./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product24.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 d9a9e332bba43f0e6d965514fc764881b170e0a0500d860d4fcce12986d98914 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:42:43,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:42:43,357 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:42:43,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:42:43,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:42:43,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:42:43,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:42:43,392 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:42:43,392 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:42:43,395 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:42:43,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:42:43,395 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:42:43,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:42:43,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:42:43,396 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:42:43,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:42:43,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:42:43,398 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:42:43,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:42:43,399 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:42:43,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:42:43,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:42:43,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:42:43,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:42:43,400 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:42:43,400 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:42:43,400 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:42:43,400 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:42:43,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:42:43,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:42:43,401 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:42:43,401 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:42:43,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:42:43,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:42:43,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:42:43,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:42:43,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:42:43,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:42:43,402 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:42:43,402 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:42:43,402 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:42:43,404 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:42:43,405 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9a9e332bba43f0e6d965514fc764881b170e0a0500d860d4fcce12986d98914 [2024-11-22 01:42:43,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:42:43,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:42:43,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:42:43,647 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:42:43,647 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:42:43,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c [2024-11-22 01:42:44,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:42:45,846 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:42:45,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c [2024-11-22 01:42:45,865 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00196e013/2754e7f5b5db4a258a6b04048f9b578d/FLAG067c337c2 [2024-11-22 01:42:45,891 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00196e013/2754e7f5b5db4a258a6b04048f9b578d [2024-11-22 01:42:45,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:42:45,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:42:45,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:42:45,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:42:45,900 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:42:45,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:42:45" (1/1) ... [2024-11-22 01:42:45,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63969899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:45, skipping insertion in model container [2024-11-22 01:42:45,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:42:45" (1/1) ... [2024-11-22 01:42:45,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:42:46,383 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_product24.cil.c[71679,71692] [2024-11-22 01:42:46,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:42:46,397 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:42:46,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-22 01:42:46,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [408] [2024-11-22 01:42:46,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [422] [2024-11-22 01:42:46,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [467] [2024-11-22 01:42:46,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2112] [2024-11-22 01:42:46,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2773] [2024-11-22 01:42:46,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3139] [2024-11-22 01:42:46,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3174] [2024-11-22 01:42:46,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3292] [2024-11-22 01:42:46,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3383] [2024-11-22 01:42:46,498 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_product24.cil.c[71679,71692] [2024-11-22 01:42:46,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:42:46,524 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:42:46,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46 WrapperNode [2024-11-22 01:42:46,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:42:46,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:42:46,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:42:46,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:42:46,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,594 INFO L138 Inliner]: procedures = 95, calls = 346, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 862 [2024-11-22 01:42:46,596 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:42:46,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:42:46,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:42:46,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:42:46,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,616 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,645 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-22 01:42:46,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,663 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,682 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:42:46,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:42:46,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:42:46,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:42:46,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (1/1) ... [2024-11-22 01:42:46,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:42:46,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:42:46,750 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) [2024-11-22 01:42:46,752 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 [2024-11-22 01:42:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:42:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-22 01:42:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-22 01:42:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-22 01:42:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-22 01:42:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-22 01:42:46,791 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-22 01:42:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-22 01:42:46,792 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-22 01:42:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-22 01:42:46,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-22 01:42:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-22 01:42:46,793 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-22 01:42:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-22 01:42:46,793 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-22 01:42:46,793 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-22 01:42:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-22 01:42:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 01:42:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 01:42:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 01:42:46,794 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 01:42:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-22 01:42:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-22 01:42:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-22 01:42:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-22 01:42:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-22 01:42:46,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-22 01:42:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-22 01:42:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-22 01:42:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-22 01:42:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-22 01:42:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-22 01:42:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-22 01:42:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-22 01:42:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-22 01:42:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-22 01:42:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-22 01:42:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-22 01:42:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-22 01:42:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-22 01:42:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-22 01:42:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:42:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:42:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:42:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:42:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 01:42:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 01:42:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 01:42:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 01:42:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 01:42:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 01:42:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 01:42:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 01:42:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 01:42:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 01:42:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 01:42:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 01:42:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 01:42:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-22 01:42:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-22 01:42:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-22 01:42:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-22 01:42:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-22 01:42:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-22 01:42:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-22 01:42:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-22 01:42:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-22 01:42:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-22 01:42:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-22 01:42:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-22 01:42:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-22 01:42:46,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:42:46,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:42:46,804 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-22 01:42:46,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-22 01:42:46,804 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-11-22 01:42:46,804 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-11-22 01:42:46,944 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:42:46,947 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:42:47,871 INFO L? ?]: Removed 463 outVars from TransFormulas that were not future-live. [2024-11-22 01:42:47,871 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:42:47,895 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:42:47,897 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:42:47,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:42:47 BoogieIcfgContainer [2024-11-22 01:42:47,898 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:42:47,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:42:47,899 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:42:47,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:42:47,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:42:45" (1/3) ... [2024-11-22 01:42:47,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59da1038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:42:47, skipping insertion in model container [2024-11-22 01:42:47,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:46" (2/3) ... [2024-11-22 01:42:47,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59da1038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:42:47, skipping insertion in model container [2024-11-22 01:42:47,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:42:47" (3/3) ... [2024-11-22 01:42:47,904 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product24.cil.c [2024-11-22 01:42:47,920 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:42:47,921 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:42:47,997 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:42:48,003 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;@1a66a8a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:42:48,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:42:48,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 572 states, 440 states have (on average 1.6590909090909092) internal successors, (730), 458 states have internal predecessors, (730), 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) [2024-11-22 01:42:48,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-22 01:42:48,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:48,026 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] [2024-11-22 01:42:48,026 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:48,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:48,031 INFO L85 PathProgramCache]: Analyzing trace with hash -404467648, now seen corresponding path program 1 times [2024-11-22 01:42:48,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:48,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050371071] [2024-11-22 01:42:48,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:48,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:48,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:48,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:48,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050371071] [2024-11-22 01:42:48,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050371071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:48,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:48,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:42:48,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303515410] [2024-11-22 01:42:48,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:48,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:42:48,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:48,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:42:48,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:42:48,516 INFO L87 Difference]: Start difference. First operand has 572 states, 440 states have (on average 1.6590909090909092) internal successors, (730), 458 states have internal predecessors, (730), 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) [2024-11-22 01:42:48,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:48,710 INFO L93 Difference]: Finished difference Result 1137 states and 1872 transitions. [2024-11-22 01:42:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:42:48,713 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 [2024-11-22 01:42:48,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:48,733 INFO L225 Difference]: With dead ends: 1137 [2024-11-22 01:42:48,733 INFO L226 Difference]: Without dead ends: 567 [2024-11-22 01:42:48,742 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 [2024-11-22 01:42:48,747 INFO L432 NwaCegarLoop]: 919 mSDtfsCounter, 6 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:42:48,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2751 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:42:48,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-22 01:42:48,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2024-11-22 01:42:48,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.6490825688073394) internal successors, (719), 453 states have internal predecessors, (719), 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) [2024-11-22 01:42:48,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 924 transitions. [2024-11-22 01:42:48,824 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 924 transitions. Word has length 63 [2024-11-22 01:42:48,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:48,825 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 924 transitions. [2024-11-22 01:42:48,826 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) [2024-11-22 01:42:48,826 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 924 transitions. [2024-11-22 01:42:48,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-22 01:42:48,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:48,833 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] [2024-11-22 01:42:48,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 01:42:48,833 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:48,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash -195549372, now seen corresponding path program 1 times [2024-11-22 01:42:48,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:48,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575242208] [2024-11-22 01:42:48,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:48,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:48,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:48,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:48,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575242208] [2024-11-22 01:42:48,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575242208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:48,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:48,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:42:48,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944418428] [2024-11-22 01:42:48,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:48,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:42:48,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:48,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:42:48,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:42:48,999 INFO L87 Difference]: Start difference. First operand 567 states and 924 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) [2024-11-22 01:42:49,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:49,084 INFO L93 Difference]: Finished difference Result 1117 states and 1825 transitions. [2024-11-22 01:42:49,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:42:49,085 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 [2024-11-22 01:42:49,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:49,090 INFO L225 Difference]: With dead ends: 1117 [2024-11-22 01:42:49,090 INFO L226 Difference]: Without dead ends: 567 [2024-11-22 01:42:49,093 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 [2024-11-22 01:42:49,095 INFO L432 NwaCegarLoop]: 910 mSDtfsCounter, 4 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2723 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 [2024-11-22 01:42:49,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2723 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:42:49,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-22 01:42:49,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2024-11-22 01:42:49,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.646788990825688) internal successors, (718), 453 states have internal predecessors, (718), 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) [2024-11-22 01:42:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 923 transitions. [2024-11-22 01:42:49,135 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 923 transitions. Word has length 64 [2024-11-22 01:42:49,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:49,135 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 923 transitions. [2024-11-22 01:42:49,135 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) [2024-11-22 01:42:49,136 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 923 transitions. [2024-11-22 01:42:49,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 01:42:49,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:49,139 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:42:49,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 01:42:49,140 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:49,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:49,143 INFO L85 PathProgramCache]: Analyzing trace with hash 767662652, now seen corresponding path program 1 times [2024-11-22 01:42:49,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:49,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395161089] [2024-11-22 01:42:49,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:49,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:49,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:49,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:49,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395161089] [2024-11-22 01:42:49,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395161089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:49,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:49,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:42:49,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734750876] [2024-11-22 01:42:49,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:49,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:42:49,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:49,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:42:49,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:42:49,281 INFO L87 Difference]: Start difference. First operand 567 states and 923 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) [2024-11-22 01:42:49,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:49,340 INFO L93 Difference]: Finished difference Result 1117 states and 1824 transitions. [2024-11-22 01:42:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:42:49,341 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 [2024-11-22 01:42:49,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:49,345 INFO L225 Difference]: With dead ends: 1117 [2024-11-22 01:42:49,345 INFO L226 Difference]: Without dead ends: 567 [2024-11-22 01:42:49,347 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 [2024-11-22 01:42:49,348 INFO L432 NwaCegarLoop]: 910 mSDtfsCounter, 3 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2723 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 [2024-11-22 01:42:49,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2723 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:42:49,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-22 01:42:49,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2024-11-22 01:42:49,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.6444954128440368) internal successors, (717), 453 states have internal predecessors, (717), 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) [2024-11-22 01:42:49,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 922 transitions. [2024-11-22 01:42:49,370 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 922 transitions. Word has