./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product32.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 5ead0301c8481fccc00f115bae086423ed9e315d4392b2a0732a4d381346437b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 21:39:04,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 21:39:04,404 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 21:39:04,407 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 21:39:04,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 21:39:04,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 21:39:04,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 21:39:04,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 21:39:04,426 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 21:39:04,426 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 21:39:04,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 21:39:04,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 21:39:04,427 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 21:39:04,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 21:39:04,428 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 21:39:04,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 21:39:04,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 21:39:04,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 21:39:04,429 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 21:39:04,429 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 21:39:04,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 21:39:04,433 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 21:39:04,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 21:39:04,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 21:39:04,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 21:39:04,434 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 21:39:04,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 21:39:04,435 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 21:39:04,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 21:39:04,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 21:39:04,435 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 21:39:04,436 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 21:39:04,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:39:04,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 21:39:04,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 21:39:04,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 21:39:04,437 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 21:39:04,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 21:39:04,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 21:39:04,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 21:39:04,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 21:39:04,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 21:39:04,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ead0301c8481fccc00f115bae086423ed9e315d4392b2a0732a4d381346437b [2024-11-19 21:39:04,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 21:39:04,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 21:39:04,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 21:39:04,622 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 21:39:04,622 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 21:39:04,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c [2024-11-19 21:39:05,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 21:39:06,200 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 21:39:06,200 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c [2024-11-19 21:39:06,221 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/033e6b341/4f3f37dbe27c4640928a7ad77d64d604/FLAG0d974ce98 [2024-11-19 21:39:06,236 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/033e6b341/4f3f37dbe27c4640928a7ad77d64d604 [2024-11-19 21:39:06,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 21:39:06,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 21:39:06,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 21:39:06,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 21:39:06,249 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 21:39:06,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:06,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@616f8e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06, skipping insertion in model container [2024-11-19 21:39:06,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:06,306 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 21:39:06,670 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_spec14_product32.cil.c[71521,71534] [2024-11-19 21:39:06,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:39:06,704 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 21:39:06,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2024-11-19 21:39:06,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [169] [2024-11-19 21:39:06,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [187] [2024-11-19 21:39:06,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] [2024-11-19 21:39:06,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [911] [2024-11-19 21:39:06,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [946] [2024-11-19 21:39:06,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1042] [2024-11-19 21:39:06,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1709] [2024-11-19 21:39:06,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3370] [2024-11-19 21:39:06,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [3379] [2024-11-19 21:39:06,845 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_spec14_product32.cil.c[71521,71534] [2024-11-19 21:39:06,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:39:06,870 INFO L204 MainTranslator]: Completed translation [2024-11-19 21:39:06,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06 WrapperNode [2024-11-19 21:39:06,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 21:39:06,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 21:39:06,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 21:39:06,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 21:39:06,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:06,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:06,927 INFO L138 Inliner]: procedures = 96, calls = 348, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 906 [2024-11-19 21:39:06,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 21:39:06,928 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 21:39:06,928 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 21:39:06,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 21:39:06,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:06,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:06,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:06,965 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 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]. [2024-11-19 21:39:06,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:06,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:06,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:06,994 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:06,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:07,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:07,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 21:39:07,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 21:39:07,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 21:39:07,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 21:39:07,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (1/1) ... [2024-11-19 21:39:07,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:39:07,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:39:07,047 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) [2024-11-19 21:39:07,050 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 [2024-11-19 21:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 21:39:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-19 21:39:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-19 21:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-19 21:39:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-19 21:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-19 21:39:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-19 21:39:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-19 21:39:07,088 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-19 21:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-19 21:39:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-19 21:39:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-19 21:39:07,089 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-19 21:39:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-19 21:39:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-19 21:39:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-19 21:39:07,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-19 21:39:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-11-19 21:39:07,091 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-11-19 21:39:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-19 21:39:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-19 21:39:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-19 21:39:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-19 21:39:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-19 21:39:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-19 21:39:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-19 21:39:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-19 21:39:07,092 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-19 21:39:07,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-19 21:39:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-19 21:39:07,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-19 21:39:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-19 21:39:07,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-19 21:39:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-19 21:39:07,093 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-19 21:39:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-19 21:39:07,093 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-19 21:39:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-19 21:39:07,093 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-19 21:39:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-19 21:39:07,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-19 21:39:07,093 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-19 21:39:07,094 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-19 21:39:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 21:39:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 21:39:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 21:39:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 21:39:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 21:39:07,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 21:39:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 21:39:07,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 21:39:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 21:39:07,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 21:39:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 21:39:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 21:39:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 21:39:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 21:39:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 21:39:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 21:39:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 21:39:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-19 21:39:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-19 21:39:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-19 21:39:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-19 21:39:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-19 21:39:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-19 21:39:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-19 21:39:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-19 21:39:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-19 21:39:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-19 21:39:07,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-19 21:39:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 21:39:07,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 21:39:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-19 21:39:07,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-19 21:39:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-11-19 21:39:07,101 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-11-19 21:39:07,265 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 21:39:07,267 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 21:39:08,320 INFO L? ?]: Removed 475 outVars from TransFormulas that were not future-live. [2024-11-19 21:39:08,320 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 21:39:08,351 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 21:39:08,351 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 21:39:08,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:39:08 BoogieIcfgContainer [2024-11-19 21:39:08,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 21:39:08,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 21:39:08,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 21:39:08,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 21:39:08,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:39:06" (1/3) ... [2024-11-19 21:39:08,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e0a5f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:39:08, skipping insertion in model container [2024-11-19 21:39:08,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:39:06" (2/3) ... [2024-11-19 21:39:08,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e0a5f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:39:08, skipping insertion in model container [2024-11-19 21:39:08,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:39:08" (3/3) ... [2024-11-19 21:39:08,361 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product32.cil.c [2024-11-19 21:39:08,379 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 21:39:08,380 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 21:39:08,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 21:39:08,453 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;@5e7a0eed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 21:39:08,454 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 21:39:08,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 581 states, 449 states have (on average 1.6614699331848553) internal successors, (746), 467 states have internal predecessors, (746), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-19 21:39:08,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-19 21:39:08,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:08,477 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:08,477 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:08,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:08,483 INFO L85 PathProgramCache]: Analyzing trace with hash 572434695, now seen corresponding path program 1 times [2024-11-19 21:39:08,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:08,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096225294] [2024-11-19 21:39:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:08,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:09,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:09,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:09,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:09,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:39:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:09,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:39:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:09,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:09,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-19 