./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 13:57:44,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 13:57:44,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 13:57:44,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 13:57:44,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 13:57:44,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 13:57:44,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 13:57:44,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 13:57:44,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 13:57:44,799 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 13:57:44,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 13:57:44,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 13:57:44,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 13:57:44,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 13:57:44,803 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 13:57:44,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 13:57:44,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 13:57:44,804 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 13:57:44,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 13:57:44,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 13:57:44,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 13:57:44,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 13:57:44,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 13:57:44,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 13:57:44,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 13:57:44,810 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 13:57:44,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 13:57:44,810 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 13:57:44,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 13:57:44,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 13:57:44,811 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 13:57:44,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 13:57:44,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 13:57:44,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 13:57:44,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 13:57:44,812 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 13:57:44,812 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 13:57:44,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 13:57:44,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 13:57:44,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 13:57:44,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 13:57:44,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 13:57:44,816 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ead0301c8481fccc00f115bae086423ed9e315d4392b2a0732a4d381346437b [2024-11-18 13:57:45,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 13:57:45,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 13:57:45,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 13:57:45,137 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 13:57:45,138 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 13:57:45,139 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c [2024-11-18 13:57:46,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 13:57:46,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 13:57:46,968 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product32.cil.c [2024-11-18 13:57:46,992 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27b489e5f/338dffb18fa346eaac47e096d9d1e375/FLAG3e2e10a59 [2024-11-18 13:57:47,198 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27b489e5f/338dffb18fa346eaac47e096d9d1e375 [2024-11-18 13:57:47,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 13:57:47,201 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 13:57:47,202 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 13:57:47,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 13:57:47,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 13:57:47,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:47,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1b4807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47, skipping insertion in model container [2024-11-18 13:57:47,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:47,278 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 13:57:47,815 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] [2024-11-18 13:57:47,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 13:57:47,834 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 13:57:47,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2024-11-18 13:57:47,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [169] [2024-11-18 13:57:47,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [187] [2024-11-18 13:57:47,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] [2024-11-18 13:57:47,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [911] [2024-11-18 13:57:47,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [946] [2024-11-18 13:57:47,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1042] [2024-11-18 13:57:47,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1709] [2024-11-18 13:57:47,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3370] [2024-11-18 13:57:47,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [3379] [2024-11-18 13:57:47,948 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] [2024-11-18 13:57:47,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 13:57:47,976 INFO L204 MainTranslator]: Completed translation [2024-11-18 13:57:47,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47 WrapperNode [2024-11-18 13:57:47,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 13:57:47,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 13:57:47,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 13:57:47,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 13:57:47,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,007 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,062 INFO L138 Inliner]: procedures = 96, calls = 348, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 906 [2024-11-18 13:57:48,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 13:57:48,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 13:57:48,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 13:57:48,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 13:57:48,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,135 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]. [2024-11-18 13:57:48,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,137 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 13:57:48,200 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 13:57:48,200 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 13:57:48,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 13:57:48,201 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (1/1) ... [2024-11-18 13:57:48,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 13:57:48,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:48,256 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) [2024-11-18 13:57:48,262 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 [2024-11-18 13:57:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 13:57:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-18 13:57:48,308 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-18 13:57:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-18 13:57:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-18 13:57:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-18 13:57:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-18 13:57:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-18 13:57:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-18 13:57:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-18 13:57:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-18 13:57:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-18 13:57:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-18 13:57:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-18 13:57:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-18 13:57:48,311 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-18 13:57:48,311 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-18 13:57:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-11-18 13:57:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-11-18 13:57:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 13:57:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 13:57:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 13:57:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 13:57:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-18 13:57:48,312 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-18 13:57:48,312 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-18 13:57:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-18 13:57:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-18 13:57:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-18 13:57:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-18 13:57:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-18 13:57:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-18 13:57:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-18 13:57:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-18 13:57:48,313 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-18 13:57:48,313 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-18 13:57:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-18 13:57:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-18 13:57:48,314 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-18 13:57:48,314 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-18 13:57:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-18 13:57:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-18 13:57:48,316 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-18 13:57:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 13:57:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 13:57:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 13:57:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 13:57:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 13:57:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 13:57:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 13:57:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 13:57:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 13:57:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 13:57:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 13:57:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 13:57:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 13:57:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 13:57:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 13:57:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 13:57:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 13:57:48,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 13:57:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 13:57:48,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-18 13:57:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-18 13:57:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-18 13:57:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-18 13:57:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-18 13:57:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-18 13:57:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-18 13:57:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-18 13:57:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-18 13:57:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 13:57:48,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 13:57:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-18 13:57:48,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-18 13:57:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-11-18 13:57:48,324 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-11-18 13:57:48,569 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 13:57:48,573 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 13:57:49,806 INFO L? ?]: Removed 475 outVars from TransFormulas that were not future-live. [2024-11-18 13:57:49,806 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 13:57:49,848 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 13:57:49,848 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 13:57:49,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:57:49 BoogieIcfgContainer [2024-11-18 13:57:49,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 13:57:49,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 13:57:49,854 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 13:57:49,858 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 13:57:49,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:57:47" (1/3) ... [2024-11-18 13:57:49,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78474c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:57:49, skipping insertion in model container [2024-11-18 13:57:49,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:47" (2/3) ... [2024-11-18 13:57:49,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78474c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:57:49, skipping insertion in model container [2024-11-18 13:57:49,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:57:49" (3/3) ... [2024-11-18 13:57:49,861 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product32.cil.c [2024-11-18 13:57:49,874 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 13:57:49,874 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 13:57:49,967 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 13:57:49,976 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;@8113319, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 13:57:49,976 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 13:57:49,986 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) [2024-11-18 13:57:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-18 13:57:50,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:50,004 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] [2024-11-18 13:57:50,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:50,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:50,011 INFO L85 PathProgramCache]: Analyzing trace with hash 572434695, now seen corresponding path program 1 times [2024-11-18 13:57:50,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:50,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476097083] [2024-11-18 13:57:50,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:50,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:50,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:50,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:50,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476097083] [2024-11-18 13:57:50,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476097083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:50,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:50,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:50,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802448226] [2024-11-18 13:57:50,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:50,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:50,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:50,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:50,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:50,631 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 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:50,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:50,856 INFO L93 Difference]: Finished difference Result 1155 states and 1904 transitions. [2024-11-18 13:57:50,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:57:50,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 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 [2024-11-18 13:57:50,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:50,882 INFO L225 Difference]: With dead ends: 1155 [2024-11-18 13:57:50,883 INFO L226 Difference]: Without dead ends: 576 [2024-11-18 13:57:50,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 13:57:50,900 INFO L432 NwaCegarLoop]: 935 mSDtfsCounter, 6 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2799 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:50,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2799 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:50,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-18 13:57:50,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2024-11-18 13:57:50,986 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) [2024-11-18 13:57:50,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 940 transitions. [2024-11-18 13:57:50,997 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 940 transitions. Word has length 63 [2024-11-18 13:57:50,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:50,999 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 940 transitions. [2024-11-18 13:57:50,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:50,999 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 940 transitions. [2024-11-18 13:57:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-18 13:57:51,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:51,003 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] [2024-11-18 13:57:51,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 13:57:51,004 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:51,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:51,005 INFO L85 PathProgramCache]: Analyzing trace with hash -980358575, now seen corresponding path program 1 times [2024-11-18 13:57:51,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:51,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600685749] [2024-11-18 13:57:51,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:51,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:51,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:51,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:51,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600685749] [2024-11-18 13:57:51,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600685749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:51,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:51,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:51,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753538281] [2024-11-18 13:57:51,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:51,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:51,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:51,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:51,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:51,190 INFO L87 Difference]: Start difference. First operand 576 states and 940 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:51,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:51,282 INFO L93 Difference]: Finished difference Result 1135 states and 1857 transitions. [2024-11-18 13:57:51,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:51,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 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 [2024-11-18 13:57:51,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:51,289 INFO L225 Difference]: With dead ends: 1135 [2024-11-18 13:57:51,290 INFO L226 Difference]: Without dead ends: 576 [2024-11-18 13:57:51,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:51,295 INFO L432 