length 65 [2024-11-22 01:42:49,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:49,370 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 922 transitions. [2024-11-22 01:42:49,371 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) [2024-11-22 01:42:49,371 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 922 transitions. [2024-11-22 01:42:49,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 01:42:49,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:49,374 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] [2024-11-22 01:42:49,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 01:42:49,375 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:49,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:49,376 INFO L85 PathProgramCache]: Analyzing trace with hash -655822912, now seen corresponding path program 1 times [2024-11-22 01:42:49,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:49,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140832007] [2024-11-22 01:42:49,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:49,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:49,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:49,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:49,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140832007] [2024-11-22 01:42:49,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140832007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:49,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:49,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:42:49,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129625812] [2024-11-22 01:42:49,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:49,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:42:49,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:49,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:42:49,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:42:49,488 INFO L87 Difference]: Start difference. First operand 567 states and 922 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) [2024-11-22 01:42:49,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:49,534 INFO L93 Difference]: Finished difference Result 1117 states and 1823 transitions. [2024-11-22 01:42:49,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:42:49,535 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 [2024-11-22 01:42:49,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:49,538 INFO L225 Difference]: With dead ends: 1117 [2024-11-22 01:42:49,538 INFO L226 Difference]: Without dead ends: 567 [2024-11-22 01:42:49,540 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 [2024-11-22 01:42:49,541 INFO L432 NwaCegarLoop]: 910 mSDtfsCounter, 2 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2723 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 [2024-11-22 01:42:49,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2723 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:42:49,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-22 01:42:49,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2024-11-22 01:42:49,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.6422018348623852) internal successors, (716), 453 states have internal predecessors, (716), 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) [2024-11-22 01:42:49,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 921 transitions. [2024-11-22 01:42:49,555 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 921 transitions. Word has length 66 [2024-11-22 01:42:49,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:49,556 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 921 transitions. [2024-11-22 01:42:49,556 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) [2024-11-22 01:42:49,556 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 921 transitions. [2024-11-22 01:42:49,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 01:42:49,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:49,557 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] [2024-11-22 01:42:49,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 01:42:49,557 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:49,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:49,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1242477624, now seen corresponding path program 1 times [2024-11-22 01:42:49,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:49,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670803136] [2024-11-22 01:42:49,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:49,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:49,628 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:49,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:49,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670803136] [2024-11-22 01:42:49,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670803136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:49,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:49,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:42:49,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756223626] [2024-11-22 01:42:49,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:49,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:42:49,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:49,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:42:49,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:42:49,629 INFO L87 Difference]: Start difference. First operand 567 states and 921 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) [2024-11-22 01:42:49,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:49,670 INFO L93 Difference]: Finished difference Result 1117 states and 1822 transitions. [2024-11-22 01:42:49,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:42:49,671 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 [2024-11-22 01:42:49,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:49,674 INFO L225 Difference]: With dead ends: 1117 [2024-11-22 01:42:49,674 INFO L226 Difference]: Without dead ends: 567 [2024-11-22 01:42:49,677 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 [2024-11-22 01:42:49,679 INFO L432 NwaCegarLoop]: 910 mSDtfsCounter, 1 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2723 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 [2024-11-22 01:42:49,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2723 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:42:49,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-22 01:42:49,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2024-11-22 01:42:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.639908256880734) internal successors, (715), 453 states have internal predecessors, (715), 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) [2024-11-22 01:42:49,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 920 transitions. [2024-11-22 01:42:49,698 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 920 transitions. Word has length 67 [2024-11-22 01:42:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:49,699 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 920 transitions. [2024-11-22 01:42:49,699 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) [2024-11-22 01:42:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 920 transitions. [2024-11-22 01:42:49,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 01:42:49,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:49,701 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] [2024-11-22 01:42:49,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 01:42:49,701 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:49,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:49,702 INFO L85 PathProgramCache]: Analyzing trace with hash -488865125, now seen corresponding path program 1 times [2024-11-22 01:42:49,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:49,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333881817] [2024-11-22 01:42:49,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:49,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:49,802 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:49,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:49,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333881817] [2024-11-22 01:42:49,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333881817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:49,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:49,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:42:49,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51502762] [2024-11-22 01:42:49,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:49,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:42:49,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:49,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:42:49,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:42:49,805 INFO L87 Difference]: Start difference. First operand 567 states and 920 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) [2024-11-22 01:42:49,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:49,853 INFO L93 Difference]: Finished difference Result 1117 states and 1821 transitions. [2024-11-22 01:42:49,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:42:49,854 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 [2024-11-22 01:42:49,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:49,861 INFO L225 Difference]: With dead ends: 1117 [2024-11-22 01:42:49,861 INFO L226 Difference]: Without dead ends: 567 [2024-11-22 01:42:49,864 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 [2024-11-22 01:42:49,865 INFO L432 NwaCegarLoop]: 908 mSDtfsCounter, 1 mSDsluCounter, 1810 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2718 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 [2024-11-22 01:42:49,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2718 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:42:49,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-22 01:42:49,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2024-11-22 01:42:49,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 436 states have (on average 1.6376146788990826) internal successors, (714), 453 states have internal predecessors, (714), 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) [2024-11-22 01:42:49,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 919 transitions. [2024-11-22 01:42:49,890 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 919 transitions. Word has length 68 [2024-11-22 01:42:49,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:49,890 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 919 transitions. [2024-11-22 01:42:49,891 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) [2024-11-22 01:42:49,891 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 919 transitions. [2024-11-22 01:42:49,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 01:42:49,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:49,892 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] [2024-11-22 01:42:49,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:42:49,892 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:49,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:49,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1258035140, now seen corresponding path program 1 times [2024-11-22 01:42:49,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:49,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518325100] [2024-11-22 01:42:49,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:49,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:50,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:50,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:50,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518325100] [2024-11-22 01:42:50,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518325100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:50,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:50,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:42:50,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047182948] [2024-11-22 01:42:50,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:50,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:42:50,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:50,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:42:50,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:42:50,021 INFO L87 Difference]: Start difference. First operand 567 states and 919 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) [2024-11-22 01:42:50,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:50,095 INFO L93 Difference]: Finished difference Result 1122 states and 1830 transitions. [2024-11-22 01:42:50,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:42:50,096 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 [2024-11-22 01:42:50,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:50,099 INFO L225 Difference]: With dead ends: 1122 [2024-11-22 01:42:50,100 INFO L226 Difference]: Without dead ends: 576 [2024-11-22 01:42:50,101 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 [2024-11-22 01:42:50,102 INFO L432 NwaCegarLoop]: 904 mSDtfsCounter, 91 mSDsluCounter, 4435 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5339 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:42:50,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5339 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:42:50,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-22 01:42:50,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2024-11-22 01:42:50,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 444 states have (on average 1.6373873873873874) internal successors, (727), 462 states have internal predecessors, (727), 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) [2024-11-22 01:42:50,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 933 transitions. [2024-11-22 01:42:50,116 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 933 transitions. Word has length 68 [2024-11-22 01:42:50,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:50,116 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 933 transitions. [2024-11-22 01:42:50,117 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) [2024-11-22 01:42:50,117 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 933 transitions. [2024-11-22 01:42:50,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 01:42:50,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:50,118 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] [2024-11-22 01:42:50,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:42:50,118 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:50,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:50,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1653788734, now seen corresponding path program 1 times [2024-11-22 01:42:50,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:50,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754666296] [2024-11-22 01:42:50,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:50,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:50,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:50,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:50,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754666296] [2024-11-22 01:42:50,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754666296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:50,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:50,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:42:50,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441422392] [2024-11-22 01:42:50,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:50,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:42:50,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:50,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:42:50,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:42:50,229 INFO L87 Difference]: Start difference. First operand 576 states and 933 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) [2024-11-22 01:42:50,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:50,448 INFO L93 Difference]: Finished difference Result 1178 states and 1922 transitions. [2024-11-22 01:42:50,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:42:50,449 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 [2024-11-22 01:42:50,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:50,454 INFO L225 Difference]: With dead ends: 1178 [2024-11-22 01:42:50,458 INFO L226 Difference]: Without dead ends: 608 [2024-11-22 01:42:50,463 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 [2024-11-22 01:42:50,464 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 72 mSDsluCounter, 3449 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4331 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 [2024-11-22 01:42:50,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4331 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:42:50,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-22 01:42:50,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 581. [2024-11-22 01:42:50,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 449 states have (on average 1.623608017817372) internal successors, (729), 466 states have internal predecessors, (729), 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) [2024-11-22 01:42:50,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 934 transitions. [2024-11-22 01:42:50,489 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 934 transitions. Word has length 69 [2024-11-22 01:42:50,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:50,489 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 934 transitions. [2024-11-22 01:42:50,489 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) [2024-11-22 01:42:50,489 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 934 transitions. [2024-11-22 01:42:50,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-22 01:42:50,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:50,490 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] [2024-11-22 01:42:50,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:42:50,491 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:50,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:50,491 INFO L85 PathProgramCache]: Analyzing trace with hash -775184289, now seen corresponding path program 1 times [2024-11-22 01:42:50,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:50,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346543074] [2024-11-22 01:42:50,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:50,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:50,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:50,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:50,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346543074] [2024-11-22 01:42:50,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346543074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:50,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:50,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:42:50,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032377283] [2024-11-22 01:42:50,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:50,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:42:50,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:50,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:42:50,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:42:50,601 INFO L87 Difference]: Start difference. First operand 581 states and 934 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) [2024-11-22 01:42:50,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:50,761 INFO L93 Difference]: Finished difference Result 1129 states and 1817 transitions. [2024-11-22 01:42:50,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:42:50,762 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 [2024-11-22 01:42:50,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:50,767 INFO L225 Difference]: With dead ends: 1129 [2024-11-22 01:42:50,768 INFO L226 Difference]: Without dead ends: 599 [2024-11-22 01:42:50,770 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 [2024-11-22 01:42:50,772 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 56 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4308 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:42:50,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4308 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:42:50,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-22 01:42:50,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 581. [2024-11-22 01:42:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 449 states have (on average 1.6146993318485523) internal successors, (725), 466 states have internal predecessors, (725), 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) [2024-11-22 01:42:50,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 930 transitions. [2024-11-22 01:42:50,802 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 930 transitions. Word has length 70 [2024-11-22 01:42:50,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:50,803 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 930 transitions. [2024-11-22 01:42:50,803 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) [2024-11-22 01:42:50,803 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 930 transitions. [2024-11-22 01:42:50,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 01:42:50,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:50,804 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] [2024-11-22 01:42:50,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:42:50,804 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:50,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:50,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1322295523, now seen corresponding path program 1 times [2024-11-22 01:42:50,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:50,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167573228] [2024-11-22 01:42:50,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:50,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:50,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:50,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167573228] [2024-11-22 01:42:50,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167573228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:50,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:50,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:42:50,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920682072] [2024-11-22 01:42:50,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:50,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:42:50,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:50,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:42:50,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:42:50,908 INFO L87 Difference]: Start difference. First operand 581 states and 930 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) [2024-11-22 01:42:51,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:51,056 INFO L93 Difference]: Finished difference Result 1129 states and 1813 transitions. [2024-11-22 01:42:51,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:42:51,057 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 [2024-11-22 01:42:51,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:51,064 INFO L225 Difference]: With dead ends: 1129 [2024-11-22 01:42:51,064 INFO L226 Difference]: Without dead ends: 599 [2024-11-22 01:42:51,066 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 [2024-11-22 01:42:51,067 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 55 mSDsluCounter, 3433 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4303 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 [2024-11-22 01:42:51,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4303 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:42:51,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-11-22 01:42:51,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 581. [2024-11-22 01:42:51,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 449 states have (on average 1.6057906458797326) internal successors, (721), 