./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb3dce9b114483214f320874a7aac06c61be45c777f03f63c22a8ddab1e62ece --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 02:30:13,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:30:13,918 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:30:13,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:30:13,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:30:13,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:30:13,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:30:13,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:30:13,945 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:30:13,946 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:30:13,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:30:13,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:30:13,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:30:13,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:30:13,948 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:30:13,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:30:13,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:30:13,949 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:30:13,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:30:13,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:30:13,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:30:13,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:30:13,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:30:13,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:30:13,953 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:30:13,953 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:30:13,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:30:13,953 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:30:13,953 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:30:13,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:30:13,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:30:13,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:30:13,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:30:13,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:30:13,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:30:13,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:30:13,955 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:30:13,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:30:13,955 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:30:13,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:30:13,955 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:30:13,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:30:13,957 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb3dce9b114483214f320874a7aac06c61be45c777f03f63c22a8ddab1e62ece [2024-10-11 02:30:14,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:30:14,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:30:14,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:30:14,175 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:30:14,176 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:30:14,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c [2024-10-11 02:30:15,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:30:15,619 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:30:15,620 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c [2024-10-11 02:30:15,643 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2d89638db/42890647447c4da380298d020ab5c4a1/FLAGab75bfe7c [2024-10-11 02:30:15,657 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/2d89638db/42890647447c4da380298d020ab5c4a1 [2024-10-11 02:30:15,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:30:15,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:30:15,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:30:15,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:30:15,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:30:15,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:15" (1/1) ... [2024-10-11 02:30:15,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2e4f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:15, skipping insertion in model container [2024-10-11 02:30:15,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:15" (1/1) ... [2024-10-11 02:30:15,724 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:30:16,137 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c[58922,58935] [2024-10-11 02:30:16,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:30:16,186 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:30:16,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-10-11 02:30:16,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [716] [2024-10-11 02:30:16,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [754] [2024-10-11 02:30:16,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [875] [2024-10-11 02:30:16,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1230] [2024-10-11 02:30:16,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2746] [2024-10-11 02:30:16,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2837] [2024-10-11 02:30:16,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2846] [2024-10-11 02:30:16,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [2861] [2024-10-11 02:30:16,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2950] [2024-10-11 02:30:16,257 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product21.cil.c[58922,58935] [2024-10-11 02:30:16,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:30:16,295 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:30:16,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16 WrapperNode [2024-10-11 02:30:16,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:30:16,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:30:16,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:30:16,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:30:16,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,373 INFO L138 Inliner]: procedures = 90, calls = 338, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 817 [2024-10-11 02:30:16,373 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:30:16,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:30:16,374 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:30:16,374 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:30:16,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,387 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,421 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-10-11 02:30:16,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:30:16,464 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:30:16,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:30:16,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:30:16,465 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (1/1) ... [2024-10-11 02:30:16,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:30:16,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:16,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 02:30:16,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 02:30:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-10-11 02:30:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-10-11 02:30:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:30:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-10-11 02:30:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-10-11 02:30:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-11 02:30:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-11 02:30:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2024-10-11 02:30:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2024-10-11 02:30:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-11 02:30:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-11 02:30:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-11 02:30:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-11 02:30:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-10-11 02:30:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-10-11 02:30:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-11 02:30:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-11 02:30:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 02:30:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 02:30:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 02:30:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 02:30:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-11 02:30:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-11 02:30:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-11 02:30:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-11 02:30:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-11 02:30:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-11 02:30:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-11 02:30:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-11 02:30:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-11 02:30:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-11 02:30:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-11 02:30:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-11 02:30:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-11 02:30:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-11 02:30:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-11 02:30:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-10-11 02:30:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-11 02:30:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-11 02:30:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-11 02:30:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-11 02:30:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-10-11 02:30:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-10-11 02:30:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:30:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:30:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-11 02:30:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-11 02:30:16,715 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:30:16,717 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:30:17,596 INFO L? ?]: Removed 460 outVars from TransFormulas that were not future-live. [2024-10-11 02:30:17,596 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:30:17,660 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:30:17,662 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 02:30:17,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:17 BoogieIcfgContainer [2024-10-11 02:30:17,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:30:17,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:30:17,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:30:17,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:30:17,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:30:15" (1/3) ... [2024-10-11 02:30:17,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e3f3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:17, skipping insertion in model container [2024-10-11 02:30:17,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:16" (2/3) ... [2024-10-11 02:30:17,668 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e3f3e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:17, skipping insertion in model container [2024-10-11 02:30:17,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:17" (3/3) ... [2024-10-11 02:30:17,670 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product21.cil.c [2024-10-11 02:30:17,681 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:30:17,682 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:30:17,770 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:30:17,775 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;@35760b80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:30:17,775 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:30:17,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 570 states, 443 states have (on average 1.72686230248307) internal successors, (765), 461 states have internal predecessors, (765), 100 states have call successors, (100), 25 states have call predecessors, (100), 25 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2024-10-11 02:30:17,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-11 02:30:17,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:17,807 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:17,808 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:17,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:17,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1069495149, now seen corresponding path program 1 times [2024-10-11 02:30:17,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:17,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613818739] [2024-10-11 02:30:17,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:17,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:30:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:30:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 02:30:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:30:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:30:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:30:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 02:30:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:30:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:30:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,465 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 02:30:18,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:18,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613818739] [2024-10-11 02:30:18,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613818739] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:18,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499094584] [2024-10-11 02:30:18,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:18,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:18,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:18,470 