./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb3dce9b114483214f320874a7aac06c61be45c777f03f63c22a8ddab1e62ece --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:45:54,346 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:45:54,419 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:45:54,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:45:54,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:45:54,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:45:54,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:45:54,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:45:54,448 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:45:54,451 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:45:54,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:45:54,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:45:54,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:45:54,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:45:54,452 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:45:54,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:45:54,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:45:54,453 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:45:54,453 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:45:54,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:45:54,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:45:54,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:45:54,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:45:54,455 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:45:54,455 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:45:54,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:45:54,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:45:54,456 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:45:54,456 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:45:54,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:45:54,456 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:45:54,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:45:54,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:45:54,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:45:54,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:45:54,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:45:54,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:45:54,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:45:54,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:45:54,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:45:54,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:45:54,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:45:54,459 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb3dce9b114483214f320874a7aac06c61be45c777f03f63c22a8ddab1e62ece [2024-11-08 14:45:54,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:45:54,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:45:54,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:45:54,781 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:45:54,781 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:45:54,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c [2024-11-08 14:45:56,174 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:45:56,478 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:45:56,479 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c [2024-11-08 14:45:56,505 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b81b6b0c1/5b8771091c404e06b764d2afdae34cca/FLAG2a8ca1fb1 [2024-11-08 14:45:56,518 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b81b6b0c1/5b8771091c404e06b764d2afdae34cca [2024-11-08 14:45:56,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:45:56,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:45:56,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:45:56,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:45:56,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:45:56,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:45:56" (1/1) ... [2024-11-08 14:45:56,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aa3eb37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:56, skipping insertion in model container [2024-11-08 14:45:56,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:45:56" (1/1) ... [2024-11-08 14:45:56,577 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:45:56,885 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c[58922,58935] [2024-11-08 14:45:56,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:45:56,936 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:45:56,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-11-08 14:45:56,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [716] [2024-11-08 14:45:56,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [754] [2024-11-08 14:45:56,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [875] [2024-11-08 14:45:56,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1230] [2024-11-08 14:45:56,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2746] [2024-11-08 14:45:56,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2837] [2024-11-08 14:45:56,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2846] [2024-11-08 14:45:56,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [2861] [2024-11-08 14:45:56,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2950] [2024-11-08 14:45:57,015 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c[58922,58935] [2024-11-08 14:45:57,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:45:57,055 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:45:57,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57 WrapperNode [2024-11-08 14:45:57,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:45:57,056 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:45:57,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:45:57,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:45:57,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,136 INFO L138 Inliner]: procedures = 90, calls = 338, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 817 [2024-11-08 14:45:57,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:45:57,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:45:57,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:45:57,137 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:45:57,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,150 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,180 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-08 14:45:57,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:45:57,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:45:57,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:45:57,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:45:57,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (1/1) ... [2024-11-08 14:45:57,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:45:57,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:45:57,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 14:45:57,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 14:45:57,314 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-11-08 14:45:57,314 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-11-08 14:45:57,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:45:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-11-08 14:45:57,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-11-08 14:45:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-08 14:45:57,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-08 14:45:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2024-11-08 14:45:57,315 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2024-11-08 14:45:57,315 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-08 14:45:57,316 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-08 14:45:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-08 14:45:57,316 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-08 14:45:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-08 14:45:57,316 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-08 14:45:57,317 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-08 14:45:57,317 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-08 14:45:57,317 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 14:45:57,317 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 14:45:57,318 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 14:45:57,318 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 14:45:57,318 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-08 14:45:57,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-08 14:45:57,318 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-08 14:45:57,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-08 14:45:57,319 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-08 14:45:57,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-08 14:45:57,319 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-08 14:45:57,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-08 14:45:57,319 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-08 14:45:57,319 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-08 14:45:57,319 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-08 14:45:57,319 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-08 14:45:57,319 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-08 14:45:57,320 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-08 14:45:57,320 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-08 14:45:57,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-08 14:45:57,320 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-08 14:45:57,320 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-08 14:45:57,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:45:57,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 14:45:57,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 14:45:57,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 14:45:57,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 14:45:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 14:45:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 14:45:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 14:45:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 14:45:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 14:45:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-08 14:45:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-08 14:45:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-08 14:45:57,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-08 14:45:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-08 14:45:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-08 14:45:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-08 14:45:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-08 14:45:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-08 14:45:57,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-08 14:45:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-08 14:45:57,323 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-08 14:45:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-08 14:45:57,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-08 14:45:57,323 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-08 14:45:57,323 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-08 14:45:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-08 14:45:57,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-08 14:45:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-08 14:45:57,324 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-08 14:45:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:45:57,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:45:57,324 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-08 14:45:57,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-08 14:45:57,481 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:45:57,483 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:45:58,462 INFO L? ?]: Removed 460 outVars from TransFormulas that were not future-live. [2024-11-08 14:45:58,463 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:45:58,482 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:45:58,483 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-08 14:45:58,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:45:58 BoogieIcfgContainer [2024-11-08 14:45:58,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:45:58,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:45:58,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:45:58,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:45:58,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:45:56" (1/3) ... [2024-11-08 14:45:58,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312c5d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:45:58, skipping insertion in model container [2024-11-08 14:45:58,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:45:57" (2/3) ... [2024-11-08 14:45:58,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312c5d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:45:58, skipping insertion in model container [2024-11-08 14:45:58,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:45:58" (3/3) ... [2024-11-08 14:45:58,490 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product21.cil.c [2024-11-08 14:45:58,502 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:45:58,503 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:45:58,569 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:45:58,573 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60d8ae6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:45:58,573 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:45:58,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 592 states, 465 states have (on average 1.6924731182795698) internal successors, (787), 483 states have internal predecessors, (787), 100 states have call successors, (100), 25 states have call predecessors, (100), 25 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-08 14:45:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 14:45:58,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:45:58,602 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2024-11-08 14:45:58,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:45:58,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:45:58,606 INFO L85 PathProgramCache]: Analyzing trace with hash -525274672, now seen corresponding path program 1 times [2024-11-08 14:45:58,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:45:58,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538624105] [2024-11-08 14:45:58,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:45:58,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:45:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:45:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:45:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 14:45:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:45:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:45:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:45:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 14:45:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:45:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:45:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 14:45:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 14:45:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 14:45:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 14:45:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:45:59,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:45:59,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538624105] [2024-11-08 14:45:59,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538624105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:45:59,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554088823] [2024-11-08 14:45:59,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:45:59,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:45:59,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:45:59,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:45:59,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 14:45:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:45:59,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 14:45:59,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:45:59,647 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 14:45:59,648 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:45:59,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554088823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:45:59,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:45:59,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2024-11-08 14:45:59,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840197847] [2024-11-08 14:45:59,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:45:59,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 14:45:59,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:45:59,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 14:45:59,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:45:59,679 INFO L87 Difference]: Start difference. First operand has 592 states, 465 states have (on average 1.6924731182795698) internal successors, (787), 483 states have internal predecessors, (787), 100 states have call successors, (100), 25 states have call predecessors, (100), 25 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:45:59,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:45:59,749 INFO L93 Difference]: Finished difference Result 1162 states and 1957 transitions. [2024-11-08 14:45:59,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 14:45:59,754 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2024-11-08 14:45:59,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:45:59,773 INFO L225 Difference]: With dead ends: 1162 [2024-11-08 14:45:59,774 INFO L226 Difference]: Without dead ends: 582 [2024-11-08 14:45:59,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:45:59,788 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:45:59,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:45:59,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-08 14:45:59,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2024-11-08 14:45:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 458 states have (on average 1.6746724890829694) internal successors, (767), 474 states have internal predecessors, (767), 100 states have call successors, (100), 25 states have call predecessors, (100), 23 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-08 14:45:59,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 964 transitions. [2024-11-08 14:45:59,886 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 964 transitions. Word has length 114 [2024-11-08 14:45:59,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:45:59,888 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 964 transitions. [2024-11-08 14:45:59,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:45:59,890 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 964 transitions. [2024-11-08 14:45:59,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 14:45:59,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:45:59,899 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2024-11-08 14:45:59,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 14:46:00,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-08 14:46:00,100 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:00,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:00,102 INFO L85 PathProgramCache]: Analyzing trace with hash 281689968, now seen corresponding path program 1 times [2024-11-08 14:46:00,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:00,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372606945] [2024-11-08 14:46:00,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:00,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:46:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 14:46:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:46:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 14:46:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:46:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 14:46:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 14:46:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 14:46:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 14:46:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,673 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:46:00,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:00,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372606945] [2024-11-08 14:46:00,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372606945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:00,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149845943] [2024-11-08 14:46:00,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:00,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:00,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:00,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:00,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 14:46:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:00,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:46:00,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:00,992 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:46:00,993 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:00,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149845943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:00,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:00,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-08 14:46:00,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590246035] [2024-11-08 14:46:00,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:00,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 14:46:00,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:00,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 14:46:00,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:46:00,995 INFO L87 Difference]: Start difference. First operand 582 states and 964 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:01,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:01,075 INFO L93 Difference]: Finished difference Result 1701 states and 2863 transitions. [2024-11-08 14:46:01,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 14:46:01,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2024-11-08 14:46:01,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:01,083 INFO L225 Difference]: With dead ends: 1701 [2024-11-08 14:46:01,083 INFO L226 Difference]: Without dead ends: 1139 [2024-11-08 14:46:01,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:46:01,086 INFO L432 NwaCegarLoop]: 979 mSDtfsCounter, 960 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:01,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 1905 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:46:01,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2024-11-08 14:46:01,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1130. [2024-11-08 14:46:01,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 896 states have (on average 1.6852678571428572) internal successors, (1510), 925 states have internal predecessors, (1510), 188 states have call successors, (188), 47 states have call predecessors, (188), 45 states have return successors, (196), 183 states have call predecessors, (196), 184 states have call successors, (196) [2024-11-08 14:46:01,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1894 transitions. [2024-11-08 14:46:01,187 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1894 transitions. Word has length 114 [2024-11-08 14:46:01,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:01,187 INFO L471 AbstractCegarLoop]: Abstraction has 1130 states and 1894 transitions. [2024-11-08 14:46:01,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:01,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1894 transitions. [2024-11-08 14:46:01,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 14:46:01,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:01,196 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2024-11-08 14:46:01,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 14:46:01,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-08 14:46:01,397 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:01,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:01,397 INFO L85 PathProgramCache]: Analyzing trace with hash 6930354, now seen corresponding path program 1 times [2024-11-08 14:46:01,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:01,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184621035] [2024-11-08 14:46:01,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:01,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:46:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 14:46:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:46:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 14:46:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:46:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 14:46:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 14:46:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 14:46:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 14:46:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:01,826 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:46:01,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:01,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184621035] [2024-11-08 14:46:01,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184621035] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:01,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321804776] [2024-11-08 14:46:01,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:01,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:01,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:01,829 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:01,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 14:46:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:02,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 1377 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:46:02,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:02,092 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 14:46:02,093 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:02,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321804776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:02,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:02,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-08 14:46:02,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225724313] [2024-11-08 14:46:02,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:02,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:46:02,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:02,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:46:02,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:46:02,095 INFO L87 Difference]: Start difference. First operand 1130 states and 1894 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:02,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:02,186 INFO L93 Difference]: Finished difference Result 2261 states and 3796 transitions. [2024-11-08 14:46:02,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:46:02,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2024-11-08 14:46:02,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:02,192 INFO L225 Difference]: With dead ends: 2261 [2024-11-08 14:46:02,192 INFO L226 Difference]: Without dead ends: 1139 [2024-11-08 14:46:02,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:46:02,197 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 17 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:02,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2845 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:46:02,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2024-11-08 14:46:02,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1139. [2024-11-08 14:46:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 904 states have (on average 1.6858407079646018) internal successors, (1524), 933 states have internal predecessors, (1524), 188 states have call successors, (188), 48 states have call predecessors, (188), 46 states have return successors, (196), 183 states have call predecessors, (196), 184 states have call successors, (196) [2024-11-08 14:46:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1908 transitions. [2024-11-08 14:46:02,260 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1908 transitions. Word has length 114 [2024-11-08 14:46:02,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:02,260 INFO L471 AbstractCegarLoop]: Abstraction has 1139 states and 1908 transitions. [2024-11-08 14:46:02,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:02,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1908 transitions. [2024-11-08 14:46:02,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 14:46:02,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:02,263 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:02,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 14:46:02,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:02,464 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:02,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:02,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2024156388, now seen corresponding path program 1 times [2024-11-08 14:46:02,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:02,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884430884] [2024-11-08 14:46:02,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:02,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:02,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:02,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 14:46:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:46:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 14:46:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 14:46:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:46:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 14:46:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 14:46:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 14:46:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 14:46:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,171 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:46:03,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:03,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884430884] [2024-11-08 14:46:03,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884430884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:03,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804804012] [2024-11-08 14:46:03,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:03,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:03,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:03,174 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:03,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 14:46:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:46:03,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:03,422 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:46:03,422 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:03,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804804012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:03,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:03,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2024-11-08 14:46:03,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840923994] [2024-11-08 14:46:03,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:03,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:46:03,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:03,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:46:03,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:46:03,424 INFO L87 Difference]: Start difference. First operand 1139 states and 1908 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:03,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:03,627 INFO L93 Difference]: Finished difference Result 2340 states and 3934 transitions. [2024-11-08 14:46:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:46:03,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-11-08 14:46:03,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:03,663 INFO L225 Difference]: With dead ends: 2340 [2024-11-08 14:46:03,664 INFO L226 Difference]: Without dead ends: 1211 [2024-11-08 14:46:03,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:46:03,668 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 122 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:03,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2740 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 14:46:03,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-08 14:46:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1184. [2024-11-08 14:46:03,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 948 states have (on average 1.6962025316455696) internal successors, (1608), 977 states have internal predecessors, (1608), 188 states have call successors, (188), 49 states have call predecessors, (188), 47 states have return successors, (196), 183 states have call predecessors, (196), 184 states have call successors, (196) [2024-11-08 14:46:03,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1992 transitions. [2024-11-08 14:46:03,701 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1992 transitions. Word has length 116 [2024-11-08 14:46:03,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:03,701 INFO L471 AbstractCegarLoop]: Abstraction has 1184 states and 1992 transitions. [2024-11-08 14:46:03,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:03,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1992 transitions. [2024-11-08 14:46:03,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 14:46:03,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:03,705 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:03,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 14:46:03,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:03,906 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:03,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:03,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1811366008, now seen corresponding path program 1 times [2024-11-08 14:46:03,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:03,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35820122] [2024-11-08 14:46:03,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:03,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:03,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:46:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:46:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 14:46:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:46:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 14:46:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 14:46:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 14:46:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 14:46:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 14:46:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 14:46:04,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:04,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35820122] [2024-11-08 14:46:04,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35820122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:04,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358198971] [2024-11-08 