NwaCegarLoop]: 926 mSDtfsCounter, 4 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:51,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2771 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:51,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-18 13:57:51,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2024-11-18 13:57:51,327 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) [2024-11-18 13:57:51,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 939 transitions. [2024-11-18 13:57:51,334 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 939 transitions. Word has length 64 [2024-11-18 13:57:51,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:51,334 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 939 transitions. [2024-11-18 13:57:51,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:51,335 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 939 transitions. [2024-11-18 13:57:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 13:57:51,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:51,342 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] [2024-11-18 13:57:51,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 13:57:51,342 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:51,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:51,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1204370371, now seen corresponding path program 1 times [2024-11-18 13:57:51,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:51,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559059582] [2024-11-18 13:57:51,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:51,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:51,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:51,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559059582] [2024-11-18 13:57:51,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559059582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:51,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:51,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:51,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336871794] [2024-11-18 13:57:51,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:51,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:51,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:51,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:51,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:51,516 INFO L87 Difference]: Start difference. First operand 576 states and 939 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:51,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:51,581 INFO L93 Difference]: Finished difference Result 1135 states and 1856 transitions. [2024-11-18 13:57:51,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:51,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 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 [2024-11-18 13:57:51,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:51,588 INFO L225 Difference]: With dead ends: 1135 [2024-11-18 13:57:51,588 INFO L226 Difference]: Without dead ends: 576 [2024-11-18 13:57:51,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:51,592 INFO L432 NwaCegarLoop]: 926 mSDtfsCounter, 3 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:51,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2771 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:51,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-18 13:57:51,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2024-11-18 13:57:51,614 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) [2024-11-18 13:57:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 938 transitions. [2024-11-18 13:57:51,620 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 938 transitions. Word has length 65 [2024-11-18 13:57:51,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:51,620 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 938 transitions. [2024-11-18 13:57:51,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:51,621 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 938 transitions. [2024-11-18 13:57:51,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 13:57:51,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:51,622 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] [2024-11-18 13:57:51,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 13:57:51,623 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:51,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:51,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1006796275, now seen corresponding path program 1 times [2024-11-18 13:57:51,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:51,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45231648] [2024-11-18 13:57:51,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:51,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:51,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:51,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:51,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45231648] [2024-11-18 13:57:51,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45231648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:51,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:51,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:51,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13035250] [2024-11-18 13:57:51,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:51,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:51,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:51,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:51,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:51,780 INFO L87 Difference]: Start difference. First operand 576 states and 938 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:51,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:51,837 INFO L93 Difference]: Finished difference Result 1135 states and 1855 transitions. [2024-11-18 13:57:51,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:51,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 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 [2024-11-18 13:57:51,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:51,843 INFO L225 Difference]: With dead ends: 1135 [2024-11-18 13:57:51,843 INFO L226 Difference]: Without dead ends: 576 [2024-11-18 13:57:51,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:51,848 INFO L432 NwaCegarLoop]: 926 mSDtfsCounter, 2 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:51,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2771 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:51,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-18 13:57:51,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2024-11-18 13:57:51,869 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) [2024-11-18 13:57:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 937 transitions. [2024-11-18 13:57:51,874 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 937 transitions. Word has length 66 [2024-11-18 13:57:51,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:51,875 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 937 transitions. [2024-11-18 13:57:51,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:51,876 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 937 transitions. [2024-11-18 13:57:51,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 13:57:51,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:51,880 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] [2024-11-18 13:57:51,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 13:57:51,880 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:51,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:51,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2051772801, now seen corresponding path program 1 times [2024-11-18 13:57:51,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:51,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383864081] [2024-11-18 13:57:51,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:51,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:51,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:51,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:51,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383864081] [2024-11-18 13:57:51,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383864081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:51,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:51,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:51,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728019284] [2024-11-18 13:57:51,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:51,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:51,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:51,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:51,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:51,977 INFO L87 Difference]: Start difference. First operand 576 states and 937 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:52,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:52,032 INFO L93 Difference]: Finished difference Result 1135 states and 1854 transitions. [2024-11-18 13:57:52,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:52,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 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 [2024-11-18 13:57:52,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:52,037 INFO L225 Difference]: With dead ends: 1135 [2024-11-18 13:57:52,038 INFO L226 Difference]: Without dead ends: 576 [2024-11-18 13:57:52,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:52,041 INFO L432 NwaCegarLoop]: 926 mSDtfsCounter, 1 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:52,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2771 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:52,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-18 13:57:52,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2024-11-18 13:57:52,058 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) [2024-11-18 13:57:52,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 936 transitions. [2024-11-18 13:57:52,064 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 936 transitions. Word has length 67 [2024-11-18 13:57:52,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:52,064 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 936 transitions. [2024-11-18 13:57:52,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:52,064 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 936 transitions. [2024-11-18 13:57:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 13:57:52,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:52,066 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] [2024-11-18 13:57:52,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 13:57:52,066 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:52,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:52,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1304593975, now seen corresponding path program 1 times [2024-11-18 13:57:52,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:52,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688397398] [2024-11-18 13:57:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:52,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:52,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:52,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:52,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688397398] [2024-11-18 13:57:52,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688397398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:52,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:52,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 13:57:52,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391492549] [2024-11-18 13:57:52,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:52,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 13:57:52,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:52,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 13:57:52,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:52,245 INFO L87 Difference]: Start difference. First operand 576 states and 936 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:52,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:52,355 INFO L93 Difference]: Finished difference Result 1146 states and 1871 transitions. [2024-11-18 13:57:52,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 13:57:52,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 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 68 [2024-11-18 13:57:52,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:52,362 INFO L225 Difference]: With dead ends: 1146 [2024-11-18 13:57:52,362 INFO L226 Difference]: Without dead ends: 591 [2024-11-18 13:57:52,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 13:57:52,367 INFO L432 NwaCegarLoop]: 923 mSDtfsCounter, 91 mSDsluCounter, 4530 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5453 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:52,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5453 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-11-18 13:57:52,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 589. [2024-11-18 13:57:52,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 455 states have (on average 1.6395604395604395) internal successors, (746), 474 states have internal predecessors, (746), 104 states have call successors, (104), 28 states have call predecessors, (104), 29 states have return successors, (106), 100 states have call predecessors, (106), 103 states have call successors, (106) [2024-11-18 13:57:52,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 956 transitions. [2024-11-18 13:57:52,394 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 956 transitions. Word has length 68 [2024-11-18 13:57:52,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:52,395 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 956 transitions. [2024-11-18 13:57:52,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:52,395 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 956 transitions. [2024-11-18 13:57:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 13:57:52,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:52,396 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] [2024-11-18 13:57:52,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 13:57:52,397 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:52,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:52,397 INFO L85 PathProgramCache]: Analyzing trace with hash -535423960, now seen corresponding path program 1 times [2024-11-18 13:57:52,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:52,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185646497] [2024-11-18 13:57:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:52,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:52,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:52,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:52,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185646497] [2024-11-18 13:57:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185646497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:52,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:52,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:52,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483663573] [2024-11-18 13:57:52,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:52,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:52,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:52,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:52,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:52,488 INFO L87 Difference]: Start difference. First operand 589 states and 956 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:52,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:52,540 INFO L93 Difference]: Finished difference Result 1153 states and 1882 transitions. [2024-11-18 13:57:52,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:57:52,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 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 [2024-11-18 13:57:52,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:52,546 INFO L225 Difference]: With dead ends: 1153 [2024-11-18 13:57:52,546 INFO L226 Difference]: Without dead ends: 585 [2024-11-18 13:57:52,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 13:57:52,550 INFO L432 NwaCegarLoop]: 924 mSDtfsCounter, 1 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2766 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:52,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2766 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:52,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-18 13:57:52,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2024-11-18 13:57:52,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 453 states have (on average 1.640176600441501) internal successors, (743), 471 states have internal predecessors, (743), 103 states have call successors, (103), 28 states have call predecessors, (103), 28 states have return successors, (103), 99 states have call predecessors, (103), 102 states have call successors, (103) [2024-11-18 13:57:52,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 949 transitions. [2024-11-18 13:57:52,569 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 949 transitions. Word has length 68 [2024-11-18 13:57:52,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:52,569 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 949 transitions. [2024-11-18 13:57:52,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:52,570 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 949 transitions. [2024-11-18 13:57:52,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 13:57:52,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:52,571 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] [2024-11-18 13:57:52,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 13:57:52,571 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:52,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:52,572 INFO L85 PathProgramCache]: Analyzing trace with hash -274384751, now seen corresponding path program 1 times [2024-11-18 13:57:52,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:52,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185189617] [2024-11-18 13:57:52,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:52,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:52,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:52,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185189617] [2024-11-18 13:57:52,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185189617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:52,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:52,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:52,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536066755] [2024-11-18 13:57:52,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:52,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:52,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:52,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:52,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:52,697 INFO L87 Difference]: Start difference. First operand 585 states and 949 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:52,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:52,997 INFO L93 Difference]: Finished difference Result 1196 