21:39:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:09,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-19 21:39:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:09,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:09,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:09,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096225294] [2024-11-19 21:39:09,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096225294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:09,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:09,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:39:09,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214108948] [2024-11-19 21:39:09,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:09,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:09,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:09,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:09,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:09,245 INFO L87 Difference]: Start difference. First operand has 581 states, 449 states have (on average 1.6614699331848553) internal successors, (746), 467 states have internal predecessors, (746), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:12,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:12,276 INFO L93 Difference]: Finished difference Result 1278 states and 2121 transitions. [2024-11-19 21:39:12,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:39:12,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2024-11-19 21:39:12,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:12,293 INFO L225 Difference]: With dead ends: 1278 [2024-11-19 21:39:12,294 INFO L226 Difference]: Without dead ends: 697 [2024-11-19 21:39:12,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 21:39:12,303 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 688 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:12,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 1571 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-19 21:39:12,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-19 21:39:12,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 576. [2024-11-19 21:39:12,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 445 states have (on average 1.651685393258427) internal successors, (735), 462 states have internal predecessors, (735), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 21:39:12,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 940 transitions. [2024-11-19 21:39:12,454 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 940 transitions. Word has length 63 [2024-11-19 21:39:12,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:12,454 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 940 transitions. [2024-11-19 21:39:12,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:12,455 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 940 transitions. [2024-11-19 21:39:12,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 21:39:12,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:12,458 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:12,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 21:39:12,458 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:12,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:12,459 INFO L85 PathProgramCache]: Analyzing trace with hash -980358575, now seen corresponding path program 1 times [2024-11-19 21:39:12,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:12,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956304413] [2024-11-19 21:39:12,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:12,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:12,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:12,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:12,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:39:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:12,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 21:39:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:12,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-19 21:39:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:12,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:12,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-19 21:39:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:12,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 21:39:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:12,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:12,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:12,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956304413] [2024-11-19 21:39:12,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956304413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:12,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:12,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:39:12,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287668325] [2024-11-19 21:39:12,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:12,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:12,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:12,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:12,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:12,666 INFO L87 Difference]: Start difference. First operand 576 states and 940 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:15,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:15,169 INFO L93 Difference]: Finished difference Result 1256 states and 2065 transitions. [2024-11-19 21:39:15,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:39:15,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2024-11-19 21:39:15,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:15,176 INFO L225 Difference]: With dead ends: 1256 [2024-11-19 21:39:15,176 INFO L226 Difference]: Without dead ends: 697 [2024-11-19 21:39:15,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:39:15,179 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 681 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:15,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 1528 Invalid, 1891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 21:39:15,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-19 21:39:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 576. [2024-11-19 21:39:15,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 445 states have (on average 1.649438202247191) internal successors, (734), 462 states have internal predecessors, (734), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 21:39:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 939 transitions. [2024-11-19 21:39:15,265 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 939 transitions. Word has length 64 [2024-11-19 21:39:15,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:15,265 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 939 transitions. [2024-11-19 21:39:15,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:15,266 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 939 transitions. [2024-11-19 21:39:15,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-19 21:39:15,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:15,267 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:15,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 21:39:15,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:15,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:15,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1204370371, now seen corresponding path program 1 times [2024-11-19 21:39:15,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:15,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885589484] [2024-11-19 21:39:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:15,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:15,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:15,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:15,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:39:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:15,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:39:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:15,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-19 21:39:15,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:15,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:15,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:39:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:15,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 21:39:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:15,500 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:15,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:15,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885589484] [2024-11-19 21:39:15,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885589484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:15,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:15,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:39:15,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570289902] [2024-11-19 21:39:15,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:15,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:15,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:15,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:15,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:15,503 INFO L87 Difference]: Start difference. First operand 576 states and 939 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:17,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:17,642 INFO L93 Difference]: Finished difference Result 1256 states and 2064 transitions. [2024-11-19 21:39:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:39:17,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2024-11-19 21:39:17,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:17,650 INFO L225 Difference]: With dead ends: 1256 [2024-11-19 21:39:17,650 INFO L226 Difference]: Without dead ends: 697 [2024-11-19 21:39:17,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:39:17,653 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 679 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:17,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1528 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-19 21:39:17,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-19 21:39:17,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 576. [2024-11-19 21:39:17,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 445 states have (on average 1.6471910112359551) internal successors, (733), 462 states have internal predecessors, (733), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 21:39:17,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 938 transitions. [2024-11-19 21:39:17,705 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 938 transitions. Word has length 65 [2024-11-19 21:39:17,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:17,706 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 938 transitions. [2024-11-19 21:39:17,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 938 transitions. [2024-11-19 21:39:17,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-19 21:39:17,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:17,708 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:17,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 21:39:17,708 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:17,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:17,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1006796275, now seen corresponding path program 1 times [2024-11-19 21:39:17,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:17,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818410882] [2024-11-19 21:39:17,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:17,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:17,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:17,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:17,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 21:39:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:17,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:39:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:17,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 21:39:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:17,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:17,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 21:39:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:17,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-19 21:39:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:17,933 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:17,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:17,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818410882] [2024-11-19 21:39:17,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818410882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:17,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:17,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:39:17,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044385666] [2024-11-19 21:39:17,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:17,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:17,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:17,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:17,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:17,937 INFO L87 Difference]: Start difference. First operand 576 states and 938 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:20,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:20,160 INFO L93 Difference]: Finished difference Result 1256 states and 2063 transitions. [2024-11-19 21:39:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:39:20,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2024-11-19 21:39:20,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:20,165 INFO L225 Difference]: With dead ends: 1256 [2024-11-19 21:39:20,165 INFO L226 Difference]: Without dead ends: 697 [2024-11-19 21:39:20,167 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:39:20,167 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 677 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:20,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1528 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 21:39:20,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-19 21:39:20,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 576. [2024-11-19 21:39:20,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 445 states have (on average 1.644943820224719) internal successors, (732), 462 states have internal predecessors, (732), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 21:39:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 937 transitions. [2024-11-19 21:39:20,211 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 937 transitions. Word has length 66 [2024-11-19 21:39:20,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:20,212 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 937 transitions. [2024-11-19 21:39:20,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 937 transitions. [2024-11-19 21:39:20,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 21:39:20,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:20,213 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:20,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 21:39:20,213 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:20,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:20,214 INFO L85 PathProgramCache]: Analyzing trace with hash -2051772801, now seen corresponding path program 1 times [2024-11-19 