466 states have internal predecessors, (721), 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) [2024-11-22 01:42:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 926 transitions. [2024-11-22 01:42:51,084 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 926 transitions. Word has length 71 [2024-11-22 01:42:51,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:51,085 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 926 transitions. [2024-11-22 01:42:51,085 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) [2024-11-22 01:42:51,086 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 926 transitions. [2024-11-22 01:42:51,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 01:42:51,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:51,087 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] [2024-11-22 01:42:51,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:42:51,087 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:51,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:51,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1144511843, now seen corresponding path program 1 times [2024-11-22 01:42:51,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:51,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711303277] [2024-11-22 01:42:51,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:51,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:51,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:51,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:51,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711303277] [2024-11-22 01:42:51,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711303277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:51,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:51,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:42:51,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484823398] [2024-11-22 01:42:51,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:51,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:42:51,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:51,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:42:51,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:42:51,187 INFO L87 Difference]: Start difference. First operand 581 states and 926 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) [2024-11-22 01:42:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:51,272 INFO L93 Difference]: Finished difference Result 1120 states and 1795 transitions. [2024-11-22 01:42:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:42:51,273 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 [2024-11-22 01:42:51,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:51,278 INFO L225 Difference]: With dead ends: 1120 [2024-11-22 01:42:51,279 INFO L226 Difference]: Without dead ends: 569 [2024-11-22 01:42:51,281 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 [2024-11-22 01:42:51,282 INFO L432 NwaCegarLoop]: 896 mSDtfsCounter, 94 mSDsluCounter, 4384 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 5280 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 [2024-11-22 01:42:51,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 5280 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:42:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-22 01:42:51,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 560. [2024-11-22 01:42:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 428 states have (on average 1.5981308411214954) internal successors, (684), 445 states have internal predecessors, (684), 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) [2024-11-22 01:42:51,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 889 transitions. [2024-11-22 01:42:51,298 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 889 transitions. Word has length 71 [2024-11-22 01:42:51,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:51,298 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 889 transitions. [2024-11-22 01:42:51,298 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) [2024-11-22 01:42:51,298 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 889 transitions. [2024-11-22 01:42:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 01:42:51,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:51,299 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] [2024-11-22 01:42:51,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 01:42:51,300 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:51,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:51,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2005892452, now seen corresponding path program 1 times [2024-11-22 01:42:51,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:51,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206498348] [2024-11-22 01:42:51,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:51,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:51,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:51,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:51,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206498348] [2024-11-22 01:42:51,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206498348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:51,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:51,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:42:51,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636868471] [2024-11-22 01:42:51,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:51,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:42:51,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:51,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:42:51,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:42:51,429 INFO L87 Difference]: Start difference. First operand 560 states and 889 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) [2024-11-22 01:42:51,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:51,508 INFO L93 Difference]: Finished difference Result 1099 states and 1758 transitions. [2024-11-22 01:42:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:42:51,509 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 [2024-11-22 01:42:51,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:51,512 INFO L225 Difference]: With dead ends: 1099 [2024-11-22 01:42:51,512 INFO L226 Difference]: Without dead ends: 569 [2024-11-22 01:42:51,515 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 [2024-11-22 01:42:51,515 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 39 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4308 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 [2024-11-22 01:42:51,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4308 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:42:51,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-22 01:42:51,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 560. [2024-11-22 01:42:51,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 428 states have (on average 1.5957943925233644) internal successors, (683), 445 states have internal predecessors, (683), 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) [2024-11-22 01:42:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 888 transitions. [2024-11-22 01:42:51,530 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 888 transitions. Word has length 72 [2024-11-22 01:42:51,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:51,530 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 888 transitions. [2024-11-22 01:42:51,530 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) [2024-11-22 01:42:51,530 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 888 transitions. [2024-11-22 01:42:51,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 01:42:51,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:51,532 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] [2024-11-22 01:42:51,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:42:51,532 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:51,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:51,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1808792968, now seen corresponding path program 1 times [2024-11-22 01:42:51,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:51,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864040397] [2024-11-22 01:42:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:51,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:51,656 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:51,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:51,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864040397] [2024-11-22 01:42:51,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864040397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:51,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:51,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:42:51,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591039998] [2024-11-22 01:42:51,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:51,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:42:51,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:51,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:42:51,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:42:51,658 INFO L87 Difference]: Start difference. First operand 560 states and 888 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) [2024-11-22 01:42:51,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:51,750 INFO L93 Difference]: Finished difference Result 1099 states and 1757 transitions. [2024-11-22 01:42:51,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:42:51,751 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 [2024-11-22 01:42:51,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:51,756 INFO L225 Difference]: With dead ends: 1099 [2024-11-22 01:42:51,756 INFO L226 Difference]: Without dead ends: 569 [2024-11-22 01:42:51,759 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 [2024-11-22 01:42:51,760 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 38 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4308 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 [2024-11-22 01:42:51,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4308 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:42:51,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-22 01:42:51,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 560. [2024-11-22 01:42:51,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 428 states have (on average 1.5934579439252337) internal successors, (682), 445 states have internal predecessors, (682), 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) [2024-11-22 01:42:51,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 887 transitions. [2024-11-22 01:42:51,779 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 887 transitions. Word has length 73 [2024-11-22 01:42:51,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:51,779 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 887 transitions. [2024-11-22 01:42:51,779 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) [2024-11-22 01:42:51,780 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 887 transitions. [2024-11-22 01:42:51,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 01:42:51,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:51,781 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] [2024-11-22 01:42:51,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:42:51,781 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:51,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:51,781 INFO L85 PathProgramCache]: Analyzing trace with hash 973394795, now seen corresponding path program 1 times [2024-11-22 01:42:51,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:51,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510266545] [2024-11-22 01:42:51,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:51,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:51,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:51,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:51,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510266545] [2024-11-22 01:42:51,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510266545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:51,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:51,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:42:51,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323687448] [2024-11-22 01:42:51,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:51,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:42:51,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:51,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:42:51,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:42:51,855 INFO L87 Difference]: Start difference. First operand 560 states and 887 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), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 01:42:51,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:51,899 INFO L93 Difference]: Finished difference Result 1099 states and 1756 transitions. [2024-11-22 01:42:51,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:42:51,900 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), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-11-22 01:42:51,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:51,903 INFO L225 Difference]: With dead ends: 1099 [2024-11-22 01:42:51,904 INFO L226 Difference]: Without dead ends: 569 [2024-11-22 01:42:51,906 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 [2024-11-22 01:42:51,906 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 45 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:42:51,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2556 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:42:51,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-11-22 01:42:51,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 560. [2024-11-22 01:42:51,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 428 states have (on average 1.591121495327103) internal successors, (681), 445 states have internal predecessors, (681), 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) [2024-11-22 01:42:51,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 886 transitions. [2024-11-22 01:42:51,921 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 886 transitions. Word has length 74 [2024-11-22 01:42:51,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:51,921 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 886 transitions. [2024-11-22 01:42:51,921 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), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-22 01:42:51,922 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 886 transitions. [2024-11-22 01:42:51,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 01:42:51,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:51,922 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] [2024-11-22 01:42:51,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:42:51,923 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:51,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:51,923 INFO L85 PathProgramCache]: Analyzing trace with hash 79908457, now seen corresponding path program 1 times [2024-11-22 01:42:51,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:51,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380864685] [2024-11-22 01:42:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:51,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:51,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:51,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:51,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380864685] [2024-11-22 01:42:51,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380864685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:51,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:51,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:42:51,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542658846] [2024-11-22 01:42:51,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:51,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:42:51,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:51,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:42:51,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:42:51,992 INFO L87 Difference]: Start difference. First operand 560 states and 886 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) [2024-11-22 01:42:52,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:52,033 INFO L93 Difference]: Finished difference Result 1086 states and 1735 transitions. [2024-11-22 01:42:52,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:42:52,034 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 [2024-11-22 01:42:52,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:52,037 INFO L225 Difference]: With dead ends: 1086 [2024-11-22 01:42:52,038 INFO L226 Difference]: Without dead ends: 562 [2024-11-22 01:42:52,041 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 [2024-11-22 01:42:52,041 INFO L432 NwaCegarLoop]: 849 mSDtfsCounter, 15 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2532 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 [2024-11-22 01:42:52,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2532 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:42:52,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-22 01:42:52,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2024-11-22 01:42:52,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 430 states have (on average 1.586046511627907) internal successors, (682), 447 states have internal predecessors, (682), 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) [2024-11-22 01:42:52,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 887 transitions. [2024-11-22 01:42:52,057 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 887 transitions. Word has length 74 [2024-11-22 01:42:52,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:52,058 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 887 transitions. [2024-11-22 01:42:52,058 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) [2024-11-22 01:42:52,058 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 887 transitions. [2024-11-22 01:42:52,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 01:42:52,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:52,060 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] [2024-11-22 01:42:52,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:42:52,060 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:52,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:52,060 INFO L85 PathProgramCache]: Analyzing trace with hash -697854211, now seen corresponding path program 1 times [2024-11-22 01:42:52,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:52,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365733709] [2024-11-22 01:42:52,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:52,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:52,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:42:52,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:52,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365733709] [2024-11-22 01:42:52,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365733709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:52,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:42:52,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:42:52,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006575109] [2024-11-22 01:42:52,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:52,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:42:52,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:52,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:42:52,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:42:52,165 INFO L87 Difference]: Start difference. First operand 562 states and 887 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) [2024-11-22 01:42:52,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:52,288 INFO L93 Difference]: Finished difference Result 1596 states and 2573 transitions. [2024-11-22 01:42:52,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:42:52,288 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 [2024-11-22 01:42:52,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:52,295 INFO L225 Difference]: With dead ends: 1596 [2024-11-22 01:42:52,295 INFO L226 Difference]: Without dead ends: 1077 [2024-11-22 01:42:52,298 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 [2024-11-22 01:42:52,299 INFO L432 NwaCegarLoop]: 954 mSDtfsCounter, 836 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1773 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 [2024-11-22 01:42:52,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 1773 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:42:52,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2024-11-22 01:42:52,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1014. [2024-11-22 01:42:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 782 states have (on average 1.6074168797953965) internal successors, (1257), 808 states have internal predecessors, (1257), 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) [2024-11-22 01:42:52,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1626 transitions. [2024-11-22 01:42:52,340 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1626 transitions. Word has length 75 [2024-11-22 01:42:52,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:52,340 INFO L471 AbstractCegarLoop]: Abstraction has 1014 states and 1626 transitions. [2024-11-22 01:42:52,341 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) [2024-11-22 01:42:52,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1626 transitions. [2024-11-22 01:42:52,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-22 01:42:52,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:52,344 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] [2024-11-22 01:42:52,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:42:52,345 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:52,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:52,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1568481168, now seen corresponding path program 1 times [2024-11-22 01:42:52,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:52,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359507110] [2024-11-22 01:42:52,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:52,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:42:52,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:52,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359507110] [2024-11-22 01:42:52,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359507110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:42:52,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028137414] [2024-11-22 01:42:52,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:52,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:42:52,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:42:52,464 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) [2024-11-22 01:42:52,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:42:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:52,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:42:52,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:42:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:42:52,880 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:42:52,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028137414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:52,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:42:52,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-22 01:42:52,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310694372] [2024-11-22 01:42:52,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:52,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:42:52,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:52,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:42:52,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:42:52,882 INFO L87 Difference]: Start difference. First operand 