states and 1954 transitions. [2024-11-18 13:57:52,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 13:57:52,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-11-18 13:57:53,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:53,005 INFO L225 Difference]: With dead ends: 1196 [2024-11-18 13:57:53,006 INFO L226 Difference]: Without dead ends: 617 [2024-11-18 13:57:53,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 13:57:53,010 INFO L432 NwaCegarLoop]: 898 mSDtfsCounter, 72 mSDsluCounter, 3513 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4411 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:53,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4411 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 13:57:53,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-18 13:57:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 590. [2024-11-18 13:57:53,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 458 states have (on average 1.6266375545851528) internal successors, (745), 475 states have internal predecessors, (745), 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) [2024-11-18 13:57:53,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 950 transitions. [2024-11-18 13:57:53,038 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 950 transitions. Word has length 69 [2024-11-18 13:57:53,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:53,039 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 950 transitions. [2024-11-18 13:57:53,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:53,039 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 950 transitions. [2024-11-18 13:57:53,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-18 13:57:53,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:53,041 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] [2024-11-18 13:57:53,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 13:57:53,041 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:53,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:53,042 INFO L85 PathProgramCache]: Analyzing trace with hash -903869780, now seen corresponding path program 1 times [2024-11-18 13:57:53,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:53,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308283232] [2024-11-18 13:57:53,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:53,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:53,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:53,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:53,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308283232] [2024-11-18 13:57:53,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308283232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:53,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:53,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:53,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403392967] [2024-11-18 13:57:53,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:53,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:53,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:53,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:53,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:53,208 INFO L87 Difference]: Start difference. First operand 590 states and 950 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:53,406 INFO L93 Difference]: Finished difference Result 1147 states and 1849 transitions. [2024-11-18 13:57:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:53,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2024-11-18 13:57:53,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:53,412 INFO L225 Difference]: With dead ends: 1147 [2024-11-18 13:57:53,412 INFO L226 Difference]: Without dead ends: 608 [2024-11-18 13:57:53,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:53,416 INFO L432 NwaCegarLoop]: 887 mSDtfsCounter, 56 mSDsluCounter, 3501 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4388 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:53,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4388 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 13:57:53,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-18 13:57:53,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 590. [2024-11-18 13:57:53,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 458 states have (on average 1.6179039301310043) internal successors, (741), 475 states have internal predecessors, (741), 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) [2024-11-18 13:57:53,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 946 transitions. [2024-11-18 13:57:53,437 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 946 transitions. Word has length 70 [2024-11-18 13:57:53,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:53,437 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 946 transitions. [2024-11-18 13:57:53,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:53,438 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 946 transitions. [2024-11-18 13:57:53,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-18 13:57:53,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:53,439 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] [2024-11-18 13:57:53,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 13:57:53,439 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:53,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:53,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1143162998, now seen corresponding path program 1 times [2024-11-18 13:57:53,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:53,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054006213] [2024-11-18 13:57:53,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:53,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:53,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:53,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:53,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054006213] [2024-11-18 13:57:53,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054006213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:53,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:53,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:53,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881805113] [2024-11-18 13:57:53,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:53,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:53,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:53,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:53,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:53,577 INFO L87 Difference]: Start difference. First operand 590 states and 946 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:53,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:53,792 INFO L93 Difference]: Finished difference Result 1147 states and 1845 transitions. [2024-11-18 13:57:53,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:53,793 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2024-11-18 13:57:53,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:53,798 INFO L225 Difference]: With dead ends: 1147 [2024-11-18 13:57:53,798 INFO L226 Difference]: Without dead ends: 608 [2024-11-18 13:57:53,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:53,801 INFO L432 NwaCegarLoop]: 886 mSDtfsCounter, 55 mSDsluCounter, 3497 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4383 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:53,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4383 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:53,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-18 13:57:53,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 590. [2024-11-18 13:57:53,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 458 states have (on average 1.6091703056768558) internal successors, (737), 475 states have internal predecessors, (737), 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) [2024-11-18 13:57:53,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 942 transitions. [2024-11-18 13:57:53,825 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 942 transitions. Word has length 71 [2024-11-18 13:57:53,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:53,825 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 942 transitions. [2024-11-18 13:57:53,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:53,826 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 942 transitions. [2024-11-18 13:57:53,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-18 13:57:53,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:53,827 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] [2024-11-18 13:57:53,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 13:57:53,827 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:53,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:53,828 INFO L85 PathProgramCache]: Analyzing trace with hash 965379318, now seen corresponding path program 1 times [2024-11-18 13:57:53,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:53,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837358527] [2024-11-18 13:57:53,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:53,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:53,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:53,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:53,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837358527] [2024-11-18 13:57:53,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837358527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:53,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:53,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 13:57:53,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95269916] [2024-11-18 13:57:53,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:53,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 13:57:53,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:53,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 13:57:53,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:53,978 INFO L87 Difference]: Start difference. First operand 590 states and 942 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:54,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:54,072 INFO L93 Difference]: Finished difference Result 1138 states and 1827 transitions. [2024-11-18 13:57:54,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 13:57:54,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 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 71 [2024-11-18 13:57:54,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:54,080 INFO L225 Difference]: With dead ends: 1138 [2024-11-18 13:57:54,081 INFO L226 Difference]: Without dead ends: 578 [2024-11-18 13:57:54,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 13:57:54,085 INFO L432 NwaCegarLoop]: 912 mSDtfsCounter, 94 mSDsluCounter, 4464 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 5376 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:54,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 5376 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:54,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-18 13:57:54,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 569. [2024-11-18 13:57:54,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 437 states have (on average 1.6018306636155606) internal successors, (700), 454 states have internal predecessors, (700), 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) [2024-11-18 13:57:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 905 transitions. [2024-11-18 13:57:54,106 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 905 transitions. Word has length 71 [2024-11-18 13:57:54,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:54,106 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 905 transitions. [2024-11-18 13:57:54,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:54,107 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 905 transitions. [2024-11-18 13:57:54,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-18 13:57:54,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:54,109 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] [2024-11-18 13:57:54,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 13:57:54,109 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:54,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:54,110 INFO L85 PathProgramCache]: Analyzing trace with hash 262901873, now seen corresponding path program 1 times [2024-11-18 13:57:54,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:54,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966266348] [2024-11-18 13:57:54,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:54,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:54,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:54,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:54,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966266348] [2024-11-18 13:57:54,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966266348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:54,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:54,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:54,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599006958] [2024-11-18 13:57:54,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:54,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:54,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:54,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:54,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:54,252 INFO L87 Difference]: Start difference. First operand 569 states and 905 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:54,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:54,362 INFO L93 Difference]: Finished difference Result 1117 states and 1790 transitions. [2024-11-18 13:57:54,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:54,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-11-18 13:57:54,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:54,368 INFO L225 Difference]: With dead ends: 1117 [2024-11-18 13:57:54,368 INFO L226 Difference]: Without dead ends: 578 [2024-11-18 13:57:54,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:54,372 INFO L432 NwaCegarLoop]: 887 mSDtfsCounter, 39 mSDsluCounter, 3501 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4388 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:54,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4388 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:54,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-18 13:57:54,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 569. [2024-11-18 13:57:54,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 437 states have (on average 1.59954233409611) internal successors, (699), 454 states have internal predecessors, (699), 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) [2024-11-18 13:57:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 904 transitions. [2024-11-18 13:57:54,392 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 904 transitions. Word has length 72 [2024-11-18 13:57:54,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:54,393 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 904 transitions. [2024-11-18 13:57:54,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:54,393 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 904 transitions. [2024-11-18 13:57:54,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-18 13:57:54,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:54,394 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] [2024-11-18 13:57:54,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 13:57:54,395 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:54,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:54,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1169157029, now seen corresponding path program 1 times [2024-11-18 13:57:54,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:54,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681222908] [2024-11-18 13:57:54,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:54,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:54,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:54,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:54,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681222908] [2024-11-18 13:57:54,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681222908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:54,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:54,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:54,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012803816] [2024-11-18 13:57:54,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:54,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:54,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:54,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:54,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:54,532 INFO L87 Difference]: Start difference. First operand 569 states and 904 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:54,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:54,631 INFO L93 Difference]: Finished difference Result 1117 states and 1789 transitions. [2024-11-18 13:57:54,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:54,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2024-11-18 13:57:54,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:54,637 INFO L225 Difference]: With dead ends: 1117 [2024-11-18 13:57:54,637 INFO L226 Difference]: Without dead ends: 578 [2024-11-18 13:57:54,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:54,641 INFO L432 NwaCegarLoop]: 887 mSDtfsCounter, 38 mSDsluCounter, 3501 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4388 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:54,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4388 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:54,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-18 13:57:54,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 569. [2024-11-18 13:57:54,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 437 states have (on average 1.597254004576659) internal successors, (698), 454 states have internal predecessors, (698), 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) [2024-11-18 13:57:54,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 903 transitions. [2024-11-18 13:57:54,662 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 903 transitions. Word has length 73 [2024-11-18 13:57:54,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:54,662 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 903 transitions. [2024-11-18 13:57:54,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:54,662 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 903 transitions. [2024-11-18 13:57:54,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 13:57:54,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:54,663 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:54,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 13:57:54,664 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:54,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:54,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1767889462, now seen corresponding path program 1 times [2024-11-18 13:57:54,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:54,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630999455] [2024-11-18 