21:39:20,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:20,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232156092] [2024-11-19 21:39:20,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:20,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:20,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:20,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:20,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 21:39:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:20,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-19 21:39:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:20,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:39:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:20,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:20,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:39:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:20,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-19 21:39:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:20,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:20,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:20,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232156092] [2024-11-19 21:39:20,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232156092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:20,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:20,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:39:20,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707803819] [2024-11-19 21:39:20,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:20,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:20,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:20,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:20,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:20,422 INFO L87 Difference]: Start difference. First operand 576 states and 937 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:22,638 INFO L93 Difference]: Finished difference Result 1256 states and 2062 transitions. [2024-11-19 21:39:22,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:39:22,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2024-11-19 21:39:22,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:22,645 INFO L225 Difference]: With dead ends: 1256 [2024-11-19 21:39:22,645 INFO L226 Difference]: Without dead ends: 697 [2024-11-19 21:39:22,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:39:22,648 INFO L432 NwaCegarLoop]: 488 mSDtfsCounter, 675 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:22,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 1528 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 21:39:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2024-11-19 21:39:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 576. [2024-11-19 21:39:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 445 states have (on average 1.6426966292134833) internal successors, (731), 462 states have internal predecessors, (731), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 21:39:22,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 936 transitions. [2024-11-19 21:39:22,692 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 936 transitions. Word has length 67 [2024-11-19 21:39:22,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:22,692 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 936 transitions. [2024-11-19 21:39:22,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:22,692 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 936 transitions. [2024-11-19 21:39:22,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 21:39:22,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:22,694 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:22,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 21:39:22,697 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:22,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:22,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1304593975, now seen corresponding path program 1 times [2024-11-19 21:39:22,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:22,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627365600] [2024-11-19 21:39:22,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:22,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:22,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:22,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:22,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:22,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-19 21:39:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:22,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-19 21:39:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:22,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:22,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 21:39:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:22,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:39:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:22,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:22,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:22,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627365600] [2024-11-19 21:39:22,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627365600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:22,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:22,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:39:22,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157450838] [2024-11-19 21:39:22,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:22,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:22,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:22,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:22,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:22,991 INFO L87 Difference]: Start difference. First operand 576 states and 936 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:25,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:25,360 INFO L93 Difference]: Finished difference Result 1296 states and 2126 transitions. [2024-11-19 21:39:25,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:39:25,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-19 21:39:25,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:25,365 INFO L225 Difference]: With dead ends: 1296 [2024-11-19 21:39:25,365 INFO L226 Difference]: Without dead ends: 741 [2024-11-19 21:39:25,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:39:25,367 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 748 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:25,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1507 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 21:39:25,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-11-19 21:39:25,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 596. [2024-11-19 21:39:25,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 464 states have (on average 1.6379310344827587) internal successors, (760), 481 states have internal predecessors, (760), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 21:39:25,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 965 transitions. [2024-11-19 21:39:25,413 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 965 transitions. Word has length 68 [2024-11-19 21:39:25,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:25,413 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 965 transitions. [2024-11-19 21:39:25,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:25,414 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 965 transitions. [2024-11-19 21:39:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 21:39:25,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:25,415 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:25,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 21:39:25,415 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:25,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:25,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1678469552, now seen corresponding path program 1 times [2024-11-19 21:39:25,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:25,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527175782] [2024-11-19 21:39:25,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:25,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:25,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:25,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:25,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:25,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-19 21:39:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:25,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:39:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:25,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:25,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-19 21:39:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:25,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 21:39:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:25,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:25,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:25,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527175782] [2024-11-19 21:39:25,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527175782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:25,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:25,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 21:39:25,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374018339] [2024-11-19 21:39:25,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:25,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 21:39:25,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:25,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 21:39:25,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:39:25,694 INFO L87 Difference]: Start difference. First operand 596 states and 965 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 21:39:29,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:29,665 INFO L93 Difference]: Finished difference Result 1318 states and 2141 transitions. [2024-11-19 21:39:29,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 21:39:29,666 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 69 [2024-11-19 21:39:29,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:29,674 INFO L225 Difference]: With dead ends: 1318 [2024-11-19 21:39:29,674 INFO L226 Difference]: Without dead ends: 788 [2024-11-19 21:39:29,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-11-19 21:39:29,679 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 833 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 4804 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 3995 SdHoareTripleChecker+Invalid, 4914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 4804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:29,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 3995 Invalid, 4914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 4804 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-19 21:39:29,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2024-11-19 21:39:29,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 609. [2024-11-19 21:39:29,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 474 states have (on average 1.6350210970464134) internal successors, (775), 493 states have internal predecessors, (775), 104 states have call successors, (104), 29 states have call predecessors, (104), 30 states have return successors, (105), 100 states have call predecessors, (105), 103 states have call successors, (105) [2024-11-19 21:39:29,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 984 transitions. [2024-11-19 21:39:29,727 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 984 transitions. Word has length 69 [2024-11-19 21:39:29,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:29,728 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 984 transitions. [2024-11-19 21:39:29,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 8 states have internal predecessors, (50), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 21:39:29,728 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 984 transitions. [2024-11-19 21:39:29,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 21:39:29,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:29,729 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:29,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 21:39:29,729 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:29,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:29,730 INFO L85 PathProgramCache]: Analyzing trace with hash 690964433, now seen corresponding path program 1 times [2024-11-19 21:39:29,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:29,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20168140] [2024-11-19 21:39:29,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:29,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:29,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:29,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:29,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:29,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-19 21:39:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:29,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:39:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:29,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:29,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-19 21:39:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:29,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 21:39:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:29,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:29,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20168140] [2024-11-19 21:39:29,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20168140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:29,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:29,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:39:29,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861783594] [2024-11-19 21:39:29,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:29,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:29,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:29,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:29,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:29,910 INFO L87 Difference]: Start difference. First operand 609 states and 984 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:32,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:32,085 INFO L93 Difference]: Finished difference Result 1311 states and 2126 transitions. [2024-11-19 21:39:32,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:39:32,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-11-19 21:39:32,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:32,089 INFO L225 Difference]: With dead ends: 1311 [2024-11-19 21:39:32,089 INFO L226 Difference]: Without dead ends: 763 [2024-11-19 21:39:32,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 21:39:32,092 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 736 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:32,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 1514 Invalid, 2056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 21:39:32,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-19 21:39:32,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 609. [2024-11-19 21:39:32,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 474 states have (on average 1.6244725738396624) internal successors, (770), 493 states have internal predecessors, (770), 104 states have call successors, (104), 29 states have call predecessors, (104), 30 states have return successors, (105), 100 states have call predecessors, (105), 103 states have call successors, (105) [2024-11-19 21:39:32,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 