessors, (677), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-06 22:59:19,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 886 transitions. [2023-11-06 22:59:19,640 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 886 transitions. Word has length 120 [2023-11-06 22:59:19,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:19,640 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 886 transitions. [2023-11-06 22:59:19,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:59:19,641 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 886 transitions. [2023-11-06 22:59:19,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-06 22:59:19,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:19,644 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:19,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:59:19,645 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:19,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:19,645 INFO L85 PathProgramCache]: Analyzing trace with hash 41134437, now seen corresponding path program 1 times [2023-11-06 22:59:19,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:19,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315071611] [2023-11-06 22:59:19,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:19,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:59:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:59:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-06 22:59:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-06 22:59:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-06 22:59:20,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-06 22:59:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-06 22:59:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:20,383 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:59:20,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:20,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315071611] [2023-11-06 22:59:20,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315071611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:20,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:20,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:59:20,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853301056] [2023-11-06 22:59:20,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:20,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:59:20,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:20,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:59:20,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:59:20,387 INFO L87 Difference]: Start difference. First operand 550 states and 886 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:59:29,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:29,915 INFO L93 Difference]: Finished difference Result 1425 states and 2383 transitions. [2023-11-06 22:59:29,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:59:29,916 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2023-11-06 22:59:29,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:29,922 INFO L225 Difference]: With dead ends: 1425 [2023-11-06 22:59:29,922 INFO L226 Difference]: Without dead ends: 882 [2023-11-06 22:59:29,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:59:29,926 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 1009 mSDsluCounter, 2762 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 3256 SdHoareTripleChecker+Invalid, 5370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:29,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 3256 Invalid, 5370 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [241 Valid, 5129 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-11-06 22:59:29,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-11-06 22:59:30,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 544. [2023-11-06 22:59:30,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 413 states have (on average 1.6222760290556901) internal successors, (670), 429 states have internal predecessors, (670), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2023-11-06 22:59:30,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 879 transitions. [2023-11-06 22:59:30,183 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 879 transitions. Word has length 120 [2023-11-06 22:59:30,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:30,183 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 879 transitions. [2023-11-06 22:59:30,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:59:30,184 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 879 transitions. [2023-11-06 22:59:30,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-06 22:59:30,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:30,188 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:30,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:59:30,189 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:30,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:30,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1870364402, now seen corresponding path program 1 times [2023-11-06 22:59:30,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:30,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259097082] [2023-11-06 22:59:30,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:30,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:59:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-06 22:59:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:59:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:59:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-06 22:59:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:59:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 22:59:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 22:59:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:30,992 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-06 22:59:30,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:30,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259097082] [2023-11-06 22:59:30,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259097082] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:30,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991926320] [2023-11-06 22:59:30,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:30,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:30,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:31,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:31,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:59:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:31,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 1633 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:59:31,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:31,519 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-06 22:59:31,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:31,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991926320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:31,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:59:31,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-06 22:59:31,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067121731] [2023-11-06 22:59:31,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:31,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:59:31,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:31,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:59:31,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:59:31,522 INFO L87 Difference]: Start difference. First operand 544 states and 879 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:59:32,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:32,001 INFO L93 Difference]: Finished difference Result 1543 states and 2525 transitions. [2023-11-06 22:59:32,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:59:32,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2023-11-06 22:59:32,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:32,009 INFO L225 Difference]: With dead ends: 1543 [2023-11-06 22:59:32,010 INFO L226 Difference]: Without dead ends: 1017 [2023-11-06 22:59:32,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:59:32,014 INFO L413 NwaCegarLoop]: 1560 mSDtfsCounter, 803 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 2334 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 [2023-11-06 22:59:32,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 