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:18,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 02:30:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:18,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 1361 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 02:30:18,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:18,787 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-11 02:30:18,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:18,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499094584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:18,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:18,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2024-10-11 02:30:18,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300253518] [2024-10-11 02:30:18,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:18,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 02:30:18,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:18,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 02:30:18,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:30:18,831 INFO L87 Difference]: Start difference. First operand has 570 states, 443 states have (on average 1.72686230248307) internal successors, (765), 461 states have internal predecessors, (765), 100 states have call successors, (100), 25 states have call predecessors, (100), 25 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:18,937 INFO L93 Difference]: Finished difference Result 1124 states and 1919 transitions. [2024-10-11 02:30:18,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 02:30:18,942 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2024-10-11 02:30:18,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:18,961 INFO L225 Difference]: With dead ends: 1124 [2024-10-11 02:30:18,961 INFO L226 Difference]: Without dead ends: 564 [2024-10-11 02:30:18,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:30:18,974 INFO L432 NwaCegarLoop]: 937 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:18,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 937 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:30:18,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-10-11 02:30:19,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2024-10-11 02:30:19,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 440 states have (on average 1.7022727272727274) internal successors, (749), 456 states have internal predecessors, (749), 100 states have call successors, (100), 25 states have call predecessors, (100), 23 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-10-11 02:30:19,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 946 transitions. [2024-10-11 02:30:19,066 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 946 transitions. Word has length 103 [2024-10-11 02:30:19,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:19,068 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 946 transitions. [2024-10-11 02:30:19,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 946 transitions. [2024-10-11 02:30:19,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-11 02:30:19,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:19,075 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:19,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 02:30:19,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-11 02:30:19,280 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:19,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:19,281 INFO L85 PathProgramCache]: Analyzing trace with hash -428494387, now seen corresponding path program 1 times [2024-10-11 02:30:19,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:19,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032097320] [2024-10-11 02:30:19,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:19,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:30:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:30:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 02:30:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:30:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:30:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:30:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 02:30:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:30:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:30:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 02:30:19,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:19,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032097320] [2024-10-11 02:30:19,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032097320] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:19,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165322650] [2024-10-11 02:30:19,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:19,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:19,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:19,609 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:19,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 02:30:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:19,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 1355 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:19,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 02:30:19,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:19,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165322650] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:19,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:19,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-11 02:30:19,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482808169] [2024-10-11 02:30:19,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:19,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:30:19,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:19,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:30:19,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:30:19,856 INFO L87 Difference]: Start difference. First operand 564 states and 946 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:19,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:19,962 INFO L93 Difference]: Finished difference Result 1657 states and 2819 transitions. [2024-10-11 02:30:19,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:30:19,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2024-10-11 02:30:19,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:19,968 INFO L225 Difference]: With dead ends: 1657 [2024-10-11 02:30:19,968 INFO L226 Difference]: Without dead ends: 1108 [2024-10-11 02:30:19,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:30:19,972 INFO L432 NwaCegarLoop]: 946 mSDtfsCounter, 942 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:19,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 1847 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:30:19,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-10-11 02:30:20,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1099. [2024-10-11 02:30:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 865 states have (on average 1.7098265895953757) internal successors, (1479), 894 states have internal predecessors, (1479), 188 states have call successors, (188), 47 states have call predecessors, (188), 45 states have return successors, (196), 183 states have call predecessors, (196), 184 states have call successors, (196) [2024-10-11 02:30:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1863 transitions. [2024-10-11 02:30:20,046 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1863 transitions. Word has length 103 [2024-10-11 02:30:20,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:20,047 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1863 transitions. [2024-10-11 02:30:20,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:20,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1863 transitions. [2024-10-11 02:30:20,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-11 02:30:20,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:20,053 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:20,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 02:30:20,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:20,253 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:20,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:20,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1130094261, now seen corresponding path program 1 times [2024-10-11 02:30:20,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:20,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165271236] [2024-10-11 02:30:20,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:20,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:30:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:30:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 02:30:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:30:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:30:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:30:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 02:30:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:30:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:30:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 02:30:20,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:20,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165271236] [2024-10-11 02:30:20,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165271236] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:20,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707650467] [2024-10-11 02:30:20,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:20,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:20,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:20,520 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:20,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 02:30:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:20,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 1356 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:20,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:20,787 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 02:30:20,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:20,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707650467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:20,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:20,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-11 02:30:20,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906181579] [2024-10-11 02:30:20,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:20,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:20,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:20,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:20,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:30:20,789 INFO L87 Difference]: Start difference. First operand 1099 states and 1863 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:20,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:20,928 INFO L93 Difference]: Finished difference Result 2204 states and 3739 transitions. [2024-10-11 02:30:20,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:30:20,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2024-10-11 02:30:20,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:20,933 INFO L225 Difference]: With dead ends: 2204 [2024-10-11 02:30:20,933 INFO L226 Difference]: Without dead ends: 1108 [2024-10-11 02:30:20,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:30:20,939 INFO L432 NwaCegarLoop]: 918 mSDtfsCounter, 17 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:20,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2746 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:20,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-10-11 02:30:20,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1108. [2024-10-11 02:30:20,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1108 states, 873 states have (on average 1.7101947308132874) internal successors, (1493), 902 states have internal predecessors, (1493), 188 states have call successors, (188), 48 states have call predecessors, (188), 46 states have return successors, (196), 183 states have call predecessors, (196), 184 states have call successors, (196) [2024-10-11 02:30:20,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1108 states to 1108 states and 1877 transitions. [2024-10-11 02:30:20,972 INFO L78 Accepts]: Start accepts. Automaton has 1108 states and 1877 transitions. Word has length 103 [2024-10-11 02:30:20,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:20,973 INFO L471 AbstractCegarLoop]: Abstraction has 1108 states and 1877 transitions. [2024-10-11 02:30:20,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:20,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1108 states and 1877 transitions. [2024-10-11 02:30:20,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-11 02:30:20,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:20,976 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:20,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 02:30:21,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:21,178 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:21,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:21,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1006973529, now seen corresponding path program 1 times [2024-10-11 02:30:21,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:21,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557281638] [2024-10-11 02:30:21,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:21,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 02:30:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 02:30:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 02:30:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:30:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:30:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 02:30:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:30:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:30:21,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 