979 transitions. [2024-11-19 21:39:32,138 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 979 transitions. Word has length 69 [2024-11-19 21:39:32,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:32,138 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 979 transitions. [2024-11-19 21:39:32,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:32,139 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 979 transitions. [2024-11-19 21:39:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-19 21:39:32,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:32,139 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:32,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 21:39:32,140 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:32,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:32,140 INFO L85 PathProgramCache]: Analyzing trace with hash 140531149, now seen corresponding path program 1 times [2024-11-19 21:39:32,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:32,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263425613] [2024-11-19 21:39:32,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:32,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:32,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:32,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:32,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:32,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 21:39:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:32,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 21:39:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:32,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:32,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-19 21:39:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:32,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 21:39:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:32,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:32,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263425613] [2024-11-19 21:39:32,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263425613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:32,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:32,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:39:32,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792178687] [2024-11-19 21:39:32,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:32,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:32,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:32,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:32,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:32,312 INFO L87 Difference]: Start difference. First operand 609 states and 979 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:34,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:34,615 INFO L93 Difference]: Finished difference Result 1311 states and 2121 transitions. [2024-11-19 21:39:34,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:39:34,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2024-11-19 21:39:34,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:34,624 INFO L225 Difference]: With dead ends: 1311 [2024-11-19 21:39:34,624 INFO L226 Difference]: Without dead ends: 763 [2024-11-19 21:39:34,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 21:39:34,627 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 735 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 1926 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 2036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:34,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 1514 Invalid, 2036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1926 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 21:39:34,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-19 21:39:34,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 609. [2024-11-19 21:39:34,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 474 states have (on average 1.6139240506329113) internal successors, (765), 493 states have internal predecessors, (765), 104 states have call successors, (104), 29 states have call predecessors, (104), 30 states have return successors, (105), 100 states have call predecessors, (105), 103 states have call successors, (105) [2024-11-19 21:39:34,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 974 transitions. [2024-11-19 21:39:34,696 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 974 transitions. Word has length 70 [2024-11-19 21:39:34,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:34,696 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 974 transitions. [2024-11-19 21:39:34,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:34,696 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 974 transitions. [2024-11-19 21:39:34,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-19 21:39:34,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:34,697 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:34,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 21:39:34,697 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:34,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:34,698 INFO L85 PathProgramCache]: Analyzing trace with hash 343200726, now seen corresponding path program 1 times [2024-11-19 21:39:34,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:34,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387015549] [2024-11-19 21:39:34,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:34,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:34,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:34,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:34,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:34,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:39:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:34,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:39:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:34,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:34,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 21:39:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:34,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 21:39:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:34,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:34,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:34,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387015549] [2024-11-19 21:39:34,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387015549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:34,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:34,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:39:34,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776327601] [2024-11-19 21:39:34,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:34,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:34,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:34,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:34,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:34,890 INFO L87 Difference]: Start difference. First operand 609 states and 974 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:37,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:37,032 INFO L93 Difference]: Finished difference Result 1311 states and 2116 transitions. [2024-11-19 21:39:37,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:39:37,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2024-11-19 21:39:37,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:37,037 INFO L225 Difference]: With dead ends: 1311 [2024-11-19 21:39:37,037 INFO L226 Difference]: Without dead ends: 763 [2024-11-19 21:39:37,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 21:39:37,039 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 734 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:37,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 1511 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 21:39:37,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-19 21:39:37,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 609. [2024-11-19 21:39:37,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 474 states have (on average 1.6033755274261603) internal successors, (760), 493 states have internal predecessors, (760), 104 states have call successors, (104), 29 states have call predecessors, (104), 30 states have return successors, (105), 100 states have call predecessors, (105), 103 states have call successors, (105) [2024-11-19 21:39:37,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 969 transitions. [2024-11-19 21:39:37,092 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 969 transitions. Word has length 71 [2024-11-19 21:39:37,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:37,092 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 969 transitions. [2024-11-19 21:39:37,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:37,093 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 969 transitions. [2024-11-19 21:39:37,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-19 21:39:37,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:37,093 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:37,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 21:39:37,094 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:37,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:37,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1658772023, now seen corresponding path program 1 times [2024-11-19 21:39:37,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:37,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732195228] [2024-11-19 21:39:37,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:37,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:37,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:37,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:37,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:37,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:39:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:37,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:39:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:37,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:37,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 21:39:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:37,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 21:39:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:37,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:37,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:37,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732195228] [2024-11-19 21:39:37,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732195228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:37,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:37,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 21:39:37,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502436737] [2024-11-19 21:39:37,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:37,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 21:39:37,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:37,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 21:39:37,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 21:39:37,307 INFO L87 Difference]: Start difference. First operand 609 states and 969 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 21:39:40,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:40,215 INFO L93 Difference]: Finished difference Result 1294 states and 2084 transitions. [2024-11-19 21:39:40,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 21:39:40,216 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2024-11-19 21:39:40,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:40,222 INFO L225 Difference]: With dead ends: 1294 [2024-11-19 21:39:40,222 INFO L226 Difference]: Without dead ends: 758 [2024-11-19 21:39:40,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:39:40,225 INFO L432 NwaCegarLoop]: 496 mSDtfsCounter, 720 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 3614 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 3723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 3614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:40,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 2903 Invalid, 3723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 3614 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-19 21:39:40,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-19 21:39:40,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 613. [2024-11-19 21:39:40,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 478 states have (on average 1.596234309623431) internal successors, (763), 497 states have internal predecessors, (763), 104 states have call successors, (104), 29 states have call predecessors, (104), 30 states have return successors, (105), 100 states have call predecessors, (105), 103 states have call successors, (105) [2024-11-19 21:39:40,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 972 transitions. [2024-11-19 21:39:40,309 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 972 transitions. Word has length 71 [2024-11-19 21:39:40,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:40,309 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 972 transitions. [2024-11-19 21:39:40,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 21:39:40,310 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 972 transitions. [2024-11-19 21:39:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-19 21:39:40,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:40,311 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:40,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 21:39:40,311 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:40,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:40,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1877744782, now seen corresponding path program 1 times [2024-11-19 21:39:40,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:40,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174634264] [2024-11-19 21:39:40,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:40,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:40,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:40,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:40,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:40,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-19 21:39:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:40,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-19 21:39:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:40,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:40,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 21:39:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:40,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:39:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:40,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:40,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:40,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174634264] [2024-11-19 21:39:40,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174634264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:40,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:40,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:39:40,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769607366] [2024-11-19 21:39:40,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:40,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:40,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:40,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:40,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:40,529 INFO L87 Difference]: Start difference. First operand 613 states and 972 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:42,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:42,624 