14:46:04,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:04,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:04,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:04,173 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:04,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 14:46:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:04,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 1381 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:46:04,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:46:04,452 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:04,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358198971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:04,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:04,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-08 14:46:04,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912712260] [2024-11-08 14:46:04,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:04,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:46:04,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:04,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:46:04,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:46:04,454 INFO L87 Difference]: Start difference. First operand 1184 states and 1992 transitions. Second operand has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:04,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:04,592 INFO L93 Difference]: Finished difference Result 2394 states and 4027 transitions. [2024-11-08 14:46:04,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:46:04,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 118 [2024-11-08 14:46:04,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:04,599 INFO L225 Difference]: With dead ends: 2394 [2024-11-08 14:46:04,599 INFO L226 Difference]: Without dead ends: 1220 [2024-11-08 14:46:04,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:46:04,605 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 89 mSDsluCounter, 4663 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5614 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:04,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5614 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:46:04,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2024-11-08 14:46:04,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1197. [2024-11-08 14:46:04,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 958 states have (on average 1.6941544885177453) internal successors, (1623), 989 states have internal predecessors, (1623), 189 states have call successors, (189), 49 states have call predecessors, (189), 49 states have return successors, (201), 184 states have call predecessors, (201), 185 states have call successors, (201) [2024-11-08 14:46:04,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 2013 transitions. [2024-11-08 14:46:04,643 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 2013 transitions. Word has length 118 [2024-11-08 14:46:04,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:04,644 INFO L471 AbstractCegarLoop]: Abstraction has 1197 states and 2013 transitions. [2024-11-08 14:46:04,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:04,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 2013 transitions. [2024-11-08 14:46:04,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 14:46:04,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:04,648 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-11-08 14:46:04,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 14:46:04,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:04,849 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:04,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:04,849 INFO L85 PathProgramCache]: Analyzing trace with hash 127341011, now seen corresponding path program 1 times [2024-11-08 14:46:04,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:04,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442001647] [2024-11-08 14:46:04,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:04,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:04,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 14:46:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:46:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 14:46:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 14:46:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 14:46:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 14:46:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 14:46:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 14:46:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 14:46:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,716 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:46:05,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:05,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442001647] [2024-11-08 14:46:05,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442001647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:05,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550442323] [2024-11-08 14:46:05,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:05,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:05,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:05,719 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:05,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 14:46:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:05,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:46:05,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:06,015 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:46:06,015 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:06,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550442323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:06,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:06,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-08 14:46:06,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987381782] [2024-11-08 14:46:06,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:06,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:46:06,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:06,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:46:06,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:46:06,017 INFO L87 Difference]: Start difference. First operand 1197 states and 2013 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:06,114 INFO L93 Difference]: Finished difference Result 2414 states and 4058 transitions. [2024-11-08 14:46:06,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:46:06,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2024-11-08 14:46:06,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:06,120 INFO L225 Difference]: With dead ends: 2414 [2024-11-08 14:46:06,121 INFO L226 Difference]: Without dead ends: 1229 [2024-11-08 14:46:06,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:46:06,126 INFO L432 NwaCegarLoop]: 950 mSDtfsCounter, 100 mSDsluCounter, 4646 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5596 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:06,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5596 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:46:06,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-11-08 14:46:06,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1197. [2024-11-08 14:46:06,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 958 states have (on average 1.6941544885177453) internal successors, (1623), 989 states have internal predecessors, (1623), 189 states have call successors, (189), 49 states have call predecessors, (189), 49 states have return successors, (201), 184 states have call predecessors, (201), 185 states have call successors, (201) [2024-11-08 14:46:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 2013 transitions. [2024-11-08 14:46:06,153 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 2013 transitions. Word has length 119 [2024-11-08 14:46:06,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:06,153 INFO L471 AbstractCegarLoop]: Abstraction has 1197 states and 2013 transitions. [2024-11-08 14:46:06,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:06,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 2013 transitions. [2024-11-08 14:46:06,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 14:46:06,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:06,182 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:06,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 14:46:06,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:06,383 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:06,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:06,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1740207191, now seen corresponding path program 1 times [2024-11-08 14:46:06,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:06,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406106317] [2024-11-08 14:46:06,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:06,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:46:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 14:46:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:46:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 14:46:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 14:46:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 14:46:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 14:46:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 14:46:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 14:46:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 14:46:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 14:46:06,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:06,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406106317] [2024-11-08 14:46:06,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406106317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:06,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498932301] [2024-11-08 14:46:06,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:06,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:06,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:06,622 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:06,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 14:46:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:06,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 1382 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:46:06,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:06,857 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:46:06,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:06,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498932301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:06,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:06,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:46:06,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143922166] [2024-11-08 14:46:06,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:06,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:46:06,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:06,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:46:06,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:46:06,859 INFO L87 Difference]: Start difference. First operand 1197 states and 2013 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:07,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:07,014 INFO L93 Difference]: Finished difference Result 2399 states and 4035 transitions. [2024-11-08 14:46:07,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:46:07,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2024-11-08 14:46:07,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:07,026 INFO L225 Difference]: With dead ends: 2399 [2024-11-08 14:46:07,026 INFO L226 Difference]: Without dead ends: 1208 [2024-11-08 14:46:07,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:46:07,042 INFO L432 NwaCegarLoop]: 952 mSDtfsCounter, 12 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:07,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2847 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:46:07,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2024-11-08 14:46:07,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1206. [2024-11-08 14:46:07,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 966 states have (on average 1.6853002070393375) internal successors, (1628), 997 states have internal predecessors, (1628), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-11-08 14:46:07,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 2017 transitions. [2024-11-08 14:46:07,105 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 2017 transitions. Word has length 119 [2024-11-08 14:46:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:07,105 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 2017 transitions. [2024-11-08 14:46:07,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 2017 transitions. [2024-11-08 14:46:07,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 14:46:07,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:07,112 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-11-08 14:46:07,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 14:46:07,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:07,313 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:07,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:07,313 INFO L85 PathProgramCache]: Analyzing trace with hash -107080124, now seen corresponding path program 1 times [2024-11-08 14:46:07,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:07,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645683412] [2024-11-08 14:46:07,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:07,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 14:46:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:46:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:46:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 14:46:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 14:46:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 14:46:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 14:46:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 14:46:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 14:46:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:07,878 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:46:07,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:07,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645683412] [2024-11-08 14:46:07,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645683412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:07,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407351480] [2024-11-08 14:46:07,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:07,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:07,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:07,880 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:07,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 14:46:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:46:08,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:08,162 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:46:08,164 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:08,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407351480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:08,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:08,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-08 14:46:08,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902225621] [2024-11-08 14:46:08,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:08,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:46:08,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:08,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:46:08,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:46:08,168 INFO L87 Difference]: Start difference. First operand 1206 states and 2017 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:08,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:08,258 INFO L93 Difference]: Finished difference Result 2423 states and 4053 transitions. [2024-11-08 14:46:08,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:46:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2024-11-08 14:46:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:08,264 INFO L225 Difference]: With dead ends: 2423 [2024-11-08 14:46:08,265 INFO L226 Difference]: Without dead ends: 1240 [2024-11-08 14:46:08,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:46:08,270 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 111 mSDsluCounter, 4639 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 5590 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:08,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 5590 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:46:08,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2024-11-08 14:46:08,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1206. [2024-11-08 14:46:08,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 966 states have (on average 1.6853002070393375) internal successors, (1628), 997 states have internal predecessors, (1628), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-11-08 14:46:08,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 2017 transitions. [2024-11-08 14:46:08,299 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 2017 transitions. Word has length 120 [2024-11-08 14:46:08,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:08,299 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 2017 transitions. [2024-11-08 14:46:08,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:08,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 2017 transitions. [2024-11-08 14:46:08,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 