13:57:54,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:54,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:54,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:54,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:54,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630999455] [2024-11-18 13:57:54,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630999455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:54,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:54,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:54,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412786415] [2024-11-18 13:57:54,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:54,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:54,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:54,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:54,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:54,759 INFO L87 Difference]: Start difference. First operand 569 states and 903 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:54,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:54,812 INFO L93 Difference]: Finished difference Result 1104 states and 1768 transitions. [2024-11-18 13:57:54,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:54,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-11-18 13:57:54,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:54,818 INFO L225 Difference]: With dead ends: 1104 [2024-11-18 13:57:54,818 INFO L226 Difference]: Without dead ends: 571 [2024-11-18 13:57:54,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:54,821 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 16 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:54,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2582 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:54,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-18 13:57:54,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2024-11-18 13:57:54,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 439 states have (on average 1.5922551252847381) internal successors, (699), 456 states have internal predecessors, (699), 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) [2024-11-18 13:57:54,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 904 transitions. [2024-11-18 13:57:54,842 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 904 transitions. Word has length 74 [2024-11-18 13:57:54,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:54,842 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 904 transitions. [2024-11-18 13:57:54,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 13:57:54,843 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 904 transitions. [2024-11-18 13:57:54,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-18 13:57:54,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:54,846 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] [2024-11-18 13:57:54,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 13:57:54,846 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:54,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:54,846 INFO L85 PathProgramCache]: Analyzing trace with hash -394900208, now seen corresponding path program 1 times [2024-11-18 13:57:54,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:54,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364204047] [2024-11-18 13:57:54,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:54,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:55,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 13:57:55,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:55,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364204047] [2024-11-18 13:57:55,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364204047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:55,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:55,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 13:57:55,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319234208] [2024-11-18 13:57:55,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:55,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:57:55,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:55,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:57:55,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 13:57:55,040 INFO L87 Difference]: Start difference. First operand 571 states and 904 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:55,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:55,195 INFO L93 Difference]: Finished difference Result 1614 states and 2606 transitions. [2024-11-18 13:57:55,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:57:55,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 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 [2024-11-18 13:57:55,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:55,206 INFO L225 Difference]: With dead ends: 1614 [2024-11-18 13:57:55,206 INFO L226 Difference]: Without dead ends: 1086 [2024-11-18 13:57:55,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 13:57:55,211 INFO L432 NwaCegarLoop]: 976 mSDtfsCounter, 837 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:55,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1811 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:55,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2024-11-18 13:57:55,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1023. [2024-11-18 13:57:55,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 791 states have (on average 1.6106194690265487) internal successors, (1274), 817 states have internal predecessors, (1274), 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) [2024-11-18 13:57:55,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1643 transitions. [2024-11-18 13:57:55,267 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1643 transitions. Word has length 75 [2024-11-18 13:57:55,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:55,268 INFO L471 AbstractCegarLoop]: Abstraction has 1023 states and 1643 transitions. [2024-11-18 13:57:55,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 13:57:55,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1643 transitions. [2024-11-18 13:57:55,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-18 13:57:55,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:55,273 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] [2024-11-18 13:57:55,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 13:57:55,274 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:55,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:55,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1754565884, now seen corresponding path program 1 times [2024-11-18 13:57:55,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:55,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280194465] [2024-11-18 13:57:55,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:55,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-18 13:57:55,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280194465] [2024-11-18 13:57:55,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280194465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:55,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797394326] [2024-11-18 13:57:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:55,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:55,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:55,643 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) [2024-11-18 13:57:55,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 13:57:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:56,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 13:57:56,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-18 13:57:56,207 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:56,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797394326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:56,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:56,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-18 13:57:56,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943653104] [2024-11-18 13:57:56,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:56,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:56,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:56,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:56,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-18 13:57:56,210 INFO L87 Difference]: Start difference. First operand 1023 states and 1643 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-18 13:57:56,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:56,730 INFO L93 Difference]: Finished difference Result 2590 states and 4168 transitions. [2024-11-18 13:57:56,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:56,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 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 129 [2024-11-18 13:57:56,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:56,744 INFO L225 Difference]: With dead ends: 2590 [2024-11-18 13:57:56,744 INFO L226 Difference]: Without dead ends: 1610 [2024-11-18 13:57:56,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-18 13:57:56,752 INFO L432 NwaCegarLoop]: 1143 mSDtfsCounter, 839 mSDsluCounter, 3667 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 4810 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:56,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 4810 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 13:57:56,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1610 states. [2024-11-18 13:57:56,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1610 to 1608. [2024-11-18 13:57:56,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1239 states have (on average 1.5811138014527846) internal successors, (1959), 1268 states have internal predecessors, (1959), 285 states have call successors, (285), 87 states have call predecessors, (285), 83 states have return successors, (315), 268 states have call predecessors, (315), 281 states have call successors, (315) [2024-11-18 13:57:56,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2559 transitions. [2024-11-18 13:57:56,833 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2559 transitions. Word has length 129 [2024-11-18 13:57:56,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:56,834 INFO L471 AbstractCegarLoop]: Abstraction has 1608 states and 2559 transitions. [2024-11-18 13:57:56,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-11-18 13:57:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2559 transitions. [2024-11-18 13:57:56,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-18 13:57:56,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:56,839 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] [2024-11-18 13:57:56,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 13:57:57,043 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 [2024-11-18 13:57:57,044 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:57,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:57,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1064276983, now seen corresponding path program 1 times [2024-11-18 13:57:57,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:57,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023697343] [2024-11-18 13:57:57,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:57,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 13:57:57,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:57,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023697343] [2024-11-18 13:57:57,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023697343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:57,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780248964] [2024-11-18 13:57:57,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:57,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:57,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:57,245 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) [2024-11-18 13:57:57,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 13:57:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:57,580 INFO L255 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:57:57,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:57,712 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-18 13:57:57,712 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:57,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780248964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:57,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:57,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:57:57,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223926695] [2024-11-18 13:57:57,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:57,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:57:57,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:57,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:57:57,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:57,715 INFO L87 Difference]: Start difference. First operand 1608 states and 2559 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) [2024-11-18 13:57:58,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:58,382 INFO L93 Difference]: Finished difference Result 3205 states and 5258 transitions. [2024-11-18 13:57:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:58,383 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 [2024-11-18 13:57:58,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:58,402 INFO L225 Difference]: With dead ends: 3205 [2024-11-18 13:57:58,403 INFO L226 Difference]: Without dead ends: 1640 [2024-11-18 13:57:58,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:58,416 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 833 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:58,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 2191 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 13:57:58,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2024-11-18 13:57:58,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1640. [2024-11-18 13:57:58,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1640 states, 1267 states have (on average 1.5840568271507498) internal successors, (2007), 1296 states have internal predecessors, (2007), 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) [2024-11-18 13:57:58,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 2611 transitions. [2024-11-18 13:57:58,503 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 2611 transitions. Word has length 130 [2024-11-18 13:57:58,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:58,504 INFO L471 AbstractCegarLoop]: Abstraction has 1640 states and 2611 transitions. [2024-11-18 13:57:58,504 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) [2024-11-18 13:57:58,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 2611 transitions. [2024-11-18 13:57:58,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-18 13:57:58,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:58,509 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] [2024-11-18 13:57:58,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 13:57:58,710 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 [2024-11-18 13:57:58,710 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:58,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:58,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1765652466, now seen corresponding path program 1 times [2024-11-18 13:57:58,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:58,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552771401] [2024-11-18 13:57:58,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:58,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:58,910 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-18 13:57:58,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552771401] [2024-11-18 13:57:58,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552771401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749824114] [2024-11-18 13:57:58,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:58,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:58,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:58,913 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) [2024-11-18 13:57:58,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 13:57:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:59,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:57:59,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:59,367 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 13:57:59,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:59,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749824114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:59,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:59,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:57:59,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334508791] [2024-11-18 13:57:59,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:59,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:57:59,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:59,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:57:59,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:59,370 INFO L87 Difference]: Start difference. First operand 1640 states and 2611 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) [2024-11-18 13:57:59,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:59,972 INFO L93 Difference]: Finished difference Result 3269 states and 5350 transitions. [2024-11-18 13:57:59,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:59,972 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 [2024-11-18 13:57:59,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:59,986 INFO L225 Difference]: With dead ends: 3269 [2024-11-18 13:57:59,986 INFO L226 Difference]: Without dead ends: 1672 [2024-11-18 13:57:59,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:59,997 INFO L432 NwaCegarLoop]: 862 mSDtfsCounter, 824 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:59,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 2188 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 13:57:59,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2024-11-18 13:58:00,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2024-11-18 13:58:00,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1295 states have (on average 1.5868725868725868) internal successors, (2055), 1324 states have internal predecessors, (2055), 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) [2024-11-18 13:58:00,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2663 transitions. [2024-11-18 13:58:00,143 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2663 transitions. Word has length 133 [2024-11-18 13:58:00,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:00,144 INFO L471 AbstractCegarLoop]: Abstraction has 1672 states and 2663 transitions. [2024-11-18 13:58:00,144 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) [2024-11-18 13:58:00,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2663 transitions. [2024-11-18 13:58:00,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-18 13:58:00,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:00,150 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] [2024-11-18 13:58:00,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:00,351 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 [2024-11-18 13:58:00,351 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:00,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:00,352 