INFO L93 Difference]: Finished difference Result 1321 states and 2116 transitions. [2024-11-19 21:39:42,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:39:42,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-11-19 21:39:42,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:42,628 INFO L225 Difference]: With dead ends: 1321 [2024-11-19 21:39:42,628 INFO L226 Difference]: Without dead ends: 769 [2024-11-19 21:39:42,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 21:39:42,630 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 732 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:42,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 1511 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 21:39:42,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-11-19 21:39:42,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 613. [2024-11-19 21:39:42,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 478 states have (on average 1.5857740585774058) internal successors, (758), 497 states have internal predecessors, (758), 104 states have call successors, (104), 29 states have call predecessors, (104), 30 states have return successors, (105), 100 states have call predecessors, (105), 103 states have call successors, (105) [2024-11-19 21:39:42,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 967 transitions. [2024-11-19 21:39:42,675 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 967 transitions. Word has length 72 [2024-11-19 21:39:42,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:42,676 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 967 transitions. [2024-11-19 21:39:42,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:42,676 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 967 transitions. [2024-11-19 21:39:42,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-19 21:39:42,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:42,677 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:42,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 21:39:42,677 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:42,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:42,677 INFO L85 PathProgramCache]: Analyzing trace with hash 517426479, now seen corresponding path program 1 times [2024-11-19 21:39:42,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:42,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710644067] [2024-11-19 21:39:42,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:42,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:42,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:42,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:42,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:42,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-19 21:39:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:42,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-19 21:39:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:42,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:42,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 21:39:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:42,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 21:39:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:42,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:42,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710644067] [2024-11-19 21:39:42,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710644067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:42,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:42,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 21:39:42,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43412371] [2024-11-19 21:39:42,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:42,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 21:39:42,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:42,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 21:39:42,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 21:39:42,869 INFO L87 Difference]: Start difference. First operand 613 states and 967 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 21:39:45,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:45,820 INFO L93 Difference]: Finished difference Result 1296 states and 2075 transitions. [2024-11-19 21:39:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 21:39:45,820 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2024-11-19 21:39:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:45,824 INFO L225 Difference]: With dead ends: 1296 [2024-11-19 21:39:45,824 INFO L226 Difference]: Without dead ends: 761 [2024-11-19 21:39:45,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:39:45,826 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 716 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 3601 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 3711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 3601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:45,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 2876 Invalid, 3711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [110 Valid, 3601 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-19 21:39:45,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-19 21:39:45,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 616. [2024-11-19 21:39:45,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 481 states have (on average 1.5800415800415801) internal successors, (760), 500 states have internal predecessors, (760), 104 states have call successors, (104), 29 states have call predecessors, (104), 30 states have return successors, (105), 100 states have call predecessors, (105), 103 states have call successors, (105) [2024-11-19 21:39:45,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 969 transitions. [2024-11-19 21:39:45,871 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 969 transitions. Word has length 72 [2024-11-19 21:39:45,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:45,871 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 969 transitions. [2024-11-19 21:39:45,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 21:39:45,871 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 969 transitions. [2024-11-19 21:39:45,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-19 21:39:45,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:45,872 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:45,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 21:39:45,872 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:45,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:45,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1921346597, now seen corresponding path program 1 times [2024-11-19 21:39:45,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:45,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974995439] [2024-11-19 21:39:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:45,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:45,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:46,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:46,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:46,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-19 21:39:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:46,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 21:39:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:46,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:46,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-19 21:39:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:46,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-19 21:39:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:46,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:46,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:46,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974995439] [2024-11-19 21:39:46,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974995439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:46,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:46,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 21:39:46,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559401093] [2024-11-19 21:39:46,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:46,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:46,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:46,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:46,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:46,033 INFO L87 Difference]: Start difference. First operand 616 states and 969 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:48,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:48,226 INFO L93 Difference]: Finished difference Result 1348 states and 2140 transitions. [2024-11-19 21:39:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:39:48,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2024-11-19 21:39:48,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:48,231 INFO L225 Difference]: With dead ends: 1348 [2024-11-19 21:39:48,231 INFO L226 Difference]: Without dead ends: 704 [2024-11-19 21:39:48,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 21:39:48,234 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 675 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:48,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 1599 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1757 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-19 21:39:48,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2024-11-19 21:39:48,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 574. [2024-11-19 21:39:48,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 442 states have (on average 1.590497737556561) internal successors, (703), 459 states have internal predecessors, (703), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-19 21:39:48,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 908 transitions. [2024-11-19 21:39:48,283 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 908 transitions. Word has length 73 [2024-11-19 21:39:48,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:48,284 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 908 transitions. [2024-11-19 21:39:48,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-19 21:39:48,284 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 908 transitions. [2024-11-19 21:39:48,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-19 21:39:48,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:48,285 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:39:48,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 21:39:48,285 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:48,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:48,286 INFO L85 PathProgramCache]: Analyzing trace with hash -394900208, now seen corresponding path program 1 times [2024-11-19 21:39:48,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:48,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800616630] [2024-11-19 21:39:48,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:48,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:48,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:48,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:48,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:48,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:39:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:48,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-19 21:39:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:48,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:48,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 21:39:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:48,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-19 21:39:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 21:39:48,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:48,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800616630] [2024-11-19 21:39:48,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800616630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:48,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:39:48,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 21:39:48,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308838438] [2024-11-19 21:39:48,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:48,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 21:39:48,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:48,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 21:39:48,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 21:39:48,582 INFO L87 Difference]: Start difference. First operand 574 states and 908 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 21:39:51,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:51,540 INFO L93 Difference]: Finished difference Result 1851 states and 3003 transitions. [2024-11-19 21:39:51,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 21:39:51,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2024-11-19 21:39:51,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:51,546 INFO L225 Difference]: With dead ends: 1851 [2024-11-19 21:39:51,546 INFO L226 Difference]: Without dead ends: 1320 [2024-11-19 21:39:51,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 21:39:51,548 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 1934 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:51,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 1075 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-19 21:39:51,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-19 21:39:51,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1029. [2024-11-19 21:39:51,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 797 states have (on average 1.6072772898368883) internal successors, (1281), 823 states have internal predecessors, (1281), 182 states have call successors, (182), 51 states have call predecessors, (182), 49 states have return successors, (187), 169 states have call predecessors, (187), 180 states have call successors, (187) [2024-11-19 21:39:51,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1650 transitions. [2024-11-19 21:39:51,642 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1650 transitions. Word has length 75 [2024-11-19 21:39:51,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:51,642 INFO L471 AbstractCegarLoop]: Abstraction has 1029 states and 1650 transitions. [2024-11-19 21:39:51,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-19 21:39:51,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1650 transitions. [2024-11-19 21:39:51,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-19 21:39:51,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:51,646 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 21:39:51,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 21:39:51,646 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:51,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:51,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1266100917, now seen corresponding path program 1 times [2024-11-19 21:39:51,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:51,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126179276] [2024-11-19 21:39:51,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:51,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:51,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:51,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:51,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:51,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:39:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 21:39:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:39:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:39:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:52,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:39:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-19 