14:46:08,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:08,302 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-11-08 14:46:08,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 14:46:08,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-08 14:46:08,503 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:08,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:08,504 INFO L85 PathProgramCache]: Analyzing trace with hash -35089662, now seen corresponding path program 1 times [2024-11-08 14:46:08,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:08,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555809663] [2024-11-08 14:46:08,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:08,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 14:46:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:46:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:46:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 14:46:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 14:46:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 14:46:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 14:46:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 14:46:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 14:46:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:08,784 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:46:08,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:08,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555809663] [2024-11-08 14:46:08,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555809663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:08,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494193714] [2024-11-08 14:46:08,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:08,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:08,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:08,786 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:08,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 14:46:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:46:09,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:09,100 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:46:09,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:09,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494193714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:09,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:09,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-08 14:46:09,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983169888] [2024-11-08 14:46:09,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:09,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:46:09,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:09,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:46:09,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:46:09,104 INFO L87 Difference]: Start difference. First operand 1206 states and 2017 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:09,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:09,240 INFO L93 Difference]: Finished difference Result 2426 states and 4057 transitions. [2024-11-08 14:46:09,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:46:09,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2024-11-08 14:46:09,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:09,247 INFO L225 Difference]: With dead ends: 2426 [2024-11-08 14:46:09,247 INFO L226 Difference]: Without dead ends: 1243 [2024-11-08 14:46:09,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:46:09,253 INFO L432 NwaCegarLoop]: 941 mSDtfsCounter, 95 mSDsluCounter, 5549 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6490 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:09,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6490 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:46:09,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2024-11-08 14:46:09,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1206. [2024-11-08 14:46:09,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 966 states have (on average 1.6853002070393375) internal successors, (1628), 997 states have internal predecessors, (1628), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-11-08 14:46:09,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 2017 transitions. [2024-11-08 14:46:09,281 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 2017 transitions. Word has length 120 [2024-11-08 14:46:09,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:09,282 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 2017 transitions. [2024-11-08 14:46:09,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:09,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 2017 transitions. [2024-11-08 14:46:09,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 14:46:09,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:09,286 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2024-11-08 14:46:09,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 14:46:09,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:09,487 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:09,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:09,487 INFO L85 PathProgramCache]: Analyzing trace with hash 996880591, now seen corresponding path program 1 times [2024-11-08 14:46:09,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:09,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050240208] [2024-11-08 14:46:09,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:09,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 14:46:09,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:46:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:46:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 14:46:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:46:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 14:46:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 14:46:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 14:46:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 14:46:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,754 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:46:09,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:09,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050240208] [2024-11-08 14:46:09,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050240208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:09,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643505962] [2024-11-08 14:46:09,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:09,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:09,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:09,756 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:09,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 14:46:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:09,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:46:09,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:46:10,066 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:10,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643505962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:10,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:10,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-08 14:46:10,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569160233] [2024-11-08 14:46:10,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:10,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:46:10,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:10,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:46:10,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:46:10,068 INFO L87 Difference]: Start difference. First operand 1206 states and 2017 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:10,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:10,239 INFO L93 Difference]: Finished difference Result 2426 states and 4057 transitions. [2024-11-08 14:46:10,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:46:10,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2024-11-08 14:46:10,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:10,246 INFO L225 Difference]: With dead ends: 2426 [2024-11-08 14:46:10,247 INFO L226 Difference]: Without dead ends: 1243 [2024-11-08 14:46:10,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:46:10,253 INFO L432 NwaCegarLoop]: 940 mSDtfsCounter, 105 mSDsluCounter, 5531 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 6471 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:10,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 6471 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:46:10,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2024-11-08 14:46:10,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1206. [2024-11-08 14:46:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 966 states have (on average 1.6853002070393375) internal successors, (1628), 997 states have internal predecessors, (1628), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-11-08 14:46:10,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 2017 transitions. [2024-11-08 14:46:10,298 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 2017 transitions. Word has length 121 [2024-11-08 14:46:10,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:10,298 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 2017 transitions. [2024-11-08 14:46:10,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:10,299 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 2017 transitions. [2024-11-08 14:46:10,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 14:46:10,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:10,302 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2024-11-08 14:46:10,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 14:46:10,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 14:46:10,504 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:10,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:10,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1842820803, now seen corresponding path program 1 times [2024-11-08 14:46:10,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:10,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910318171] [2024-11-08 14:46:10,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:10,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:10,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:46:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:46:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 14:46:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:46:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 14:46:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 14:46:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 14:46:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 14:46:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 14:46:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:46:10,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:10,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910318171] [2024-11-08 14:46:10,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910318171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:10,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626447978] [2024-11-08 14:46:10,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:10,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:10,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:10,756 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:10,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 14:46:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:10,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 1381 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:46:10,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:11,048 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:46:11,048 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:11,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626447978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:11,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:11,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-11-08 14:46:11,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898599791] [2024-11-08 14:46:11,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:11,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:46:11,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:11,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:46:11,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:46:11,050 INFO L87 Difference]: Start difference. First operand 1206 states and 2017 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:11,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:11,184 INFO L93 Difference]: Finished difference Result 2417 states and 4042 transitions. [2024-11-08 14:46:11,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:46:11,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 122 [2024-11-08 14:46:11,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:11,190 INFO L225 Difference]: With dead ends: 2417 [2024-11-08 14:46:11,190 INFO L226 Difference]: Without dead ends: 1234 [2024-11-08 14:46:11,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:46:11,195 INFO L432 NwaCegarLoop]: 941 mSDtfsCounter, 115 mSDsluCounter, 5525 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 6466 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:11,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 6466 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:46:11,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2024-11-08 14:46:11,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 1206. [2024-11-08 14:46:11,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 966 states have (on average 1.6853002070393375) internal successors, (1628), 997 states have internal predecessors, (1628), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-11-08 14:46:11,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 2017 transitions. [2024-11-08 14:46:11,223 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 2017 transitions. Word has length 122 [2024-11-08 14:46:11,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:11,224 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 2017 transitions. [2024-11-08 14:46:11,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:11,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 2017 transitions. [2024-11-08 14:46:11,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 14:46:11,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:11,227 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:11,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 14:46:11,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 14:46:11,428 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:11,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:11,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1459442657, now seen corresponding path program 1 times [2024-11-08 14:46:11,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:11,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613406380] [2024-11-08 14:46:11,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:11,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:46:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:46:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:46:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 14:46:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:46:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 14:46:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 14:46:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 14:46:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 14:46:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 14:46:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:11,766 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 14:46:11,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:11,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613406380] [2024-11-08 14:46:11,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613406380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:11,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984661259] [2024-11-08 14:46:11,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:11,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:11,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:11,767 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:11,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 14:46:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:46:12,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:46:12,039 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:12,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984661259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:12,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:12,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:46:12,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833185131] [2024-11-08 14:46:12,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:12,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:46:12,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:12,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:46:12,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:46:12,041 INFO L87 Difference]: Start difference. First operand 1206 states and 2017 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:12,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:12,118 INFO L93 Difference]: Finished difference Result 2378 states and 3986 transitions. [2024-11-08 14:46:12,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:46:12,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-11-08 14:46:12,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:12,126 INFO L225 Difference]: With dead ends: 2378 [2024-11-08 14:46:12,126 INFO L226 Difference]: Without dead ends: 1206 [2024-11-08 