02:30:21,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:21,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557281638] [2024-10-11 02:30:21,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557281638] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:21,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58228187] [2024-10-11 02:30:21,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:21,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:21,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:21,558 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:21,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 02:30:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:21,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:21,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:21,832 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:30:21,832 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:21,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58228187] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:21,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:21,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2024-10-11 02:30:21,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964530972] [2024-10-11 02:30:21,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:21,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:21,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:21,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:21,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:30:21,836 INFO L87 Difference]: Start difference. First operand 1108 states and 1877 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:22,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:22,080 INFO L93 Difference]: Finished difference Result 2279 states and 3873 transitions. [2024-10-11 02:30:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:30:22,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 105 [2024-10-11 02:30:22,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:22,086 INFO L225 Difference]: With dead ends: 2279 [2024-10-11 02:30:22,086 INFO L226 Difference]: Without dead ends: 1176 [2024-10-11 02:30:22,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:30:22,093 INFO L432 NwaCegarLoop]: 902 mSDtfsCounter, 121 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 2635 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:22,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 2635 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 02:30:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2024-10-11 02:30:22,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1152. [2024-10-11 02:30:22,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 916 states have (on average 1.720524017467249) internal successors, (1576), 945 states have internal predecessors, (1576), 188 states have call successors, (188), 49 states have call predecessors, (188), 47 states have return successors, (196), 183 states have call predecessors, (196), 184 states have call successors, (196) [2024-10-11 02:30:22,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1960 transitions. [2024-10-11 02:30:22,135 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1960 transitions. Word has length 105 [2024-10-11 02:30:22,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:22,135 INFO L471 AbstractCegarLoop]: Abstraction has 1152 states and 1960 transitions. [2024-10-11 02:30:22,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:22,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1960 transitions. [2024-10-11 02:30:22,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 02:30:22,139 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:22,139 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:22,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 02:30:22,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:22,340 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:22,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:22,340 INFO L85 PathProgramCache]: Analyzing trace with hash -813048253, now seen corresponding path program 1 times [2024-10-11 02:30:22,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:22,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493437019] [2024-10-11 02:30:22,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:22,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 02:30:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:30:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 02:30:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:30:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 02:30:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 02:30:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 02:30:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 02:30:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,670 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 02:30:22,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:22,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493437019] [2024-10-11 02:30:22,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493437019] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:22,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329972066] [2024-10-11 02:30:22,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:22,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:22,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:22,673 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:22,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 02:30:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:22,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:30:22,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:30:22,953 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:22,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329972066] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:22,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:22,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-10-11 02:30:22,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817396538] [2024-10-11 02:30:22,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:22,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:30:22,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:22,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:30:22,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:30:22,955 INFO L87 Difference]: Start difference. First operand 1152 states and 1960 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:23,108 INFO L93 Difference]: Finished difference Result 2332 states and 3965 transitions. [2024-10-11 02:30:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:23,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2024-10-11 02:30:23,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:23,114 INFO L225 Difference]: With dead ends: 2332 [2024-10-11 02:30:23,115 INFO L226 Difference]: Without dead ends: 1185 [2024-10-11 02:30:23,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:30:23,120 INFO L432 NwaCegarLoop]: 918 mSDtfsCounter, 89 mSDsluCounter, 4500 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5418 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:23,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5418 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:23,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2024-10-11 02:30:23,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1164. [2024-10-11 02:30:23,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 925 states have (on average 1.718918918918919) internal successors, (1590), 956 states have internal predecessors, (1590), 189 states have call successors, (189), 49 states have call predecessors, (189), 49 states have return successors, (201), 184 states have call predecessors, (201), 185 states have call successors, (201) [2024-10-11 02:30:23,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1980 transitions. [2024-10-11 02:30:23,151 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1980 transitions. Word has length 107 [2024-10-11 02:30:23,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:23,151 INFO L471 AbstractCegarLoop]: Abstraction has 1164 states and 1980 transitions. [2024-10-11 02:30:23,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:23,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1980 transitions. [2024-10-11 02:30:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-11 02:30:23,154 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:23,155 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:23,169 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 02:30:23,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:23,357 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:23,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:23,357 INFO L85 PathProgramCache]: Analyzing trace with hash -160611478, now seen corresponding path program 1 times [2024-10-11 02:30:23,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:23,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782082328] [2024-10-11 02:30:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:23,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:23,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:30:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:30:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:30:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:30:23,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 02:30:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:30:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:30:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 02:30:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,626 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:30:23,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:23,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782082328] [2024-10-11 02:30:23,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782082328] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:23,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426291322] [2024-10-11 02:30:23,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:23,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:23,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:23,628 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:23,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 02:30:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:23,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 1361 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:30:23,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:23,916 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:30:23,917 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:23,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426291322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:23,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:23,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-10-11 02:30:23,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569547701] [2024-10-11 02:30:23,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:23,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:30:23,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:23,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:30:23,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:30:23,918 INFO L87 Difference]: Start difference. First operand 1164 states and 1980 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:24,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:24,049 INFO L93 Difference]: Finished difference Result 2350 states and 3994 transitions. [2024-10-11 02:30:24,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:24,050 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 108 [2024-10-11 02:30:24,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:24,055 INFO L225 Difference]: With dead ends: 2350 [2024-10-11 02:30:24,056 INFO L226 Difference]: Without dead ends: 1193 [2024-10-11 02:30:24,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:30:24,061 INFO L432 NwaCegarLoop]: 918 mSDtfsCounter, 100 mSDsluCounter, 4488 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5406 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:24,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5406 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:24,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-10-11 02:30:24,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1164. [2024-10-11 02:30:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 925 states have (on average 1.718918918918919) internal successors, (1590), 956 states have internal predecessors, (1590), 189 states have call successors, (189), 49 states have call predecessors, (189), 49 states have return successors, (201), 184 states have call predecessors, (201), 185 states have call successors, (201) [2024-10-11 02:30:24,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 1980 transitions. [2024-10-11 02:30:24,108 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 1980 transitions. Word has length 108 [2024-10-11 02:30:24,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:24,109 INFO L471 AbstractCegarLoop]: Abstraction has 1164 states and 1980 transitions. [2024-10-11 02:30:24,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:24,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 1980 transitions. [2024-10-11 02:30:24,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-11 02:30:24,112 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:24,112 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:24,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 02:30:24,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-11 02:30:24,313 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:24,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:24,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1218816576, now seen corresponding path program 1 times [2024-10-11 