21:39:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-19 21:39:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 21:39:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 21:39:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,242 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-19 21:39:52,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:52,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126179276] [2024-11-19 21:39:52,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126179276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:39:52,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438524893] [2024-11-19 21:39:52,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:52,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:39:52,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:39:52,250 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) [2024-11-19 21:39:52,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 21:39:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:52,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:39:52,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:39:52,618 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 21:39:52,618 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:39:52,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438524893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:52,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:39:52,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2024-11-19 21:39:52,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858789159] [2024-11-19 21:39:52,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:52,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:52,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:52,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:52,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-19 21:39:52,620 INFO L87 Difference]: Start difference. First operand 1029 states and 1650 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:39:53,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:53,104 INFO L93 Difference]: Finished difference Result 2031 states and 3336 transitions. [2024-11-19 21:39:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:39:53,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 130 [2024-11-19 21:39:53,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:53,110 INFO L225 Difference]: With dead ends: 2031 [2024-11-19 21:39:53,110 INFO L226 Difference]: Without dead ends: 1045 [2024-11-19 21:39:53,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-19 21:39:53,114 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 840 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:53,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 2191 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 21:39:53,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-11-19 21:39:53,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2024-11-19 21:39:53,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 811 states have (on average 1.6091245376078915) internal successors, (1305), 837 states have internal predecessors, (1305), 182 states have call successors, (182), 53 states have call predecessors, (182), 51 states have return successors, (189), 169 states have call predecessors, (189), 180 states have call successors, (189) [2024-11-19 21:39:53,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1676 transitions. [2024-11-19 21:39:53,212 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1676 transitions. Word has length 130 [2024-11-19 21:39:53,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:53,213 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1676 transitions. [2024-11-19 21:39:53,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:39:53,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1676 transitions. [2024-11-19 21:39:53,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-19 21:39:53,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:53,216 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 21:39:53,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 21:39:53,416 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,SelfDestructingSolverStorable15 [2024-11-19 21:39:53,417 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:53,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:53,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1230438401, now seen corresponding path program 1 times [2024-11-19 21:39:53,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:53,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083203470] [2024-11-19 21:39:53,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:53,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:53,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:53,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:53,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:53,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:39:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 21:39:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:39:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 21:39:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:39:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 21:39:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 21:39:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 21:39:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-19 21:39:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 21:39:54,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:54,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083203470] [2024-11-19 21:39:54,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083203470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:39:54,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245022944] [2024-11-19 21:39:54,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:54,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:39:54,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:39:54,132 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) [2024-11-19 21:39:54,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 21:39:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:54,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 21:39:54,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:39:54,466 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-19 21:39:54,467 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:39:54,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245022944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:54,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:39:54,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-19 21:39:54,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877071536] [2024-11-19 21:39:54,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:54,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 21:39:54,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:54,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 21:39:54,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:39:54,469 INFO L87 Difference]: Start difference. First operand 1045 states and 1676 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 21:39:54,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:54,943 INFO L93 Difference]: Finished difference Result 2656 states and 4265 transitions. [2024-11-19 21:39:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:39:54,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 132 [2024-11-19 21:39:54,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:54,953 INFO L225 Difference]: With dead ends: 2656 [2024-11-19 21:39:54,954 INFO L226 Difference]: Without dead ends: 1654 [2024-11-19 21:39:54,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-19 21:39:54,960 INFO L432 NwaCegarLoop]: 1143 mSDtfsCounter, 839 mSDsluCounter, 3400 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 4543 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:54,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 4543 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 21:39:54,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2024-11-19 21:39:55,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1652. [2024-11-19 21:39:55,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1652 states, 1279 states have (on average 1.5793588741204065) internal successors, (2020), 1308 states have internal predecessors, (2020), 285 states have call successors, (285), 91 states have call predecessors, (285), 87 states have return successors, (319), 268 states have call predecessors, (319), 281 states have call successors, (319) [2024-11-19 21:39:55,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1652 states to 1652 states and 2624 transitions. [2024-11-19 21:39:55,155 INFO L78 Accepts]: Start accepts. Automaton has 1652 states and 2624 transitions. Word has length 132 [2024-11-19 21:39:55,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:55,155 INFO L471 AbstractCegarLoop]: Abstraction has 1652 states and 2624 transitions. [2024-11-19 21:39:55,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 21:39:55,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1652 states and 2624 transitions. [2024-11-19 21:39:55,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-19 21:39:55,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:55,161 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 21:39:55,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 21:39:55,363 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,SelfDestructingSolverStorable16 [2024-11-19 21:39:55,364 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:55,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:55,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1765652466, now seen corresponding path program 1 times [2024-11-19 21:39:55,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:55,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913039776] [2024-11-19 21:39:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:55,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:39:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 21:39:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:39:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 21:39:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:39:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 21:39:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-19 21:39:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 21:39:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-19 21:39:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:55,966 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 21:39:55,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:55,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913039776] [2024-11-19 21:39:55,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913039776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:39:55,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471790891] [2024-11-19 21:39:55,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:55,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:39:55,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:39:55,969 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) [2024-11-19 21:39:55,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 21:39:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:56,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:39:56,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:39:56,291 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-19 21:39:56,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:39:56,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471790891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:56,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:39:56,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2024-11-19 21:39:56,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021748809] [2024-11-19 21:39:56,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:56,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:56,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:56,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:56,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:39:56,294 INFO L87 Difference]: Start difference. First operand 1652 states and 2624 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:39:56,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:56,918 INFO L93 Difference]: Finished difference Result 3293 states and 5375 transitions. [2024-11-19 21:39:56,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:39:56,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2024-11-19 21:39:56,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:56,926 INFO L225 Difference]: With dead ends: 3293 [2024-11-19 21:39:56,926 INFO L226 Difference]: Without dead ends: 1684 [2024-11-19 21:39:56,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:39:56,931 INFO L432 NwaCegarLoop]: 862 mSDtfsCounter, 834 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:56,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 2188 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 21:39:56,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2024-11-19 21:39:57,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2024-11-19 21:39:57,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1307 states have (on average 1.582249426166794) internal successors, (2068), 1336 states have internal predecessors, (2068), 285 states have call successors, (285), 95 states have call predecessors, (285), 91 states have return successors, (323), 268 states have call predecessors, (323), 281 states have call successors, (323) [2024-11-19 21:39:57,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2676 transitions. [2024-11-19 21:39:57,082 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2676 transitions. Word has length 133 [2024-11-19 21:39:57,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:57,083 INFO L471 AbstractCegarLoop]: Abstraction has 1684 states and 2676 transitions. [2024-11-19 21:39:57,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:39:57,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2676 transitions. [2024-11-19 21:39:57,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-19 21:39:57,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:57,086 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 21:39:57,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 21:39:57,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 21:39:57,288 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:57,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:57,288 INFO L85 PathProgramCache]: Analyzing trace with hash 503871333, now seen corresponding path program 1 times [2024-11-19 21:39:57,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:57,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526647780] [2024-11-19 21:39:57,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:57,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:39:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 21:39:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 21:39:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 21:39:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 21:39:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-19 21:39:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-19 21:39:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-19 21:39:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-19 21:39:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,770 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-19 21:39:57,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:57,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526647780] [2024-11-19 