1014 states and 1626 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) [2024-11-22 01:42:53,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:53,349 INFO L93 Difference]: Finished difference Result 2001 states and 3290 transitions. [2024-11-22 01:42:53,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:42:53,349 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 [2024-11-22 01:42:53,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:53,355 INFO L225 Difference]: With dead ends: 2001 [2024-11-22 01:42:53,356 INFO L226 Difference]: Without dead ends: 1030 [2024-11-22 01:42:53,361 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 [2024-11-22 01:42:53,361 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 823 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:42:53,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2140 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:42:53,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2024-11-22 01:42:53,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2024-11-22 01:42:53,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 796 states have (on average 1.6092964824120604) internal successors, (1281), 822 states have internal predecessors, (1281), 182 states have call successors, (182), 53 states have call predecessors, (182), 51 states have return successors, (189), 169 states have call predecessors, (189), 180 states have call successors, (189) [2024-11-22 01:42:53,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1652 transitions. [2024-11-22 01:42:53,399 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1652 transitions. Word has length 130 [2024-11-22 01:42:53,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:53,399 INFO L471 AbstractCegarLoop]: Abstraction has 1030 states and 1652 transitions. [2024-11-22 01:42:53,400 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) [2024-11-22 01:42:53,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1652 transitions. [2024-11-22 01:42:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-22 01:42:53,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:53,403 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:42:53,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:42:53,603 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,SelfDestructingSolverStorable16 [2024-11-22 01:42:53,604 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:53,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:53,604 INFO L85 PathProgramCache]: Analyzing trace with hash -59148651, now seen corresponding path program 1 times [2024-11-22 01:42:53,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:53,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758985997] [2024-11-22 01:42:53,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:53,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:53,859 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 01:42:53,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:53,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758985997] [2024-11-22 01:42:53,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758985997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:42:53,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370864946] [2024-11-22 01:42:53,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:53,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:42:53,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:42:53,862 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) [2024-11-22 01:42:53,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:42:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:54,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:42:54,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:42:54,237 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-22 01:42:54,238 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:42:54,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370864946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:54,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:42:54,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-22 01:42:54,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026788496] [2024-11-22 01:42:54,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:54,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:42:54,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:54,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:42:54,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-22 01:42:54,240 INFO L87 Difference]: Start difference. First operand 1030 states and 1652 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:42:54,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:54,681 INFO L93 Difference]: Finished difference Result 2620 states and 4213 transitions. [2024-11-22 01:42:54,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:42:54,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 132 [2024-11-22 01:42:54,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:54,696 INFO L225 Difference]: With dead ends: 2620 [2024-11-22 01:42:54,696 INFO L226 Difference]: Without dead ends: 1633 [2024-11-22 01:42:54,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-22 01:42:54,703 INFO L432 NwaCegarLoop]: 1121 mSDtfsCounter, 822 mSDsluCounter, 3601 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 4722 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:42:54,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 4722 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:42:54,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2024-11-22 01:42:54,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1631. [2024-11-22 01:42:54,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1258 states have (on average 1.5818759936406994) internal successors, (1990), 1287 states have internal predecessors, (1990), 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) [2024-11-22 01:42:54,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2594 transitions. [2024-11-22 01:42:54,770 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2594 transitions. Word has length 132 [2024-11-22 01:42:54,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:54,770 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 2594 transitions. [2024-11-22 01:42:54,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:42:54,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2594 transitions. [2024-11-22 01:42:54,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 01:42:54,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:54,774 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] [2024-11-22 01:42:54,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 01:42:54,978 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,SelfDestructingSolverStorable17 [2024-11-22 01:42:54,979 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:54,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:54,979 INFO L85 PathProgramCache]: Analyzing trace with hash 2095173715, now seen corresponding path program 1 times [2024-11-22 01:42:54,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:54,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820394284] [2024-11-22 01:42:54,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:54,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-22 01:42:55,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:55,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820394284] [2024-11-22 01:42:55,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820394284] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:42:55,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048707777] [2024-11-22 01:42:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:55,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:42:55,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:42:55,092 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) [2024-11-22 01:42:55,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:42:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:55,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:42:55,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:42:55,422 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-22 01:42:55,423 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:42:55,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048707777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:55,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:42:55,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-22 01:42:55,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555560665] [2024-11-22 01:42:55,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:55,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:42:55,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:55,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:42:55,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:42:55,426 INFO L87 Difference]: Start difference. First operand 1631 states and 2594 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) [2024-11-22 01:42:55,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:55,922 INFO L93 Difference]: Finished difference Result 3251 states and 5317 transitions. [2024-11-22 01:42:55,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:42:55,923 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 [2024-11-22 01:42:55,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:55,932 INFO L225 Difference]: With dead ends: 3251 [2024-11-22 01:42:55,933 INFO L226 Difference]: Without dead ends: 1663 [2024-11-22 01:42:55,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:42:55,941 INFO L432 NwaCegarLoop]: 845 mSDtfsCounter, 807 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:42:55,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 2137 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:42:55,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-22 01:42:55,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1663. [2024-11-22 01:42:55,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1286 states have (on average 1.5847589424572317) internal successors, (2038), 1315 states have internal predecessors, (2038), 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) [2024-11-22 01:42:55,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2646 transitions. [2024-11-22 01:42:55,993 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2646 transitions. Word has length 133 [2024-11-22 01:42:55,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:55,993 INFO L471 AbstractCegarLoop]: Abstraction has 1663 states and 2646 transitions. [2024-11-22 01:42:55,994 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) [2024-11-22 01:42:55,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2646 transitions. [2024-11-22 01:42:55,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-22 01:42:55,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:55,998 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] [2024-11-22 01:42:56,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 01:42:56,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:42:56,202 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:56,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:56,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1247011412, now seen corresponding path program 1 times [2024-11-22 01:42:56,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:56,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589871716] [2024-11-22 01:42:56,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:56,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-22 01:42:56,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:56,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589871716] [2024-11-22 01:42:56,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589871716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:42:56,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716930752] [2024-11-22 01:42:56,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:56,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:42:56,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:42:56,338 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) [2024-11-22 01:42:56,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:42:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:56,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:42:56,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:42:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 01:42:56,688 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:42:56,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716930752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:56,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:42:56,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-22 01:42:56,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627465245] [2024-11-22 01:42:56,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:56,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:42:56,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:56,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:42:56,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:42:56,690 INFO L87 Difference]: Start difference. First operand 1663 states and 2646 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) [2024-11-22 01:42:57,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:57,183 INFO L93 Difference]: Finished difference Result 3315 states and 5409 transitions. [2024-11-22 01:42:57,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:42:57,183 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 [2024-11-22 01:42:57,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:57,194 INFO L225 Difference]: With dead ends: 3315 [2024-11-22 01:42:57,194 INFO L226 Difference]: Without dead ends: 1695 [2024-11-22 01:42:57,203 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 [2024-11-22 01:42:57,204 INFO L432 NwaCegarLoop]: 842 mSDtfsCounter, 811 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:42:57,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 2134 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:42:57,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2024-11-22 01:42:57,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2024-11-22 01:42:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1314 states have (on average 1.5875190258751903) internal successors, (2086), 1343 states have internal predecessors, (2086), 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) [2024-11-22 01:42:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2698 transitions. [2024-11-22 01:42:57,272 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2698 transitions. Word has length 136 [2024-11-22 01:42:57,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:57,272 INFO L471 AbstractCegarLoop]: Abstraction has 1695 states and 2698 transitions. [2024-11-22 01:42:57,273 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) [2024-11-22 01:42:57,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2698 transitions. [2024-11-22 01:42:57,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-22 01:42:57,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:57,285 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] [2024-11-22 01:42:57,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:42:57,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:42:57,485 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:57,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:57,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1858603815, now seen corresponding path program 1 times [2024-11-22 01:42:57,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:57,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587808481] [2024-11-22 01:42:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:57,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:57,629 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:42:57,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:57,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587808481] [2024-11-22 01:42:57,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587808481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:42:57,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220004654] [2024-11-22 01:42:57,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:57,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:42:57,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:42:57,632 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) [2024-11-22 01:42:57,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:42:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:57,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:42:57,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:42:57,947 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-22 01:42:57,948 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:42:57,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220004654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:57,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:42:57,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-22 01:42:57,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355084204] [2024-11-22 01:42:57,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:57,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:42:57,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:57,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:42:57,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:42:57,949 INFO L87 Difference]: Start difference. First operand 1695 states and 2698 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) [2024-11-22 01:42:58,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:42:58,437 INFO L93 Difference]: Finished difference Result 3379 states and 5501 transitions. [2024-11-22 01:42:58,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:42:58,438 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 [2024-11-22 01:42:58,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:42:58,449 INFO L225 Difference]: With dead ends: 3379 [2024-11-22 01:42:58,449 INFO L226 Difference]: Without dead ends: 1727 [2024-11-22 01:42:58,459 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 [2024-11-22 01:42:58,460 INFO L432 NwaCegarLoop]: 839 mSDtfsCounter, 805 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:42:58,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 2131 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:42:58,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2024-11-22 01:42:58,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1727. [2024-11-22 01:42:58,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1342 states have (on average 1.5901639344262295) internal successors, (2134), 1371 states have internal predecessors, (2134), 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) [2024-11-22 01:42:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2750 transitions. [2024-11-22 01:42:58,519 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2750 transitions. Word has length 139 [2024-11-22 01:42:58,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:42:58,520 INFO L471 AbstractCegarLoop]: Abstraction has 1727 states and 2750 transitions. [2024-11-22 01:42:58,520 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) [2024-11-22 01:42:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2750 transitions. [2024-11-22 01:42:58,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 01:42:58,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:42:58,524 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] [2024-11-22 01:42:58,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 01:42:58,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:42:58,725 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:42:58,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:42:58,726 INFO L85 PathProgramCache]: Analyzing trace with hash 3167688, now seen corresponding path program 1 times [2024-11-22 01:42:58,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:42:58,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744802810] [2024-11-22 01:42:58,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:58,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:42:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:59,023 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 01:42:59,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:42:59,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744802810] [2024-11-22 01:42:59,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744802810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:42:59,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479396917] [2024-11-22 01:42:59,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:42:59,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:42:59,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:42:59,027 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) [2024-11-22 01:42:59,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:42:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:42:59,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 01:42:59,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:42:59,401 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:42:59,402 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:42:59,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479396917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:42:59,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:42:59,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-22 01:42:59,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372405872] [2024-11-22 01:42:59,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:42:59,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:42:59,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:42:59,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:42:59,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-22 01:42:59,408 INFO L87 Difference]: Start difference. First operand 1727 states and 2750 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) [2024-11-22 01:43:00,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:00,991 INFO L93 Difference]: Finished difference Result 3506 states and 5588 transitions. [2024-11-22 01:43:00,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:43:00,994 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 [2024-11-22 01:43:00,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:01,011 INFO L225 Difference]: With dead ends: 3506 [2024-11-22 01:43:01,011 INFO L226 Difference]: Without dead ends: 1825 [2024-11-22 01:43:01,019 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 [2024-11-22 01:43:01,020 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 1455 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 2295 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 2665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:43:01,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1568 Valid, 1115 Invalid, 2665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2295 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 01:43:01,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2024-11-22 01:43:01,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1687. [2024-11-22 01:43:01,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1258 states have (on average 1.5516693163751987) internal successors, (1952), 1307 states have internal predecessors, (1952), 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) [2024-11-22 01:43:01,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2660 transitions. [2024-11-22 01:43:01,090 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2660 transitions. Word has length 142 [2024-11-22 01:43:01,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:01,091 INFO L471 AbstractCegarLoop]: Abstraction has 1687 states and 2660 transitions. [2024-11-22 01:43:01,091 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) [2024-11-22 01:43:01,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2660 transitions. [2024-11-22 01:43:01,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-22 01:43:01,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:01,096 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] [2024-11-22 