2334 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:32,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2023-11-06 22:59:32,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 1002. [2023-11-06 22:59:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 768 states have (on average 1.6354166666666667) internal successors, (1256), 799 states have internal predecessors, (1256), 187 states have call successors, (187), 47 states have call predecessors, (187), 46 states have return successors, (189), 181 states have call predecessors, (189), 184 states have call successors, (189) [2023-11-06 22:59:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1632 transitions. [2023-11-06 22:59:32,590 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1632 transitions. Word has length 121 [2023-11-06 22:59:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:32,591 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 1632 transitions. [2023-11-06 22:59:32,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:59:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1632 transitions. [2023-11-06 22:59:32,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-06 22:59:32,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:32,596 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:32,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:32,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 22:59:32,804 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:32,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:32,804 INFO L85 PathProgramCache]: Analyzing trace with hash -803963021, now seen corresponding path program 1 times [2023-11-06 22:59:32,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:32,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72900903] [2023-11-06 22:59:32,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:32,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:59:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-06 22:59:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:59:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:59:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-06 22:59:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:59:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-06 22:59:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-06 22:59:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-06 22:59:33,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:33,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72900903] [2023-11-06 22:59:33,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72900903] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:33,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062179013] [2023-11-06 22:59:33,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:33,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:59:33,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:33,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:59:33,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:59:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:59:33,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-06 22:59:34,107 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:34,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062179013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:34,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:59:34,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-06 22:59:34,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412226626] [2023-11-06 22:59:34,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:34,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:59:34,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:34,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:59:34,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:59:34,110 INFO L87 Difference]: Start difference. First operand 1002 states and 1632 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:59:34,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:34,836 INFO L93 Difference]: Finished difference Result 2459 states and 4033 transitions. [2023-11-06 22:59:34,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:59:34,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2023-11-06 22:59:34,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:34,847 INFO L225 Difference]: With dead ends: 2459 [2023-11-06 22:59:34,848 INFO L226 Difference]: Without dead ends: 1475 [2023-11-06 22:59:34,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:59:34,854 INFO L413 NwaCegarLoop]: 1493 mSDtfsCounter, 804 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 2266 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 [2023-11-06 22:59:34,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 2266 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:34,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2023-11-06 22:59:35,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1427. [2023-11-06 22:59:35,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1096 states have (on average 1.647810218978102) internal successors, (1806), 1142 states have internal predecessors, (1806), 265 states have call successors, (265), 65 states have call predecessors, (265), 65 states have return successors, (272), 258 states have call predecessors, (272), 262 states have call successors, (272) [2023-11-06 22:59:35,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 2343 transitions. [2023-11-06 22:59:35,559 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 2343 transitions. Word has length 122 [2023-11-06 22:59:35,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:35,560 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 2343 transitions. [2023-11-06 22:59:35,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:59:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 2343 transitions. [2023-11-06 22:59:35,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-06 22:59:35,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:35,566 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:35,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-06 22:59:35,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:59:35,774 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:35,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:35,774 INFO L85 PathProgramCache]: Analyzing trace with hash -924596983, now seen corresponding path program 1 times [2023-11-06 22:59:35,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:35,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481108087] [2023-11-06 22:59:35,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:35,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:59:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-06 22:59:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:59:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-06 22:59:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:59:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 22:59:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-06 22:59:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 22:59:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:59:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,515 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:59:36,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:36,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481108087] [2023-11-06 22:59:36,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481108087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:36,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:36,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:59:36,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660330765] [2023-11-06 22:59:36,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:36,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:59:36,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:36,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:59:36,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:59:36,520 INFO L87 Difference]: Start difference. First operand 1427 states and 2343 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-06 22:59:53,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:53,507 INFO L93 Difference]: Finished difference Result 5883 states and 10382 transitions. [2023-11-06 