21:39:57,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526647780] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:39:57,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487555092] [2024-11-19 21:39:57,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:57,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:39:57,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:39:57,773 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) [2024-11-19 21:39:57,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 21:39:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:57,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:39:58,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:39:58,094 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-19 21:39:58,095 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:39:58,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487555092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:39:58,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:39:58,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2024-11-19 21:39:58,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764149563] [2024-11-19 21:39:58,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:39:58,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:39:58,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:39:58,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:39:58,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:39:58,096 INFO L87 Difference]: Start difference. First operand 1684 states and 2676 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:39:58,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:39:58,725 INFO L93 Difference]: Finished difference Result 3357 states and 5467 transitions. [2024-11-19 21:39:58,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:39:58,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2024-11-19 21:39:58,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:39:58,733 INFO L225 Difference]: With dead ends: 3357 [2024-11-19 21:39:58,734 INFO L226 Difference]: Without dead ends: 1716 [2024-11-19 21:39:58,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:39:58,741 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 815 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2185 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:39:58,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 2185 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 21:39:58,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-11-19 21:39:58,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1716. [2024-11-19 21:39:58,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1335 states have (on average 1.5850187265917604) internal successors, (2116), 1364 states have internal predecessors, (2116), 285 states have call successors, (285), 99 states have call predecessors, (285), 95 states have return successors, (327), 268 states have call predecessors, (327), 281 states have call successors, (327) [2024-11-19 21:39:58,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 2728 transitions. [2024-11-19 21:39:58,903 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 2728 transitions. Word has length 136 [2024-11-19 21:39:58,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:39:58,905 INFO L471 AbstractCegarLoop]: Abstraction has 1716 states and 2728 transitions. [2024-11-19 21:39:58,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:39:58,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 2728 transitions. [2024-11-19 21:39:58,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 21:39:58,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:39:58,913 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 21:39:58,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 21:39:59,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:39:59,114 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:39:59,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:39:59,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1020072542, now seen corresponding path program 1 times [2024-11-19 21:39:59,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:39:59,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964927314] [2024-11-19 21:39:59,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:59,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:39:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:39:59,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:39:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:39:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 21:39:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-19 21:39:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:39:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-19 21:39:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:39:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-19 21:39:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:39:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-19 21:39:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-19 21:39:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,649 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 21:39:59,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:39:59,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964927314] [2024-11-19 21:39:59,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964927314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:39:59,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630281161] [2024-11-19 21:39:59,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:39:59,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:39:59,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:39:59,652 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) [2024-11-19 21:39:59,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 21:39:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:39:59,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:39:59,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:40:00,013 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-19 21:40:00,013 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:40:00,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630281161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:40:00,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:40:00,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2024-11-19 21:40:00,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748893265] [2024-11-19 21:40:00,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:40:00,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:40:00,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:40:00,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:40:00,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:40:00,015 INFO L87 Difference]: Start difference. First operand 1716 states and 2728 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:40:00,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:40:00,693 INFO L93 Difference]: Finished difference Result 3421 states and 5559 transitions. [2024-11-19 21:40:00,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:40:00,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2024-11-19 21:40:00,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:40:00,702 INFO L225 Difference]: With dead ends: 3421 [2024-11-19 21:40:00,702 INFO L226 Difference]: Without dead ends: 1748 [2024-11-19 21:40:00,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-19 21:40:00,709 INFO L432 NwaCegarLoop]: 856 mSDtfsCounter, 806 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:40:00,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 2182 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 21:40:00,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2024-11-19 21:40:01,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1748. [2024-11-19 21:40:01,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1363 states have (on average 1.5876742479823918) internal successors, (2164), 1392 states have internal predecessors, (2164), 285 states have call successors, (285), 103 states have call predecessors, (285), 99 states have return successors, (331), 268 states have call predecessors, (331), 281 states have call successors, (331) [2024-11-19 21:40:01,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2780 transitions. [2024-11-19 21:40:01,049 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2780 transitions. Word has length 139 [2024-11-19 21:40:01,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:40:01,051 INFO L471 AbstractCegarLoop]: Abstraction has 1748 states and 2780 transitions. [2024-11-19 21:40:01,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 21:40:01,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2780 transitions. [2024-11-19 21:40:01,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 21:40:01,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:40:01,059 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 21:40:01,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 21:40:01,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:40:01,260 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:40:01,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:40:01,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1099977535, now seen corresponding path program 1 times [2024-11-19 21:40:01,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:40:01,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124015227] [2024-11-19 21:40:01,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:40:01,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:40:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:40:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:40:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:40:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 21:40:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:40:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:40:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:40:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:40:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-19 21:40:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-19 21:40:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-19 21:40:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:01,981 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-19 21:40:01,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:40:01,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124015227] [2024-11-19 21:40:01,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124015227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:40:01,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846821450] [2024-11-19 21:40:01,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:40:01,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:40:01,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:40:01,984 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) [2024-11-19 21:40:01,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 21:40:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:02,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 21:40:02,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:40:02,344 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 21:40:02,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:40:02,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846821450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:40:02,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:40:02,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2024-11-19 21:40:02,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818658834] [2024-11-19 21:40:02,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:40:02,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 21:40:02,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:40:02,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 21:40:02,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-11-19 21:40:02,347 INFO L87 Difference]: Start difference. First operand 1748 states and 2780 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-19 21:40:03,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:40:03,888 INFO L93 Difference]: Finished difference Result 3548 states and 5646 transitions. [2024-11-19 21:40:03,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:40:03,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 142 [2024-11-19 21:40:03,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:40:03,897 INFO L225 Difference]: With dead ends: 3548 [2024-11-19 21:40:03,897 INFO L226 Difference]: Without dead ends: 1846 [2024-11-19 21:40:03,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-19 21:40:03,903 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 1489 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:40:03,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 1115 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 21:40:03,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2024-11-19 21:40:04,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1708. [2024-11-19 21:40:04,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1708 states, 1279 states have (on average 1.5496481626270524) internal successors, (1982), 1328 states have internal predecessors, (1982), 331 states have call successors, (331), 93 states have call predecessors, (331), 97 states have return successors, (377), 312 states have call predecessors, (377), 327 states have call successors, (377) [2024-11-19 21:40:04,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2690 transitions. [2024-11-19 21:40:04,110 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2690 transitions. Word has length 142 [2024-11-19 21:40:04,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:40:04,111 INFO L471 AbstractCegarLoop]: Abstraction has 1708 states and 2690 transitions. [2024-11-19 21:40:04,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2024-11-19 21:40:04,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2690 transitions. [2024-11-19 21:40:04,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-19 21:40:04,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:40:04,114 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 21:40:04,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 21:40:04,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:40:04,315 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:40:04,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:40:04,315 INFO L85 PathProgramCache]: Analyzing trace with hash -2053917693, now seen corresponding path program 1 times [2024-11-19 21:40:04,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:40:04,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991919308] [2024-11-19 21:40:04,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:40:04,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:40:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:40:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:40:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:40:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 21:40:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:40:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:40:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:40:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:40:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-19 21:40:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-19 21:40:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-19 21:40:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:04,912 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-19 21:40:04,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:40:04,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991919308] [2024-11-19 