02:30:24,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:24,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145254217] [2024-10-11 02:30:24,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:24,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 02:30:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:30:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:30:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:30:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:30:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 02:30:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:30:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:30:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 02:30:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,510 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-10-11 02:30:24,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:24,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145254217] [2024-10-11 02:30:24,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145254217] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:24,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475914892] [2024-10-11 02:30:24,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:24,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:24,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:24,512 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:24,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 02:30:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:24,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 1361 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:24,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 02:30:24,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:24,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475914892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:24,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:24,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-11 02:30:24,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991116479] [2024-10-11 02:30:24,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:24,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:24,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:24,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:24,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:30:24,745 INFO L87 Difference]: Start difference. First operand 1164 states and 1980 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:24,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:24,835 INFO L93 Difference]: Finished difference Result 2338 states and 3974 transitions. [2024-10-11 02:30:24,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:30:24,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-10-11 02:30:24,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:24,841 INFO L225 Difference]: With dead ends: 2338 [2024-10-11 02:30:24,841 INFO L226 Difference]: Without dead ends: 1175 [2024-10-11 02:30:24,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:30:24,846 INFO L432 NwaCegarLoop]: 919 mSDtfsCounter, 12 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:24,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2748 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:24,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2024-10-11 02:30:24,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1173. [2024-10-11 02:30:24,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 933 states have (on average 1.7095391211146838) internal successors, (1595), 964 states have internal predecessors, (1595), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-10-11 02:30:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1984 transitions. [2024-10-11 02:30:24,911 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1984 transitions. Word has length 108 [2024-10-11 02:30:24,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:24,911 INFO L471 AbstractCegarLoop]: Abstraction has 1173 states and 1984 transitions. [2024-10-11 02:30:24,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:24,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1984 transitions. [2024-10-11 02:30:24,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-11 02:30:24,915 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:24,915 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:24,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 02:30:25,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:25,116 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:25,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:25,117 INFO L85 PathProgramCache]: Analyzing trace with hash -486685313, now seen corresponding path program 1 times [2024-10-11 02:30:25,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:25,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110156355] [2024-10-11 02:30:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:25,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:30:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 02:30:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:30:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:30:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:30:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 02:30:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:30:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 02:30:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:30:25,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:25,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110156355] [2024-10-11 02:30:25,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110156355] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:25,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358810328] [2024-10-11 02:30:25,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:25,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:25,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:25,403 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:25,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 02:30:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:25,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 1362 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:30:25,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:25,681 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:30:25,682 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:25,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358810328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:25,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:25,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-10-11 02:30:25,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155873300] [2024-10-11 02:30:25,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:25,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:30:25,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:25,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:30:25,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:30:25,683 INFO L87 Difference]: Start difference. First operand 1173 states and 1984 transitions. Second operand has 7 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:25,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:25,809 INFO L93 Difference]: Finished difference Result 2359 states and 3989 transitions. [2024-10-11 02:30:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:25,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-10-11 02:30:25,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:25,816 INFO L225 Difference]: With dead ends: 2359 [2024-10-11 02:30:25,816 INFO L226 Difference]: Without dead ends: 1204 [2024-10-11 02:30:25,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:30:25,821 INFO L432 NwaCegarLoop]: 918 mSDtfsCounter, 111 mSDsluCounter, 4476 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 5394 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:25,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 5394 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:25,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2024-10-11 02:30:25,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1173. [2024-10-11 02:30:25,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 933 states have (on average 1.7095391211146838) internal successors, (1595), 964 states have internal predecessors, (1595), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-10-11 02:30:25,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1984 transitions. [2024-10-11 02:30:25,861 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1984 transitions. Word has length 109 [2024-10-11 02:30:25,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:25,862 INFO L471 AbstractCegarLoop]: Abstraction has 1173 states and 1984 transitions. [2024-10-11 02:30:25,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:25,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1984 transitions. [2024-10-11 02:30:25,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-11 02:30:25,865 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:25,865 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:25,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-11 02:30:26,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 02:30:26,066 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:26,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:26,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1659098947, now seen corresponding path program 1 times [2024-10-11 02:30:26,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:26,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106779905] [2024-10-11 02:30:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:26,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:30:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 02:30:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:30:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:30:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:30:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 02:30:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:30:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 02:30:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,299 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:30:26,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:26,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106779905] [2024-10-11 02:30:26,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106779905] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:26,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063146289] [2024-10-11 02:30:26,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:26,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:26,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:26,301 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:26,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 02:30:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:26,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:30:26,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:26,588 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:30:26,588 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:26,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063146289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:26,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:26,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-10-11 02:30:26,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682600756] [2024-10-11 02:30:26,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:26,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:30:26,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:26,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:30:26,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:30:26,592 INFO L87 Difference]: Start difference. First operand 1173 states and 1984 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:26,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:26,772 INFO L93 Difference]: Finished difference Result 2361 states and 3992 transitions. [2024-10-11 02:30:26,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:30:26,773 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-10-11 02:30:26,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:26,778 INFO L225 Difference]: With dead ends: 2361 [2024-10-11 02:30:26,779 INFO L226 Difference]: Without dead ends: 1206 [2024-10-11 02:30:26,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:30:26,784 INFO L432 NwaCegarLoop]: 908 mSDtfsCounter, 95 mSDsluCounter, 5354 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6262 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:26,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6262 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:26,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-10-11 02:30:26,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1173. [2024-10-11 02:30:26,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 933 states have (on average 1.7095391211146838) internal successors, (1595), 964 states have internal predecessors, (1595), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-10-11 02:30:26,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1984 transitions. [2024-10-11 02:30:26,828 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1984 transitions. Word has length 109 [2024-10-11 02:30:26,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:26,828 INFO L471 AbstractCegarLoop]: Abstraction has 1173 states and 1984 transitions. [2024-10-11 02:30:26,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:26,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1984 transitions. [2024-10-11 02:30:26,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-11 02:30:26,832 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:26,832 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:30:26,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 02:30:27,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:27,035 