INFO L85 PathProgramCache]: Analyzing trace with hash 503871333, now seen corresponding path program 1 times [2024-11-18 13:58:00,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:00,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136484789] [2024-11-18 13:58:00,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:00,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-18 13:58:00,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:00,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136484789] [2024-11-18 13:58:00,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136484789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:00,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713972652] [2024-11-18 13:58:00,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:00,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:00,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:00,499 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) [2024-11-18 13:58:00,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 13:58:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:00,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:58:00,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:00,941 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-18 13:58:00,941 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:00,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713972652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:00,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:00,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:58:00,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613712016] [2024-11-18 13:58:00,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:00,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:58:00,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:00,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:58:00,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:58:00,944 INFO L87 Difference]: Start difference. First operand 1672 states and 2663 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) [2024-11-18 13:58:01,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:01,569 INFO L93 Difference]: Finished difference Result 3333 states and 5442 transitions. [2024-11-18 13:58:01,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:58:01,570 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 [2024-11-18 13:58:01,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:01,583 INFO L225 Difference]: With dead ends: 3333 [2024-11-18 13:58:01,583 INFO L226 Difference]: Without dead ends: 1704 [2024-11-18 13:58:01,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:58:01,596 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 826 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:01,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 2185 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 13:58:01,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2024-11-18 13:58:01,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1704. [2024-11-18 13:58:01,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1323 states have (on average 1.5895691609977325) internal successors, (2103), 1352 states have internal predecessors, (2103), 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) [2024-11-18 13:58:01,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2715 transitions. [2024-11-18 13:58:01,736 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2715 transitions. Word has length 136 [2024-11-18 13:58:01,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:01,736 INFO L471 AbstractCegarLoop]: Abstraction has 1704 states and 2715 transitions. [2024-11-18 13:58:01,737 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) [2024-11-18 13:58:01,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2715 transitions. [2024-11-18 13:58:01,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-18 13:58:01,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:01,744 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] [2024-11-18 13:58:01,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 13:58:01,945 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 [2024-11-18 13:58:01,946 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:01,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:01,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1020072542, now seen corresponding path program 1 times [2024-11-18 13:58:01,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:01,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464758683] [2024-11-18 13:58:01,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:01,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:58:02,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:02,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464758683] [2024-11-18 13:58:02,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464758683] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:02,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123267051] [2024-11-18 13:58:02,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:02,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:02,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:02,131 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) [2024-11-18 13:58:02,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 13:58:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:02,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:58:02,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:02,647 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-18 13:58:02,648 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:02,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123267051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:02,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:02,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:58:02,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274794956] [2024-11-18 13:58:02,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:02,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:58:02,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:02,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:58:02,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:58:02,652 INFO L87 Difference]: Start difference. First operand 1704 states and 2715 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) [2024-11-18 13:58:03,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:03,297 INFO L93 Difference]: Finished difference Result 3397 states and 5534 transitions. [2024-11-18 13:58:03,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:58:03,297 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 [2024-11-18 13:58:03,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:03,312 INFO L225 Difference]: With dead ends: 3397 [2024-11-18 13:58:03,312 INFO L226 Difference]: Without dead ends: 1736 [2024-11-18 13:58:03,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:58:03,324 INFO L432 NwaCegarLoop]: 856 mSDtfsCounter, 821 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 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, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:03,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 2182 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 13:58:03,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-18 13:58:03,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1736. [2024-11-18 13:58:03,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1351 states have (on average 1.5921539600296077) internal successors, (2151), 1380 states have internal predecessors, (2151), 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) [2024-11-18 13:58:03,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2767 transitions. [2024-11-18 13:58:03,409 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2767 transitions. Word has length 139 [2024-11-18 13:58:03,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:03,409 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2767 transitions. [2024-11-18 13:58:03,410 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) [2024-11-18 13:58:03,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2767 transitions. [2024-11-18 13:58:03,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 13:58:03,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:03,415 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] [2024-11-18 13:58:03,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:03,615 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 [2024-11-18 13:58:03,616 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:03,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:03,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1099977535, now seen corresponding path program 1 times [2024-11-18 13:58:03,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:03,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975170897] [2024-11-18 13:58:03,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:03,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:03,960 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-18 13:58:03,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:03,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975170897] [2024-11-18 13:58:03,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975170897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:03,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155858635] [2024-11-18 13:58:03,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:03,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:03,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:03,963 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) [2024-11-18 13:58:03,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 13:58:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:04,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 13:58:04,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:04,463 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:58:04,464 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:04,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155858635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:04,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:04,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-18 13:58:04,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352185218] [2024-11-18 13:58:04,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:04,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:58:04,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:04,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:58:04,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-18 13:58:04,468 INFO L87 Difference]: Start difference. First operand 1736 states and 2767 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) [2024-11-18 13:58:06,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:06,357 INFO L93 Difference]: Finished difference Result 3524 states and 5621 transitions. [2024-11-18 13:58:06,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:58:06,358 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 [2024-11-18 13:58:06,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:06,373 INFO L225 Difference]: With dead ends: 3524 [2024-11-18 13:58:06,373 INFO L226 Difference]: Without dead ends: 1834 [2024-11-18 13:58:06,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-18 13:58:06,381 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 2132 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2245 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:06,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2245 Valid, 876 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-18 13:58:06,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2024-11-18 13:58:06,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1696. [2024-11-18 13:58:06,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 1267 states have (on average 1.5540647198105761) internal successors, (1969), 1316 states have internal predecessors, (1969), 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) [2024-11-18 13:58:06,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 2677 transitions. [2024-11-18 13:58:06,507 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 2677 transitions. Word has length 142 [2024-11-18 13:58:06,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:06,507 INFO L471 AbstractCegarLoop]: Abstraction has 1696 states and 2677 transitions. [2024-11-18 13:58:06,508 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) [2024-11-18 13:58:06,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 2677 transitions. [2024-11-18 13:58:06,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 13:58:06,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:06,512 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] [2024-11-18 13:58:06,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-18 13:58:06,712 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 [2024-11-18 13:58:06,713 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:06,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:06,713 INFO L85 PathProgramCache]: Analyzing trace with hash -2053917693, now seen corresponding path program 1 times [2024-11-18 13:58:06,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:06,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021899214] [2024-11-18 13:58:06,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:06,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:07,045 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-18 13:58:07,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:07,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021899214] [2024-11-18 13:58:07,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021899214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:07,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828556457] [2024-11-18 13:58:07,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:07,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:07,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:07,047 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) [2024-11-18 13:58:07,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 13:58:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:07,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-18 13:58:07,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:07,503 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 13:58:07,503 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:07,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828556457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:07,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:07,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-18 13:58:07,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651197355] [2024-11-18 13:58:07,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:07,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 13:58:07,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:07,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 13:58:07,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-18 13:58:07,505 INFO L87 Difference]: Start difference. First operand 1696 states and 2677 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) [2024-11-18 13:58:11,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:11,457 INFO L93 Difference]: Finished difference Result 7253 states and 11763 transitions. [2024-11-18 13:58:11,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 13:58:11,458 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 [2024-11-18 13:58:11,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:11,500 INFO L225 Difference]: With dead ends: 7253 [2024-11-18 13:58:11,500 INFO L226 Difference]: Without dead ends: 5602 [2024-11-18 13:58:11,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-18 13:58:11,512 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 2832 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 6125 mSolverCounterSat, 731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2937 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 6856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 6125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:11,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2937 Valid, 2101 Invalid, 6856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [731 Valid, 6125 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-18 13:58:11,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5602 states. [2024-11-18 13:58:11,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5602 to 5186. [2024-11-18 13:58:11,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5186 states, 3859 states have (on average 1.549624254988339) internal successors, (5980), 4013 states have internal predecessors, (5980), 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) [2024-11-18 13:58:11,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 8356 transitions. [2024-11-18 13:58:11,852 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 8356 transitions. Word has length 142 [2024-11-18 13:58:11,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:11,852 INFO L471 AbstractCegarLoop]: Abstraction has 5186 states and 8356 transitions. [2024-11-18 13:58:11,852 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) [2024-11-18 13:58:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 8356 transitions. [2024-11-18 13:58:11,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-18 13:58:11,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:11,858 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] [2024-11-18 13:58:11,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:12,059 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 [2024-11-18 13:58:12,059 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:12,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash -619933128, now seen corresponding path program 1 times [2024-11-18 13:58:12,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:12,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750236151] [2024-11-18 13:58:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:12,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:12,434 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-18 13:58:12,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:12,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750236151] [2024-11-18 13:58:12,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750236151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:12,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565106014] [2024-11-18 13:58:12,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:12,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:12,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:12,437 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) [2024-11-18 13:58:12,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-18 13:58:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:12,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 13:58:12,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:12,828 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 13:58:12,829 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:12,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565106014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:12,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:12,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-18 