22:59:53,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-06 22:59:53,508 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2023-11-06 22:59:53,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:53,562 INFO L225 Difference]: With dead ends: 5883 [2023-11-06 22:59:53,562 INFO L226 Difference]: Without dead ends: 4474 [2023-11-06 22:59:53,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2023-11-06 22:59:53,574 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 3635 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 4885 mSolverCounterSat, 1217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3752 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 6102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1217 IncrementalHoareTripleChecker+Valid, 4885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:53,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3752 Valid, 2530 Invalid, 6102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1217 Valid, 4885 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2023-11-06 22:59:53,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2023-11-06 22:59:55,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 3421. [2023-11-06 22:59:55,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 2493 states have (on average 1.6257521058965103) internal successors, (4053), 2677 states have internal predecessors, (4053), 765 states have call successors, (765), 124 states have call predecessors, (765), 162 states have return successors, (1225), 763 states have call predecessors, (1225), 761 states have call successors, (1225) [2023-11-06 22:59:55,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 6043 transitions. [2023-11-06 22:59:55,513 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 6043 transitions. Word has length 124 [2023-11-06 22:59:55,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:55,513 INFO L495 AbstractCegarLoop]: Abstraction has 3421 states and 6043 transitions. [2023-11-06 22:59:55,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-06 22:59:55,514 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 6043 transitions. [2023-11-06 22:59:55,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-06 22:59:55,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:55,522 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:55,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:59:55,522 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:55,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:55,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1448309410, now seen corresponding path program 1 times [2023-11-06 22:59:55,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:55,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369680548] [2023-11-06 22:59:55,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:55,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 22:59:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:59:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-06 22:59:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:59:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-06 22:59:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:59:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-06 22:59:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-06 22:59:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-06 22:59:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-06 22:59:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:56,141 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-06 22:59:56,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:56,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369680548] [2023-11-06 22:59:56,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369680548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:56,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:56,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:59:56,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140349939] [2023-11-06 22:59:56,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:56,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:59:56,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:56,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:59:56,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:56,144 INFO L87 Difference]: Start difference. First operand 3421 states and 6043 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 23:00:06,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:00:06,015 INFO L93 Difference]: Finished difference Result 7818 states and 14093 transitions. [2023-11-06 23:00:06,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 23:00:06,016 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 125 [2023-11-06 23:00:06,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:00:06,057 INFO L225 Difference]: With dead ends: 7818 [2023-11-06 23:00:06,057 INFO L226 Difference]: Without dead ends: 4415 [2023-11-06 23:00:06,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-11-06 23:00:06,098 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 1484 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 2836 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 3246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 2836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:00:06,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 1676 Invalid, 3246 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [410 Valid, 2836 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-06 23:00:06,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4415 states. [2023-11-06 23:00:08,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4415 to 3425. [2023-11-06 23:00:08,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3425 states, 2496 states have (on average 1.624599358974359) internal successors, (4055), 2680 states have internal predecessors, (4055), 765 states have call successors, (765), 126 states have call predecessors, (765), 163 states have return successors, (1216), 762 states have call predecessors, (1216), 761 states have call successors, (1216) [2023-11-06 23:00:08,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3425 states to 3425 states and 6036 transitions. [2023-11-06 23:00:08,072 INFO L78 Accepts]: Start accepts. Automaton has 3425 states and 6036 transitions. Word has length 125 [2023-11-06 23:00:08,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:00:08,072 INFO L495 AbstractCegarLoop]: Abstraction has 3425 states and 6036 transitions. [2023-11-06 23:00:08,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 23:00:08,073 INFO L276 IsEmpty]: Start isEmpty. Operand 3425 states and 6036 transitions. [2023-11-06 23:00:08,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-06 23:00:08,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:00:08,080 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:08,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 23:00:08,080 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:00:08,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:08,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2019108400, now seen corresponding path program 1 times [2023-11-06 23:00:08,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:08,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729793742] [2023-11-06 23:00:08,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:08,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 23:00:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 23:00:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 23:00:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-06 23:00:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 23:00:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-06 23:00:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 23:00:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:00:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-06 23:00:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-06 23:00:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-06 23:00:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,905 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-06 23:00:08,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:08,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729793742] [2023-11-06 23:00:08,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729793742] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:00:08,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910745186] [2023-11-06 