14:46:12,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:46:12,130 INFO L432 NwaCegarLoop]: 949 mSDtfsCounter, 20 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:12,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2841 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:46:12,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-11-08 14:46:12,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2024-11-08 14:46:12,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 966 states have (on average 1.6801242236024845) internal successors, (1623), 997 states have internal predecessors, (1623), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-11-08 14:46:12,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 2012 transitions. [2024-11-08 14:46:12,155 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 2012 transitions. Word has length 122 [2024-11-08 14:46:12,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:12,155 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 2012 transitions. [2024-11-08 14:46:12,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:12,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 2012 transitions. [2024-11-08 14:46:12,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 14:46:12,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:12,158 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:12,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 14:46:12,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 14:46:12,359 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:12,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:12,360 INFO L85 PathProgramCache]: Analyzing trace with hash -563421386, now seen corresponding path program 1 times [2024-11-08 14:46:12,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:12,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297892794] [2024-11-08 14:46:12,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:12,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:46:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:46:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 14:46:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:46:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 14:46:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 14:46:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 14:46:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 14:46:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 14:46:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,691 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:46:12,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:12,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297892794] [2024-11-08 14:46:12,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297892794] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:12,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378400576] [2024-11-08 14:46:12,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:12,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:12,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:12,697 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:12,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 14:46:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:12,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:46:12,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 14:46:12,985 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:12,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378400576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:12,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:12,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2024-11-08 14:46:12,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107416980] [2024-11-08 14:46:12,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:12,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:46:12,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:12,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:46:12,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:46:12,987 INFO L87 Difference]: Start difference. First operand 1206 states and 2012 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:13,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:13,140 INFO L93 Difference]: Finished difference Result 2416 states and 4040 transitions. [2024-11-08 14:46:13,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:46:13,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-11-08 14:46:13,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:13,149 INFO L225 Difference]: With dead ends: 2416 [2024-11-08 14:46:13,149 INFO L226 Difference]: Without dead ends: 1302 [2024-11-08 14:46:13,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:46:13,157 INFO L432 NwaCegarLoop]: 914 mSDtfsCounter, 171 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:13,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 2713 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:46:13,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2024-11-08 14:46:13,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1251. [2024-11-08 14:46:13,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 1010 states have (on average 1.69009900990099) internal successors, (1707), 1041 states have internal predecessors, (1707), 189 states have call successors, (189), 51 states have call predecessors, (189), 51 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2024-11-08 14:46:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 2095 transitions. [2024-11-08 14:46:13,211 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 2095 transitions. Word has length 123 [2024-11-08 14:46:13,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:13,211 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 2095 transitions. [2024-11-08 14:46:13,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:13,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 2095 transitions. [2024-11-08 14:46:13,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 14:46:13,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:13,214 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:13,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-08 14:46:13,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 14:46:13,415 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:13,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:13,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1187945535, now seen corresponding path program 1 times [2024-11-08 14:46:13,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:13,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274256691] [2024-11-08 14:46:13,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:13,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:46:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:46:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 14:46:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 14:46:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 14:46:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 14:46:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 14:46:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 14:46:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 14:46:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,738 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:46:13,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:13,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274256691] [2024-11-08 14:46:13,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274256691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:13,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546186109] [2024-11-08 14:46:13,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:13,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:13,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:13,741 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:13,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 14:46:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:13,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:46:13,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:46:14,049 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:14,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546186109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:14,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:14,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-11-08 14:46:14,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57431256] [2024-11-08 14:46:14,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:14,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:46:14,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:14,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:46:14,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-08 14:46:14,051 INFO L87 Difference]: Start difference. First operand 1251 states and 2095 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:14,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:14,141 INFO L93 Difference]: Finished difference Result 2411 states and 4029 transitions. [2024-11-08 14:46:14,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:46:14,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 124 [2024-11-08 14:46:14,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:14,147 INFO L225 Difference]: With dead ends: 2411 [2024-11-08 14:46:14,148 INFO L226 Difference]: Without dead ends: 1297 [2024-11-08 14:46:14,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-08 14:46:14,152 INFO L432 NwaCegarLoop]: 952 mSDtfsCounter, 89 mSDsluCounter, 4671 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5623 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:14,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5623 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:46:14,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2024-11-08 14:46:14,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1264. [2024-11-08 14:46:14,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1020 states have (on average 1.688235294117647) internal successors, (1722), 1053 states have internal predecessors, (1722), 190 states have call successors, (190), 51 states have call predecessors, (190), 53 states have return successors, (202), 185 states have call predecessors, (202), 186 states have call successors, (202) [2024-11-08 14:46:14,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2114 transitions. [2024-11-08 14:46:14,177 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2114 transitions. Word has length 124 [2024-11-08 14:46:14,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:14,178 INFO L471 AbstractCegarLoop]: Abstraction has 1264 states and 2114 transitions. [2024-11-08 14:46:14,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:14,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2114 transitions. [2024-11-08 14:46:14,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 14:46:14,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:14,180 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-11-08 14:46:14,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 14:46:14,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:14,381 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:14,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:14,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2026594256, now seen corresponding path program 1 times [2024-11-08 14:46:14,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:14,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262797731] [2024-11-08 14:46:14,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:14,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:46:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:46:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 14:46:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:46:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:46:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 14:46:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 14:46:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 14:46:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 14:46:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,700 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:46:14,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:14,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262797731] [2024-11-08 14:46:14,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262797731] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:14,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022250102] [2024-11-08 14:46:14,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:14,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:14,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:14,702 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:14,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 14:46:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:14,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:46:14,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:15,014 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:46:15,015 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:15,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022250102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:15,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:15,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-11-08 14:46:15,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133754207] [2024-11-08 14:46:15,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:15,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:46:15,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:15,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:46:15,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:46:15,016 INFO L87 Difference]: Start difference. First operand 1264 states and 2114 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:15,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:15,110 INFO L93 Difference]: Finished difference Result 2420 states and 4043 transitions. [2024-11-08 14:46:15,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:46:15,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 125 [2024-11-08 14:46:15,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:15,118 INFO L225 Difference]: With dead ends: 2420 [2024-11-08 14:46:15,118 INFO L226 Difference]: Without dead ends: 1306 [2024-11-08 14:46:15,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:46:15,125 INFO L432 NwaCegarLoop]: 952 mSDtfsCounter, 100 mSDsluCounter, 4659 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5611 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:15,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5611 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:46:15,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2024-11-08 14:46:15,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1264. [2024-11-08 14:46:15,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1020 states have (on average 1.688235294117647) internal successors, (1722), 1053 states have internal predecessors, (1722), 190 states have call successors, (190), 51 states have call predecessors, (190), 53 states have return successors, (202), 185 states have call predecessors, (202), 186 states have call successors, (202) [2024-11-08 14:46:15,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2114 transitions. [2024-11-08 14:46:15,165 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2114 transitions. Word has length 125 [2024-11-08 14:46:15,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:15,166 INFO L471 AbstractCegarLoop]: Abstraction has 1264 states and 2114 transitions. [2024-11-08 14:46:15,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:15,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2114 transitions. [2024-11-08 14:46:15,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 14:46:15,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:15,170 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2024-11-08 14:46:15,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-08 14:46:15,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-08 14:46:15,371 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:15,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:15,371 INFO L85 PathProgramCache]: Analyzing trace with hash 289412016, now seen corresponding path program 1 times [2024-11-08 14:46:15,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:15,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254459104] [2024-11-08 14:46:15,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:15,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:15,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:46:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:46:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 14:46:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:46:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:46:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 14:46:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 14:46:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 14:46:15,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 14:46:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,626 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:46:15,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:15,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254459104] [2024-11-08 14:46:15,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254459104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:15,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294713012] [2024-11-08 14:46:15,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:15,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:15,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:15,631 