13:58:12,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270476031] [2024-11-18 13:58:12,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:12,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:58:12,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:12,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:58:12,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:12,831 INFO L87 Difference]: Start difference. First operand 5186 states and 8356 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-18 13:58:13,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:13,158 INFO L93 Difference]: Finished difference Result 12135 states and 19762 transitions. [2024-11-18 13:58:13,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:58:13,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2024-11-18 13:58:13,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:13,215 INFO L225 Difference]: With dead ends: 12135 [2024-11-18 13:58:13,215 INFO L226 Difference]: Without dead ends: 6998 [2024-11-18 13:58:13,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:13,242 INFO L432 NwaCegarLoop]: 1697 mSDtfsCounter, 846 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:13,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 2574 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:58:13,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6998 states. [2024-11-18 13:58:13,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6998 to 5180. [2024-11-18 13:58:13,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5180 states, 3855 states have (on average 1.5491569390402076) internal successors, (5972), 4007 states have internal predecessors, (5972), 1016 states have call successors, (1016), 261 states have call predecessors, (1016), 308 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2024-11-18 13:58:13,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5180 states to 5180 states and 8324 transitions. [2024-11-18 13:58:13,652 INFO L78 Accepts]: Start accepts. Automaton has 5180 states and 8324 transitions. Word has length 147 [2024-11-18 13:58:13,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:13,653 INFO L471 AbstractCegarLoop]: Abstraction has 5180 states and 8324 transitions. [2024-11-18 13:58:13,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-18 13:58:13,653 INFO L276 IsEmpty]: Start isEmpty. Operand 5180 states and 8324 transitions. [2024-11-18 13:58:13,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-18 13:58:13,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:13,658 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] [2024-11-18 13:58:13,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-18 13:58:13,858 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,SelfDestructingSolverStorable22 [2024-11-18 13:58:13,859 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:13,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:13,859 INFO L85 PathProgramCache]: Analyzing trace with hash 39598394, now seen corresponding path program 1 times [2024-11-18 13:58:13,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:13,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282770232] [2024-11-18 13:58:13,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:13,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:14,212 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-18 13:58:14,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:14,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282770232] [2024-11-18 13:58:14,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282770232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:14,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279717957] [2024-11-18 13:58:14,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:14,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:14,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:14,215 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:14,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-18 13:58:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:14,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 13:58:14,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:14,637 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 13:58:14,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:14,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279717957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:14,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:14,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-18 13:58:14,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929890816] [2024-11-18 13:58:14,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:14,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:58:14,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:14,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:58:14,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-18 13:58:14,640 INFO L87 Difference]: Start difference. First operand 5180 states and 8324 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) [2024-11-18 13:58:15,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:15,047 INFO L93 Difference]: Finished difference Result 5182 states and 8325 transitions. [2024-11-18 13:58:15,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:58:15,048 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 [2024-11-18 13:58:15,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:15,080 INFO L225 Difference]: With dead ends: 5182 [2024-11-18 13:58:15,081 INFO L226 Difference]: Without dead ends: 5180 [2024-11-18 13:58:15,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-18 13:58:15,087 INFO L432 NwaCegarLoop]: 983 mSDtfsCounter, 392 mSDsluCounter, 3473 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 4456 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 [2024-11-18 13:58:15,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 4456 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 13:58:15,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2024-11-18 13:58:15,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 5180. [2024-11-18 13:58:15,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5180 states, 3855 states have (on average 1.5426718547341116) internal successors, (5947), 4007 states have internal predecessors, (5947), 1016 states have call successors, (1016), 261 states have call predecessors, (1016), 308 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2024-11-18 13:58:15,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5180 states to 5180 states and 8299 transitions. [2024-11-18 13:58:15,350 INFO L78 Accepts]: Start accepts. Automaton has 5180 states and 8299 transitions. Word has length 147 [2024-11-18 13:58:15,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:15,352 INFO L471 AbstractCegarLoop]: Abstraction has 5180 states and 8299 transitions. [2024-11-18 13:58:15,352 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) [2024-11-18 13:58:15,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5180 states and 8299 transitions. [2024-11-18 13:58:15,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-18 13:58:15,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:15,359 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] [2024-11-18 13:58:15,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-18 13:58:15,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-18 13:58:15,560 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:15,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:15,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1501906226, now seen corresponding path program 1 times [2024-11-18 13:58:15,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:15,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407737461] [2024-11-18 13:58:15,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:15,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-18 13:58:15,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:15,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407737461] [2024-11-18 13:58:15,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407737461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:15,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261601455] [2024-11-18 13:58:15,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:15,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:15,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:15,967 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:15,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-18 13:58:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:16,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:16,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:16,366 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 13:58:16,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:16,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261601455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:16,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:16,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:16,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035385674] [2024-11-18 13:58:16,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:16,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:16,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:16,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:16,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:16,369 INFO L87 Difference]: Start difference. First operand 5180 states and 8299 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:16,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:16,759 INFO L93 Difference]: Finished difference Result 10585 states and 17208 transitions. [2024-11-18 13:58:16,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:16,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 170 [2024-11-18 13:58:16,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:16,796 INFO L225 Difference]: With dead ends: 10585 [2024-11-18 13:58:16,796 INFO L226 Difference]: Without dead ends: 5450 [2024-11-18 13:58:16,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:16,820 INFO L432 NwaCegarLoop]: 823 mSDtfsCounter, 144 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:16,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2446 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:16,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2024-11-18 13:58:17,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 5414. [2024-11-18 13:58:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 4083 states have (on average 1.5638011266225815) internal successors, (6385), 4235 states have internal predecessors, (6385), 1016 states have call successors, (1016), 267 states have call predecessors, (1016), 314 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2024-11-18 13:58:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 8737 transitions. [2024-11-18 13:58:17,200 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 8737 transitions. Word has length 170 [2024-11-18 13:58:17,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:17,201 INFO L471 AbstractCegarLoop]: Abstraction has 5414 states and 8737 transitions. [2024-11-18 13:58:17,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:17,201 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 8737 transitions. [2024-11-18 13:58:17,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-18 13:58:17,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:17,207 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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, 1] [2024-11-18 13:58:17,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:17,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-18 13:58:17,408 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:17,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:17,409 INFO L85 PathProgramCache]: Analyzing trace with hash -702255303, now seen corresponding path program 1 times [2024-11-18 13:58:17,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:17,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609804094] [2024-11-18 13:58:17,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:17,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:17,717 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-18 13:58:17,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:17,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609804094] [2024-11-18 13:58:17,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609804094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:17,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275481238] [2024-11-18 13:58:17,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:17,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:17,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:17,720 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:17,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-18 13:58:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:18,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 1575 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:18,020 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:18,051 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 13:58:18,051 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:18,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275481238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:18,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:18,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:18,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825989980] [2024-11-18 13:58:18,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:18,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:18,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:18,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:18,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:18,054 INFO L87 Difference]: Start difference. First operand 5414 states and 8737 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:18,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:18,341 INFO L93 Difference]: Finished difference Result 11071 states and 18084 transitions. [2024-11-18 13:58:18,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:18,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 175 [2024-11-18 13:58:18,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:18,432 INFO L225 Difference]: With dead ends: 11071 [2024-11-18 13:58:18,432 INFO L226 Difference]: Without dead ends: 5702 [2024-11-18 13:58:18,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:18,450 INFO L432 NwaCegarLoop]: 822 mSDtfsCounter, 142 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2443 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:18,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2443 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:18,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5702 states. [2024-11-18 13:58:18,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5702 to 5648. [2024-11-18 13:58:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5648 states, 4311 states have (on average 1.5826954302945953) internal successors, (6823), 4463 states have internal predecessors, (6823), 1016 states have call successors, (1016), 273 states have call predecessors, (1016), 320 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2024-11-18 13:58:18,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5648 states to 5648 states and 9175 transitions. [2024-11-18 13:58:18,714 INFO L78 Accepts]: Start accepts. Automaton has 5648 states and 9175 transitions. Word has length 175 [2024-11-18 13:58:18,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:18,714 INFO L471 AbstractCegarLoop]: Abstraction has 5648 states and 9175 transitions. [2024-11-18 13:58:18,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:18,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5648 states and 9175 transitions. [2024-11-18 13:58:18,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-18 13:58:18,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:18,722 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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, 1, 1] [2024-11-18 13:58:18,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-18 13:58:18,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-18 13:58:18,923 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:18,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:18,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1330521047, now seen corresponding path program 1 times [2024-11-18 13:58:18,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:18,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458645716] [2024-11-18 13:58:18,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:18,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-18 13:58:19,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:19,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458645716] [2024-11-18 13:58:19,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458645716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:19,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983147491] [2024-11-18 13:58:19,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:19,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:19,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:19,202 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:19,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-18 13:58:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:19,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 1579 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:19,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:19,537 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-18 13:58:19,537 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:19,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983147491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:19,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:19,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:19,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156651972] [2024-11-18 13:58:19,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:19,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:19,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:19,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:19,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:19,539 INFO L87 Difference]: Start difference. First operand 5648 states and 9175 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:19,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:19,999 INFO L93 Difference]: Finished difference Result 11557 states and 18960 transitions. [2024-11-18 13:58:19,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:20,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 179 [2024-11-18 13:58:20,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:20,039 INFO L225 Difference]: With dead ends: 11557 [2024-11-18 13:58:20,039 INFO L226 Difference]: Without dead ends: 5954 [2024-11-18 13:58:20,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:20,063 INFO L432 NwaCegarLoop]: 821 mSDtfsCounter, 140 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:20,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2440 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:20,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5954 states. [2024-11-18 13:58:20,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5954 to 5882. [2024-11-18 13:58:20,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5882 