23:00:08,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:08,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:00:08,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:00:08,907 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:00:08,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 23:00:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:09,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 1653 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:00:09,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:00:09,431 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-06 23:00:09,431 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:00:09,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910745186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:09,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:00:09,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-06 23:00:09,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884864125] [2023-11-06 23:00:09,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:09,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:00:09,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:09,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:00:09,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:00:09,435 INFO L87 Difference]: Start difference. First operand 3425 states and 6036 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-06 23:00:12,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:00:12,964 INFO L93 Difference]: Finished difference Result 9985 states and 17801 transitions. [2023-11-06 23:00:12,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:00:12,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2023-11-06 23:00:12,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:00:13,024 INFO L225 Difference]: With dead ends: 9985 [2023-11-06 23:00:13,024 INFO L226 Difference]: Without dead ends: 6579 [2023-11-06 23:00:13,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:00:13,055 INFO L413 NwaCegarLoop]: 901 mSDtfsCounter, 713 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:00:13,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 1685 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:00:13,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6579 states. [2023-11-06 23:00:16,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6579 to 6542. [2023-11-06 23:00:16,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6542 states, 4742 states have (on average 1.5959510754955715) internal successors, (7568), 5108 states have internal predecessors, (7568), 1478 states have call successors, (1478), 246 states have call predecessors, (1478), 321 states have return successors, (2471), 1475 states have call predecessors, (2471), 1472 states have call successors, (2471) [2023-11-06 23:00:16,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6542 states to 6542 states and 11517 transitions. [2023-11-06 23:00:16,703 INFO L78 Accepts]: Start accepts. Automaton has 6542 states and 11517 transitions. Word has length 125 [2023-11-06 23:00:16,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:00:16,703 INFO L495 AbstractCegarLoop]: Abstraction has 6542 states and 11517 transitions. [2023-11-06 23:00:16,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-06 23:00:16,704 INFO L276 IsEmpty]: Start isEmpty. Operand 6542 states and 11517 transitions. [2023-11-06 23:00:16,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-06 23:00:16,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:00:16,711 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:16,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:00:16,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-06 23:00:16,919 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:00:16,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:16,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1482838830, now seen corresponding path program 1 times [2023-11-06 23:00:16,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:16,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953037659] [2023-11-06 23:00:16,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:16,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 23:00:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 23:00:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 23:00:17,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-06 23:00:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 23:00:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-06 23:00:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 23:00:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:00:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-06 23:00:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 23:00:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-06 23:00:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-06 23:00:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-06 23:00:17,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:17,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953037659] [2023-11-06 23:00:17,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953037659] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:00:17,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706479075] [2023-11-06 23:00:17,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:17,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:00:17,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:00:17,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:00:17,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 23:00:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:18,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:00:18,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:00:18,117 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-06 23:00:18,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:00:18,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706479075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:18,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:00:18,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-06 23:00:18,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600072650] [2023-11-06 23:00:18,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:18,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:00:18,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:18,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:00:18,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:00:18,120 INFO L87 Difference]: Start difference. First operand 6542 states and 11517 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-06 23:00:25,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:00:25,099 INFO L93 Difference]: Finished difference Result 19512 states and 34660 transitions. [2023-11-06 23:00:25,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:00:25,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2023-11-06 23:00:25,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:00:25,193 INFO L225 Difference]: With dead ends: 19512 [2023-11-06 23:00:25,193 INFO L226 Difference]: Without dead ends: 12991 [2023-11-06 23:00:25,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:00:25,233 INFO L413 NwaCegarLoop]: 887 mSDtfsCounter, 864 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:00:25,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 1742 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:00:25,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12991 states. [2023-11-06 23:00:32,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12991 to 12888. [2023-11-06 23:00:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12888 states, 9360 states have (on average 1.5986111111111112) internal successors, (14963), 10072 states have internal predecessors, (14963), 2896 states have call successors, (2896), 474 states have call predecessors, (2896), 631 states have return successors, (4924), 2911 states have call predecessors, (4924), 2886 states have call successors, (4924) [2023-11-06 23:00:32,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12888 states to 12888 states and 22783 transitions. [2023-11-06 23:00:32,523 INFO L78 Accepts]: Start accepts. Automaton has 12888 states and 22783 transitions. Word has length 127 [2023-11-06 23:00:32,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:00:32,524 INFO L495 AbstractCegarLoop]: Abstraction has 12888 states and 22783 transitions. [2023-11-06 23:00:32,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-06 23:00:32,525 INFO L276 IsEmpty]: Start isEmpty. Operand 12888 states and 22783 transitions. [2023-11-06 23:00:32,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-06 23:00:32,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:00:32,532 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:32,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 23:00:32,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-06 23:00:32,739 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:00:32,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:32,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1801011216, now seen corresponding path program 1 times [2023-11-06 23:00:32,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:32,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994830273] [2023-11-06 23:00:32,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:32,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 23:00:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 23:00:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 23:00:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-06 23:00:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 23:00:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-06 23:00:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 23:00:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-06 23:00:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-06 23:00:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 23:00:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-06 23:00:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-06 23:00:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,495 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-06 23:00:33,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:33,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994830273] [2023-11-06 23:00:33,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994830273] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:00:33,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968554107] [2023-11-06 23:00:33,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:33,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:00:33,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:00:33,497 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:00:33,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 23:00:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:33,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 23:00:33,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:00:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-06 23:00:34,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:00:34,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968554107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:34,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 23:00:34,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-11-06 23:00:34,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344010612] [2023-11-06 23:00:34,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:34,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:00:34,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:34,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:00:34,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-06 23:00:34,013 INFO L87 Difference]: Start difference. First operand 12888 states and 22783 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-06 23:00:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:00:41,779 INFO L93 Difference]: Finished difference Result 24211 states and 42855 transitions. [2023-11-06 23:00:41,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:00:41,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 127 [2023-11-06 23:00:41,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:00:41,858 INFO L225 Difference]: With dead ends: 24211 [2023-11-06 23:00:41,858 INFO L226 Difference]: Without dead ends: 11341 [2023-11-06 23:00:41,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-06 23:00:41,933 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 744 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 4022 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:00:41,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 4022 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 23:00:41,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11341 states. [2023-11-06 23:00:48,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11341 to 11319. [2023-11-06 23:00:48,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11319 states, 8263 states have (on average 1.5879220622050103) internal successors, (13121), 8858 states have internal predecessors, (13121), 2490 states have call successors, (2490), 434 states have call predecessors, (2490), 565 states have return successors, (4182), 2502 states have call predecessors, (4182), 2480 states have call successors, (4182) [2023-11-06 23:00:48,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11319 states to 11319 states and 19793 transitions. [2023-11-06 23:00:48,467 INFO L78 Accepts]: Start accepts. Automaton has 11319 states and 19793 transitions. Word has length 127 [2023-11-06 23:00:48,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:00:48,467 INFO L495 AbstractCegarLoop]: Abstraction has 11319 states and 19793 transitions. [2023-11-06 23:00:48,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-06 23:00:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 11319 states and 19793 transitions. [2023-11-06 23:00:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-06 23:00:48,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:00:48,473 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:48,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 23:00:48,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d744daf9-113a-4437-ad93-8e74b7951d98/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-06 23:00:48,680 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:00:48,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:48,680 INFO L85 PathProgramCache]: Analyzing trace with hash 200153444, now seen corresponding path program 1 times [2023-11-06 23:00:48,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:48,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45268768] [2023-11-06 23:00:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:48,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 23:00:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-06 23:00:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 23:00:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-06 23:00:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 23:00:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-06 23:00:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 23:00:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-06 23:00:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-06 23:00:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-06 23:00:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-06 23:00:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-06 23:00:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-06 23:00:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,419 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-06 23:00:49,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:49,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45268768] [2023-11-06 23:00:49,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45268768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:49,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:49,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 23:00:49,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048961174] [2023-11-06 23:00:49,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:49,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 23:00:49,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:49,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 23:00:49,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-06 23:00:49,578 INFO L87 Difference]: Start difference. First operand 11319 states and 19793 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17)