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:27,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:27,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1513483238, now seen corresponding path program 1 times [2024-10-11 02:30:27,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:27,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654145250] [2024-10-11 02:30:27,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:27,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-11 02:30:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 02:30:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:30:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:30:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 02:30:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 02:30:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 02:30:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 02:30:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,306 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:30:27,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:27,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654145250] [2024-10-11 02:30:27,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654145250] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:27,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466695244] [2024-10-11 02:30:27,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:27,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:27,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:27,308 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:27,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 02:30:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:27,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 1359 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:30:27,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:27,577 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:30:27,577 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:27,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466695244] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:27,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:27,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-10-11 02:30:27,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536265468] [2024-10-11 02:30:27,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:27,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:30:27,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:27,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:30:27,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:30:27,579 INFO L87 Difference]: Start difference. First operand 1173 states and 1984 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:27,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:27,751 INFO L93 Difference]: Finished difference Result 2361 states and 3992 transitions. [2024-10-11 02:30:27,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:30:27,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-10-11 02:30:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:27,771 INFO L225 Difference]: With dead ends: 2361 [2024-10-11 02:30:27,772 INFO L226 Difference]: Without dead ends: 1206 [2024-10-11 02:30:27,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:30:27,775 INFO L432 NwaCegarLoop]: 908 mSDtfsCounter, 105 mSDsluCounter, 5342 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:27,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 6250 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2024-10-11 02:30:27,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1173. [2024-10-11 02:30:27,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 933 states have (on average 1.7095391211146838) internal successors, (1595), 964 states have internal predecessors, (1595), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-10-11 02:30:27,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1984 transitions. [2024-10-11 02:30:27,804 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1984 transitions. Word has length 110 [2024-10-11 02:30:27,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:27,805 INFO L471 AbstractCegarLoop]: Abstraction has 1173 states and 1984 transitions. [2024-10-11 02:30:27,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:27,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1984 transitions. [2024-10-11 02:30:27,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-11 02:30:27,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:27,808 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:27,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-11 02:30:28,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 02:30:28,009 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:28,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:28,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1008032440, now seen corresponding path program 1 times [2024-10-11 02:30:28,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:28,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540639957] [2024-10-11 02:30:28,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:28,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 02:30:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:30:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 02:30:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:30:28,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 02:30:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 02:30:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 02:30:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,258 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:30:28,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:28,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540639957] [2024-10-11 02:30:28,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540639957] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:28,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25036271] [2024-10-11 02:30:28,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:28,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:28,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:28,260 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:28,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 02:30:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:28,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:30:28,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:30:28,548 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:28,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25036271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:28,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:28,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2024-10-11 02:30:28,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340238080] [2024-10-11 02:30:28,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:28,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:30:28,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:28,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:30:28,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:30:28,550 INFO L87 Difference]: Start difference. First operand 1173 states and 1984 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:28,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:28,760 INFO L93 Difference]: Finished difference Result 2353 states and 3978 transitions. [2024-10-11 02:30:28,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:30:28,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-10-11 02:30:28,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:28,767 INFO L225 Difference]: With dead ends: 2353 [2024-10-11 02:30:28,767 INFO L226 Difference]: Without dead ends: 1198 [2024-10-11 02:30:28,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:30:28,772 INFO L432 NwaCegarLoop]: 907 mSDtfsCounter, 115 mSDsluCounter, 5324 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 6231 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:28,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 6231 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:28,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2024-10-11 02:30:28,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1173. [2024-10-11 02:30:28,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 933 states have (on average 1.7095391211146838) internal successors, (1595), 964 states have internal predecessors, (1595), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-10-11 02:30:28,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1984 transitions. [2024-10-11 02:30:28,810 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1984 transitions. Word has length 111 [2024-10-11 02:30:28,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:28,811 INFO L471 AbstractCegarLoop]: Abstraction has 1173 states and 1984 transitions. [2024-10-11 02:30:28,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:28,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1984 transitions. [2024-10-11 02:30:28,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-11 02:30:28,815 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:28,815 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:28,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-11 02:30:29,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 02:30:29,016 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:29,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:29,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1766035226, now seen corresponding path program 1 times [2024-10-11 02:30:29,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:29,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815879811] [2024-10-11 02:30:29,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:29,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:30:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 02:30:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:30:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 02:30:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:30:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 02:30:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 02:30:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 02:30:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,249 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-11 02:30:29,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:29,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815879811] [2024-10-11 02:30:29,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815879811] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:29,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957460104] [2024-10-11 02:30:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:29,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:29,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:29,251 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:29,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 02:30:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 1363 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:29,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:29,487 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 02:30:29,488 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:29,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957460104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:29,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:29,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-10-11 02:30:29,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023623095] [2024-10-11 02:30:29,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:29,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:29,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:29,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:29,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:30:29,489 INFO L87 Difference]: Start difference. First operand 1173 states and 1984 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:29,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:29,573 INFO L93 Difference]: Finished difference Result 2317 states and 3925 transitions. [2024-10-11 02:30:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:30:29,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-10-11 02:30:29,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:29,579 INFO L225 Difference]: With dead ends: 2317 [2024-10-11 02:30:29,579 INFO L226 Difference]: Without dead ends: 1173 [2024-10-11 02:30:29,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:30:29,583 INFO L432 NwaCegarLoop]: 916 mSDtfsCounter, 20 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:29,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2742 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:29,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2024-10-11 02:30:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1173. [2024-10-11 02:30:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 933 states have (on average 1.7041800643086817) internal successors, (1590), 964 states have internal predecessors, (1590), 189 states have call successors, (189), 50 states have call predecessors, (189), 50 states have return successors, (200), 184 states have call predecessors, (200), 185 states have call successors, (200) [2024-10-11 02:30:29,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1979 transitions. [2024-10-11 02:30:29,609 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1979 transitions. Word has length 111 [2024-10-11 02:30:29,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:29,609 INFO L471 AbstractCegarLoop]: Abstraction has 1173 states and 1979 transitions. [2024-10-11 02:30:29,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:29,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1979 transitions. [2024-10-11 02:30:29,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-11 02:30:29,612 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:29,612 