states, 4539 states have (on average 1.5996915620180656) internal successors, (7261), 4691 states have internal predecessors, (7261), 1016 states have call successors, (1016), 279 states have call predecessors, (1016), 326 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2024-11-18 13:58:20,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 9613 transitions. [2024-11-18 13:58:20,325 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 9613 transitions. Word has length 179 [2024-11-18 13:58:20,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:20,326 INFO L471 AbstractCegarLoop]: Abstraction has 5882 states and 9613 transitions. [2024-11-18 13:58:20,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:20,326 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 9613 transitions. [2024-11-18 13:58:20,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-18 13:58:20,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:20,332 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 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, 1, 1, 1] [2024-11-18 13:58:20,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:20,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-18 13:58:20,533 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:20,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:20,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1965728430, now seen corresponding path program 1 times [2024-11-18 13:58:20,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:20,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562658758] [2024-11-18 13:58:20,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:20,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-18 13:58:20,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:20,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562658758] [2024-11-18 13:58:20,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562658758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:20,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056115778] [2024-11-18 13:58:20,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:20,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:20,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:20,899 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:20,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-18 13:58:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:21,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:21,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 13:58:21,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:21,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056115778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:21,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:21,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:21,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430368092] [2024-11-18 13:58:21,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:21,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:21,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:21,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:21,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:21,283 INFO L87 Difference]: Start difference. First operand 5882 states and 9613 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:21,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:21,724 INFO L93 Difference]: Finished difference Result 12043 states and 19836 transitions. [2024-11-18 13:58:21,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:21,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2024-11-18 13:58:21,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:21,775 INFO L225 Difference]: With dead ends: 12043 [2024-11-18 13:58:21,775 INFO L226 Difference]: Without dead ends: 6206 [2024-11-18 13:58:21,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:21,809 INFO L432 NwaCegarLoop]: 818 mSDtfsCounter, 138 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:21,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2430 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:21,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6206 states. [2024-11-18 13:58:22,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6206 to 6116. [2024-11-18 13:58:22,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6116 states, 4767 states have (on average 1.6150618837843507) internal successors, (7699), 4919 states have internal predecessors, (7699), 1016 states have call successors, (1016), 285 states have call predecessors, (1016), 332 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2024-11-18 13:58:22,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6116 states to 6116 states and 10051 transitions. [2024-11-18 13:58:22,110 INFO L78 Accepts]: Start accepts. Automaton has 6116 states and 10051 transitions. Word has length 182 [2024-11-18 13:58:22,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:22,111 INFO L471 AbstractCegarLoop]: Abstraction has 6116 states and 10051 transitions. [2024-11-18 13:58:22,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-18 13:58:22,112 INFO L276 IsEmpty]: Start isEmpty. Operand 6116 states and 10051 transitions. [2024-11-18 13:58:22,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-18 13:58:22,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:22,120 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:22,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:22,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-18 13:58:22,321 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:22,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:22,321 INFO L85 PathProgramCache]: Analyzing trace with hash -2080891360, now seen corresponding path program 1 times [2024-11-18 13:58:22,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:22,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257664125] [2024-11-18 13:58:22,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:22,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:22,594 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-18 13:58:22,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:22,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257664125] [2024-11-18 13:58:22,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257664125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:22,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468649244] [2024-11-18 13:58:22,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:22,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:22,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:22,596 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:22,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-18 13:58:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:22,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-18 13:58:23,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:23,155 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-18 13:58:23,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:23,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468649244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:23,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:23,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2024-11-18 13:58:23,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301638684] [2024-11-18 13:58:23,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:23,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 13:58:23,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:23,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 13:58:23,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-18 13:58:23,157 INFO L87 Difference]: Start difference. First operand 6116 states and 10051 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-18 13:58:25,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:25,887 INFO L93 Difference]: Finished difference Result 19118 states and 31983 transitions. [2024-11-18 13:58:25,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 13:58:25,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 184 [2024-11-18 13:58:25,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:25,954 INFO L225 Difference]: With dead ends: 19118 [2024-11-18 13:58:25,954 INFO L226 Difference]: Without dead ends: 10076 [2024-11-18 13:58:25,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2024-11-18 13:58:25,988 INFO L432 NwaCegarLoop]: 413 mSDtfsCounter, 1977 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 4174 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2085 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 4652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 4174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:25,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2085 Valid, 2407 Invalid, 4652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 4174 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-18 13:58:25,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10076 states. [2024-11-18 13:58:26,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10076 to 9995. [2024-11-18 13:58:26,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9995 states, 7684 states have (on average 1.6106194690265487) internal successors, (12376), 7991 states have internal predecessors, (12376), 1724 states have call successors, (1724), 455 states have call predecessors, (1724), 586 states have return successors, (2347), 1696 states have call predecessors, (2347), 1716 states have call successors, (2347) [2024-11-18 13:58:26,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9995 states to 9995 states and 16447 transitions. [2024-11-18 13:58:26,506 INFO L78 Accepts]: Start accepts. Automaton has 9995 states and 16447 transitions. Word has length 184 [2024-11-18 13:58:26,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:26,507 INFO L471 AbstractCegarLoop]: Abstraction has 9995 states and 16447 transitions. [2024-11-18 13:58:26,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2024-11-18 13:58:26,507 INFO L276 IsEmpty]: Start isEmpty. Operand 9995 states and 16447 transitions. [2024-11-18 13:58:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-18 13:58:26,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:26,522 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:26,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-18 13:58:26,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:26,724 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:26,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:26,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1754935536, now seen corresponding path program 1 times [2024-11-18 13:58:26,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:26,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350381951] [2024-11-18 13:58:26,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:26,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-18 13:58:26,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:26,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350381951] [2024-11-18 13:58:26,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350381951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:26,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:58:26,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 13:58:26,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77811946] [2024-11-18 13:58:26,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:26,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 13:58:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:26,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 13:58:26,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 13:58:26,898 INFO L87 Difference]: Start difference. First operand 9995 states and 16447 transitions. Second operand has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-18 13:58:27,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:27,534 INFO L93 Difference]: Finished difference Result 19687 states and 32405 transitions. [2024-11-18 13:58:27,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 13:58:27,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 187 [2024-11-18 13:58:27,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:27,597 INFO L225 Difference]: With dead ends: 19687 [2024-11-18 13:58:27,598 INFO L226 Difference]: Without dead ends: 9377 [2024-11-18 13:58:27,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:58:27,639 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 33 mSDsluCounter, 5134 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5995 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:27,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5995 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:27,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9377 states. [2024-11-18 13:58:28,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9377 to 9353. [2024-11-18 13:58:28,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9353 states, 7277 states have (on average 1.624433145527003) internal successors, (11821), 7559 states have internal predecessors, (11821), 1539 states have call successors, (1539), 431 states have call predecessors, (1539), 536 states have return successors, (1995), 1490 states have call predecessors, (1995), 1531 states have call successors, (1995) [2024-11-18 13:58:28,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9353 states to 9353 states and 15355 transitions. [2024-11-18 13:58:28,244 INFO L78 Accepts]: Start accepts. Automaton has 9353 states and 15355 transitions. Word has length 187 [2024-11-18 13:58:28,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:28,245 INFO L471 AbstractCegarLoop]: Abstraction has 9353 states and 15355 transitions. [2024-11-18 13:58:28,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-18 13:58:28,245 INFO L276 IsEmpty]: Start isEmpty. Operand 9353 states and 15355 transitions. [2024-11-18 13:58:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-18 13:58:28,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:28,269 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:28,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 13:58:28,269 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:28,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:28,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1424000489, now seen corresponding path program 1 times [2024-11-18 13:58:28,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:28,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537075304] [2024-11-18 13:58:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:28,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-18 13:58:29,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:29,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537075304] [2024-11-18 13:58:29,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537075304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:29,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787495591] [2024-11-18 13:58:29,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:29,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:29,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:29,147 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:29,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-18 13:58:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:29,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 4029 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 13:58:29,826 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:29,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-18 13:58:29,874 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:29,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787495591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:29,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:29,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-18 13:58:29,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819367338] [2024-11-18 13:58:29,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:29,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:58:29,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:29,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:58:29,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:29,876 INFO L87 Difference]: Start difference. First operand 9353 states and 15355 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-18 13:58:30,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:30,460 INFO L93 Difference]: Finished difference Result 19205 states and 31957 transitions. [2024-11-18 13:58:30,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:58:30,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 530 [2024-11-18 13:58:30,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:30,543 INFO L225 Difference]: With dead ends: 19205 [2024-11-18 13:58:30,543 INFO L226 Difference]: Without dead ends: 14279 [2024-11-18 13:58:30,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:30,575 INFO L432 NwaCegarLoop]: 896 mSDtfsCounter, 880 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:30,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 1742 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:58:30,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14279 states. [2024-11-18 13:58:31,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14279 to 14277. [2024-11-18 13:58:31,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14277 states, 11057 states have (on average 1.6236773084923577) internal successors, (17953), 11514 states have internal predecessors, (17953), 2406 states have call successors, (2406), 655 states have call predecessors, (2406), 813 states have return successors, (3291), 2363 states have call predecessors, (3291), 2394 states have call successors, (3291) [2024-11-18 13:58:31,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14277 states to 14277 states and 23650 transitions. [2024-11-18 13:58:31,413 INFO L78 Accepts]: Start accepts. Automaton has 14277 states and 23650 transitions. Word has length 530 [2024-11-18 13:58:31,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:31,415 INFO L471 AbstractCegarLoop]: Abstraction has 14277 states and 23650 transitions. [2024-11-18 13:58:31,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-18 13:58:31,415 INFO L276 IsEmpty]: Start isEmpty. Operand 14277 states and 23650 transitions. [2024-11-18 13:58:31,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-18 13:58:31,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:31,435 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:31,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-18 13:58:31,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:31,636 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:31,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:31,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1312874991, now seen corresponding path program 1 times [2024-11-18 13:58:31,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:31,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101721816] [2024-11-18 13:58:31,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:31,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:32,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-18 13:58:32,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:32,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101721816] [2024-11-18 13:58:32,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101721816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:32,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444674698] [2024-11-18 