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:15,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 14:46:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:15,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:46:15,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:15,954 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:46:15,955 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:15,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294713012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:15,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:15,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-08 14:46:15,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852540773] [2024-11-08 14:46:15,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:15,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:46:15,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:15,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:46:15,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:46:15,956 INFO L87 Difference]: Start difference. First operand 1264 states and 2114 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:16,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:16,104 INFO L93 Difference]: Finished difference Result 2423 states and 4046 transitions. [2024-11-08 14:46:16,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:46:16,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 125 [2024-11-08 14:46:16,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:16,112 INFO L225 Difference]: With dead ends: 2423 [2024-11-08 14:46:16,112 INFO L226 Difference]: Without dead ends: 1309 [2024-11-08 14:46:16,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-08 14:46:16,117 INFO L432 NwaCegarLoop]: 942 mSDtfsCounter, 96 mSDsluCounter, 5558 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 6500 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:16,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 6500 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:46:16,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2024-11-08 14:46:16,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1264. [2024-11-08 14:46:16,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1020 states have (on average 1.688235294117647) internal successors, (1722), 1053 states have internal predecessors, (1722), 190 states have call successors, (190), 51 states have call predecessors, (190), 53 states have return successors, (202), 185 states have call predecessors, (202), 186 states have call successors, (202) [2024-11-08 14:46:16,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2114 transitions. [2024-11-08 14:46:16,195 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2114 transitions. Word has length 125 [2024-11-08 14:46:16,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:16,195 INFO L471 AbstractCegarLoop]: Abstraction has 1264 states and 2114 transitions. [2024-11-08 14:46:16,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:16,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2114 transitions. [2024-11-08 14:46:16,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 14:46:16,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:16,199 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:16,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-08 14:46:16,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 14:46:16,400 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:16,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:16,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1729460634, now seen corresponding path program 1 times [2024-11-08 14:46:16,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:16,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976537494] [2024-11-08 14:46:16,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:16,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:46:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:46:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 14:46:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 14:46:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:46:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:46:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 14:46:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 14:46:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 14:46:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 14:46:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,650 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 14:46:16,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:16,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976537494] [2024-11-08 14:46:16,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976537494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:16,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196562641] [2024-11-08 14:46:16,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:16,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:16,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:16,653 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:16,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-08 14:46:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:16,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:46:16,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:46:16,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:16,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196562641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:16,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:16,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:46:16,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178679979] [2024-11-08 14:46:16,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:16,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:46:16,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:16,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:46:16,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:46:16,926 INFO L87 Difference]: Start difference. First operand 1264 states and 2114 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:16,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:16,970 INFO L93 Difference]: Finished difference Result 2454 states and 4109 transitions. [2024-11-08 14:46:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:46:16,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-11-08 14:46:16,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:16,977 INFO L225 Difference]: With dead ends: 2454 [2024-11-08 14:46:16,977 INFO L226 Difference]: Without dead ends: 1264 [2024-11-08 14:46:16,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:46:16,981 INFO L432 NwaCegarLoop]: 953 mSDtfsCounter, 2 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:16,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2850 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:46:16,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2024-11-08 14:46:17,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1264. [2024-11-08 14:46:17,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1020 states have (on average 1.6852941176470588) internal successors, (1719), 1053 states have internal predecessors, (1719), 190 states have call successors, (190), 51 states have call predecessors, (190), 53 states have return successors, (202), 185 states have call predecessors, (202), 186 states have call successors, (202) [2024-11-08 14:46:17,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2111 transitions. [2024-11-08 14:46:17,011 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2111 transitions. Word has length 125 [2024-11-08 14:46:17,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:17,011 INFO L471 AbstractCegarLoop]: Abstraction has 1264 states and 2111 transitions. [2024-11-08 14:46:17,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2111 transitions. [2024-11-08 14:46:17,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 14:46:17,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:17,014 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2024-11-08 14:46:17,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-08 14:46:17,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 14:46:17,215 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:17,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:17,216 INFO L85 PathProgramCache]: Analyzing trace with hash 978607357, now seen corresponding path program 1 times [2024-11-08 14:46:17,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:17,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334577330] [2024-11-08 14:46:17,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:17,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:46:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:46:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:46:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:46:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 14:46:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 14:46:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 14:46:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 14:46:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 14:46:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:46:17,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:17,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334577330] [2024-11-08 14:46:17,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334577330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:17,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693523349] [2024-11-08 14:46:17,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:17,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:17,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:17,512 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:17,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-08 14:46:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:17,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:46:17,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:17,848 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:46:17,848 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:17,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693523349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:17,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:17,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-08 14:46:17,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77110776] [2024-11-08 14:46:17,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:17,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:46:17,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:17,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:46:17,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:46:17,849 INFO L87 Difference]: Start difference. First operand 1264 states and 2111 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:18,022 INFO L93 Difference]: Finished difference Result 2414 states and 4029 transitions. [2024-11-08 14:46:18,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:46:18,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 126 [2024-11-08 14:46:18,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:18,028 INFO L225 Difference]: With dead ends: 2414 [2024-11-08 14:46:18,028 INFO L226 Difference]: Without dead ends: 1300 [2024-11-08 14:46:18,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-11-08 14:46:18,031 INFO L432 NwaCegarLoop]: 938 mSDtfsCounter, 106 mSDsluCounter, 5525 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6463 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:18,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6463 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:46:18,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2024-11-08 14:46:18,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1264. [2024-11-08 14:46:18,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1264 states, 1020 states have (on average 1.6852941176470588) internal successors, (1719), 1053 states have internal predecessors, (1719), 190 states have call successors, (190), 51 states have call predecessors, (190), 53 states have return successors, (202), 185 states have call predecessors, (202), 186 states have call successors, (202) [2024-11-08 14:46:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 2111 transitions. [2024-11-08 14:46:18,058 INFO L78 Accepts]: Start accepts. Automaton has 1264 states and 2111 transitions. Word has length 126 [2024-11-08 14:46:18,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:18,058 INFO L471 AbstractCegarLoop]: Abstraction has 1264 states and 2111 transitions. [2024-11-08 14:46:18,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:18,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1264 states and 2111 transitions. [2024-11-08 14:46:18,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 14:46:18,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:18,061 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 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] [2024-11-08 14:46:18,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-08 14:46:18,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 14:46:18,262 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:18,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:18,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1328556693, now seen corresponding path program 1 times [2024-11-08 14:46:18,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:18,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870689184] [2024-11-08 14:46:18,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:18,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:46:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:46:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 14:46:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 14:46:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 14:46:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 14:46:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 14:46:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 14:46:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 14:46:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:46:18,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:18,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870689184] [2024-11-08 14:46:18,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870689184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:18,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007244726] [2024-11-08 14:46:18,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:18,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:18,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:18,503 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:18,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-08 14:46:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:18,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 14:46:18,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:18,840 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 14:46:18,840 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:18,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007244726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:18,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:18,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2024-11-08 14:46:18,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845686844] [2024-11-08 14:46:18,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:18,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:46:18,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:18,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:46:18,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:46:18,841 INFO L87 Difference]: Start difference. First operand 1264 states and 2111 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:18,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:18,905 INFO L93 Difference]: Finished difference Result 2505 states and 4198 transitions. [2024-11-08 14:46:18,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:46:18,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-11-08 14:46:18,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:18,911 INFO L225 Difference]: With dead ends: 2505 [2024-11-08 14:46:18,911 INFO L226 Difference]: Without dead ends: 1229 [2024-11-08 14:46:18,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:46:18,915 INFO L432 NwaCegarLoop]: 950 mSDtfsCounter, 7 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:18,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2842 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:46:18,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-11-08 14:46:18,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2024-11-08 14:46:18,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 988 states have (on average 1.6720647773279351) internal successors, (1652), 1019 states have internal predecessors, (1652), 189 states have call successors, (189), 51 states have call predecessors, (189), 51 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2024-11-08 14:46:18,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 2040 transitions. [2024-11-08 14:46:18,969 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 2040 transitions. Word has length 127 [2024-11-08 14:46:18,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:18,969 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 2040 transitions. [2024-11-08 14:46:18,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:18,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 2040 transitions. [2024-11-08 14:46:18,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-08 14:46:18,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:18,972 