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:29,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-11 02:30:29,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:29,813 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:29,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:29,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1736644033, now seen corresponding path program 1 times [2024-10-11 02:30:29,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:29,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758989937] [2024-10-11 02:30:29,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:29,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:29,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 02:30:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:30:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:30:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 02:30:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:30:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:30:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 02:30:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 02:30:30,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:30,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758989937] [2024-10-11 02:30:30,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758989937] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:30,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598646798] [2024-10-11 02:30:30,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:30,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:30,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:30,074 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:30,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 02:30:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 1364 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:30,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 02:30:30,320 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:30,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598646798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:30,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:30,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2024-10-11 02:30:30,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632949322] [2024-10-11 02:30:30,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:30,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:30,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:30,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:30,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:30:30,321 INFO L87 Difference]: Start difference. First operand 1173 states and 1979 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:30,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:30,488 INFO L93 Difference]: Finished difference Result 2349 states and 3973 transitions. [2024-10-11 02:30:30,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:30:30,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2024-10-11 02:30:30,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:30,496 INFO L225 Difference]: With dead ends: 2349 [2024-10-11 02:30:30,496 INFO L226 Difference]: Without dead ends: 1261 [2024-10-11 02:30:30,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:30:30,501 INFO L432 NwaCegarLoop]: 879 mSDtfsCounter, 169 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:30,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 2610 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:30,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-10-11 02:30:30,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1217. [2024-10-11 02:30:30,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 976 states have (on average 1.714139344262295) internal successors, (1673), 1007 states have internal predecessors, (1673), 189 states have call successors, (189), 51 states have call predecessors, (189), 51 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2024-10-11 02:30:30,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 2061 transitions. [2024-10-11 02:30:30,536 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 2061 transitions. Word has length 112 [2024-10-11 02:30:30,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:30,536 INFO L471 AbstractCegarLoop]: Abstraction has 1217 states and 2061 transitions. [2024-10-11 02:30:30,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:30,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 2061 transitions. [2024-10-11 02:30:30,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-11 02:30:30,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:30,539 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:30,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-11 02:30:30,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:30,740 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:30,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:30,740 INFO L85 PathProgramCache]: Analyzing trace with hash 2000035450, now seen corresponding path program 1 times [2024-10-11 02:30:30,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:30,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051589513] [2024-10-11 02:30:30,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:30,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:30:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 02:30:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 02:30:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 02:30:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:30:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 02:30:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 02:30:30,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 02:30:30,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:30,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051589513] [2024-10-11 02:30:30,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051589513] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:30,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580283802] [2024-10-11 02:30:30,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:30,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:30,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:30,992 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:30,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 02:30:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:30:31,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:30:31,295 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:31,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580283802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:31,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:31,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2024-10-11 02:30:31,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948363906] [2024-10-11 02:30:31,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:31,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:30:31,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:31,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:30:31,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-10-11 02:30:31,296 INFO L87 Difference]: Start difference. First operand 1217 states and 2061 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:31,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:31,420 INFO L93 Difference]: Finished difference Result 2347 states and 3965 transitions. [2024-10-11 02:30:31,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:31,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-10-11 02:30:31,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:31,427 INFO L225 Difference]: With dead ends: 2347 [2024-10-11 02:30:31,427 INFO L226 Difference]: Without dead ends: 1259 [2024-10-11 02:30:31,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2024-10-11 02:30:31,434 INFO L432 NwaCegarLoop]: 918 mSDtfsCounter, 89 mSDsluCounter, 4501 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5419 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:31,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5419 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:31,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2024-10-11 02:30:31,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1229. [2024-10-11 02:30:31,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 985 states have (on average 1.7126903553299493) internal successors, (1687), 1018 states have internal predecessors, (1687), 190 states have call successors, (190), 51 states have call predecessors, (190), 53 states have return successors, (202), 185 states have call predecessors, (202), 186 states have call successors, (202) [2024-10-11 02:30:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 2079 transitions. [2024-10-11 02:30:31,470 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 2079 transitions. Word has length 113 [2024-10-11 02:30:31,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:31,470 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 2079 transitions. [2024-10-11 02:30:31,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:31,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 2079 transitions. [2024-10-11 02:30:31,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-11 02:30:31,473 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:31,473 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:31,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-11 02:30:31,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 02:30:31,674 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:31,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:31,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1050717819, now seen corresponding path program 1 times [2024-10-11 02:30:31,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:31,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763527812] [2024-10-11 02:30:31,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:31,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:30:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:30:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 02:30:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:30:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:30:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:30:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 02:30:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 02:30:31,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:31,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763527812] [2024-10-11 02:30:31,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763527812] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:31,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970062787] [2024-10-11 02:30:31,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:31,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:31,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:31,908 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:31,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 02:30:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 02:30:32,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:32,190 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:30:32,190 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:32,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970062787] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:32,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:32,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-10-11 02:30:32,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055764651] [2024-10-11 02:30:32,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:32,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:30:32,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:32,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:30:32,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:30:32,192 INFO L87 Difference]: Start difference. First operand 1229 states and 2079 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:32,320 INFO L93 Difference]: Finished difference Result 2355 states and 3978 transitions. [2024-10-11 02:30:32,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:32,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-10-11 02:30:32,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:32,326 INFO L225 Difference]: With dead ends: 2355 [2024-10-11 02:30:32,326 INFO L226 Difference]: Without dead ends: 1267 [2024-10-11 02:30:32,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:30:32,349 INFO L432 NwaCegarLoop]: 919 mSDtfsCounter, 100 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5413 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:32,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5413 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:32,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-10-11 02:30:32,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1229. [2024-10-11 02:30:32,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 985 states have (on average 1.7126903553299493) internal successors, (1687), 1018 states have internal predecessors, (1687), 190 states have call successors, (190), 51 states have call predecessors, (190), 53 states have return successors, (202), 185 states have call predecessors, (202), 186 states have call successors, (202) [2024-10-11 02:30:32,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 2079 transitions. [2024-10-11 02:30:32,375 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 2079 transitions. Word has length 114 [2024-10-11 02:30:32,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:32,375 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 2079 transitions. [2024-10-11 02:30:32,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:32,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 2079 transitions. [2024-10-11 02:30:32,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-11 02:30:32,378 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:32,378 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:32,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-11 02:30:32,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-11 02:30:32,581 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:32,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:32,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1948668411, now seen corresponding path program 1 times [2024-10-11 02:30:32,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:32,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944532845] [2024-10-11 02:30:32,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:32,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:30:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:30:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 02:30:32,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:30:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:30:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:30:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 02:30:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 02:30:32,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:32,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944532845] [2024-10-11 02:30:32,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944532845] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:32,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430037879] [2024-10-11 02:30:32,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:32,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:32,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:32,827 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:32,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-11 02:30:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 1362 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:30:33,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:30:33,126 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:33,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430037879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:33,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:33,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-10-11 02:30:33,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436702892] [2024-10-11 02:30:33,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:33,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:30:33,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:33,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:30:33,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:30:33,127 INFO L87 Difference]: Start difference. First operand 1229 states and 2079 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:33,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:33,292 INFO L93 Difference]: Finished difference Result 2357 states and 3980 transitions. [2024-10-11 02:30:33,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:30:33,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-10-11 02:30:33,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:33,299 INFO L225 Difference]: With dead ends: 2357 [2024-10-11 02:30:33,299 INFO L226 Difference]: Without dead ends: 1269 [2024-10-11 02:30:33,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-10-11 02:30:33,302 INFO L432 NwaCegarLoop]: 909 mSDtfsCounter, 96 mSDsluCounter, 5361 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 6270 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:33,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 6270 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:33,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-10-11 02:30:33,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1229. [2024-10-11 02:30:33,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 985 states have (on average 1.7126903553299493) internal successors, (1687), 1018 states have internal predecessors, (1687), 190 states have call successors, (190), 51 states have call predecessors, (190), 53 states have return successors, (202), 185 states have call predecessors, (202), 186 states have call successors, (202) [2024-10-11 02:30:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 2079 transitions. [2024-10-11 02:30:33,335 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 2079 transitions. Word has length 114 [2024-10-11 02:30:33,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:33,335 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 2079 transitions. [2024-10-11 02:30:33,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:33,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 2079 transitions. [2024-10-11 02:30:33,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-11 02:30:33,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:33,339 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:33,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-11 02:30:33,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 02:30:33,540 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:33,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:33,540 INFO L85 PathProgramCache]: Analyzing trace with hash -578634277, now seen corresponding path program 1 times [2024-10-11 02:30:33,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:33,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419914783] [2024-10-11 02:30:33,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:33,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 02:30:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:30:33,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:30:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 02:30:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:30:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:30:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:30:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 02:30:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-11 02:30:33,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:33,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419914783] [2024-10-11 02:30:33,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419914783] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:33,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979509809] [2024-10-11 02:30:33,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:33,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:33,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:33,774 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:33,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-11 02:30:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:30:34,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:34,029 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 02:30:34,029 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:34,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979509809] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:34,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:34,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-10-11 02:30:34,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588092589] [2024-10-11 02:30:34,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:34,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:34,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:34,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:34,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:30:34,030 INFO L87 Difference]: Start difference. First operand 1229 states and 2079 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:34,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:34,119 INFO L93 Difference]: Finished difference Result 2389 states and 4044 transitions. [2024-10-11 02:30:34,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 02:30:34,120 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2024-10-11 02:30:34,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:34,125 INFO L225 Difference]: With dead ends: 2389 [2024-10-11 02:30:34,125 INFO L226 Difference]: Without dead ends: 1229 [2024-10-11 02:30:34,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:30:34,128 INFO L432 NwaCegarLoop]: 920 mSDtfsCounter, 2 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:34,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2751 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-10-11 02:30:34,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2024-10-11 02:30:34,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 985 states have (on average 1.7096446700507615) internal successors, (1684), 1018 states have internal predecessors, (1684), 190 states have call successors, (190), 51 states have call predecessors, (190), 53 states have return successors, (202), 185 states have call predecessors, (202), 186 states have call successors, (202) [2024-10-11 02:30:34,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 2076 transitions. [2024-10-11 02:30:34,153 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 2076 transitions. Word has length 114 [2024-10-11 02:30:34,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:34,153 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 2076 transitions. [2024-10-11 02:30:34,153 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, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:34,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 2076 transitions. [2024-10-11 02:30:34,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-11 02:30:34,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:34,156 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:30:34,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-11 02:30:34,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 02:30:34,357 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:34,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:34,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1436783228, now seen corresponding path program 1 times [2024-10-11 02:30:34,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:34,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683739537] [2024-10-11 02:30:34,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:34,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:30:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:30:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 02:30:34,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 02:30:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 02:30:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 02:30:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 02:30:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,592 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 02:30:34,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:34,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683739537] [2024-10-11 02:30:34,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683739537] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:34,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606463913] [2024-10-11 02:30:34,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:34,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:34,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:34,594 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:34,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-11 02:30:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:34,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 1363 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 02:30:34,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:34,906 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-11 02:30:34,907 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:34,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606463913] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:34,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:34,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-10-11 02:30:34,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806533457] [2024-10-11 02:30:34,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:34,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:30:34,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:34,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:30:34,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:30:34,908 INFO L87 Difference]: Start difference. First operand 1229 states and 2076 transitions. Second operand has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:35,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:35,097 INFO L93 Difference]: Finished difference Result 2349 states and 3964 transitions. [2024-10-11 02:30:35,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:30:35,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2024-10-11 02:30:35,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:35,103 INFO L225 Difference]: With dead ends: 2349 [2024-10-11 02:30:35,103 INFO L226 Difference]: Without dead ends: 1261 [2024-10-11 02:30:35,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2024-10-11 02:30:35,106 INFO L432 NwaCegarLoop]: 906 mSDtfsCounter, 106 mSDsluCounter, 5334 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6240 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:35,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6240 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:35,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-10-11 02:30:35,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1229. [2024-10-11 02:30:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 985 states have (on average 1.7096446700507615) internal successors, (1684), 1018 states have internal predecessors, (1684), 190 states have call successors, (190), 51 states have call predecessors, (190), 53 states have return successors, (202), 185 states have call predecessors, (202), 186 states have call successors, (202) [2024-10-11 02:30:35,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 2076 transitions. [2024-10-11 02:30:35,136 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 