13:58:32,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:32,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:32,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:32,278 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:32,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-18 13:58:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:32,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 4030 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:32,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:32,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-18 13:58:32,987 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:32,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444674698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:32,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:32,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:32,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180124797] [2024-11-18 13:58:32,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:32,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:32,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:32,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:32,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:32,992 INFO L87 Difference]: Start difference. First operand 14277 states and 23650 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-18 13:58:33,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:33,566 INFO L93 Difference]: Finished difference Result 28647 states and 47979 transitions. [2024-11-18 13:58:33,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:33,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 531 [2024-11-18 13:58:33,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:33,639 INFO L225 Difference]: With dead ends: 28647 [2024-11-18 13:58:33,639 INFO L226 Difference]: Without dead ends: 14412 [2024-11-18 13:58:33,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:33,693 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 22 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:33,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2571 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:58:33,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14412 states. [2024-11-18 13:58:34,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14412 to 14412. [2024-11-18 13:58:34,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14412 states, 11177 states have (on average 1.625033551042319) internal successors, (18163), 11634 states have internal predecessors, (18163), 2406 states have call successors, (2406), 670 states have call predecessors, (2406), 828 states have return successors, (3291), 2363 states have call predecessors, (3291), 2394 states have call successors, (3291) [2024-11-18 13:58:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14412 states to 14412 states and 23860 transitions. [2024-11-18 13:58:34,691 INFO L78 Accepts]: Start accepts. Automaton has 14412 states and 23860 transitions. Word has length 531 [2024-11-18 13:58:34,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:34,693 INFO L471 AbstractCegarLoop]: Abstraction has 14412 states and 23860 transitions. [2024-11-18 13:58:34,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-18 13:58:34,693 INFO L276 IsEmpty]: Start isEmpty. Operand 14412 states and 23860 transitions. [2024-11-18 13:58:34,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-18 13:58:34,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:34,716 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:34,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:34,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:34,917 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:34,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:34,918 INFO L85 PathProgramCache]: Analyzing trace with hash 951030855, now seen corresponding path program 1 times [2024-11-18 13:58:34,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:34,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87586723] [2024-11-18 13:58:34,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:34,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-18 13:58:35,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:35,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87586723] [2024-11-18 13:58:35,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87586723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:35,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828992349] [2024-11-18 13:58:35,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:35,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:35,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:35,766 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:35,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-18 13:58:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:36,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 4031 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:36,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:36,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 656 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2024-11-18 13:58:36,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:36,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828992349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:36,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:36,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:36,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048715982] [2024-11-18 13:58:36,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:36,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:36,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:36,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:36,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:36,518 INFO L87 Difference]: Start difference. First operand 14412 states and 23860 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-18 13:58:37,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:37,309 INFO L93 Difference]: Finished difference Result 28917 states and 48339 transitions. [2024-11-18 13:58:37,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:37,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 532 [2024-11-18 13:58:37,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:37,388 INFO L225 Difference]: With dead ends: 28917 [2024-11-18 13:58:37,388 INFO L226 Difference]: Without dead ends: 14547 [2024-11-18 13:58:37,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:37,442 INFO L432 NwaCegarLoop]: 863 mSDtfsCounter, 20 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:37,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2565 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:37,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14547 states. [2024-11-18 13:58:38,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14547 to 14547. [2024-11-18 13:58:38,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14547 states, 11297 states have (on average 1.6263609807913606) internal successors, (18373), 11754 states have internal predecessors, (18373), 2406 states have call successors, (2406), 685 states have call predecessors, (2406), 843 states have return successors, (3291), 2363 states have call predecessors, (3291), 2394 states have call successors, (3291) [2024-11-18 13:58:38,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14547 states to 14547 states and 24070 transitions. [2024-11-18 13:58:38,189 INFO L78 Accepts]: Start accepts. Automaton has 14547 states and 24070 transitions. Word has length 532 [2024-11-18 13:58:38,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:38,190 INFO L471 AbstractCegarLoop]: Abstraction has 14547 states and 24070 transitions. [2024-11-18 13:58:38,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-18 13:58:38,191 INFO L276 IsEmpty]: Start isEmpty. Operand 14547 states and 24070 transitions. [2024-11-18 13:58:38,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-18 13:58:38,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:38,206 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:38,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-18 13:58:38,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:38,407 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:38,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:38,408 INFO L85 PathProgramCache]: Analyzing trace with hash 858295147, now seen corresponding path program 1 times [2024-11-18 13:58:38,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:38,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078733656] [2024-11-18 13:58:38,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:38,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:39,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-18 13:58:39,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:39,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078733656] [2024-11-18 13:58:39,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078733656] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:39,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785546043] [2024-11-18 13:58:39,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:39,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:39,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:39,022 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:39,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-18 13:58:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:39,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 4032 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-18 13:58:39,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:40,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 675 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2024-11-18 13:58:40,141 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:40,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785546043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:40,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:40,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2024-11-18 13:58:40,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931779754] [2024-11-18 13:58:40,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:40,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 13:58:40,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:40,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 13:58:40,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-11-18 13:58:40,144 INFO L87 Difference]: Start difference. First operand 14547 states and 24070 transitions. Second operand has 9 states, 9 states have (on average 25.11111111111111) internal successors, (226), 8 states have internal predecessors, (226), 6 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) [2024-11-18 13:58:45,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:45,777 INFO L93 Difference]: Finished difference Result 50802 states and 86423 transitions. [2024-11-18 13:58:45,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 13:58:45,777 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 25.11111111111111) internal successors, (226), 8 states have internal predecessors, (226), 6 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) Word has length 533 [2024-11-18 13:58:45,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:45,998 INFO L225 Difference]: With dead ends: 50802 [2024-11-18 13:58:45,998 INFO L226 Difference]: Without dead ends: 36260 [2024-11-18 13:58:46,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2024-11-18 13:58:46,094 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 2366 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 7913 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 8506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 7913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:46,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2543 Valid, 2642 Invalid, 8506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 7913 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-18 13:58:46,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36260 states. [2024-11-18 13:58:48,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36260 to 35160. [2024-11-18 13:58:48,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35160 states, 27606 states have (on average 1.6240672317612113) internal successors, (44834), 28594 states have internal predecessors, (44834), 5523 states have call successors, (5523), 1741 states have call predecessors, (5523), 2030 states have return successors, (8298), 5444 states have call predecessors, (8298), 5494 states have call successors, (8298) [2024-11-18 13:58:48,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35160 states to 35160 states and 58655 transitions. [2024-11-18 13:58:48,198 INFO L78 Accepts]: Start accepts. Automaton has 35160 states and 58655 transitions. Word has length 533 [2024-11-18 13:58:48,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:48,199 INFO L471 AbstractCegarLoop]: Abstraction has 35160 states and 58655 transitions. [2024-11-18 13:58:48,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.11111111111111) internal successors, (226), 8 states have internal predecessors, (226), 6 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) [2024-11-18 13:58:48,199 INFO L276 IsEmpty]: Start isEmpty. Operand 35160 states and 58655 transitions. [2024-11-18 13:58:48,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-18 13:58:48,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:48,216 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:48,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:48,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:48,421 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:48,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:48,421 INFO L85 PathProgramCache]: Analyzing trace with hash -448240783, now seen corresponding path program 1 times [2024-11-18 13:58:48,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:48,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978107680] [2024-11-18 13:58:48,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:48,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:48,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-18 13:58:48,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:48,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978107680] [2024-11-18 13:58:48,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978107680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:48,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110377481] [2024-11-18 13:58:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:48,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:48,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:48,964 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:48,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-18 13:58:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:49,617 INFO L255 TraceCheckSpWp]: Trace formula consists of 4032 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:49,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2024-11-18 13:58:49,655 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:49,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110377481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:49,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:49,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-18 13:58:49,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457368482] [2024-11-18 13:58:49,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:49,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:49,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:49,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:49,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:49,657 INFO L87 Difference]: Start difference. First operand 35160 states and 58655 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-18 13:58:52,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:52,065 INFO L93 Difference]: Finished difference Result 70295 states and 118198 transitions. [2024-11-18 13:58:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:52,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 533 [2024-11-18 13:58:52,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:52,326 INFO L225 Difference]: With dead ends: 70295 [2024-11-18 13:58:52,327 INFO L226 Difference]: Without dead ends: 35596 [2024-11-18 13:58:52,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:58:52,512 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 18 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2559 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:52,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2559 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:58:52,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35596 states. [2024-11-18 13:58:54,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35596 to 35538. [2024-11-18 13:58:54,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35538 states, 27942 states have (on average 1.6255099849688641) internal successors, (45420), 28930 states have internal predecessors, (45420), 5523 states have call successors, (5523), 1783 states have call predecessors, (5523), 2072 states have return successors, (7998), 5444 states have call predecessors, (7998), 5494 states have call successors, (7998) [2024-11-18 13:58:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35538 states to 35538 states and 58941 transitions. [2024-11-18 13:58:54,583 INFO L78 Accepts]: Start accepts. Automaton has 35538 states and 58941 transitions. Word has length 533 [2024-11-18 13:58:54,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:54,584 INFO L471 AbstractCegarLoop]: Abstraction has 35538 states and 58941 transitions. [2024-11-18 13:58:54,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-18 13:58:54,584 INFO L276 IsEmpty]: Start isEmpty. Operand 35538 states and 58941 transitions. [2024-11-18 13:58:54,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-18 13:58:54,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:54,604 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:54,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-18 13:58:54,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:54,805 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:54,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:54,806 INFO L85 PathProgramCache]: Analyzing trace with hash 262783321, now seen corresponding path program 1 times [2024-11-18 13:58:54,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:54,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986248422] [2024-11-18 13:58:54,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:54,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:55,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-18 13:58:55,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:55,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986248422] [2024-11-18 13:58:55,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986248422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:55,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191266838] [2024-11-18 13:58:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:55,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:55,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:55,527 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:55,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process