01:43:01,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 01:43:01,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:01,297 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:01,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:01,298 INFO L85 PathProgramCache]: Analyzing trace with hash -950772470, now seen corresponding path program 1 times [2024-11-22 01:43:01,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:01,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557052978] [2024-11-22 01:43:01,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:01,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:01,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:01,559 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 01:43:01,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:01,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557052978] [2024-11-22 01:43:01,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557052978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:01,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990949603] [2024-11-22 01:43:01,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:01,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:01,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:01,562 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) [2024-11-22 01:43:01,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 01:43:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:01,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-22 01:43:01,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:01,924 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 01:43:01,924 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:01,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990949603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:01,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:01,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-22 01:43:01,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075176541] [2024-11-22 01:43:01,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:01,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:43:01,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:01,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:43:01,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-22 01:43:01,926 INFO L87 Difference]: Start difference. First operand 1687 states and 2660 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) [2024-11-22 01:43:05,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:05,233 INFO L93 Difference]: Finished difference Result 7217 states and 11698 transitions. [2024-11-22 01:43:05,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 01:43:05,235 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 [2024-11-22 01:43:05,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:05,275 INFO L225 Difference]: With dead ends: 7217 [2024-11-22 01:43:05,275 INFO L226 Difference]: Without dead ends: 5575 [2024-11-22 01:43:05,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2024-11-22 01:43:05,287 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 2747 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 5977 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2852 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 6706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 5977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-22 01:43:05,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2852 Valid, 2092 Invalid, 6706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 5977 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-22 01:43:05,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2024-11-22 01:43:05,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 5159. [2024-11-22 01:43:05,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5159 states, 3832 states have (on average 1.5477557411273486) internal successors, (5931), 3986 states have internal predecessors, (5931), 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) [2024-11-22 01:43:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 5159 states and 8307 transitions. [2024-11-22 01:43:05,513 INFO L78 Accepts]: Start accepts. Automaton has 5159 states and 8307 transitions. Word has length 142 [2024-11-22 01:43:05,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:05,514 INFO L471 AbstractCegarLoop]: Abstraction has 5159 states and 8307 transitions. [2024-11-22 01:43:05,514 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) [2024-11-22 01:43:05,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5159 states and 8307 transitions. [2024-11-22 01:43:05,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 01:43:05,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:05,519 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] [2024-11-22 01:43:05,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 01:43:05,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:05,719 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:05,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:05,720 INFO L85 PathProgramCache]: Analyzing trace with hash -2122579123, now seen corresponding path program 1 times [2024-11-22 01:43:05,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:05,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787457595] [2024-11-22 01:43:05,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:05,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:05,978 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 01:43:05,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:05,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787457595] [2024-11-22 01:43:05,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787457595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:05,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442621488] [2024-11-22 01:43:05,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:05,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:05,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:05,981 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) [2024-11-22 01:43:05,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 01:43:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:06,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:43:06,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 01:43:06,227 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:06,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442621488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:06,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:06,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-22 01:43:06,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573246737] [2024-11-22 01:43:06,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:06,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:43:06,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:06,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:43:06,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:43:06,230 INFO L87 Difference]: Start difference. First operand 5159 states and 8307 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) [2024-11-22 01:43:06,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:06,516 INFO L93 Difference]: Finished difference Result 12072 states and 19649 transitions. [2024-11-22 01:43:06,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:43:06,517 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 [2024-11-22 01:43:06,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:06,560 INFO L225 Difference]: With dead ends: 12072 [2024-11-22 01:43:06,561 INFO L226 Difference]: Without dead ends: 6962 [2024-11-22 01:43:06,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:43:06,583 INFO L432 NwaCegarLoop]: 1664 mSDtfsCounter, 830 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2524 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 [2024-11-22 01:43:06,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 2524 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:43:06,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6962 states. [2024-11-22 01:43:06,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6962 to 5153. [2024-11-22 01:43:06,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 3828 states have (on average 1.5472831765935213) internal successors, (5923), 3980 states have internal predecessors, (5923), 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) [2024-11-22 01:43:06,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 8275 transitions. [2024-11-22 01:43:06,868 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 8275 transitions. Word has length 147 [2024-11-22 01:43:06,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:06,869 INFO L471 AbstractCegarLoop]: Abstraction has 5153 states and 8275 transitions. [2024-11-22 01:43:06,869 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) [2024-11-22 01:43:06,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 8275 transitions. [2024-11-22 01:43:06,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 01:43:06,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:06,873 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] [2024-11-22 01:43:06,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 01:43:07,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-22 01:43:07,074 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:07,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:07,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1463047601, now seen corresponding path program 1 times [2024-11-22 01:43:07,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:07,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512906335] [2024-11-22 01:43:07,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:07,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-22 01:43:07,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:07,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512906335] [2024-11-22 01:43:07,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512906335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:07,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395780039] [2024-11-22 01:43:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:07,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:07,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:07,287 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) [2024-11-22 01:43:07,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 01:43:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:07,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 01:43:07,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 01:43:07,591 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:07,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395780039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:07,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:07,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-22 01:43:07,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646381851] [2024-11-22 01:43:07,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:07,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:43:07,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:07,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:43:07,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-22 01:43:07,592 INFO L87 Difference]: Start difference. First operand 5153 states and 8275 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) [2024-11-22 01:43:07,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:08,000 INFO L93 Difference]: Finished difference Result 5155 states and 8276 transitions. [2024-11-22 01:43:08,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:43:08,000 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 [2024-11-22 01:43:08,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:08,033 INFO L225 Difference]: With dead ends: 5155 [2024-11-22 01:43:08,034 INFO L226 Difference]: Without dead ends: 5153 [2024-11-22 01:43:08,039 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 [2024-11-22 01:43:08,040 INFO L432 NwaCegarLoop]: 966 mSDtfsCounter, 392 mSDsluCounter, 3405 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 4371 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 [2024-11-22 01:43:08,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 4371 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:43:08,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5153 states. [2024-11-22 01:43:08,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5153 to 5153. [2024-11-22 01:43:08,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 3828 states have (on average 1.5407523510971788) internal successors, (5898), 3980 states have internal predecessors, (5898), 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) [2024-11-22 01:43:08,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 8250 transitions. [2024-11-22 01:43:08,266 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 8250 transitions. Word has length 147 [2024-11-22 01:43:08,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:08,268 INFO L471 AbstractCegarLoop]: Abstraction has 5153 states and 8250 transitions. [2024-11-22 01:43:08,268 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) [2024-11-22 01:43:08,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 8250 transitions. [2024-11-22 01:43:08,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-22 01:43:08,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:08,273 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] [2024-11-22 01:43:08,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 01:43:08,473 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,SelfDestructingSolverStorable24 [2024-11-22 01:43:08,473 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:08,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:08,474 INFO L85 PathProgramCache]: Analyzing trace with hash 552197517, now seen corresponding path program 1 times [2024-11-22 01:43:08,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:08,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512061841] [2024-11-22 01:43:08,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:08,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:08,726 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-22 01:43:08,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:08,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512061841] [2024-11-22 01:43:08,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512061841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:08,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079204022] [2024-11-22 01:43:08,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:08,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:08,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:08,727 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) [2024-11-22 01:43:08,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 01:43:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:08,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:43:08,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:08,969 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-22 01:43:08,969 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:08,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079204022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:08,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:08,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:43:08,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340092875] [2024-11-22 01:43:08,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:08,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:43:08,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:08,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:43:08,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:43:08,970 INFO L87 Difference]: Start difference. First operand 5153 states and 8250 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) [2024-11-22 01:43:09,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:09,261 INFO L93 Difference]: Finished difference Result 10531 states and 17111 transitions. [2024-11-22 01:43:09,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:43:09,261 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 [2024-11-22 01:43:09,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:09,294 INFO L225 Difference]: With dead ends: 10531 [2024-11-22 01:43:09,294 INFO L226 Difference]: Without dead ends: 5423 [2024-11-22 01:43:09,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:43:09,317 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 144 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2395 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 [2024-11-22 01:43:09,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2395 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:43:09,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5423 states. [2024-11-22 01:43:09,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5423 to 5387. [2024-11-22 01:43:09,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5387 states, 4056 states have (on average 1.5621301775147929) internal successors, (6336), 4208 states have internal predecessors, (6336), 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) [2024-11-22 01:43:09,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5387 states to 5387 states and 8688 transitions. [2024-11-22 01:43:09,580 INFO L78 Accepts]: Start accepts. Automaton has 5387 states and 8688 transitions. Word has length 170 [2024-11-22 01:43:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:09,581 INFO L471 AbstractCegarLoop]: Abstraction has 5387 states and 8688 transitions. [2024-11-22 01:43:09,581 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) [2024-11-22 01:43:09,581 INFO L276 IsEmpty]: Start isEmpty. Operand 5387 states and 8688 transitions. [2024-11-22 01:43:09,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-22 01:43:09,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:09,586 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] [2024-11-22 01:43:09,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 01:43:09,786 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,SelfDestructingSolverStorable25 [2024-11-22 01:43:09,787 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:09,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:09,787 INFO L85 PathProgramCache]: Analyzing trace with hash 777932118, now seen corresponding path program 1 times [2024-11-22 01:43:09,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:09,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681831725] [2024-11-22 01:43:09,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:09,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:09,988 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-22 01:43:09,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:09,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681831725] [2024-11-22 01:43:09,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681831725] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:09,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743974542] [2024-11-22 01:43:09,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:09,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:09,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:09,992 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) [2024-11-22 01:43:09,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 01:43:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:10,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 1575 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:43:10,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:10,274 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-22 01:43:10,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:10,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743974542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:10,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:10,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:43:10,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607231648] [2024-11-22 01:43:10,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:10,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:43:10,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:10,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:43:10,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:43:10,276 INFO L87 Difference]: Start difference. First operand 5387 states and 8688 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) [2024-11-22 01:43:10,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:10,636 INFO L93 Difference]: Finished difference Result 11017 states and 17987 transitions. [2024-11-22 01:43:10,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:43:10,637 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 [2024-11-22 01:43:10,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:10,668 INFO L225 Difference]: With dead ends: 11017 [2024-11-22 01:43:10,669 INFO L226 Difference]: Without dead ends: 5675 [2024-11-22 01:43:10,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:43:10,690 INFO L432 NwaCegarLoop]: 805 mSDtfsCounter, 142 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2392 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 [2024-11-22 01:43:10,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2392 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:43:10,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5675 states. [2024-11-22 01:43:10,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5675 to 5621. [2024-11-22 01:43:10,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5621 states, 4284 states have (on average 1.5812324929971988) internal successors, (6774), 4436 states have internal predecessors, (6774), 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) [2024-11-22 01:43:10,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5621 states to 5621 states and 9126 transitions. [2024-11-22 01:43:10,998 INFO L78 Accepts]: Start accepts. Automaton has 5621 states and 9126 transitions. Word has length 175 [2024-11-22 01:43:10,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:10,999 INFO L471 AbstractCegarLoop]: Abstraction has 5621 states and 9126 transitions. [2024-11-22 01:43:10,999 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) [2024-11-22 01:43:10,999 INFO L276 IsEmpty]: Start isEmpty. Operand 5621 states and 9126 transitions. [2024-11-22 01:43:11,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-22 01:43:11,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:11,005 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] [2024-11-22 01:43:11,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 01:43:11,205 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,SelfDestructingSolverStorable26 [2024-11-22 01:43:11,206 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:11,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:11,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1607633978, now seen corresponding path program 1 times [2024-11-22 01:43:11,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:11,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731231407] [2024-11-22 01:43:11,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:11,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:11,535 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-22 01:43:11,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:11,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731231407] [2024-11-22 01:43:11,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731231407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:11,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597304619] [2024-11-22 01:43:11,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:11,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:11,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:11,538 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) [2024-11-22 01:43:11,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 01:43:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:11,777 INFO L255 TraceCheckSpWp]: Trace formula consists of 1579 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:43:11,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 01:43:11,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:11,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597304619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:11,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:11,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:43:11,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946319552] [2024-11-22 01:43:11,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:11,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:43:11,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:11,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:43:11,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:43:11,815 INFO L87 Difference]: Start difference. First operand 5621 states and 9126 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) [2024-11-22 01:43:12,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:12,116 INFO L93 Difference]: Finished difference Result 11503 states and 18863 transitions. [2024-11-22 01:43:12,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:43:12,116 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 [2024-11-22 01:43:12,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:12,197 INFO L225 Difference]: With dead ends: 11503 [2024-11-22 01:43:12,197 INFO L226 Difference]: Without dead ends: 5927 [2024-11-22 01:43:12,211 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 [2024-11-22 01:43:12,212 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 140 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2389 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 [2024-11-22 01:43:12,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2389 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:43:12,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5927 states. [2024-11-22 01:43:12,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5927 to 5855. [2024-11-22 01:43:12,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5855 states, 4512 states have (on average 1.5984042553191489) internal successors, (7212), 4664 states have internal predecessors, (7212), 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) [2024-11-22 01:43:12,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5855 states to 5855 states and 9564 transitions. [2024-11-22 01:43:12,421 INFO L78 Accepts]: Start accepts. Automaton has 5855 states and 9564 transitions. Word has length 179 [2024-11-22 01:43:12,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:12,422 INFO L471 AbstractCegarLoop]: Abstraction has 5855 states and 9564 transitions. [2024-11-22 01:43:12,422 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) [2024-11-22 01:43:12,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5855 states and 9564 transitions. [2024-11-22 01:43:12,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-22 01:43:12,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:12,427 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] [2024-11-22 01:43:12,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-22 01:43:12,627 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,SelfDestructingSolverStorable27 [2024-11-22 01:43:12,628 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:12,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:12,628 INFO L85 PathProgramCache]: Analyzing trace with hash 518158381, now seen corresponding path program 1 times [2024-11-22 01:43:12,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:12,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542967219] [2024-11-22 01:43:12,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:12,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:12,840 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-22 01:43:12,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:12,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542967219] [2024-11-22 01:43:12,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542967219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:12,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376404863] [2024-11-22 01:43:12,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:12,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:12,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:12,842 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) [2024-11-22 01:43:12,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 01:43:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:13,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:43:13,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-22 01:43:13,084 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:13,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376404863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:13,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:13,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:43:13,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162832938] [2024-11-22 01:43:13,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:13,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:43:13,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:13,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:43:13,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:43:13,086 INFO L87 Difference]: Start difference. First operand 5855 states and 9564 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) [2024-11-22 01:43:13,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:13,404 INFO L93 Difference]: Finished difference Result 11989 states and 19739 transitions. [2024-11-22 01:43:13,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:43:13,405 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 [2024-11-22 01:43:13,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:13,442 INFO L225 Difference]: With dead ends: 11989 [2024-11-22 01:43:13,442 INFO L226 Difference]: Without dead ends: 6179 [2024-11-22 01:43:13,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:43:13,464 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 138 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2379 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 [2024-11-22 01:43:13,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2379 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:43:13,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6179 states. [2024-11-22 01:43:13,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6179 to 6089. [2024-11-22 01:43:13,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 4740 states have (on average 1.6139240506329113) internal successors, (7650), 4892 states have internal predecessors, (7650), 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) [2024-11-22 01:43:13,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 10002 transitions. [2024-11-22 01:43:13,688 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 10002 transitions. Word has length 182 [2024-11-22 01:43:13,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:13,690 INFO L471 AbstractCegarLoop]: Abstraction has 6089 states and 10002 transitions. [2024-11-22 01:43:13,691 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) [2024-11-22 01:43:13,691 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 10002 transitions. [2024-11-22 01:43:13,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-22 01:43:13,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:13,696 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] [2024-11-22 01:43:13,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-22 01:43:13,896 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,SelfDestructingSolverStorable28 [2024-11-22 01:43:13,897 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:13,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:13,898 INFO L85 PathProgramCache]: Analyzing trace with hash 704992827, now seen corresponding path program 1 times [2024-11-22 01:43:13,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:13,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222498794] [2024-11-22 01:43:13,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:13,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-22 01:43:14,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:14,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222498794] [2024-11-22 01:43:14,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222498794] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:14,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353905865] [2024-11-22 01:43:14,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:14,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:14,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:14,109 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) [2024-11-22 01:43:14,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-22 01:43:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:14,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-22 01:43:14,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-22 01:43:14,518 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:14,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353905865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:14,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:14,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2024-11-22 01:43:14,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662237554] [2024-11-22 01:43:14,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:14,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 01:43:14,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:14,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 01:43:14,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-22 01:43:14,519 INFO L87 Difference]: Start difference. First operand 6089 states and 10002 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) [2024-11-22 01:43:16,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:16,882 INFO L93 Difference]: Finished difference Result 19037 states and 31838 transitions. [2024-11-22 01:43:16,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 01:43:16,883 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 [2024-11-22 01:43:16,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:16,952 INFO L225 Difference]: With dead ends: 19037 [2024-11-22 01:43:16,952 INFO L226 Difference]: Without dead ends: 10031 [2024-11-22 01:43:16,997 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 [2024-11-22 01:43:16,997 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 1929 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 4085 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2037 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 4569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 4085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 01:43:16,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2037 Valid, 2479 Invalid, 4569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 4085 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 01:43:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10031 states. [2024-11-22 01:43:17,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10031 to 9950. [2024-11-22 01:43:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9950 states, 7639 states have (on average 1.6095038617620108) internal successors, (12295), 7946 states have internal predecessors, (12295), 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) [2024-11-22 01:43:17,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9950 states to 9950 states and 16366 transitions. [2024-11-22 01:43:17,546 INFO L78 Accepts]: Start accepts. Automaton has 9950 states and 16366 transitions. Word has length 184 [2024-11-22 01:43:17,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:17,547 INFO L471 AbstractCegarLoop]: Abstraction has 9950 states and 16366 transitions. [2024-11-22 01:43:17,547 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) [2024-11-22 01:43:17,547 INFO L276 IsEmpty]: Start isEmpty. Operand 9950 states and 16366 transitions. [2024-11-22 01:43:17,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-22 01:43:17,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:17,610 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] [2024-11-22 01:43:17,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-22 01:43:17,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:17,811 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:17,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:17,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1164466693, now seen corresponding path program 1 times [2024-11-22 01:43:17,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:17,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791459984] [2024-11-22 01:43:17,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:17,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:17,930 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-22 01:43:17,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:17,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791459984] [2024-11-22 01:43:17,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791459984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:17,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:43:17,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:43:17,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569537772] [2024-11-22 01:43:17,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:17,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:43:17,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:17,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:43:17,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:43:17,933 INFO L87 Difference]: Start difference. First operand 9950 states and 16366 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) [2024-11-22 01:43:18,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:18,308 INFO L93 Difference]: Finished difference Result 19597 states and 32244 transitions. [2024-11-22 01:43:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:43:18,308 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 [2024-11-22 01:43:18,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:18,360 INFO L225 Difference]: With dead ends: 19597 [2024-11-22 01:43:18,360 INFO L226 Difference]: Without dead ends: 9332 [2024-11-22 01:43:18,396 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 [2024-11-22 01:43:18,397 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 32 mSDsluCounter, 5033 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 5877 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 [2024-11-22 01:43:18,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 5877 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:43:18,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9332 states. [2024-11-22 01:43:18,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9332 to 9308. [2024-11-22 01:43:18,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9308 states, 7232 states have (on average 1.6233407079646018) internal successors, (11740), 7514 states have internal predecessors, (11740), 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) [2024-11-22 01:43:18,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9308 states to 9308 states and 15274 transitions. [2024-11-22 01:43:18,832 INFO L78 Accepts]: Start accepts. Automaton has 9308 states and 15274 transitions. Word has length 187 [2024-11-22 01:43:18,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:18,833 INFO L471 AbstractCegarLoop]: Abstraction has 9308 states and 15274 transitions. [2024-11-22 01:43:18,833 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) [2024-11-22 01:43:18,833 INFO L276 IsEmpty]: Start isEmpty. Operand 9308 states and 15274 transitions. [2024-11-22 01:43:18,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 01:43:18,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:18,845 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] [2024-11-22 01:43:18,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 01:43:18,846 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:18,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:18,846 INFO L85 PathProgramCache]: Analyzing trace with hash 888760362, now seen corresponding path program 1 times [2024-11-22 01:43:18,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:18,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744185536] [2024-11-22 01:43:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:18,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-22 01:43:19,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:19,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744185536] [2024-11-22 01:43:19,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744185536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:19,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684791987] [2024-11-22 01:43:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:19,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:19,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:19,321 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) [2024-11-22 01:43:19,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-22 01:43:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:19,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 3983 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:43:19,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:19,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-22 01:43:19,825 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:19,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684791987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:19,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:19,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:43:19,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473729418] [2024-11-22 01:43:19,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:19,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:43:19,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:19,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:43:19,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:43:19,828 INFO L87 Difference]: Start difference. First operand 9308 states and 15274 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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) [2024-11-22 01:43:20,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:20,212 INFO L93 Difference]: Finished difference Result 18664 states and 30931 transitions. [2024-11-22 01:43:20,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:43:20,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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 526 [2024-11-22 01:43:20,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:20,263 INFO L225 Difference]: With dead ends: 18664 [2024-11-22 01:43:20,263 INFO L226 Difference]: Without dead ends: 9398 [2024-11-22 01:43:20,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:43:20,292 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 22 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2520 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 [2024-11-22 01:43:20,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2520 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:43:20,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9398 states. [2024-11-22 01:43:20,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9398 to 9398. [2024-11-22 01:43:20,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9398 states, 7312 states have (on average 1.62472647702407) internal successors, (11880), 7594 states have internal predecessors, (11880), 1539 states have call successors, (1539), 441 states have call predecessors, (1539), 546 states have return successors, (1995), 1490 states have call predecessors, (1995), 1531 states have call successors, (1995) [2024-11-22 01:43:20,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9398 states to 9398 states and 15414 transitions. [2024-11-22 01:43:20,646 INFO L78 Accepts]: Start accepts. Automaton has 9398 states and 15414 transitions. Word has length 526 [2024-11-22 01:43:20,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:20,647 INFO L471 AbstractCegarLoop]: Abstraction has 9398 states and 15414 transitions. [2024-11-22 01:43:20,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 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) [2024-11-22 01:43:20,647 INFO L276 IsEmpty]: Start isEmpty. Operand 9398 states and 15414 transitions. [2024-11-22 01:43:20,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2024-11-22 01:43:20,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:20,661 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] [2024-11-22 01:43:20,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-22 01:43:20,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:20,862 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:20,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:20,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1019187652, now seen corresponding path program 1 times [2024-11-22 01:43:20,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:20,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686698257] [2024-11-22 01:43:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:20,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:21,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-22 01:43:21,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:21,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686698257] [2024-11-22 01:43:21,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686698257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:21,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034105202] [2024-11-22 01:43:21,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:21,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:21,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:21,489 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) [2024-11-22 01:43:21,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-22 01:43:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:22,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 3984 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:43:22,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 656 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2024-11-22 01:43:22,061 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:22,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034105202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:22,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:22,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:43:22,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241565181] [2024-11-22 01:43:22,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:22,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:43:22,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:22,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:43:22,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:43:22,064 INFO L87 Difference]: Start difference. First operand 9398 states and 15414 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-11-22 01:43:22,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:22,647 INFO L93 Difference]: Finished difference Result 18844 states and 31171 transitions. [2024-11-22 01:43:22,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:43:22,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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 527 [2024-11-22 01:43:22,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:22,714 INFO L225 Difference]: With dead ends: 18844 [2024-11-22 01:43:22,714 INFO L226 Difference]: Without dead ends: 9488 [2024-11-22 01:43:22,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:43:22,748 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 20 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:43:22,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2514 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:43:22,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9488 states. [2024-11-22 01:43:23,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9488 to 9488. [2024-11-22 01:43:23,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9488 states, 7392 states have (on average 1.626082251082251) internal successors, (12020), 7674 states have internal predecessors, (12020), 1539 states have call successors, (1539), 451 states have call predecessors, (1539), 556 states have return successors, (1995), 1490 states have call predecessors, (1995), 1531 states have call successors, (1995) [2024-11-22 01:43:23,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9488 states to 9488 states and 15554 transitions. [2024-11-22 01:43:23,169 INFO L78 Accepts]: Start accepts. Automaton has 9488 states and 15554 transitions. Word has length 527 [2024-11-22 01:43:23,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:23,170 INFO L471 AbstractCegarLoop]: Abstraction has 9488 states and 15554 transitions. [2024-11-22 01:43:23,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-11-22 01:43:23,170 INFO L276 IsEmpty]: Start isEmpty. Operand 9488 states and 15554 transitions. [2024-11-22 01:43:23,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-22 01:43:23,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:23,179 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] [2024-11-22 01:43:23,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-22 01:43:23,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-22 01:43:23,380 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:23,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1887981980, now seen corresponding path program 1 times [2024-11-22 01:43:23,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:23,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150737610] [2024-11-22 01:43:23,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:23,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:23,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-22 01:43:23,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:23,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150737610] [2024-11-22 01:43:23,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150737610] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:23,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886369374] [2024-11-22 01:43:23,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:23,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:23,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:23,824 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) [2024-11-22 01:43:23,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-22 01:43:24,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:24,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 3985 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-22 01:43:24,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 675 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2024-11-22 01:43:24,729 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:24,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886369374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:24,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:24,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2024-11-22 01:43:24,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880951296] [2024-11-22 01:43:24,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:24,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 01:43:24,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:24,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 01:43:24,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-11-22 01:43:24,731 INFO L87 Difference]: Start difference. First operand 9488 states and 15554 transitions. Second operand has 9 states, 9 states have (on average 24.555555555555557) internal successors, (221), 8 states have internal predecessors, (221), 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) [2024-11-22 01:43:28,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:28,718 INFO L93 Difference]: Finished difference Result 32708 states and 55093 transitions. [2024-11-22 01:43:28,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 01:43:28,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 24.555555555555557) internal successors, (221), 8 states have internal predecessors, (221), 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 528 [2024-11-22 01:43:28,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:28,890 INFO L225 Difference]: With dead ends: 32708 [2024-11-22 01:43:28,890 INFO L226 Difference]: Without dead ends: 23245 [2024-11-22 01:43:28,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2024-11-22 01:43:28,943 INFO L432 NwaCegarLoop]: 517 mSDtfsCounter, 2300 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 7630 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 8223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 7630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:43:28,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2477 Valid, 2512 Invalid, 8223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 7630 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-22 01:43:28,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23245 states. [2024-11-22 01:43:29,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23245 to 22546. [2024-11-22 01:43:29,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22546 states, 17740 states have (on average 1.623957158962796) internal successors, (28809), 18343 states have internal predecessors, (28809), 3481 states have call successors, (3481), 1133 states have call predecessors, (3481), 1324 states have return successors, (4983), 3385 states have call predecessors, (4983), 3462 states have call successors, (4983) [2024-11-22 01:43:29,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22546 states to 22546 states and 37273 transitions. [2024-11-22 01:43:29,995 INFO L78 Accepts]: Start accepts. Automaton has 22546 states and 37273 transitions. Word has length 528 [2024-11-22 01:43:29,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:29,996 INFO L471 AbstractCegarLoop]: Abstraction has 22546 states and 37273 transitions. [2024-11-22 01:43:29,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.555555555555557) internal successors, (221), 8 states have internal predecessors, (221), 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) [2024-11-22 01:43:29,997 INFO L276 IsEmpty]: Start isEmpty. Operand 22546 states and 37273 transitions. [2024-11-22 01:43:30,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-22 01:43:30,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:30,011 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] [2024-11-22 01:43:30,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-22 01:43:30,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:30,212 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:30,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:30,213 INFO L85 PathProgramCache]: Analyzing trace with hash 2018036528, now seen corresponding path program 1 times [2024-11-22 01:43:30,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:30,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982662217] [2024-11-22 01:43:30,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:30,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:30,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-22 01:43:30,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:30,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982662217] [2024-11-22 01:43:30,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982662217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:30,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354172453] [2024-11-22 01:43:30,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:30,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:30,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:30,668 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) [2024-11-22 01:43:30,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-22 01:43:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:31,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 3985 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:43:31,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 656 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2024-11-22 01:43:31,169 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:31,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354172453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:31,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:31,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:43:31,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256677364] [2024-11-22 01:43:31,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:31,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:43:31,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:31,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:43:31,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:43:31,172 INFO L87 Difference]: Start difference. First operand 22546 states and 37273 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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) [2024-11-22 01:43:32,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:32,584 INFO L93 Difference]: Finished difference Result 44914 states and 74711 transitions. [2024-11-22 01:43:32,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:43:32,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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 528 [2024-11-22 01:43:32,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:32,750 INFO L225 Difference]: With dead ends: 44914 [2024-11-22 01:43:32,750 INFO L226 Difference]: Without dead ends: 22829 [2024-11-22 01:43:32,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:43:32,880 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 18 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2508 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 [2024-11-22 01:43:32,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2508 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:43:32,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22829 states. [2024-11-22 01:43:33,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22829 to 22789. [2024-11-22 01:43:33,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22789 states, 17956 states have (on average 1.6254733793717977) internal successors, (29187), 18559 states have internal predecessors, (29187), 3481 states have call successors, (3481), 1160 states have call predecessors, (3481), 1351 states have return successors, (4779), 3385 states have call predecessors, (4779), 3462 states have call successors, (4779) [2024-11-22 01:43:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22789 states to 22789 states and 37447 transitions. [2024-11-22 01:43:33,964 INFO L78 Accepts]: Start accepts. Automaton has 22789 states and 37447 transitions. Word has length 528 [2024-11-22 01:43:33,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:33,964 INFO L471 AbstractCegarLoop]: Abstraction has 22789 states and 37447 transitions. [2024-11-22 01:43:33,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 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) [2024-11-22 01:43:33,964 INFO L276 IsEmpty]: Start isEmpty. Operand 22789 states and 37447 transitions. [2024-11-22 01:43:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2024-11-22 01:43:33,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:33,976 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] [2024-11-22 01:43:33,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-22 01:43:34,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:34,177 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:34,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:34,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1197612092, now seen corresponding path program 1 times [2024-11-22 01:43:34,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:34,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922713068] [2024-11-22 01:43:34,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:34,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-22 01:43:34,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:34,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922713068] [2024-11-22 01:43:34,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922713068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:34,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157138430] [2024-11-22 01:43:34,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:34,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:34,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:34,643 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) [2024-11-22 01:43:34,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-22 01:43:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:35,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 3984 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 01:43:35,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:35,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 660 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2024-11-22 01:43:35,136 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:35,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157138430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:35,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:35,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:43:35,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496285782] [2024-11-22 01:43:35,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:35,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:43:35,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:35,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:43:35,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:43:35,137 INFO L87 Difference]: Start difference. First operand 22789 states and 37447 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-22 01:43:36,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:36,064 INFO L93 Difference]: Finished difference Result 35643 states and 58870 transitions. [2024-11-22 01:43:36,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:43:36,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (39), 2 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 527 [2024-11-22 01:43:36,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:36,204 INFO L225 Difference]: With dead ends: 35643 [2024-11-22 01:43:36,204 INFO L226 Difference]: Without dead ends: 22957 [2024-11-22 01:43:36,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:43:36,270 INFO L432 NwaCegarLoop]: 849 mSDtfsCounter, 22 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:43:36,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2533 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:43:36,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22957 states. [2024-11-22 01:43:37,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22957 to 22957. [2024-11-22 01:43:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22957 states, 18096 states have (on average 1.6252210433244916) internal successors, (29410), 18699 states have internal predecessors, (29410), 3495 states have call successors, (3495), 1174 states have call predecessors, (3495), 1365 states have return successors, (4793), 3399 states have call predecessors, (4793), 3476 states have call successors, (4793) [2024-11-22 01:43:37,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22957 states to 22957 states and 37698 transitions. [2024-11-22 01:43:37,368 INFO L78 Accepts]: Start accepts. Automaton has 22957 states and 37698 transitions. Word has length 527 [2024-11-22 01:43:37,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:37,369 INFO L471 AbstractCegarLoop]: Abstraction has 22957 states and 37698 transitions. [2024-11-22 01:43:37,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-22 01:43:37,369 INFO L276 IsEmpty]: Start isEmpty. Operand 22957 states and 37698 transitions. [2024-11-22 01:43:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-22 01:43:37,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:37,382 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] [2024-11-22 01:43:37,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-22 01:43:37,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:37,582 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:37,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:37,583 INFO L85 PathProgramCache]: Analyzing trace with hash 48639366, now seen corresponding path program 1 times [2024-11-22 01:43:37,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:37,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372339231] [2024-11-22 01:43:37,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:37,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:38,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-22 01:43:38,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:38,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372339231] [2024-11-22 01:43:38,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372339231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:38,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514343879] [2024-11-22 01:43:38,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:38,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:38,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:38,033 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) [2024-11-22 01:43:38,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-22 01:43:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:38,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 3983 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 01:43:38,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:38,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2024-11-22 01:43:38,622 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:38,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514343879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:38,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:38,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-22 01:43:38,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323011788] [2024-11-22 01:43:38,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:38,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:43:38,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:38,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:43:38,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-22 01:43:38,624 INFO L87 Difference]: Start difference. First operand 22957 states and 37698 transitions. Second operand has 7 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 01:43:39,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:39,607 INFO L93 Difference]: Finished difference Result 38051 states and 62521 transitions. [2024-11-22 01:43:39,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:43:39,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 526 [2024-11-22 01:43:39,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:39,744 INFO L225 Difference]: With dead ends: 38051 [2024-11-22 01:43:39,745 INFO L226 Difference]: Without dead ends: 22938 [2024-11-22 01:43:39,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-22 01:43:39,813 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 22 mSDsluCounter, 4263 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:43:39,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5122 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:43:39,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22938 states. [2024-11-22 01:43:41,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22938 to 22938. [2024-11-22 01:43:41,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22938 states, 18077 states have (on average 1.6248271283951983) internal successors, (29372), 18680 states have internal predecessors, (29372), 3495 states have call successors, (3495), 1174 states have call predecessors, (3495), 1365 states have return successors, (4793), 3399 states have call predecessors, (4793), 3476 states have call successors, (4793) [2024-11-22 01:43:41,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22938 states to 22938 states and 37660 transitions. [2024-11-22 01:43:41,251 INFO L78 Accepts]: Start accepts. Automaton has 22938 states and 37660 transitions. Word has length 526 [2024-11-22 01:43:41,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:41,252 INFO L471 AbstractCegarLoop]: Abstraction has 22938 states and 37660 transitions. [2024-11-22 01:43:41,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 01:43:41,252 INFO L276 IsEmpty]: Start isEmpty. Operand 22938 states and 37660 transitions. [2024-11-22 01:43:41,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2024-11-22 01:43:41,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:41,270 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:43:41,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-22 01:43:41,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-22 01:43:41,475 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:41,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:41,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1517812442, now seen corresponding path program 1 times [2024-11-22 01:43:41,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:41,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176282342] [2024-11-22 01:43:41,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:41,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 27 proven. 146 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-22 01:43:41,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:41,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176282342] [2024-11-22 01:43:41,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176282342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:41,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723746607] [2024-11-22 01:43:41,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:41,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:41,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:41,950 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:43:41,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-22 01:43:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:42,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 3984 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 01:43:42,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:42,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1340 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2024-11-22 01:43:42,507 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:42,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723746607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:42,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:42,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-22 01:43:42,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806510638] [2024-11-22 01:43:42,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:42,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:43:42,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:42,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:43:42,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-22 01:43:42,510 INFO L87 Difference]: Start difference. First operand 22938 states and 37660 transitions. Second operand has 7 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 01:43:43,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:43,373 INFO L93 Difference]: Finished difference Result 38032 states and 62483 transitions. [2024-11-22 01:43:43,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:43:43,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 527 [2024-11-22 01:43:43,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:43,519 INFO L225 Difference]: With dead ends: 38032 [2024-11-22 01:43:43,519 INFO L226 Difference]: Without dead ends: 22919 [2024-11-22 01:43:43,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-22 01:43:43,588 INFO L432 NwaCegarLoop]: 850 mSDtfsCounter, 26 mSDsluCounter, 4219 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5069 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:43:43,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5069 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:43:43,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22919 states. [2024-11-22 01:43:44,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22919 to 22919. [2024-11-22 01:43:44,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22919 states, 18058 states have (on average 1.624377007420534) internal successors, (29333), 18661 states have internal predecessors, (29333), 3495 states have call successors, (3495), 1174 states have call predecessors, (3495), 1365 states have return successors, (4793), 3399 states have call predecessors, (4793), 3476 states have call successors, (4793) [2024-11-22 01:43:44,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22919 states to 22919 states and 37621 transitions. [2024-11-22 01:43:44,451 INFO L78 Accepts]: Start accepts. Automaton has 22919 states and 37621 transitions. Word has length 527 [2024-11-22 01:43:44,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:44,452 INFO L471 AbstractCegarLoop]: Abstraction has 22919 states and 37621 transitions. [2024-11-22 01:43:44,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 01:43:44,452 INFO L276 IsEmpty]: Start isEmpty. Operand 22919 states and 37621 transitions. [2024-11-22 01:43:44,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-22 01:43:44,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:44,464 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, 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] [2024-11-22 01:43:44,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-22 01:43:44,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-22 01:43:44,665 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:44,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:44,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1593989534, now seen corresponding path program 1 times [2024-11-22 01:43:44,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:44,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806452000] [2024-11-22 01:43:44,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:44,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:45,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-22 01:43:45,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:45,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806452000] [2024-11-22 01:43:45,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806452000] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:45,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130580256] [2024-11-22 01:43:45,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:45,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:45,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:45,103 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:43:45,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-22 01:43:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:45,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 3985 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 01:43:45,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2024-11-22 01:43:45,677 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:45,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130580256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:45,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:45,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-22 01:43:45,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978311768] [2024-11-22 01:43:45,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:45,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:43:45,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:45,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:43:45,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-22 01:43:45,679 INFO L87 Difference]: Start difference. First operand 22919 states and 37621 transitions. Second operand has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 01:43:46,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:46,571 INFO L93 Difference]: Finished difference Result 38013 states and 62444 transitions. [2024-11-22 01:43:46,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:43:46,571 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 528 [2024-11-22 01:43:46,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:46,714 INFO L225 Difference]: With dead ends: 38013 [2024-11-22 01:43:46,714 INFO L226 Difference]: Without dead ends: 22900 [2024-11-22 01:43:46,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-22 01:43:46,781 INFO L432 NwaCegarLoop]: 849 mSDtfsCounter, 24 mSDsluCounter, 4215 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5064 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:43:46,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5064 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:43:46,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22900 states. [2024-11-22 01:43:47,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22900 to 22900. [2024-11-22 01:43:47,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22900 states, 18039 states have (on average 1.6239813736903377) internal successors, (29295), 18642 states have internal predecessors, (29295), 3495 states have call successors, (3495), 1174 states have call predecessors, (3495), 1365 states have return successors, (4793), 3399 states have call predecessors, (4793), 3476 states have call successors, (4793) [2024-11-22 01:43:47,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22900 states to 22900 states and 37583 transitions. [2024-11-22 01:43:47,677 INFO L78 Accepts]: Start accepts. Automaton has 22900 states and 37583 transitions. Word has length 528 [2024-11-22 01:43:47,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:47,678 INFO L471 AbstractCegarLoop]: Abstraction has 22900 states and 37583 transitions. [2024-11-22 01:43:47,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 01:43:47,678 INFO L276 IsEmpty]: Start isEmpty. Operand 22900 states and 37583 transitions. [2024-11-22 01:43:47,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2024-11-22 01:43:47,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:47,690 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:43:47,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-22 01:43:47,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-22 01:43:47,891 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:47,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:47,891 INFO L85 PathProgramCache]: Analyzing trace with hash -687130058, now seen corresponding path program 1 times [2024-11-22 01:43:47,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:47,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516194132] [2024-11-22 01:43:47,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:47,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:48,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-22 01:43:48,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:48,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516194132] [2024-11-22 01:43:48,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516194132] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:48,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142780658] [2024-11-22 01:43:48,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:48,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:48,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:48,321 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:43:48,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-22 01:43:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:48,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 3986 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 01:43:48,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:48,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 1197 trivial. 0 not checked. [2024-11-22 01:43:48,953 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:48,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142780658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:48,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:48,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-22 01:43:48,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663281065] [2024-11-22 01:43:48,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:48,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:43:48,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:48,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:43:48,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-22 01:43:48,957 INFO L87 Difference]: Start difference. First operand 22900 states and 37583 transitions. Second operand has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 01:43:49,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:49,847 INFO L93 Difference]: Finished difference Result 37994 states and 62406 transitions. [2024-11-22 01:43:49,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:43:49,847 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 529 [2024-11-22 01:43:49,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:49,982 INFO L225 Difference]: With dead ends: 37994 [2024-11-22 01:43:49,983 INFO L226 Difference]: Without dead ends: 22881 [2024-11-22 01:43:50,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-22 01:43:50,047 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 21 mSDsluCounter, 4211 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 5059 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:43:50,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 5059 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:43:50,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22881 states. [2024-11-22 01:43:50,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22881 to 22881. [2024-11-22 01:43:50,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22881 states, 18020 states have (on average 1.6235849056603773) internal successors, (29257), 18623 states have internal predecessors, (29257), 3495 states have call successors, (3495), 1174 states have call predecessors, (3495), 1365 states have return successors, (4793), 3399 states have call predecessors, (4793), 3476 states have call successors, (4793) [2024-11-22 01:43:50,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22881 states to 22881 states and 37545 transitions. [2024-11-22 01:43:50,937 INFO L78 Accepts]: Start accepts. Automaton has 22881 states and 37545 transitions. Word has length 529 [2024-11-22 01:43:50,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:50,938 INFO L471 AbstractCegarLoop]: Abstraction has 22881 states and 37545 transitions. [2024-11-22 01:43:50,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 01:43:50,938 INFO L276 IsEmpty]: Start isEmpty. Operand 22881 states and 37545 transitions. [2024-11-22 01:43:50,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2024-11-22 01:43:50,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:50,950 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:43:50,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-22 01:43:51,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:51,151 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:51,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:51,151 INFO L85 PathProgramCache]: Analyzing trace with hash -436151147, now seen corresponding path program 1 times [2024-11-22 01:43:51,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:51,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455247357] [2024-11-22 01:43:51,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:51,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:51,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2024-11-22 01:43:51,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:51,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455247357] [2024-11-22 01:43:51,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455247357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:51,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009868596] [2024-11-22 01:43:51,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:51,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:51,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:51,575 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:43:51,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-22 01:43:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:52,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 3982 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-22 01:43:52,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 207 proven. 15 refuted. 0 times theorem prover too weak. 1117 trivial. 0 not checked. [2024-11-22 01:43:52,870 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:43:54,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 1238 trivial. 0 not checked. [2024-11-22 01:43:54,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009868596] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:54,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-22 01:43:54,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 8] total 23 [2024-11-22 01:43:54,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054209852] [2024-11-22 01:43:54,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:54,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:43:54,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:54,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:43:54,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2024-11-22 01:43:54,183 INFO L87 Difference]: Start difference. First operand 22881 states and 37545 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 6 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (38), 7 states have call predecessors, (38), 6 states have call successors, (38) [2024-11-22 01:43:56,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:43:56,442 INFO L93 Difference]: Finished difference Result 39376 states and 64954 transitions. [2024-11-22 01:43:56,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:43:56,442 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 6 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (38), 7 states have call predecessors, (38), 6 states have call successors, (38) Word has length 529 [2024-11-22 01:43:56,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:43:56,637 INFO L225 Difference]: With dead ends: 39376 [2024-11-22 01:43:56,637 INFO L226 Difference]: Without dead ends: 29834 [2024-11-22 01:43:56,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1075 GetRequests, 1049 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2024-11-22 01:43:56,698 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 1769 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:43:56,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1785 Valid, 1991 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 1592 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 01:43:56,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29834 states. [2024-11-22 01:43:57,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29834 to 29567. [2024-11-22 01:43:57,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29567 states, 23450 states have (on average 1.629722814498934) internal successors, (38217), 24158 states have internal predecessors, (38217), 4411 states have call successors, (4411), 1488 states have call predecessors, (4411), 1705 states have return successors, (6016), 4195 states have call predecessors, (6016), 4386 states have call successors, (6016) [2024-11-22 01:43:58,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29567 states to 29567 states and 48644 transitions. [2024-11-22 01:43:58,170 INFO L78 Accepts]: Start accepts. Automaton has 29567 states and 48644 transitions. Word has length 529 [2024-11-22 01:43:58,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:43:58,170 INFO L471 AbstractCegarLoop]: Abstraction has 29567 states and 48644 transitions. [2024-11-22 01:43:58,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 7 states have internal predecessors, (173), 6 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (38), 7 states have call predecessors, (38), 6 states have call successors, (38) [2024-11-22 01:43:58,171 INFO L276 IsEmpty]: Start isEmpty. Operand 29567 states and 48644 transitions. [2024-11-22 01:43:58,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-22 01:43:58,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:43:58,191 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, 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, 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] [2024-11-22 01:43:58,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-22 01:43:58,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:58,392 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:43:58,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:43:58,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1227478714, now seen corresponding path program 1 times [2024-11-22 01:43:58,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:43:58,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059538689] [2024-11-22 01:43:58,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:58,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:43:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:58,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1351 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2024-11-22 01:43:58,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:43:58,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059538689] [2024-11-22 01:43:58,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059538689] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:43:58,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224959234] [2024-11-22 01:43:58,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:43:58,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:43:58,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:43:58,999 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:43:59,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-22 01:43:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:43:59,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 4197 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:43:59,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:43:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1351 backedges. 563 proven. 0 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2024-11-22 01:43:59,556 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:43:59,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224959234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:43:59,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:43:59,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:43:59,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044274483] [2024-11-22 01:43:59,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:43:59,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:43:59,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:43:59,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:43:59,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:43:59,559 INFO L87 Difference]: Start difference. First operand 29567 states and 48644 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-22 01:44:00,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:44:00,946 INFO L93 Difference]: Finished difference Result 49969 states and 83137 transitions. [2024-11-22 01:44:00,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:44:00,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 545 [2024-11-22 01:44:00,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:44:01,113 INFO L225 Difference]: With dead ends: 49969 [2024-11-22 01:44:01,114 INFO L226 Difference]: Without dead ends: 30827 [2024-11-22 01:44:01,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:44:01,195 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 139 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:44:01,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2362 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:44:01,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30827 states. [2024-11-22 01:44:02,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30827 to 30620. [2024-11-22 01:44:02,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30620 states, 24449 states have (on average 1.6395762607877622) internal successors, (40086), 25157 states have internal predecessors, (40086), 4438 states have call successors, (4438), 1515 states have call predecessors, (4438), 1732 states have return successors, (6043), 4222 states have call predecessors, (6043), 4413 states have call successors, (6043) [2024-11-22 01:44:02,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30620 states to 30620 states and 50567 transitions. [2024-11-22 01:44:02,782 INFO L78 Accepts]: Start accepts. Automaton has 30620 states and 50567 transitions. Word has length 545 [2024-11-22 01:44:02,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:44:02,782 INFO L471 AbstractCegarLoop]: Abstraction has 30620 states and 50567 transitions. [2024-11-22 01:44:02,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-22 01:44:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand 30620 states and 50567 transitions. [2024-11-22 01:44:02,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2024-11-22 01:44:02,800 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:44:02,802 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, 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, 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] [2024-11-22 01:44:02,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-22 01:44:03,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-22 01:44:03,003 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:44:03,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:44:03,003 INFO L85 PathProgramCache]: Analyzing trace with hash 631424866, now seen corresponding path program 1 times [2024-11-22 01:44:03,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:44:03,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949167074] [2024-11-22 01:44:03,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:03,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:44:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1351 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2024-11-22 01:44:03,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:44:03,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949167074] [2024-11-22 01:44:03,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949167074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:44:03,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018749418] [2024-11-22 01:44:03,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:44:03,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:44:03,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:44:03,633 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:44:03,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-22 01:44:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:44:04,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 4199 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:44:04,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:44:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1351 backedges. 495 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2024-11-22 01:44:04,281 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:44:04,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018749418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:44:04,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:44:04,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:44:04,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818725713] [2024-11-22 01:44:04,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:44:04,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:44:04,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:44:04,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:44:04,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:44:04,283 INFO L87 Difference]: Start difference. First operand 30620 states and 50567 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38)