21:40:04,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991919308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:40:04,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945734403] [2024-11-19 21:40:04,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:40:04,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:40:04,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:40:04,915 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) [2024-11-19 21:40:04,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 21:40:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:05,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 21:40:05,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:40:05,261 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 21:40:05,261 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:40:05,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945734403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:40:05,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:40:05,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2024-11-19 21:40:05,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088135913] [2024-11-19 21:40:05,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:40:05,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:40:05,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:40:05,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:40:05,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-11-19 21:40:05,264 INFO L87 Difference]: Start difference. First operand 1708 states and 2690 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-19 21:40:09,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:40:09,373 INFO L93 Difference]: Finished difference Result 7289 states and 11800 transitions. [2024-11-19 21:40:09,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 21:40:09,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 142 [2024-11-19 21:40:09,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:40:09,433 INFO L225 Difference]: With dead ends: 7289 [2024-11-19 21:40:09,436 INFO L226 Difference]: Without dead ends: 5626 [2024-11-19 21:40:09,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=874, Unknown=0, NotChecked=0, Total=992 [2024-11-19 21:40:09,456 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 2821 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 6124 mSolverCounterSat, 731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2925 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 6855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 6124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-19 21:40:09,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2925 Valid, 2084 Invalid, 6855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [731 Valid, 6124 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-19 21:40:09,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5626 states. [2024-11-19 21:40:10,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5626 to 5210. [2024-11-19 21:40:10,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5210 states, 3883 states have (on average 1.5464846767962914) internal successors, (6005), 4037 states have internal predecessors, (6005), 1016 states have call successors, (1016), 261 states have call predecessors, (1016), 310 states have return successors, (1360), 988 states have call predecessors, (1360), 1008 states have call successors, (1360) [2024-11-19 21:40:10,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 5210 states and 8381 transitions. [2024-11-19 21:40:10,427 INFO L78 Accepts]: Start accepts. Automaton has 5210 states and 8381 transitions. Word has length 142 [2024-11-19 21:40:10,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:40:10,427 INFO L471 AbstractCegarLoop]: Abstraction has 5210 states and 8381 transitions. [2024-11-19 21:40:10,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-19 21:40:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 5210 states and 8381 transitions. [2024-11-19 21:40:10,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 21:40:10,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:40:10,431 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 21:40:10,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 21:40:10,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:40:10,637 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:40:10,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:40:10,637 INFO L85 PathProgramCache]: Analyzing trace with hash -619933128, now seen corresponding path program 1 times [2024-11-19 21:40:10,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:40:10,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525171365] [2024-11-19 21:40:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:40:10,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:40:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:10,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:40:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:10,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:10,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:40:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:10,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:40:10,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 21:40:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:40:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:40:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:40:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:40:11,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:40:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-19 21:40:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-19 21:40:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-19 21:40:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:11,166 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-11-19 21:40:11,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:40:11,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525171365] [2024-11-19 21:40:11,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525171365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:40:11,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:40:11,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 21:40:11,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797707930] [2024-11-19 21:40:11,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:40:11,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 21:40:11,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:40:11,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 21:40:11,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 21:40:11,169 INFO L87 Difference]: Start difference. First operand 5210 states and 8381 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-19 21:40:26,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:40:26,508 INFO L93 Difference]: Finished difference Result 24750 states and 41583 transitions. [2024-11-19 21:40:26,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-19 21:40:26,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 147 [2024-11-19 21:40:26,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:40:26,610 INFO L225 Difference]: With dead ends: 24750 [2024-11-19 21:40:26,610 INFO L226 Difference]: Without dead ends: 19589 [2024-11-19 21:40:26,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2024-11-19 21:40:26,645 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 5783 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 5085 mSolverCounterSat, 2200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5849 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 7285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2200 IncrementalHoareTripleChecker+Valid, 5085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-19 21:40:26,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5849 Valid, 1995 Invalid, 7285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2200 Valid, 5085 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2024-11-19 21:40:26,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19589 states. [2024-11-19 21:40:28,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19589 to 5274. [2024-11-19 21:40:28,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5274 states, 3929 states have (on average 1.5428862305930262) internal successors, (6062), 4081 states have internal predecessors, (6062), 1031 states have call successors, (1031), 261 states have call predecessors, (1031), 313 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2024-11-19 21:40:28,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5274 states to 5274 states and 8457 transitions. [2024-11-19 21:40:28,252 INFO L78 Accepts]: Start accepts. Automaton has 5274 states and 8457 transitions. Word has length 147 [2024-11-19 21:40:28,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:40:28,254 INFO L471 AbstractCegarLoop]: Abstraction has 5274 states and 8457 transitions. [2024-11-19 21:40:28,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-19 21:40:28,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5274 states and 8457 transitions. [2024-11-19 21:40:28,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-19 21:40:28,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:40:28,256 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 21:40:28,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 21:40:28,256 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:40:28,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:40:28,257 INFO L85 PathProgramCache]: Analyzing trace with hash 39598394, now seen corresponding path program 1 times [2024-11-19 21:40:28,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:40:28,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817009166] [2024-11-19 21:40:28,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:40:28,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:40:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:40:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:40:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:40:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 21:40:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:40:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-19 21:40:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-19 21:40:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 21:40:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-19 21:40:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-19 21:40:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-19 21:40:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-19 21:40:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:28,839 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-19 21:40:28,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:40:28,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817009166] [2024-11-19 21:40:28,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817009166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:40:28,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308977862] [2024-11-19 21:40:28,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:40:28,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:40:28,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:40:28,841 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) [2024-11-19 21:40:28,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 21:40:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:29,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 21:40:29,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:40:29,200 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 21:40:29,201 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:40:29,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308977862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:40:29,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:40:29,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2024-11-19 21:40:29,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506671193] [2024-11-19 21:40:29,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:40:29,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 21:40:29,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:40:29,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 21:40:29,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-19 21:40:29,202 INFO L87 Difference]: Start difference. First operand 5274 states and 8457 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:40:30,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:40:30,352 INFO L93 Difference]: Finished difference Result 5276 states and 8458 transitions. [2024-11-19 21:40:30,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:40:30,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2024-11-19 21:40:30,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:40:30,378 INFO L225 Difference]: With dead ends: 5276 [2024-11-19 21:40:30,379 INFO L226 Difference]: Without dead ends: 5274 [2024-11-19 21:40:30,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-11-19 21:40:30,383 INFO L432 NwaCegarLoop]: 984 mSDtfsCounter, 392 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 21:40:30,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 4460 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 21:40:30,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5274 states. [2024-11-19 21:40:31,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5274 to 5274. [2024-11-19 21:40:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5274 states, 3929 states have (on average 1.536014252990583) internal successors, (6035), 4081 states have internal predecessors, (6035), 1031 states have call successors, (1031), 261 states have call predecessors, (1031), 313 states have return successors, (1364), 1003 states have call predecessors, (1364), 1023 states have call successors, (1364) [2024-11-19 21:40:31,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5274 states to 5274 states and 8430 transitions. [2024-11-19 21:40:31,386 INFO L78 Accepts]: Start accepts. Automaton has 5274 states and 8430 transitions. Word has length 147 [2024-11-19 21:40:31,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:40:31,386 INFO L471 AbstractCegarLoop]: Abstraction has 5274 states and 8430 transitions. [2024-11-19 21:40:31,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-19 21:40:31,387 INFO L276 IsEmpty]: Start isEmpty. Operand 5274 states and 8430 transitions. [2024-11-19 21:40:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-19 21:40:31,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:40:31,390 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:40:31,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 21:40:31,594 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,SelfDestructingSolverStorable23 [2024-11-19 21:40:31,595 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:40:31,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:40:31,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1501906226, now seen corresponding path program 1 times [2024-11-19 21:40:31,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:40:31,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057408313] [2024-11-19 21:40:31,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:40:31,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:40:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:31,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:40:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:31,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:40:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:31,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:40:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:40:31,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-19 21:40:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat