./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec1_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec1_product23.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 be08b04703653fc518e8f41dc63d028f83e90f3984633a298492c10e4ad9cfd9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 07:27:46,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 07:27:46,318 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 07:27:46,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 07:27:46,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 07:27:46,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 07:27:46,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 07:27:46,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 07:27:46,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 07:27:46,363 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 07:27:46,363 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 07:27:46,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 07:27:46,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 07:27:46,365 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 07:27:46,366 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 07:27:46,366 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 07:27:46,366 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 07:27:46,366 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 07:27:46,366 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 07:27:46,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 07:27:46,367 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 07:27:46,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 07:27:46,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 07:27:46,368 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 07:27:46,368 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 07:27:46,368 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 07:27:46,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 07:27:46,368 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 07:27:46,369 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 07:27:46,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 07:27:46,370 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 07:27:46,370 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 07:27:46,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:27:46,370 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 07:27:46,370 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 07:27:46,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 07:27:46,371 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 07:27:46,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 07:27:46,371 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 07:27:46,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 07:27:46,372 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 07:27:46,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 07:27:46,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be08b04703653fc518e8f41dc63d028f83e90f3984633a298492c10e4ad9cfd9 [2024-11-16 07:27:46,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 07:27:46,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 07:27:46,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 07:27:46,645 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 07:27:46,646 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 07:27:46,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product23.cil.c [2024-11-16 07:27:48,149 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 07:27:48,468 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 07:27:48,469 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product23.cil.c [2024-11-16 07:27:48,498 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5989177e2/b9527142a4344c6185cfed0f18dbea3f/FLAG3500477fb [2024-11-16 07:27:48,512 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5989177e2/b9527142a4344c6185cfed0f18dbea3f [2024-11-16 07:27:48,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 07:27:48,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 07:27:48,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 07:27:48,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 07:27:48,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 07:27:48,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:27:48" (1/1) ... [2024-11-16 07:27:48,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462f1edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:48, skipping insertion in model container [2024-11-16 07:27:48,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:27:48" (1/1) ... [2024-11-16 07:27:48,590 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 07:27:49,190 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_spec1_product23.cil.c[58338,58351] [2024-11-16 07:27:49,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:27:49,237 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 07:27:49,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2024-11-16 07:27:49,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [150] [2024-11-16 07:27:49,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [516] [2024-11-16 07:27:49,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [700] [2024-11-16 07:27:49,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1055] [2024-11-16 07:27:49,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1175] [2024-11-16 07:27:49,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1188] [2024-11-16 07:27:49,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1223] [2024-11-16 07:27:49,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2820] [2024-11-16 07:27:49,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2829] [2024-11-16 07:27:49,364 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_spec1_product23.cil.c[58338,58351] [2024-11-16 07:27:49,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 07:27:49,438 INFO L204 MainTranslator]: Completed translation [2024-11-16 07:27:49,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49 WrapperNode [2024-11-16 07:27:49,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 07:27:49,440 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 07:27:49,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 07:27:49,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 07:27:49,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,543 INFO L138 Inliner]: procedures = 96, calls = 348, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 909 [2024-11-16 07:27:49,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 07:27:49,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 07:27:49,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 07:27:49,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 07:27:49,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,568 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,599 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-16 07:27:49,599 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,633 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,650 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 07:27:49,674 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 07:27:49,675 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 07:27:49,675 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 07:27:49,676 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (1/1) ... [2024-11-16 07:27:49,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 07:27:49,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:27:49,715 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) [2024-11-16 07:27:49,721 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 [2024-11-16 07:27:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-11-16 07:27:49,770 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-11-16 07:27:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 07:27:49,770 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-16 07:27:49,770 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-16 07:27:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-16 07:27:49,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-16 07:27:49,771 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-16 07:27:49,771 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-16 07:27:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-16 07:27:49,772 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-16 07:27:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-16 07:27:49,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-16 07:27:49,772 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-16 07:27:49,772 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-16 07:27:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-16 07:27:49,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-16 07:27:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-16 07:27:49,773 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-16 07:27:49,773 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-16 07:27:49,773 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-16 07:27:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-16 07:27:49,774 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-16 07:27:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-16 07:27:49,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-16 07:27:49,774 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-16 07:27:49,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-16 07:27:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-16 07:27:49,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-16 07:27:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-16 07:27:49,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-16 07:27:49,776 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-16 07:27:49,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-16 07:27:49,776 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-16 07:27:49,777 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-16 07:27:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-16 07:27:49,777 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-16 07:27:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-16 07:27:49,777 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-16 07:27:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-16 07:27:49,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-16 07:27:49,777 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-16 07:27:49,778 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-16 07:27:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 07:27:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 07:27:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 07:27:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 07:27:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 07:27:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 07:27:49,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 07:27:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 07:27:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-16 07:27:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-16 07:27:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-16 07:27:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-16 07:27:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-16 07:27:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-16 07:27:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-16 07:27:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-16 07:27:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-16 07:27:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-16 07:27:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-16 07:27:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-16 07:27:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-16 07:27:49,781 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-16 07:27:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-16 07:27:49,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-16 07:27:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-16 07:27:49,781 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-16 07:27:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-16 07:27:49,782 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-16 07:27:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-16 07:27:49,782 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-16 07:27:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 07:27:49,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 07:27:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-16 07:27:49,782 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-16 07:27:50,030 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 07:27:50,033 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 07:27:50,157 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2152-1: stopRequestedAtCurrentFloor__wrappee__weight_#res#1 := stopRequestedAtCurrentFloor__wrappee__weight_~retValue_acc~22#1; [2024-11-16 07:27:50,157 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2180: #res#1 := ~retValue_acc~23#1; [2024-11-16 07:27:50,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1094: #res := ~retValue_acc~5; [2024-11-16 07:27:50,231 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2808: #res := ~retValue_acc~27; [2024-11-16 07:27:50,302 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2096-1: isAnyLiftButtonPressed_#res#1 := isAnyLiftButtonPressed_~retValue_acc~21#1; [2024-11-16 07:27:50,303 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2033-1: stopRequestedInDirection__wrappee__twothirdsfull_#res#1 := stopRequestedInDirection__wrappee__twothirdsfull_~retValue_acc~19#1; [2024-11-16 07:27:50,303 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2062: #res#1 := ~retValue_acc~20#1; [2024-11-16 07:27:50,313 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2225: #res := ~retValue_acc~25; [2024-11-16 07:27:50,414 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1628-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~16#1; [2024-11-16 07:27:50,414 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1641-1: isIdle_#res#1 := isIdle_~retValue_acc~17#1; [2024-11-16 07:27:50,678 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2211-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~24#1; [2024-11-16 07:27:50,683 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1465: #res := ~retValue_acc~12; [2024-11-16 07:27:50,692 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3491: #res := ~retValue_acc~31; [2024-11-16 07:27:50,713 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1172: #res := ~retValue_acc~7; [2024-11-16 07:27:50,716 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1303: #res := ~retValue_acc~10; [2024-11-16 07:27:50,726 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1456: #res := ~retValue_acc~11; [2024-11-16 07:27:50,904 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1133: #res := ~retValue_acc~6; [2024-11-16 07:27:50,928 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1499: #res := ~retValue_acc~13; [2024-11-16 07:27:51,012 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3180: #res := ~retValue_acc~30; [2024-11-16 07:27:51,145 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1993: #res := ~retValue_acc~18; [2024-11-16 07:27:51,237 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1052-1: main_#res#1 := main_~retValue_acc~4#1; [2024-11-16 07:27:51,238 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1220-1: valid_product_#res#1 := valid_product_~retValue_acc~9#1; [2024-11-16 07:27:51,249 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2940: #res := ~retValue_acc~29; [2024-11-16 07:27:51,455 INFO L? ?]: Removed 471 outVars from TransFormulas that were not future-live. [2024-11-16 07:27:51,456 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 07:27:51,501 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 07:27:51,501 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 07:27:51,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:27:51 BoogieIcfgContainer [2024-11-16 07:27:51,501 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 07:27:51,505 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 07:27:51,505 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 07:27:51,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 07:27:51,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:27:48" (1/3) ... [2024-11-16 07:27:51,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4373d850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:27:51, skipping insertion in model container [2024-11-16 07:27:51,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:27:49" (2/3) ... [2024-11-16 07:27:51,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4373d850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:27:51, skipping insertion in model container [2024-11-16 07:27:51,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:27:51" (3/3) ... [2024-11-16 07:27:51,513 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product23.cil.c [2024-11-16 07:27:51,528 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 07:27:51,529 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 07:27:51,614 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 07:27:51,624 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;@70898ab7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 07:27:51,624 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 07:27:51,634 INFO L276 IsEmpty]: Start isEmpty. Operand has 619 states, 485 states have (on average 1.6391752577319587) internal successors, (795), 506 states have internal predecessors, (795), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 99 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-16 07:27:51,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-16 07:27:51,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:27:51,671 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 07:27:51,672 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:27:51,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:27:51,676 INFO L85 PathProgramCache]: Analyzing trace with hash 2065116879, now seen corresponding path program 1 times [2024-11-16 07:27:51,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:27:51,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154146686] [2024-11-16 07:27:51,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:27:51,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:27:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:52,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:27:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:52,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:52,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:27:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:52,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 07:27:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:52,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:52,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:27:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:27:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:27:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:27:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:27:53,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:27:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:27:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:27:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,332 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 07:27:53,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:27:53,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154146686] [2024-11-16 07:27:53,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154146686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:27:53,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866251098] [2024-11-16 07:27:53,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:27:53,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:27:53,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:27:53,338 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) [2024-11-16 07:27:53,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 07:27:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:53,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 07:27:53,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:27:53,813 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 07:27:53,814 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:27:53,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866251098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:27:53,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:27:53,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2024-11-16 07:27:53,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857008329] [2024-11-16 07:27:53,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:27:53,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 07:27:53,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:27:53,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 07:27:53,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:27:53,860 INFO L87 Difference]: Start difference. First operand has 619 states, 485 states have (on average 1.6391752577319587) internal successors, (795), 506 states have internal predecessors, (795), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 99 states have call predecessors, (105), 105 states have call successors, (105) Second operand has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 07:27:53,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:27:53,945 INFO L93 Difference]: Finished difference Result 642 states and 1037 transitions. [2024-11-16 07:27:53,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 07:27:53,952 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-16 07:27:53,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:27:53,973 INFO L225 Difference]: With dead ends: 642 [2024-11-16 07:27:53,973 INFO L226 Difference]: Without dead ends: 610 [2024-11-16 07:27:53,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 07:27:53,980 INFO L432 NwaCegarLoop]: 995 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:27:53,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:27:53,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-11-16 07:27:54,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 610. [2024-11-16 07:27:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 478 states have (on average 1.6380753138075315) internal successors, (783), 497 states have internal predecessors, (783), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-16 07:27:54,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 988 transitions. [2024-11-16 07:27:54,106 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 988 transitions. Word has length 132 [2024-11-16 07:27:54,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:27:54,111 INFO L471 AbstractCegarLoop]: Abstraction has 610 states and 988 transitions. [2024-11-16 07:27:54,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 07:27:54,112 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 988 transitions. [2024-11-16 07:27:54,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-16 07:27:54,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:27:54,123 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:27:54,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 07:27:54,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-16 07:27:54,324 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:27:54,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:27:54,325 INFO L85 PathProgramCache]: Analyzing trace with hash 116434153, now seen corresponding path program 1 times [2024-11-16 07:27:54,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:27:54,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674587490] [2024-11-16 07:27:54,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:27:54,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:27:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:54,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:27:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:54,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:54,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:27:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:54,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 07:27:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:54,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:54,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:27:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:27:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:27:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:27:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:27:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:27:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:27:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:27:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,293 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 07:27:55,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:27:55,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674587490] [2024-11-16 07:27:55,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674587490] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:27:55,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876432871] [2024-11-16 07:27:55,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:27:55,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:27:55,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:27:55,296 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) [2024-11-16 07:27:55,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 07:27:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:55,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 1876 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:27:55,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:27:55,733 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 07:27:55,734 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:27:55,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876432871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:27:55,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:27:55,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 07:27:55,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939000862] [2024-11-16 07:27:55,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:27:55,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:27:55,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:27:55,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:27:55,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:27:55,738 INFO L87 Difference]: Start difference. First operand 610 states and 988 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 07:27:55,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:27:55,870 INFO L93 Difference]: Finished difference Result 1720 states and 2802 transitions. [2024-11-16 07:27:55,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:27:55,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-16 07:27:55,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:27:55,883 INFO L225 Difference]: With dead ends: 1720 [2024-11-16 07:27:55,883 INFO L226 Difference]: Without dead ends: 1195 [2024-11-16 07:27:55,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:27:55,894 INFO L432 NwaCegarLoop]: 1779 mSDtfsCounter, 965 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:27:55,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 2738 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:27:55,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2024-11-16 07:27:55,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1192. [2024-11-16 07:27:55,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 938 states have (on average 1.6439232409381663) internal successors, (1542), 971 states have internal predecessors, (1542), 201 states have call successors, (201), 52 states have call predecessors, (201), 52 states have return successors, (203), 194 states have call predecessors, (203), 196 states have call successors, (203) [2024-11-16 07:27:56,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1946 transitions. [2024-11-16 07:27:56,014 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1946 transitions. Word has length 135 [2024-11-16 07:27:56,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:27:56,015 INFO L471 AbstractCegarLoop]: Abstraction has 1192 states and 1946 transitions. [2024-11-16 07:27:56,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 07:27:56,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1946 transitions. [2024-11-16 07:27:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-16 07:27:56,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:27:56,029 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:27:56,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 07:27:56,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-16 07:27:56,230 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:27:56,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:27:56,230 INFO L85 PathProgramCache]: Analyzing trace with hash -690803225, now seen corresponding path program 1 times [2024-11-16 07:27:56,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:27:56,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740437752] [2024-11-16 07:27:56,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:27:56,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:27:56,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:56,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:27:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:56,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:56,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:27:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:56,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-16 07:27:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:56,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:56,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-16 07:27:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:56,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 07:27:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:56,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:27:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:27:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:27:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:27:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:27:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:27:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 07:27:57,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:27:57,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740437752] [2024-11-16 07:27:57,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740437752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:27:57,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976210019] [2024-11-16 07:27:57,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:27:57,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:27:57,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:27:57,051 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) [2024-11-16 07:27:57,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 07:27:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:57,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 1878 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:27:57,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:27:57,493 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:27:57,495 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:27:57,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976210019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:27:57,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:27:57,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-16 07:27:57,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17081136] [2024-11-16 07:27:57,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:27:57,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:27:57,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:27:57,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:27:57,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:27:57,498 INFO L87 Difference]: Start difference. First operand 1192 states and 1946 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:27:57,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:27:57,599 INFO L93 Difference]: Finished difference Result 2377 states and 3888 transitions. [2024-11-16 07:27:57,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 07:27:57,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2024-11-16 07:27:57,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:27:57,610 INFO L225 Difference]: With dead ends: 2377 [2024-11-16 07:27:57,611 INFO L226 Difference]: Without dead ends: 1192 [2024-11-16 07:27:57,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:27:57,619 INFO L432 NwaCegarLoop]: 976 mSDtfsCounter, 5 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:27:57,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2922 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:27:57,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2024-11-16 07:27:57,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2024-11-16 07:27:57,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 938 states have (on average 1.6417910447761195) internal successors, (1540), 971 states have internal predecessors, (1540), 201 states have call successors, (201), 52 states have call predecessors, (201), 52 states have return successors, (203), 194 states have call predecessors, (203), 196 states have call successors, (203) [2024-11-16 07:27:57,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1944 transitions. [2024-11-16 07:27:57,702 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1944 transitions. Word has length 136 [2024-11-16 07:27:57,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:27:57,702 INFO L471 AbstractCegarLoop]: Abstraction has 1192 states and 1944 transitions. [2024-11-16 07:27:57,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:27:57,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1944 transitions. [2024-11-16 07:27:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-16 07:27:57,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:27:57,711 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:27:57,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 07:27:57,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:27:57,917 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:27:57,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:27:57,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1629569679, now seen corresponding path program 1 times [2024-11-16 07:27:57,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:27:57,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861853944] [2024-11-16 07:27:57,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:27:57,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:27:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:27:58,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:27:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 07:27:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:27:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-16 07:27:58,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:27:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:27:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:27:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:27:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:27:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:27:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:58,668 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 07:27:58,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:27:58,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861853944] [2024-11-16 07:27:58,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861853944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:27:58,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981901682] [2024-11-16 07:27:58,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:27:58,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:27:58,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:27:58,670 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) [2024-11-16 07:27:58,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 07:27:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:59,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 1880 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:27:59,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:27:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:27:59,089 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:27:59,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981901682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:27:59,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:27:59,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-16 07:27:59,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386188828] [2024-11-16 07:27:59,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:27:59,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:27:59,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:27:59,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:27:59,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:27:59,095 INFO L87 Difference]: Start difference. First operand 1192 states and 1944 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:27:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:27:59,167 INFO L93 Difference]: Finished difference Result 2377 states and 3884 transitions. [2024-11-16 07:27:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 07:27:59,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-16 07:27:59,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:27:59,177 INFO L225 Difference]: With dead ends: 2377 [2024-11-16 07:27:59,177 INFO L226 Difference]: Without dead ends: 1192 [2024-11-16 07:27:59,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:27:59,187 INFO L432 NwaCegarLoop]: 976 mSDtfsCounter, 4 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:27:59,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2922 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:27:59,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2024-11-16 07:27:59,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2024-11-16 07:27:59,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 938 states have (on average 1.6396588486140724) internal successors, (1538), 971 states have internal predecessors, (1538), 201 states have call successors, (201), 52 states have call predecessors, (201), 52 states have return successors, (203), 194 states have call predecessors, (203), 196 states have call successors, (203) [2024-11-16 07:27:59,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1942 transitions. [2024-11-16 07:27:59,246 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1942 transitions. Word has length 138 [2024-11-16 07:27:59,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:27:59,246 INFO L471 AbstractCegarLoop]: Abstraction has 1192 states and 1942 transitions. [2024-11-16 07:27:59,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:27:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1942 transitions. [2024-11-16 07:27:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-16 07:27:59,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:27:59,255 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:27:59,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 07:27:59,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:27:59,456 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:27:59,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:27:59,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1606614791, now seen corresponding path program 1 times [2024-11-16 07:27:59,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:27:59,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173845701] [2024-11-16 07:27:59,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:27:59,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:27:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:59,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:27:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:59,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:59,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:27:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:59,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 07:27:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:59,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:27:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:27:59,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:27:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-16 07:28:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,231 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 07:28:00,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:00,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173845701] [2024-11-16 07:28:00,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173845701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:00,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567878916] [2024-11-16 07:28:00,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:00,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:00,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:00,234 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) [2024-11-16 07:28:00,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 07:28:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:00,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 1882 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:28:00,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:28:00,662 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:00,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567878916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:00,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:00,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-16 07:28:00,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574111706] [2024-11-16 07:28:00,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:00,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:28:00,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:00,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:28:00,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:28:00,664 INFO L87 Difference]: Start difference. First operand 1192 states and 1942 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:00,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:00,751 INFO L93 Difference]: Finished difference Result 2382 states and 3885 transitions. [2024-11-16 07:28:00,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:28:00,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2024-11-16 07:28:00,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:00,761 INFO L225 Difference]: With dead ends: 2382 [2024-11-16 07:28:00,762 INFO L226 Difference]: Without dead ends: 1201 [2024-11-16 07:28:00,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:28:00,769 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 13 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:00,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2919 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:28:00,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2024-11-16 07:28:00,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1201. [2024-11-16 07:28:00,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 946 states have (on average 1.6384778012684988) internal successors, (1550), 979 states have internal predecessors, (1550), 201 states have call successors, (201), 53 states have call predecessors, (201), 53 states have return successors, (203), 194 states have call predecessors, (203), 196 states have call successors, (203) [2024-11-16 07:28:00,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1954 transitions. [2024-11-16 07:28:00,814 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1954 transitions. Word has length 140 [2024-11-16 07:28:00,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:00,814 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1954 transitions. [2024-11-16 07:28:00,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:00,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1954 transitions. [2024-11-16 07:28:00,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-16 07:28:00,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:00,822 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:28:00,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:01,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:01,023 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:01,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:01,024 INFO L85 PathProgramCache]: Analyzing trace with hash -733664476, now seen corresponding path program 1 times [2024-11-16 07:28:01,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:01,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491820979] [2024-11-16 07:28:01,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:01,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 07:28:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 07:28:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:28:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 07:28:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 07:28:01,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:01,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491820979] [2024-11-16 07:28:01,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491820979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:01,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741294351] [2024-11-16 07:28:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:01,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:01,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:01,752 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) [2024-11-16 07:28:01,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 07:28:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:02,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 1883 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:28:02,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:28:02,154 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:02,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741294351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:02,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:02,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-16 07:28:02,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919277633] [2024-11-16 07:28:02,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:02,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:28:02,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:02,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:28:02,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:28:02,157 INFO L87 Difference]: Start difference. First operand 1201 states and 1954 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:02,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:02,249 INFO L93 Difference]: Finished difference Result 2384 states and 3886 transitions. [2024-11-16 07:28:02,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:28:02,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-11-16 07:28:02,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:02,260 INFO L225 Difference]: With dead ends: 2384 [2024-11-16 07:28:02,260 INFO L226 Difference]: Without dead ends: 1201 [2024-11-16 07:28:02,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:28:02,268 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 11 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:02,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2919 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:28:02,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2024-11-16 07:28:02,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1201. [2024-11-16 07:28:02,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 946 states have (on average 1.6374207188160677) internal successors, (1549), 979 states have internal predecessors, (1549), 201 states have call successors, (201), 53 states have call predecessors, (201), 53 states have return successors, (203), 194 states have call predecessors, (203), 196 states have call successors, (203) [2024-11-16 07:28:02,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1953 transitions. [2024-11-16 07:28:02,309 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1953 transitions. Word has length 141 [2024-11-16 07:28:02,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:02,310 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1953 transitions. [2024-11-16 07:28:02,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:02,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1953 transitions. [2024-11-16 07:28:02,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-16 07:28:02,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:02,318 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:28:02,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 07:28:02,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:02,519 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:02,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:02,520 INFO L85 PathProgramCache]: Analyzing trace with hash -48201276, now seen corresponding path program 1 times [2024-11-16 07:28:02,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:02,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763500868] [2024-11-16 07:28:02,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:02,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:02,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:02,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:02,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 07:28:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:02,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 07:28:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:02,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:02,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:28:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 07:28:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,265 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 07:28:03,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:03,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763500868] [2024-11-16 07:28:03,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763500868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:03,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157965032] [2024-11-16 07:28:03,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:03,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:03,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:03,268 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) [2024-11-16 07:28:03,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 07:28:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:03,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 1884 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:28:03,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-16 07:28:03,681 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:03,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157965032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:03,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:03,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-16 07:28:03,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096453580] [2024-11-16 07:28:03,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:03,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:28:03,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:03,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:28:03,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:28:03,684 INFO L87 Difference]: Start difference. First operand 1201 states and 1953 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:03,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:03,803 INFO L93 Difference]: Finished difference Result 2384 states and 3885 transitions. [2024-11-16 07:28:03,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:28:03,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-11-16 07:28:03,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:03,816 INFO L225 Difference]: With dead ends: 2384 [2024-11-16 07:28:03,816 INFO L226 Difference]: Without dead ends: 1201 [2024-11-16 07:28:03,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:28:03,825 INFO L432 NwaCegarLoop]: 975 mSDtfsCounter, 10 mSDsluCounter, 1944 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:03,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2919 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:28:03,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2024-11-16 07:28:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1201. [2024-11-16 07:28:03,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 946 states have (on average 1.6363636363636365) internal successors, (1548), 979 states have internal predecessors, (1548), 201 states have call successors, (201), 53 states have call predecessors, (201), 53 states have return successors, (203), 194 states have call predecessors, (203), 196 states have call successors, (203) [2024-11-16 07:28:03,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1952 transitions. [2024-11-16 07:28:03,878 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1952 transitions. Word has length 142 [2024-11-16 07:28:03,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:03,879 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1952 transitions. [2024-11-16 07:28:03,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:03,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1952 transitions. [2024-11-16 07:28:03,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-16 07:28:03,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:03,888 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:28:03,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:04,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:04,091 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:04,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:04,092 INFO L85 PathProgramCache]: Analyzing trace with hash -54002111, now seen corresponding path program 1 times [2024-11-16 07:28:04,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:04,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640674023] [2024-11-16 07:28:04,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:04,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-16 07:28:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:28:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 07:28:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:04,967 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-16 07:28:04,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:04,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640674023] [2024-11-16 07:28:04,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640674023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:04,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899187688] [2024-11-16 07:28:04,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:04,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:04,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:04,970 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) [2024-11-16 07:28:04,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 07:28:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:05,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:28:05,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:28:05,407 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:05,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899187688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:05,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:05,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-16 07:28:05,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30086834] [2024-11-16 07:28:05,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:05,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:28:05,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:05,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:28:05,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:28:05,411 INFO L87 Difference]: Start difference. First operand 1201 states and 1952 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:05,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:05,559 INFO L93 Difference]: Finished difference Result 2440 states and 3987 transitions. [2024-11-16 07:28:05,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 07:28:05,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-16 07:28:05,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:05,570 INFO L225 Difference]: With dead ends: 2440 [2024-11-16 07:28:05,570 INFO L226 Difference]: Without dead ends: 1231 [2024-11-16 07:28:05,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:28:05,578 INFO L432 NwaCegarLoop]: 950 mSDtfsCounter, 76 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:05,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2810 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:28:05,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-11-16 07:28:05,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1201. [2024-11-16 07:28:05,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 946 states have (on average 1.6257928118393234) internal successors, (1538), 979 states have internal predecessors, (1538), 201 states have call successors, (201), 53 states have call predecessors, (201), 53 states have return successors, (203), 194 states have call predecessors, (203), 196 states have call successors, (203) [2024-11-16 07:28:05,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1942 transitions. [2024-11-16 07:28:05,618 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1942 transitions. Word has length 143 [2024-11-16 07:28:05,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:05,620 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1942 transitions. [2024-11-16 07:28:05,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:05,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1942 transitions. [2024-11-16 07:28:05,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-16 07:28:05,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:05,627 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:28:05,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:05,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-16 07:28:05,832 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:05,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:05,832 INFO L85 PathProgramCache]: Analyzing trace with hash 2126189367, now seen corresponding path program 1 times [2024-11-16 07:28:05,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:05,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976065279] [2024-11-16 07:28:05,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:05,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:06,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-16 07:28:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:28:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 07:28:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:06,698 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-16 07:28:06,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:06,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976065279] [2024-11-16 07:28:06,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976065279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:06,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44583360] [2024-11-16 07:28:06,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:06,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:06,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:06,701 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) [2024-11-16 07:28:06,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 07:28:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:07,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 1887 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:28:07,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:07,147 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:28:07,147 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:07,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44583360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:07,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:07,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-16 07:28:07,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218575379] [2024-11-16 07:28:07,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:07,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:28:07,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:07,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:28:07,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:28:07,151 INFO L87 Difference]: Start difference. First operand 1201 states and 1942 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:07,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:07,332 INFO L93 Difference]: Finished difference Result 2440 states and 3967 transitions. [2024-11-16 07:28:07,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 07:28:07,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 145 [2024-11-16 07:28:07,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:07,342 INFO L225 Difference]: With dead ends: 2440 [2024-11-16 07:28:07,342 INFO L226 Difference]: Without dead ends: 1231 [2024-11-16 07:28:07,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:28:07,349 INFO L432 NwaCegarLoop]: 950 mSDtfsCounter, 75 mSDsluCounter, 1860 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:07,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2810 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:28:07,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2024-11-16 07:28:07,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1201. [2024-11-16 07:28:07,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 946 states have (on average 1.6152219873150107) internal successors, (1528), 979 states have internal predecessors, (1528), 201 states have call successors, (201), 53 states have call predecessors, (201), 53 states have return successors, (203), 194 states have call predecessors, (203), 196 states have call successors, (203) [2024-11-16 07:28:07,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1932 transitions. [2024-11-16 07:28:07,386 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1932 transitions. Word has length 145 [2024-11-16 07:28:07,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:07,387 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1932 transitions. [2024-11-16 07:28:07,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:07,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1932 transitions. [2024-11-16 07:28:07,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-16 07:28:07,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:07,393 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-16 07:28:07,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-16 07:28:07,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:07,594 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:07,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:07,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2055302241, now seen corresponding path program 1 times [2024-11-16 07:28:07,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:07,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897361674] [2024-11-16 07:28:07,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:07,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:07,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:07,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:07,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 07:28:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:28:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:28:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:08,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-16 07:28:08,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:08,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897361674] [2024-11-16 07:28:08,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897361674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:08,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689505340] [2024-11-16 07:28:08,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:08,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:08,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:08,406 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) [2024-11-16 07:28:08,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-16 07:28:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:08,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:28:08,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:08,897 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:28:08,897 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:08,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689505340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:08,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:08,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-16 07:28:08,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618636809] [2024-11-16 07:28:08,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:08,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:28:08,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:08,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:28:08,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:28:08,901 INFO L87 Difference]: Start difference. First operand 1201 states and 1932 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:09,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:09,109 INFO L93 Difference]: Finished difference Result 2494 states and 4028 transitions. [2024-11-16 07:28:09,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:28:09,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2024-11-16 07:28:09,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:09,120 INFO L225 Difference]: With dead ends: 2494 [2024-11-16 07:28:09,120 INFO L226 Difference]: Without dead ends: 1315 [2024-11-16 07:28:09,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:28:09,127 INFO L432 NwaCegarLoop]: 983 mSDtfsCounter, 130 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:09,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2841 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 07:28:09,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2024-11-16 07:28:09,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1261. [2024-11-16 07:28:09,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1004 states have (on average 1.6195219123505975) internal successors, (1626), 1038 states have internal predecessors, (1626), 201 states have call successors, (201), 54 states have call predecessors, (201), 55 states have return successors, (203), 194 states have call predecessors, (203), 196 states have call successors, (203) [2024-11-16 07:28:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 2030 transitions. [2024-11-16 07:28:09,170 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 2030 transitions. Word has length 147 [2024-11-16 07:28:09,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:09,171 INFO L471 AbstractCegarLoop]: Abstraction has 1261 states and 2030 transitions. [2024-11-16 07:28:09,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 2030 transitions. [2024-11-16 07:28:09,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-16 07:28:09,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:09,178 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:28:09,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:09,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-16 07:28:09,380 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:09,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:09,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1783560572, now seen corresponding path program 1 times [2024-11-16 07:28:09,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:09,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054512883] [2024-11-16 07:28:09,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:09,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:09,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:09,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:09,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:09,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:09,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:09,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:28:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:28:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,286 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-16 07:28:10,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:10,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054512883] [2024-11-16 07:28:10,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054512883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:10,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176682007] [2024-11-16 07:28:10,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:10,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:10,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:10,289 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) [2024-11-16 07:28:10,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-16 07:28:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:10,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 1890 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:28:10,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:10,762 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:28:10,762 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:10,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176682007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:10,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:10,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-16 07:28:10,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349914407] [2024-11-16 07:28:10,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:10,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:28:10,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:10,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:28:10,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:28:10,764 INFO L87 Difference]: Start difference. First operand 1261 states and 2030 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:10,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:10,939 INFO L93 Difference]: Finished difference Result 2518 states and 4065 transitions. [2024-11-16 07:28:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:28:10,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2024-11-16 07:28:10,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:10,950 INFO L225 Difference]: With dead ends: 2518 [2024-11-16 07:28:10,950 INFO L226 Difference]: Without dead ends: 1315 [2024-11-16 07:28:10,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:28:10,956 INFO L432 NwaCegarLoop]: 982 mSDtfsCounter, 124 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:10,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 2814 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:28:10,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2024-11-16 07:28:10,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1261. [2024-11-16 07:28:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1004 states have (on average 1.6145418326693226) internal successors, (1621), 1038 states have internal predecessors, (1621), 201 states have call successors, (201), 54 states have call predecessors, (201), 55 states have return successors, (203), 194 states have call predecessors, (203), 196 states have call successors, (203) [2024-11-16 07:28:10,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 2025 transitions. [2024-11-16 07:28:10,998 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 2025 transitions. Word has length 148 [2024-11-16 07:28:10,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:10,999 INFO L471 AbstractCegarLoop]: Abstraction has 1261 states and 2025 transitions. [2024-11-16 07:28:10,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:10,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 2025 transitions. [2024-11-16 07:28:11,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-16 07:28:11,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:11,006 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:28:11,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-16 07:28:11,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-16 07:28:11,207 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:11,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:11,207 INFO L85 PathProgramCache]: Analyzing trace with hash 430500872, now seen corresponding path program 1 times [2024-11-16 07:28:11,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:11,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041057557] [2024-11-16 07:28:11,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:11,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:28:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:28:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:28:11,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:11,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041057557] [2024-11-16 07:28:11,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041057557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:11,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246486262] [2024-11-16 07:28:11,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:11,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:11,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:11,899 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) [2024-11-16 07:28:11,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-16 07:28:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:12,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 07:28:12,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:12,356 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 07:28:12,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:12,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246486262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:12,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:12,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-16 07:28:12,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921128095] [2024-11-16 07:28:12,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:12,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:28:12,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:12,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:28:12,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:28:12,360 INFO L87 Difference]: Start difference. First operand 1261 states and 2025 transitions. Second operand has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 07:28:12,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:12,522 INFO L93 Difference]: Finished difference Result 2506 states and 4037 transitions. [2024-11-16 07:28:12,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:28:12,523 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 148 [2024-11-16 07:28:12,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:12,532 INFO L225 Difference]: With dead ends: 2506 [2024-11-16 07:28:12,533 INFO L226 Difference]: Without dead ends: 1327 [2024-11-16 07:28:12,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:28:12,539 INFO L432 NwaCegarLoop]: 955 mSDtfsCounter, 113 mSDsluCounter, 5641 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6596 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:12,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6596 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:28:12,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-11-16 07:28:12,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1289. [2024-11-16 07:28:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 1028 states have (on average 1.6147859922178989) internal successors, (1660), 1065 states have internal predecessors, (1660), 202 states have call successors, (202), 54 states have call predecessors, (202), 58 states have return successors, (208), 195 states have call predecessors, (208), 197 states have call successors, (208) [2024-11-16 07:28:12,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 2070 transitions. [2024-11-16 07:28:12,583 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 2070 transitions. Word has length 148 [2024-11-16 07:28:12,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:12,584 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 2070 transitions. [2024-11-16 07:28:12,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 07:28:12,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 2070 transitions. [2024-11-16 07:28:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-16 07:28:12,591 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:12,591 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:28:12,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-16 07:28:12,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 07:28:12,792 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:12,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:12,793 INFO L85 PathProgramCache]: Analyzing trace with hash 158064585, now seen corresponding path program 1 times [2024-11-16 07:28:12,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:12,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211880276] [2024-11-16 07:28:12,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:12,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:13,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:28:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:28:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,443 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:28:13,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:13,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211880276] [2024-11-16 07:28:13,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211880276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:13,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786825182] [2024-11-16 07:28:13,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:13,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:13,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:13,446 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) [2024-11-16 07:28:13,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-16 07:28:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:13,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 07:28:13,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-16 07:28:13,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:13,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786825182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:13,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:13,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-16 07:28:13,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098211833] [2024-11-16 07:28:13,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:13,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:28:13,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:13,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:28:13,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:28:13,923 INFO L87 Difference]: Start difference. First operand 1289 states and 2070 transitions. Second operand has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 07:28:14,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:14,037 INFO L93 Difference]: Finished difference Result 2382 states and 3839 transitions. [2024-11-16 07:28:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:28:14,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 148 [2024-11-16 07:28:14,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:14,052 INFO L225 Difference]: With dead ends: 2382 [2024-11-16 07:28:14,052 INFO L226 Difference]: Without dead ends: 1337 [2024-11-16 07:28:14,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:28:14,059 INFO L432 NwaCegarLoop]: 966 mSDtfsCounter, 86 mSDsluCounter, 4756 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 5722 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:14,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 5722 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:28:14,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2024-11-16 07:28:14,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1327. [2024-11-16 07:28:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1060 states have (on average 1.6150943396226416) internal successors, (1712), 1101 states have internal predecessors, (1712), 204 states have call successors, (204), 54 states have call predecessors, (204), 62 states have return successors, (216), 197 states have call predecessors, (216), 199 states have call successors, (216) [2024-11-16 07:28:14,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 2132 transitions. [2024-11-16 07:28:14,109 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 2132 transitions. Word has length 148 [2024-11-16 07:28:14,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:14,110 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 2132 transitions. [2024-11-16 07:28:14,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 07:28:14,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 2132 transitions. [2024-11-16 07:28:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-16 07:28:14,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:14,117 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:28:14,139 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-16 07:28:14,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-16 07:28:14,318 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:14,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:14,318 INFO L85 PathProgramCache]: Analyzing trace with hash -2008314292, now seen corresponding path program 1 times [2024-11-16 07:28:14,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:14,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639215587] [2024-11-16 07:28:14,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:14,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:14,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:14,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:14,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:14,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:14,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:14,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-16 07:28:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:14,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:28:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-16 07:28:15,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:15,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639215587] [2024-11-16 07:28:15,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639215587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:15,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37536792] [2024-11-16 07:28:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:15,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:15,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:15,059 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) [2024-11-16 07:28:15,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-16 07:28:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:15,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:28:15,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:15,451 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-16 07:28:15,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:15,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37536792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:15,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:15,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-16 07:28:15,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688993956] [2024-11-16 07:28:15,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:15,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:28:15,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:15,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:28:15,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:28:15,454 INFO L87 Difference]: Start difference. First operand 1327 states and 2132 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:15,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:15,528 INFO L93 Difference]: Finished difference Result 2514 states and 4058 transitions. [2024-11-16 07:28:15,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:28:15,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2024-11-16 07:28:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:15,542 INFO L225 Difference]: With dead ends: 2514 [2024-11-16 07:28:15,542 INFO L226 Difference]: Without dead ends: 1327 [2024-11-16 07:28:15,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:28:15,549 INFO L432 NwaCegarLoop]: 964 mSDtfsCounter, 13 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:15,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2888 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:28:15,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1327 states. [2024-11-16 07:28:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1327 to 1327. [2024-11-16 07:28:15,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1060 states have (on average 1.6084905660377358) internal successors, (1705), 1101 states have internal predecessors, (1705), 204 states have call successors, (204), 54 states have call predecessors, (204), 62 states have return successors, (216), 197 states have call predecessors, (216), 199 states have call successors, (216) [2024-11-16 07:28:15,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 2125 transitions. [2024-11-16 07:28:15,605 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 2125 transitions. Word has length 149 [2024-11-16 07:28:15,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:15,605 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 2125 transitions. [2024-11-16 07:28:15,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-16 07:28:15,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 2125 transitions. [2024-11-16 07:28:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-16 07:28:15,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:15,613 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-16 07:28:15,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:15,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:15,814 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:15,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:15,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1073358935, now seen corresponding path program 1 times [2024-11-16 07:28:15,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:15,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308304913] [2024-11-16 07:28:15,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:15,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:28:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:28:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,487 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-16 07:28:16,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:16,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308304913] [2024-11-16 07:28:16,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308304913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:16,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431695375] [2024-11-16 07:28:16,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:16,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:16,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:16,490 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) [2024-11-16 07:28:16,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-16 07:28:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:16,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 07:28:16,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:16,970 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-16 07:28:16,971 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:16,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431695375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:16,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:16,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-16 07:28:16,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214143877] [2024-11-16 07:28:16,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:16,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:28:16,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:16,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:28:16,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:28:16,974 INFO L87 Difference]: Start difference. First operand 1327 states and 2125 transitions. Second operand has 7 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 07:28:17,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:17,088 INFO L93 Difference]: Finished difference Result 2436 states and 3924 transitions. [2024-11-16 07:28:17,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:28:17,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 149 [2024-11-16 07:28:17,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:17,100 INFO L225 Difference]: With dead ends: 2436 [2024-11-16 07:28:17,100 INFO L226 Difference]: Without dead ends: 1391 [2024-11-16 07:28:17,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:28:17,106 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 95 mSDsluCounter, 4733 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5696 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:17,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5696 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:28:17,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2024-11-16 07:28:17,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1327. [2024-11-16 07:28:17,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1060 states have (on average 1.6084905660377358) internal successors, (1705), 1101 states have internal predecessors, (1705), 204 states have call successors, (204), 54 states have call predecessors, (204), 62 states have return successors, (216), 197 states have call predecessors, (216), 199 states have call successors, (216) [2024-11-16 07:28:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 2125 transitions. [2024-11-16 07:28:17,154 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 2125 transitions. Word has length 149 [2024-11-16 07:28:17,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:17,154 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 2125 transitions. [2024-11-16 07:28:17,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 6 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 07:28:17,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 2125 transitions. [2024-11-16 07:28:17,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-16 07:28:17,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:17,162 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 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] [2024-11-16 07:28:17,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-16 07:28:17,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-16 07:28:17,363 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:17,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:17,364 INFO L85 PathProgramCache]: Analyzing trace with hash -392043704, now seen corresponding path program 1 times [2024-11-16 07:28:17,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:17,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267099826] [2024-11-16 07:28:17,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:17,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:28:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-16 07:28:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:17,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:18,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:18,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:18,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-16 07:28:18,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:18,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267099826] [2024-11-16 07:28:18,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267099826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:18,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509526039] [2024-11-16 07:28:18,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:18,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:18,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:18,011 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) [2024-11-16 07:28:18,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-16 07:28:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:18,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 1882 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 07:28:18,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-16 07:28:18,480 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:18,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509526039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:18,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:18,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-16 07:28:18,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185916308] [2024-11-16 07:28:18,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:18,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 07:28:18,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:18,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 07:28:18,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-16 07:28:18,482 INFO L87 Difference]: Start difference. First operand 1327 states and 2125 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 07:28:18,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:18,625 INFO L93 Difference]: Finished difference Result 2412 states and 3884 transitions. [2024-11-16 07:28:18,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 07:28:18,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 149 [2024-11-16 07:28:18,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:18,635 INFO L225 Difference]: With dead ends: 2412 [2024-11-16 07:28:18,635 INFO L226 Difference]: Without dead ends: 1367 [2024-11-16 07:28:18,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-16 07:28:18,641 INFO L432 NwaCegarLoop]: 952 mSDtfsCounter, 113 mSDsluCounter, 5625 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6577 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:18,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6577 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:28:18,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2024-11-16 07:28:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1327. [2024-11-16 07:28:18,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1327 states, 1060 states have (on average 1.6084905660377358) internal successors, (1705), 1101 states have internal predecessors, (1705), 204 states have call successors, (204), 54 states have call predecessors, (204), 62 states have return successors, (216), 197 states have call predecessors, (216), 199 states have call successors, (216) [2024-11-16 07:28:18,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 2125 transitions. [2024-11-16 07:28:18,686 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 2125 transitions. Word has length 149 [2024-11-16 07:28:18,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:18,687 INFO L471 AbstractCegarLoop]: Abstraction has 1327 states and 2125 transitions. [2024-11-16 07:28:18,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 07:28:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 2125 transitions. [2024-11-16 07:28:18,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-16 07:28:18,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:18,695 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-16 07:28:18,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:18,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-16 07:28:18,896 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:18,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:18,896 INFO L85 PathProgramCache]: Analyzing trace with hash -589267136, now seen corresponding path program 1 times [2024-11-16 07:28:18,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:18,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844044461] [2024-11-16 07:28:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:18,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-16 07:28:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:28:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,477 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-16 07:28:19,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:19,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844044461] [2024-11-16 07:28:19,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844044461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:19,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691945890] [2024-11-16 07:28:19,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:19,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:19,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:19,481 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) [2024-11-16 07:28:19,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-16 07:28:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:19,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 1883 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 07:28:19,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:19,872 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-16 07:28:19,872 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:19,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691945890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:19,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:19,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-16 07:28:19,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59525014] [2024-11-16 07:28:19,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:19,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:28:19,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:19,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:28:19,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:28:19,874 INFO L87 Difference]: Start difference. First operand 1327 states and 2125 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-11-16 07:28:19,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:19,944 INFO L93 Difference]: Finished difference Result 2471 states and 3980 transitions. [2024-11-16 07:28:19,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 07:28:19,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 150 [2024-11-16 07:28:19,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:19,954 INFO L225 Difference]: With dead ends: 2471 [2024-11-16 07:28:19,954 INFO L226 Difference]: Without dead ends: 1339 [2024-11-16 07:28:19,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:28:19,960 INFO L432 NwaCegarLoop]: 958 mSDtfsCounter, 7 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2861 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:19,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2861 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:28:19,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2024-11-16 07:28:19,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1339. [2024-11-16 07:28:20,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1072 states have (on average 1.5960820895522387) internal successors, (1711), 1113 states have internal predecessors, (1711), 204 states have call successors, (204), 54 states have call predecessors, (204), 62 states have return successors, (216), 197 states have call predecessors, (216), 199 states have call successors, (216) [2024-11-16 07:28:20,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 2131 transitions. [2024-11-16 07:28:20,009 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 2131 transitions. Word has length 150 [2024-11-16 07:28:20,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:20,009 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 2131 transitions. [2024-11-16 07:28:20,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-11-16 07:28:20,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 2131 transitions. [2024-11-16 07:28:20,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-16 07:28:20,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:20,016 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-11-16 07:28:20,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-16 07:28:20,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-16 07:28:20,217 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:20,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:20,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1829416464, now seen corresponding path program 1 times [2024-11-16 07:28:20,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:20,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852282981] [2024-11-16 07:28:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:20,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:28:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 07:28:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-16 07:28:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 07:28:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-16 07:28:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:20,795 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 07:28:20,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:20,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852282981] [2024-11-16 07:28:20,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852282981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:20,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674256275] [2024-11-16 07:28:20,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:20,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:20,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:20,797 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) [2024-11-16 07:28:20,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-16 07:28:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:21,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 1887 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 07:28:21,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:21,312 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:28:21,312 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:21,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674256275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:21,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:21,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-16 07:28:21,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581834168] [2024-11-16 07:28:21,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:21,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:28:21,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:21,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:28:21,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:28:21,314 INFO L87 Difference]: Start difference. First operand 1339 states and 2131 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 07:28:21,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:21,834 INFO L93 Difference]: Finished difference Result 2390 states and 3882 transitions. [2024-11-16 07:28:21,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 07:28:21,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-11-16 07:28:21,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:21,845 INFO L225 Difference]: With dead ends: 2390 [2024-11-16 07:28:21,845 INFO L226 Difference]: Without dead ends: 1355 [2024-11-16 07:28:21,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:28:21,850 INFO L432 NwaCegarLoop]: 956 mSDtfsCounter, 919 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:21,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 2464 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 07:28:21,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2024-11-16 07:28:21,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1355. [2024-11-16 07:28:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1355 states, 1086 states have (on average 1.5976058931860038) internal successors, (1735), 1127 states have internal predecessors, (1735), 204 states have call successors, (204), 56 states have call predecessors, (204), 64 states have return successors, (218), 197 states have call predecessors, (218), 199 states have call successors, (218) [2024-11-16 07:28:21,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1355 states to 1355 states and 2157 transitions. [2024-11-16 07:28:21,896 INFO L78 Accepts]: Start accepts. Automaton has 1355 states and 2157 transitions. Word has length 151 [2024-11-16 07:28:21,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:21,896 INFO L471 AbstractCegarLoop]: Abstraction has 1355 states and 2157 transitions. [2024-11-16 07:28:21,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 07:28:21,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1355 states and 2157 transitions. [2024-11-16 07:28:21,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-16 07:28:21,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:21,902 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 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] [2024-11-16 07:28:21,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-16 07:28:22,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 07:28:22,104 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:22,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:22,104 INFO L85 PathProgramCache]: Analyzing trace with hash 627163084, now seen corresponding path program 1 times [2024-11-16 07:28:22,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:22,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605894396] [2024-11-16 07:28:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:22,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:28:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:28:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 07:28:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 07:28:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-16 07:28:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-16 07:28:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 07:28:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:22,663 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 07:28:22,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:22,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605894396] [2024-11-16 07:28:22,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605894396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:22,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84382454] [2024-11-16 07:28:22,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:22,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:22,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:22,665 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) [2024-11-16 07:28:22,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-16 07:28:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:23,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 07:28:23,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:28:23,199 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:23,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84382454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:23,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:23,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-16 07:28:23,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660867188] [2024-11-16 07:28:23,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:23,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:28:23,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:23,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:28:23,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:28:23,201 INFO L87 Difference]: Start difference. First operand 1355 states and 2157 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 07:28:23,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:23,652 INFO L93 Difference]: Finished difference Result 2422 states and 3928 transitions. [2024-11-16 07:28:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 07:28:23,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 153 [2024-11-16 07:28:23,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:23,662 INFO L225 Difference]: With dead ends: 2422 [2024-11-16 07:28:23,662 INFO L226 Difference]: Without dead ends: 1371 [2024-11-16 07:28:23,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:28:23,667 INFO L432 NwaCegarLoop]: 953 mSDtfsCounter, 917 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:23,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 2461 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 07:28:23,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-11-16 07:28:23,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1371. [2024-11-16 07:28:23,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 1100 states have (on average 1.5990909090909091) internal successors, (1759), 1141 states have internal predecessors, (1759), 204 states have call successors, (204), 58 states have call predecessors, (204), 66 states have return successors, (220), 197 states have call predecessors, (220), 199 states have call successors, (220) [2024-11-16 07:28:23,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 2183 transitions. [2024-11-16 07:28:23,712 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 2183 transitions. Word has length 153 [2024-11-16 07:28:23,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:23,713 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 2183 transitions. [2024-11-16 07:28:23,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 07:28:23,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 2183 transitions. [2024-11-16 07:28:23,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-16 07:28:23,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:23,719 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2024-11-16 07:28:23,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-16 07:28:23,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:23,920 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:23,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:23,920 INFO L85 PathProgramCache]: Analyzing trace with hash 19702448, now seen corresponding path program 1 times [2024-11-16 07:28:23,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:23,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674349097] [2024-11-16 07:28:23,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:23,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:28:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:28:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-16 07:28:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-16 07:28:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-16 07:28:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-16 07:28:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-16 07:28:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,505 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-16 07:28:24,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:24,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674349097] [2024-11-16 07:28:24,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674349097] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:24,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031642813] [2024-11-16 07:28:24,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:24,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:24,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:24,508 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) [2024-11-16 07:28:24,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-16 07:28:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:24,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 07:28:24,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:25,002 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:28:25,002 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:25,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031642813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:25,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:25,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2024-11-16 07:28:25,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995449967] [2024-11-16 07:28:25,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:25,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:28:25,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:25,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:28:25,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:28:25,004 INFO L87 Difference]: Start difference. First operand 1371 states and 2183 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 07:28:25,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:25,423 INFO L93 Difference]: Finished difference Result 2454 states and 3974 transitions. [2024-11-16 07:28:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 07:28:25,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2024-11-16 07:28:25,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:25,432 INFO L225 Difference]: With dead ends: 2454 [2024-11-16 07:28:25,432 INFO L226 Difference]: Without dead ends: 1387 [2024-11-16 07:28:25,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-16 07:28:25,436 INFO L432 NwaCegarLoop]: 950 mSDtfsCounter, 914 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:25,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 2458 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 07:28:25,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-16 07:28:25,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1387. [2024-11-16 07:28:25,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1114 states have (on average 1.6005385996409336) internal successors, (1783), 1155 states have internal predecessors, (1783), 204 states have call successors, (204), 60 states have call predecessors, (204), 68 states have return successors, (222), 197 states have call predecessors, (222), 199 states have call successors, (222) [2024-11-16 07:28:25,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 2209 transitions. [2024-11-16 07:28:25,519 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 2209 transitions. Word has length 155 [2024-11-16 07:28:25,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:25,520 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 2209 transitions. [2024-11-16 07:28:25,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 07:28:25,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 2209 transitions. [2024-11-16 07:28:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-16 07:28:25,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:25,525 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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] [2024-11-16 07:28:25,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:25,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:25,726 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:25,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:25,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1481027090, now seen corresponding path program 1 times [2024-11-16 07:28:25,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:25,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694195432] [2024-11-16 07:28:25,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:25,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:25,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:25,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:25,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:25,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:25,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:25,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:28:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 07:28:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-16 07:28:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-16 07:28:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-16 07:28:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-16 07:28:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-16 07:28:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,250 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-16 07:28:26,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:26,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694195432] [2024-11-16 07:28:26,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694195432] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:26,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267365150] [2024-11-16 07:28:26,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:26,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:26,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:26,252 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) [2024-11-16 07:28:26,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-16 07:28:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:26,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 07:28:26,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:26,738 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:28:26,738 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:26,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267365150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:26,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:26,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-16 07:28:26,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412935428] [2024-11-16 07:28:26,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:26,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:28:26,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:26,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:28:26,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:28:26,740 INFO L87 Difference]: Start difference. First operand 1387 states and 2209 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 07:28:27,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:27,121 INFO L93 Difference]: Finished difference Result 2486 states and 4020 transitions. [2024-11-16 07:28:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 07:28:27,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2024-11-16 07:28:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:27,130 INFO L225 Difference]: With dead ends: 2486 [2024-11-16 07:28:27,130 INFO L226 Difference]: Without dead ends: 1403 [2024-11-16 07:28:27,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:28:27,135 INFO L432 NwaCegarLoop]: 947 mSDtfsCounter, 907 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:27,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 2455 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 07:28:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2024-11-16 07:28:27,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1403. [2024-11-16 07:28:27,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1128 states have (on average 1.6019503546099292) internal successors, (1807), 1169 states have internal predecessors, (1807), 204 states have call successors, (204), 62 states have call predecessors, (204), 70 states have return successors, (224), 197 states have call predecessors, (224), 199 states have call successors, (224) [2024-11-16 07:28:27,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 2235 transitions. [2024-11-16 07:28:27,176 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 2235 transitions. Word has length 157 [2024-11-16 07:28:27,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:27,176 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 2235 transitions. [2024-11-16 07:28:27,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 07:28:27,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 2235 transitions. [2024-11-16 07:28:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 07:28:27,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:27,181 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2024-11-16 07:28:27,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:27,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:27,382 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:27,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:27,382 INFO L85 PathProgramCache]: Analyzing trace with hash -706064176, now seen corresponding path program 1 times [2024-11-16 07:28:27,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:27,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558793106] [2024-11-16 07:28:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:27,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:28:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 07:28:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:28:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:28:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:27,919 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-16 07:28:27,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:27,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558793106] [2024-11-16 07:28:27,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558793106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:27,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090080085] [2024-11-16 07:28:27,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:27,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:27,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:27,921 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) [2024-11-16 07:28:27,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-16 07:28:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:28,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 1895 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 07:28:28,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:28:28,384 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:28,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090080085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:28,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:28,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-16 07:28:28,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235303112] [2024-11-16 07:28:28,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:28,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:28:28,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:28,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:28:28,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:28:28,386 INFO L87 Difference]: Start difference. First operand 1403 states and 2235 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 07:28:29,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:29,367 INFO L93 Difference]: Finished difference Result 4531 states and 7393 transitions. [2024-11-16 07:28:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 07:28:29,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 159 [2024-11-16 07:28:29,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:29,390 INFO L225 Difference]: With dead ends: 4531 [2024-11-16 07:28:29,390 INFO L226 Difference]: Without dead ends: 3432 [2024-11-16 07:28:29,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-16 07:28:29,398 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 1905 mSDsluCounter, 5668 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 7229 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:29,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1912 Valid, 7229 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 07:28:29,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2024-11-16 07:28:29,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3358. [2024-11-16 07:28:29,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3358 states, 2644 states have (on average 1.6077912254160363) internal successors, (4251), 2741 states have internal predecessors, (4251), 543 states have call successors, (543), 162 states have call predecessors, (543), 170 states have return successors, (652), 532 states have call predecessors, (652), 538 states have call successors, (652) [2024-11-16 07:28:29,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 5446 transitions. [2024-11-16 07:28:29,515 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 5446 transitions. Word has length 159 [2024-11-16 07:28:29,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:29,517 INFO L471 AbstractCegarLoop]: Abstraction has 3358 states and 5446 transitions. [2024-11-16 07:28:29,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 07:28:29,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 5446 transitions. [2024-11-16 07:28:29,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 07:28:29,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:29,523 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2024-11-16 07:28:29,544 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:29,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:29,724 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:29,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:29,724 INFO L85 PathProgramCache]: Analyzing trace with hash 319427823, now seen corresponding path program 1 times [2024-11-16 07:28:29,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:29,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600379225] [2024-11-16 07:28:29,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:29,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:28:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 07:28:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:28:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:28:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,402 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-16 07:28:30,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:30,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600379225] [2024-11-16 07:28:30,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600379225] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:30,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663917057] [2024-11-16 07:28:30,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:30,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:30,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:30,404 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) [2024-11-16 07:28:30,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-16 07:28:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:30,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 1894 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:28:30,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-16 07:28:30,806 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:30,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663917057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:30,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:30,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-16 07:28:30,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51649300] [2024-11-16 07:28:30,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:30,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 07:28:30,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 07:28:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:28:30,807 INFO L87 Difference]: Start difference. First operand 3358 states and 5446 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-16 07:28:30,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:30,927 INFO L93 Difference]: Finished difference Result 8762 states and 14348 transitions. [2024-11-16 07:28:30,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 07:28:30,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 159 [2024-11-16 07:28:30,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:30,967 INFO L225 Difference]: With dead ends: 8762 [2024-11-16 07:28:30,967 INFO L226 Difference]: Without dead ends: 5710 [2024-11-16 07:28:30,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-16 07:28:30,983 INFO L432 NwaCegarLoop]: 1079 mSDtfsCounter, 969 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:30,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 1914 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:28:30,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2024-11-16 07:28:31,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5656. [2024-11-16 07:28:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5656 states, 4458 states have (on average 1.610812023328847) internal successors, (7181), 4607 states have internal predecessors, (7181), 907 states have call successors, (907), 280 states have call predecessors, (907), 290 states have return successors, (1092), 896 states have call predecessors, (1092), 902 states have call successors, (1092) [2024-11-16 07:28:31,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 9180 transitions. [2024-11-16 07:28:31,180 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 9180 transitions. Word has length 159 [2024-11-16 07:28:31,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:31,181 INFO L471 AbstractCegarLoop]: Abstraction has 5656 states and 9180 transitions. [2024-11-16 07:28:31,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-16 07:28:31,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 9180 transitions. [2024-11-16 07:28:31,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 07:28:31,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:31,187 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2024-11-16 07:28:31,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-16 07:28:31,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:31,389 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:31,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:31,389 INFO L85 PathProgramCache]: Analyzing trace with hash 2044908720, now seen corresponding path program 1 times [2024-11-16 07:28:31,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:31,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432203426] [2024-11-16 07:28:31,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:31,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:28:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 07:28:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:28:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-16 07:28:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:31,960 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-16 07:28:31,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:31,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432203426] [2024-11-16 07:28:31,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432203426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:31,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651130442] [2024-11-16 07:28:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:31,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:31,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:31,962 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) [2024-11-16 07:28:31,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-16 07:28:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:32,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-16 07:28:32,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:32,561 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-16 07:28:32,561 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:32,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651130442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:32,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:32,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15 [2024-11-16 07:28:32,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151776306] [2024-11-16 07:28:32,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:32,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 07:28:32,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:32,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 07:28:32,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-16 07:28:32,563 INFO L87 Difference]: Start difference. First operand 5656 states and 9180 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-16 07:28:36,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:36,137 INFO L93 Difference]: Finished difference Result 16868 states and 27717 transitions. [2024-11-16 07:28:36,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-16 07:28:36,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) Word has length 159 [2024-11-16 07:28:36,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:36,234 INFO L225 Difference]: With dead ends: 16868 [2024-11-16 07:28:36,234 INFO L226 Difference]: Without dead ends: 12175 [2024-11-16 07:28:36,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=149, Invalid=663, Unknown=0, NotChecked=0, Total=812 [2024-11-16 07:28:36,268 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 4903 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 1365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4991 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 5426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1365 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:36,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4991 Valid, 1943 Invalid, 5426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1365 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 07:28:36,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12175 states. [2024-11-16 07:28:36,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12175 to 11998. [2024-11-16 07:28:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11998 states, 9322 states have (on average 1.5866766788242865) internal successors, (14791), 9653 states have internal predecessors, (14791), 2011 states have call successors, (2011), 640 states have call predecessors, (2011), 664 states have return successors, (2575), 1968 states have call predecessors, (2575), 2006 states have call successors, (2575) [2024-11-16 07:28:36,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11998 states to 11998 states and 19377 transitions. [2024-11-16 07:28:36,866 INFO L78 Accepts]: Start accepts. Automaton has 11998 states and 19377 transitions. Word has length 159 [2024-11-16 07:28:36,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:36,866 INFO L471 AbstractCegarLoop]: Abstraction has 11998 states and 19377 transitions. [2024-11-16 07:28:36,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (17), 7 states have call predecessors, (17), 5 states have call successors, (17) [2024-11-16 07:28:36,867 INFO L276 IsEmpty]: Start isEmpty. Operand 11998 states and 19377 transitions. [2024-11-16 07:28:36,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-16 07:28:36,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:36,871 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2024-11-16 07:28:36,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-16 07:28:37,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:37,072 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:37,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:37,073 INFO L85 PathProgramCache]: Analyzing trace with hash -376050775, now seen corresponding path program 1 times [2024-11-16 07:28:37,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:37,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938002153] [2024-11-16 07:28:37,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:37,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:28:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 07:28:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:28:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:28:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-16 07:28:37,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:37,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938002153] [2024-11-16 07:28:37,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938002153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:37,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697271571] [2024-11-16 07:28:37,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:37,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:37,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:37,587 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) [2024-11-16 07:28:37,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-16 07:28:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:37,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 1895 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 07:28:37,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:38,137 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-16 07:28:38,137 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:38,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697271571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:38,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:38,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-16 07:28:38,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015863860] [2024-11-16 07:28:38,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:38,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:28:38,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:38,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:28:38,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:28:38,139 INFO L87 Difference]: Start difference. First operand 11998 states and 19377 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 07:28:38,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:38,926 INFO L93 Difference]: Finished difference Result 12224 states and 19748 transitions. [2024-11-16 07:28:38,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:28:38,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 160 [2024-11-16 07:28:38,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:39,021 INFO L225 Difference]: With dead ends: 12224 [2024-11-16 07:28:39,021 INFO L226 Difference]: Without dead ends: 12202 [2024-11-16 07:28:39,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:28:39,038 INFO L432 NwaCegarLoop]: 964 mSDtfsCounter, 935 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:39,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 2488 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 07:28:39,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12202 states. [2024-11-16 07:28:39,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12202 to 12022. [2024-11-16 07:28:39,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12022 states, 9346 states have (on average 1.5851701262572224) internal successors, (14815), 9677 states have internal predecessors, (14815), 2011 states have call successors, (2011), 640 states have call predecessors, (2011), 664 states have return successors, (2575), 1968 states have call predecessors, (2575), 2006 states have call successors, (2575) [2024-11-16 07:28:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12022 states to 12022 states and 19401 transitions. [2024-11-16 07:28:39,718 INFO L78 Accepts]: Start accepts. Automaton has 12022 states and 19401 transitions. Word has length 160 [2024-11-16 07:28:39,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:39,719 INFO L471 AbstractCegarLoop]: Abstraction has 12022 states and 19401 transitions. [2024-11-16 07:28:39,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-16 07:28:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 12022 states and 19401 transitions. [2024-11-16 07:28:39,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-16 07:28:39,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:39,724 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2024-11-16 07:28:39,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:39,925 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,SelfDestructingSolverStorable24 [2024-11-16 07:28:39,925 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:39,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:39,926 INFO L85 PathProgramCache]: Analyzing trace with hash 534102087, now seen corresponding path program 1 times [2024-11-16 07:28:39,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:39,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719839089] [2024-11-16 07:28:39,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:39,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:28:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 07:28:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:40,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:28:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:28:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:28:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:40,612 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-16 07:28:40,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:40,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719839089] [2024-11-16 07:28:40,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719839089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:40,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874020849] [2024-11-16 07:28:40,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:40,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:40,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:40,615 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) [2024-11-16 07:28:40,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-16 07:28:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:41,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 1911 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 07:28:41,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:41,070 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-16 07:28:41,071 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:41,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874020849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:41,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:41,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-11-16 07:28:41,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057898422] [2024-11-16 07:28:41,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:41,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 07:28:41,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:41,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 07:28:41,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:28:41,073 INFO L87 Difference]: Start difference. First operand 12022 states and 19401 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-16 07:28:41,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:41,270 INFO L93 Difference]: Finished difference Result 12044 states and 19427 transitions. [2024-11-16 07:28:41,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:28:41,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) Word has length 166 [2024-11-16 07:28:41,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:41,357 INFO L225 Difference]: With dead ends: 12044 [2024-11-16 07:28:41,358 INFO L226 Difference]: Without dead ends: 12022 [2024-11-16 07:28:41,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-16 07:28:41,372 INFO L432 NwaCegarLoop]: 971 mSDtfsCounter, 0 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3880 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:41,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3880 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:28:41,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12022 states. [2024-11-16 07:28:41,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12022 to 12022. [2024-11-16 07:28:41,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12022 states, 9346 states have (on average 1.582816178044083) internal successors, (14793), 9677 states have internal predecessors, (14793), 2011 states have call successors, (2011), 640 states have call predecessors, (2011), 664 states have return successors, (2575), 1968 states have call predecessors, (2575), 2006 states have call successors, (2575) [2024-11-16 07:28:41,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12022 states to 12022 states and 19379 transitions. [2024-11-16 07:28:41,902 INFO L78 Accepts]: Start accepts. Automaton has 12022 states and 19379 transitions. Word has length 166 [2024-11-16 07:28:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:41,903 INFO L471 AbstractCegarLoop]: Abstraction has 12022 states and 19379 transitions. [2024-11-16 07:28:41,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-16 07:28:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 12022 states and 19379 transitions. [2024-11-16 07:28:41,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 07:28:41,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:41,908 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 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] [2024-11-16 07:28:41,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:42,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-16 07:28:42,110 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:42,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:42,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2043362509, now seen corresponding path program 1 times [2024-11-16 07:28:42,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:42,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534613750] [2024-11-16 07:28:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:42,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-16 07:28:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-16 07:28:42,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 07:28:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:28:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:28:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:28:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:28:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:42,827 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-16 07:28:42,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:42,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534613750] [2024-11-16 07:28:42,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534613750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:42,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279637912] [2024-11-16 07:28:42,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:42,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:42,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:42,830 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:28:42,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-16 07:28:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:43,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 1946 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 07:28:43,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:43,339 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-16 07:28:43,340 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:43,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279637912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:43,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:43,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2024-11-16 07:28:43,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637534071] [2024-11-16 07:28:43,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:43,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:28:43,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:43,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:28:43,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:28:43,342 INFO L87 Difference]: Start difference. First operand 12022 states and 19379 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 07:28:43,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:43,854 INFO L93 Difference]: Finished difference Result 24018 states and 38725 transitions. [2024-11-16 07:28:43,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:28:43,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 175 [2024-11-16 07:28:43,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:43,935 INFO L225 Difference]: With dead ends: 24018 [2024-11-16 07:28:43,936 INFO L226 Difference]: Without dead ends: 11988 [2024-11-16 07:28:43,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-16 07:28:43,988 INFO L432 NwaCegarLoop]: 965 mSDtfsCounter, 7 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:43,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2888 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:28:43,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11988 states. [2024-11-16 07:28:44,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11988 to 11988. [2024-11-16 07:28:44,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11988 states, 9316 states have (on average 1.5827608415629026) internal successors, (14745), 9644 states have internal predecessors, (14745), 2010 states have call successors, (2010), 640 states have call predecessors, (2010), 661 states have return successors, (2570), 1967 states have call predecessors, (2570), 2005 states have call successors, (2570) [2024-11-16 07:28:44,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11988 states to 11988 states and 19325 transitions. [2024-11-16 07:28:44,660 INFO L78 Accepts]: Start accepts. Automaton has 11988 states and 19325 transitions. Word has length 175 [2024-11-16 07:28:44,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:44,660 INFO L471 AbstractCegarLoop]: Abstraction has 11988 states and 19325 transitions. [2024-11-16 07:28:44,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-16 07:28:44,660 INFO L276 IsEmpty]: Start isEmpty. Operand 11988 states and 19325 transitions. [2024-11-16 07:28:44,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 07:28:44,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:44,666 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2024-11-16 07:28:44,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-16 07:28:44,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-16 07:28:44,868 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:44,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:44,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1573266522, now seen corresponding path program 1 times [2024-11-16 07:28:44,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:44,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833063265] [2024-11-16 07:28:44,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:44,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 07:28:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 07:28:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 07:28:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:45,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:28:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:28:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:28:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:28:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-16 07:28:45,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:45,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833063265] [2024-11-16 07:28:45,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833063265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:45,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467800937] [2024-11-16 07:28:45,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:45,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:45,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:45,795 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:28:45,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-16 07:28:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:46,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 07:28:46,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:46,308 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:28:46,308 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:46,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467800937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:46,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:46,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 16 [2024-11-16 07:28:46,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383516081] [2024-11-16 07:28:46,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:46,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 07:28:46,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:46,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 07:28:46,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-16 07:28:46,310 INFO L87 Difference]: Start difference. First operand 11988 states and 19325 transitions. Second operand has 7 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 07:28:46,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:46,736 INFO L93 Difference]: Finished difference Result 23960 states and 38640 transitions. [2024-11-16 07:28:46,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 07:28:46,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 177 [2024-11-16 07:28:46,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:46,809 INFO L225 Difference]: With dead ends: 23960 [2024-11-16 07:28:46,809 INFO L226 Difference]: Without dead ends: 12003 [2024-11-16 07:28:46,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2024-11-16 07:28:46,854 INFO L432 NwaCegarLoop]: 983 mSDtfsCounter, 119 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5772 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:46,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5772 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 07:28:46,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12003 states. [2024-11-16 07:28:47,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12003 to 11967. [2024-11-16 07:28:47,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11967 states, 9295 states have (on average 1.5826788596019365) internal successors, (14711), 9623 states have internal predecessors, (14711), 2010 states have call successors, (2010), 640 states have call predecessors, (2010), 661 states have return successors, (2570), 1967 states have call predecessors, (2570), 2005 states have call successors, (2570) [2024-11-16 07:28:47,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11967 states to 11967 states and 19291 transitions. [2024-11-16 07:28:47,430 INFO L78 Accepts]: Start accepts. Automaton has 11967 states and 19291 transitions. Word has length 177 [2024-11-16 07:28:47,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:47,431 INFO L471 AbstractCegarLoop]: Abstraction has 11967 states and 19291 transitions. [2024-11-16 07:28:47,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-16 07:28:47,431 INFO L276 IsEmpty]: Start isEmpty. Operand 11967 states and 19291 transitions. [2024-11-16 07:28:47,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-16 07:28:47,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:47,437 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1] [2024-11-16 07:28:47,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:47,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-16 07:28:47,638 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:47,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:47,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1182508110, now seen corresponding path program 1 times [2024-11-16 07:28:47,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:47,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333412686] [2024-11-16 07:28:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:47,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:47,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:47,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:47,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:47,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-16 07:28:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:47,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:47,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-16 07:28:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 07:28:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:28:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:28:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:28:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:28:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,280 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-16 07:28:48,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:48,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333412686] [2024-11-16 07:28:48,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333412686] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 07:28:48,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736966168] [2024-11-16 07:28:48,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:48,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 07:28:48,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 07:28:48,284 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 07:28:48,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-16 07:28:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:48,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 1955 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 07:28:48,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 07:28:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-16 07:28:48,781 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 07:28:48,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736966168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:48,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 07:28:48,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-16 07:28:48,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455281389] [2024-11-16 07:28:48,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:48,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 07:28:48,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:48,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 07:28:48,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 07:28:48,783 INFO L87 Difference]: Start difference. First operand 11967 states and 19291 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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) [2024-11-16 07:28:49,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 07:28:49,133 INFO L93 Difference]: Finished difference Result 23945 states and 38616 transitions. [2024-11-16 07:28:49,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 07:28:49,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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 [2024-11-16 07:28:49,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 07:28:49,309 INFO L225 Difference]: With dead ends: 23945 [2024-11-16 07:28:49,310 INFO L226 Difference]: Without dead ends: 12009 [2024-11-16 07:28:49,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-16 07:28:49,349 INFO L432 NwaCegarLoop]: 948 mSDtfsCounter, 128 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 07:28:49,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2767 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 07:28:49,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12009 states. [2024-11-16 07:28:49,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12009 to 11967. [2024-11-16 07:28:49,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11967 states, 9295 states have (on average 1.582571274878967) internal successors, (14710), 9623 states have internal predecessors, (14710), 2010 states have call successors, (2010), 640 states have call predecessors, (2010), 661 states have return successors, (2570), 1967 states have call predecessors, (2570), 2005 states have call successors, (2570) [2024-11-16 07:28:49,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11967 states to 11967 states and 19290 transitions. [2024-11-16 07:28:49,825 INFO L78 Accepts]: Start accepts. Automaton has 11967 states and 19290 transitions. Word has length 179 [2024-11-16 07:28:49,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 07:28:49,826 INFO L471 AbstractCegarLoop]: Abstraction has 11967 states and 19290 transitions. [2024-11-16 07:28:49,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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) [2024-11-16 07:28:49,826 INFO L276 IsEmpty]: Start isEmpty. Operand 11967 states and 19290 transitions. [2024-11-16 07:28:49,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-16 07:28:49,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 07:28:49,831 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1] [2024-11-16 07:28:49,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-16 07:28:50,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-16 07:28:50,032 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 07:28:50,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 07:28:50,032 INFO L85 PathProgramCache]: Analyzing trace with hash -2067565261, now seen corresponding path program 1 times [2024-11-16 07:28:50,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 07:28:50,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133896151] [2024-11-16 07:28:50,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 07:28:50,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 07:28:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 07:28:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-16 07:28:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-16 07:28:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:28:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 07:28:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 07:28:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 07:28:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-16 07:28:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-16 07:28:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-16 07:28:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-16 07:28:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-16 07:28:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 07:28:50,744 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-16 07:28:50,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 07:28:50,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133896151] [2024-11-16 07:28:50,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133896151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 07:28:50,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 07:28:50,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 07:28:50,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009034420] [2024-11-16 07:28:50,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 07:28:50,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 07:28:50,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 07:28:50,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 07:28:50,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-16 07:28:50,747 INFO L87 Difference]: Start difference. First operand 11967 states and 19290 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 7 states have internal predecessors, (118), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19)