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:18,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-08 14:46:19,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:19,173 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:19,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:19,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1824623296, now seen corresponding path program 1 times [2024-11-08 14:46:19,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:19,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352594291] [2024-11-08 14:46:19,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:19,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 14:46:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 14:46:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 14:46:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 14:46:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 14:46:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 14:46:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 14:46:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 14:46:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,399 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 14:46:19,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:19,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352594291] [2024-11-08 14:46:19,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352594291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:46:19,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089026735] [2024-11-08 14:46:19,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:19,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:19,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:46:19,401 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:46:19,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-08 14:46:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:19,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 14:46:19,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:46:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:46:19,728 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:46:19,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089026735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:19,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:46:19,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2024-11-08 14:46:19,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743226550] [2024-11-08 14:46:19,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:19,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:46:19,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:19,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:46:19,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:46:19,731 INFO L87 Difference]: Start difference. First operand 1229 states and 2040 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:19,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:19,821 INFO L93 Difference]: Finished difference Result 2464 states and 4088 transitions. [2024-11-08 14:46:19,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:46:19,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 128 [2024-11-08 14:46:19,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:19,827 INFO L225 Difference]: With dead ends: 2464 [2024-11-08 14:46:19,827 INFO L226 Difference]: Without dead ends: 1252 [2024-11-08 14:46:19,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:46:19,830 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 122 mSDsluCounter, 4661 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 5621 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:19,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 5621 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:46:19,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-11-08 14:46:19,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1222. [2024-11-08 14:46:19,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 981 states have (on average 1.6676860346585116) internal successors, (1636), 1012 states have internal predecessors, (1636), 189 states have call successors, (189), 51 states have call predecessors, (189), 51 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2024-11-08 14:46:19,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 2024 transitions. [2024-11-08 14:46:19,857 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 2024 transitions. Word has length 128 [2024-11-08 14:46:19,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:19,857 INFO L471 AbstractCegarLoop]: Abstraction has 1222 states and 2024 transitions. [2024-11-08 14:46:19,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:19,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 2024 transitions. [2024-11-08 14:46:19,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 14:46:19,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:19,859 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:19,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-08 14:46:20,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:46:20,063 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:20,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:20,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1668543117, now seen corresponding path program 1 times [2024-11-08 14:46:20,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:20,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030422872] [2024-11-08 14:46:20,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:20,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:46:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 14:46:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 14:46:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 14:46:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 14:46:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 14:46:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 14:46:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 14:46:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:20,316 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 14:46:20,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:20,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030422872] [2024-11-08 14:46:20,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030422872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:20,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:46:20,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:46:20,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594621580] [2024-11-08 14:46:20,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:20,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:46:20,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:20,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:46:20,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:46:20,317 INFO L87 Difference]: Start difference. First operand 1222 states and 2024 transitions. Second operand has 9 states, 8 states have (on average 11.125) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:24,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:24,722 INFO L93 Difference]: Finished difference Result 2835 states and 4733 transitions. [2024-11-08 14:46:24,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 14:46:24,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2024-11-08 14:46:24,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:24,730 INFO L225 Difference]: With dead ends: 2835 [2024-11-08 14:46:24,730 INFO L226 Difference]: Without dead ends: 1715 [2024-11-08 14:46:24,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-11-08 14:46:24,734 INFO L432 NwaCegarLoop]: 429 mSDtfsCounter, 1518 mSDsluCounter, 2260 mSDsCounter, 0 mSdLazyCounter, 5015 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1573 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 5421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 5015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:24,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1573 Valid, 2689 Invalid, 5421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 5015 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-08 14:46:24,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2024-11-08 14:46:24,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1284. [2024-11-08 14:46:24,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 1029 states have (on average 1.6588921282798834) internal successors, (1707), 1060 states have internal predecessors, (1707), 201 states have call successors, (201), 51 states have call predecessors, (201), 53 states have return successors, (220), 196 states have call predecessors, (220), 197 states have call successors, (220) [2024-11-08 14:46:24,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 2128 transitions. [2024-11-08 14:46:24,963 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 2128 transitions. Word has length 129 [2024-11-08 14:46:24,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:24,963 INFO L471 AbstractCegarLoop]: Abstraction has 1284 states and 2128 transitions. [2024-11-08 14:46:24,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:46:24,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 2128 transitions. [2024-11-08 14:46:24,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 14:46:24,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:24,966 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-08 14:46:24,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 14:46:24,966 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:24,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:24,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1029484769, now seen corresponding path program 1 times [2024-11-08 14:46:24,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:24,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102661014] [2024-11-08 14:46:24,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:24,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:46:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:46:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 14:46:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 14:46:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 14:46:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 14:46:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 14:46:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 14:46:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 14:46:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 14:46:25,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:25,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102661014] [2024-11-08 14:46:25,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102661014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:25,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:46:25,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:46:25,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665532311] [2024-11-08 14:46:25,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:25,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:46:25,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:25,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:46:25,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:46:25,157 INFO L87 Difference]: Start difference. First operand 1284 states and 2128 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:28,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:28,397 INFO L93 Difference]: Finished difference Result 2950 states and 4915 transitions. [2024-11-08 14:46:28,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:46:28,398 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-11-08 14:46:28,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:28,404 INFO L225 Difference]: With dead ends: 2950 [2024-11-08 14:46:28,404 INFO L226 Difference]: Without dead ends: 1674 [2024-11-08 14:46:28,407 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:46:28,407 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 1471 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 2618 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 2618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:28,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1419 Invalid, 3018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 2618 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 14:46:28,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2024-11-08 14:46:28,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1256. [2024-11-08 14:46:28,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 1004 states have (on average 1.654382470119522) internal successors, (1661), 1033 states have internal predecessors, (1661), 200 states have call successors, (200), 51 states have call predecessors, (200), 51 states have return successors, (217), 195 states have call predecessors, (217), 196 states have call successors, (217) [2024-11-08 14:46:28,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 2078 transitions. [2024-11-08 14:46:28,531 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 2078 transitions. Word has length 129 [2024-11-08 14:46:28,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:28,532 INFO L471 AbstractCegarLoop]: Abstraction has 1256 states and 2078 transitions. [2024-11-08 14:46:28,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:46:28,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 2078 transitions. [2024-11-08 14:46:28,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-08 14:46:28,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:28,534 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:28,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 14:46:28,535 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:28,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:28,535 INFO L85 PathProgramCache]: Analyzing trace with hash -833986604, now seen corresponding path program 1 times [2024-11-08 14:46:28,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:28,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052279359] [2024-11-08 14:46:28,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:28,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:46:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:46:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:46:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 14:46:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:46:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 14:46:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 14:46:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 14:46:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 14:46:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-08 14:46:28,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:28,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052279359] [2024-11-08 14:46:28,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052279359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:28,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:46:28,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:46:28,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107124147] [2024-11-08 14:46:28,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:28,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:46:28,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:28,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:46:28,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:46:28,796 INFO L87 Difference]: Start difference. First operand 1256 states and 2078 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 14:46:34,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:34,702 INFO L93 Difference]: Finished difference Result 4267 states and 7347 transitions. [2024-11-08 14:46:34,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:46:34,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 130 [2024-11-08 14:46:34,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:34,715 INFO L225 Difference]: With dead ends: 4267 [2024-11-08 14:46:34,715 INFO L226 Difference]: Without dead ends: 3099 [2024-11-08 14:46:34,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:46:34,727 INFO L432 NwaCegarLoop]: 785 mSDtfsCounter, 4426 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 3903 mSolverCounterSat, 1340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4436 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 5243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1340 IncrementalHoareTripleChecker+Valid, 3903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:34,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4436 Valid, 1590 Invalid, 5243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1340 Valid, 3903 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-08 14:46:34,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2024-11-08 14:46:34,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 2379. [2024-11-08 14:46:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 1898 states have (on average 1.6506849315068493) internal successors, (3133), 1954 states have internal predecessors, (3133), 383 states have call successors, (383), 96 states have call predecessors, (383), 97 states have return successors, (443), 376 states have call predecessors, (443), 377 states have call successors, (443) [2024-11-08 14:46:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3959 transitions. [2024-11-08 14:46:34,980 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3959 transitions. Word has length 130 [2024-11-08 14:46:34,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:34,980 INFO L471 AbstractCegarLoop]: Abstraction has 2379 states and 3959 transitions. [2024-11-08 14:46:34,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 14:46:34,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3959 transitions. [2024-11-08 14:46:34,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-08 14:46:34,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:34,982 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:34,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 14:46:34,983 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:34,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:34,983 INFO L85 PathProgramCache]: Analyzing trace with hash 783805981, now seen corresponding path program 1 times [2024-11-08 14:46:34,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:34,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087951273] [2024-11-08 14:46:34,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:34,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:46:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:46:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:46:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 14:46:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 14:46:35,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 14:46:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 14:46:35,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 14:46:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 14:46:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:35,206 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-08 14:46:35,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:35,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087951273] [2024-11-08 14:46:35,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087951273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:35,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:46:35,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:46:35,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920776334] [2024-11-08 14:46:35,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:35,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:46:35,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:35,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:46:35,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:46:35,207 INFO L87 Difference]: Start difference. First operand 2379 states and 3959 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 14:46:41,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:41,242 INFO L93 Difference]: Finished difference Result 8258 states and 14477 transitions. [2024-11-08 14:46:41,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:46:41,242 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 131 [2024-11-08 14:46:41,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:41,264 INFO L225 Difference]: With dead ends: 8258 [2024-11-08 14:46:41,264 INFO L226 Difference]: Without dead ends: 5967 [2024-11-08 14:46:41,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:46:41,274 INFO L432 NwaCegarLoop]: 823 mSDtfsCounter, 4431 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 3979 mSolverCounterSat, 1290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4442 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 5269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1290 IncrementalHoareTripleChecker+Valid, 3979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:41,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4442 Valid, 1667 Invalid, 5269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1290 Valid, 3979 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-08 14:46:41,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2024-11-08 14:46:41,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 4635. [2024-11-08 14:46:41,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4635 states, 3694 states have (on average 1.6445587439090417) internal successors, (6075), 3804 states have internal predecessors, (6075), 751 states have call successors, (751), 186 states have call predecessors, (751), 189 states have return successors, (944), 740 states have call predecessors, (944), 741 states have call successors, (944) [2024-11-08 14:46:41,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4635 states to 4635 states and 7770 transitions. [2024-11-08 14:46:41,930 INFO L78 Accepts]: Start accepts. Automaton has 4635 states and 7770 transitions. Word has length 131 [2024-11-08 14:46:41,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:41,931 INFO L471 AbstractCegarLoop]: Abstraction has 4635 states and 7770 transitions. [2024-11-08 14:46:41,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 14:46:41,931 INFO L276 IsEmpty]: Start isEmpty. Operand 4635 states and 7770 transitions. [2024-11-08 14:46:41,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-08 14:46:41,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:41,934 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:41,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 14:46:41,934 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:41,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:41,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1806932081, now seen corresponding path program 1 times [2024-11-08 14:46:41,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:41,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223178305] [2024-11-08 14:46:41,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:41,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:41,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:46:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:46:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:46:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 14:46:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:46:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 14:46:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 14:46:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 14:46:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 14:46:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:42,197 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-08 14:46:42,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:42,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223178305] [2024-11-08 14:46:42,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223178305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:42,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:46:42,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:46:42,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078334866] [2024-11-08 14:46:42,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:42,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:46:42,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:42,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:46:42,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:46:42,199 INFO L87 Difference]: Start difference. First operand 4635 states and 7770 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 14:46:49,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:46:49,048 INFO L93 Difference]: Finished difference Result 16284 states and 29434 transitions. [2024-11-08 14:46:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:46:49,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 132 [2024-11-08 14:46:49,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:46:49,138 INFO L225 Difference]: With dead ends: 16284 [2024-11-08 14:46:49,139 INFO L226 Difference]: Without dead ends: 11737 [2024-11-08 14:46:49,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:46:49,164 INFO L432 NwaCegarLoop]: 838 mSDtfsCounter, 4465 mSDsluCounter, 867 mSDsCounter, 0 mSdLazyCounter, 3981 mSolverCounterSat, 1307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 5288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1307 IncrementalHoareTripleChecker+Valid, 3981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:46:49,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4477 Valid, 1705 Invalid, 5288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1307 Valid, 3981 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-08 14:46:49,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11737 states. [2024-11-08 14:46:50,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11737 to 9157. [2024-11-08 14:46:50,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9157 states, 7294 states have (on average 1.6370989854675075) internal successors, (11941), 7512 states have internal predecessors, (11941), 1489 states have call successors, (1489), 366 states have call predecessors, (1489), 373 states have return successors, (2091), 1470 states have call predecessors, (2091), 1471 states have call successors, (2091) [2024-11-08 14:46:50,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9157 states to 9157 states and 15521 transitions. [2024-11-08 14:46:50,569 INFO L78 Accepts]: Start accepts. Automaton has 9157 states and 15521 transitions. Word has length 132 [2024-11-08 14:46:50,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:46:50,569 INFO L471 AbstractCegarLoop]: Abstraction has 9157 states and 15521 transitions. [2024-11-08 14:46:50,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 14:46:50,569 INFO L276 IsEmpty]: Start isEmpty. Operand 9157 states and 15521 transitions. [2024-11-08 14:46:50,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-08 14:46:50,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:46:50,572 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:46:50,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 14:46:50,572 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:46:50,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:46:50,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1718134024, now seen corresponding path program 1 times [2024-11-08 14:46:50,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:46:50,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014332620] [2024-11-08 14:46:50,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:46:50,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:46:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:46:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:46:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:46:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:46:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:46:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:46:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 14:46:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:46:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 14:46:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 14:46:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 14:46:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 14:46:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:46:50,787 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-08 14:46:50,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:46:50,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014332620] [2024-11-08 14:46:50,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014332620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:46:50,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:46:50,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:46:50,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119635086] [2024-11-08 14:46:50,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:46:50,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:46:50,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:46:50,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:46:50,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:46:50,788 INFO L87 Difference]: Start difference. First operand 9157 states and 15521 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 14:47:00,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:47:00,420 INFO L93 Difference]: Finished difference Result 32380 states and 61493 transitions. [2024-11-08 14:47:00,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:47:00,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 133 [2024-11-08 14:47:00,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:47:00,612 INFO L225 Difference]: With dead ends: 32380 [2024-11-08 14:47:00,612 INFO L226 Difference]: Without dead ends: 23311 [2024-11-08 14:47:00,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:47:00,744 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 4494 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 4018 mSolverCounterSat, 1313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4507 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 5331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1313 IncrementalHoareTripleChecker+Valid, 4018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-08 14:47:00,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4507 Valid, 1760 Invalid, 5331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1313 Valid, 4018 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-08 14:47:00,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23311 states. [2024-11-08 14:47:03,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23311 to 18211. [2024-11-08 14:47:03,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18211 states, 14502 states have (on average 1.6289477313474003) internal successors, (23623), 14936 states have internal predecessors, (23623), 2967 states have call successors, (2967), 726 states have call predecessors, (2967), 741 states have return successors, (4834), 2932 states have call predecessors, (4834), 2933 states have call successors, (4834) [2024-11-08 14:47:03,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18211 states to 18211 states and 31424 transitions. [2024-11-08 14:47:03,908 INFO L78 Accepts]: Start accepts. Automaton has 18211 states and 31424 transitions. Word has length 133 [2024-11-08 14:47:03,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:47:03,908 INFO L471 AbstractCegarLoop]: Abstraction has 18211 states and 31424 transitions. [2024-11-08 14:47:03,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 14:47:03,909 INFO L276 IsEmpty]: Start isEmpty. Operand 18211 states and 31424 transitions. [2024-11-08 14:47:03,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 14:47:03,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:47:03,911 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2024-11-08 14:47:03,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 14:47:03,911 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:47:03,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:47:03,912 INFO L85 PathProgramCache]: Analyzing trace with hash -168094902, now seen corresponding path program 1 times [2024-11-08 14:47:03,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:47:03,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503351448] [2024-11-08 14:47:03,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:47:03,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:47:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:47:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:47:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:47:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:47:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:47:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:47:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:47:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 14:47:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:47:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 14:47:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 14:47:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 14:47:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 14:47:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:47:04,363 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-08 14:47:04,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:47:04,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503351448] [2024-11-08 14:47:04,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503351448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:47:04,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:47:04,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:47:04,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344281602] [2024-11-08 14:47:04,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:47:04,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:47:04,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:47:04,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:47:04,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:47:04,365 INFO L87 Difference]: Start difference. First operand 18211 states and 31424 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 14:47:19,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:47:19,257 INFO L93 Difference]: Finished difference Result 64616 states and 132532 transitions. [2024-11-08 14:47:19,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:47:19,257 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 134 [2024-11-08 14:47:19,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:47:19,512 INFO L225 Difference]: With dead ends: 64616 [2024-11-08 14:47:19,512 INFO L226 Difference]: Without dead ends: 46493 [2024-11-08 14:47:19,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:47:19,682 INFO L432 NwaCegarLoop]: 887 mSDtfsCounter, 4518 mSDsluCounter, 927 mSDsCounter, 0 mSdLazyCounter, 4026 mSolverCounterSat, 1331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4532 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 5357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1331 IncrementalHoareTripleChecker+Valid, 4026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-08 14:47:19,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4532 Valid, 1814 Invalid, 5357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1331 Valid, 4026 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-08 14:47:19,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46493 states. [2024-11-08 14:47:26,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46493 to 36329.