2076 transitions. Word has length 115 [2024-10-11 02:30:35,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:35,136 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 2076 transitions. [2024-10-11 02:30:35,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:35,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 2076 transitions. [2024-10-11 02:30:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-11 02:30:35,139 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:35,139 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:30:35,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-11 02:30:35,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 02:30:35,340 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:35,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:35,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1471037462, now seen corresponding path program 1 times [2024-10-11 02:30:35,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:35,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749804390] [2024-10-11 02:30:35,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:35,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:30:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-11 02:30:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:30:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:30:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 02:30:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 02:30:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 02:30:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 02:30:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 02:30:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 02:30:35,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:35,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749804390] [2024-10-11 02:30:35,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749804390] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:35,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452182023] [2024-10-11 02:30:35,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:35,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:35,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:35,580 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:35,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-11 02:30:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:35,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 1364 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 02:30:35,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:35,797 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-11 02:30:35,797 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:35,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452182023] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:35,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:35,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 11 [2024-10-11 02:30:35,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937954100] [2024-10-11 02:30:35,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:35,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:30:35,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:35,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:30:35,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:30:35,799 INFO L87 Difference]: Start difference. First operand 1229 states and 2076 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:35,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:35,888 INFO L93 Difference]: Finished difference Result 2440 states and 4133 transitions. [2024-10-11 02:30:35,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:30:35,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-10-11 02:30:35,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:35,895 INFO L225 Difference]: With dead ends: 2440 [2024-10-11 02:30:35,895 INFO L226 Difference]: Without dead ends: 1195 [2024-10-11 02:30:35,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:30:35,898 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 7 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:35,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2743 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:35,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2024-10-11 02:30:35,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1195. [2024-10-11 02:30:35,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 954 states have (on average 1.6960167714884695) internal successors, (1618), 985 states have internal predecessors, (1618), 189 states have call successors, (189), 51 states have call predecessors, (189), 51 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2024-10-11 02:30:35,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 2006 transitions. [2024-10-11 02:30:35,924 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 2006 transitions. Word has length 116 [2024-10-11 02:30:35,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:35,924 INFO L471 AbstractCegarLoop]: Abstraction has 1195 states and 2006 transitions. [2024-10-11 02:30:35,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:35,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 2006 transitions. [2024-10-11 02:30:35,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-11 02:30:35,927 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:35,927 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:35,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-11 02:30:36,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:36,127 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:36,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:36,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1695159395, now seen corresponding path program 1 times [2024-10-11 02:30:36,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:36,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050920311] [2024-10-11 02:30:36,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:36,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 02:30:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:30:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:30:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:30:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 02:30:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:30:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 02:30:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 02:30:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,380 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-11 02:30:36,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:36,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050920311] [2024-10-11 02:30:36,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050920311] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:30:36,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647908591] [2024-10-11 02:30:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:36,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:36,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:30:36,382 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:30:36,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-11 02:30:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:36,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 1362 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 02:30:36,613 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:30:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 02:30:36,648 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:30:36,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647908591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:36,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:30:36,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2024-10-11 02:30:36,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485437372] [2024-10-11 02:30:36,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:36,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:30:36,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:36,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:30:36,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:30:36,649 INFO L87 Difference]: Start difference. First operand 1195 states and 2006 transitions. Second operand has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:36,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:36,758 INFO L93 Difference]: Finished difference Result 2396 states and 4020 transitions. [2024-10-11 02:30:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:36,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 117 [2024-10-11 02:30:36,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:36,763 INFO L225 Difference]: With dead ends: 2396 [2024-10-11 02:30:36,763 INFO L226 Difference]: Without dead ends: 1214 [2024-10-11 02:30:36,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:30:36,766 INFO L432 NwaCegarLoop]: 925 mSDtfsCounter, 122 mSDsluCounter, 4490 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 5415 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:36,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 5415 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:30:36,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-10-11 02:30:36,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1188. [2024-10-11 02:30:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 947 states have (on average 1.6916578669482576) internal successors, (1602), 978 states have internal predecessors, (1602), 189 states have call successors, (189), 51 states have call predecessors, (189), 51 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2024-10-11 02:30:36,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1990 transitions. [2024-10-11 02:30:36,791 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1990 transitions. Word has length 117 [2024-10-11 02:30:36,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:36,791 INFO L471 AbstractCegarLoop]: Abstraction has 1188 states and 1990 transitions. [2024-10-11 02:30:36,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:36,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1990 transitions. [2024-10-11 02:30:36,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-11 02:30:36,794 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:36,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:36,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-11 02:30:36,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:30:36,995 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:36,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:36,996 INFO L85 PathProgramCache]: Analyzing trace with hash 26278668, now seen corresponding path program 1 times [2024-10-11 02:30:36,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:36,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553031115] [2024-10-11 02:30:36,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:36,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:37,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:30:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 02:30:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:30:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:30:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:30:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:30:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 02:30:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 02:30:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:37,232 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 02:30:37,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:37,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553031115] [2024-10-11 02:30:37,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553031115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:37,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:30:37,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:30:37,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661978540] [2024-10-11 02:30:37,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:37,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:30:37,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:37,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:30:37,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:30:37,233 INFO L87 Difference]: Start difference. First operand 1188 states and 1990 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:40,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:40,929 INFO L93 Difference]: Finished difference Result 2746 states and 4644 transitions. [2024-10-11 02:30:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 02:30:40,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 118 [2024-10-11 02:30:40,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:40,937 INFO L225 Difference]: With dead ends: 2746 [2024-10-11 02:30:40,937 INFO L226 Difference]: Without dead ends: 1654 [2024-10-11 02:30:40,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-10-11 02:30:40,940 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 1488 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 5072 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 5477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 5072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:40,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 2493 Invalid, 5477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [405 Valid, 5072 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-11 02:30:40,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2024-10-11 02:30:41,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1248. [2024-10-11 02:30:41,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1248 states, 993 states have (on average 1.6827794561933536) internal successors, (1671), 1024 states have internal predecessors, (1671), 201 states have call successors, (201), 51 states have call predecessors, (201), 53 states have return successors, (220), 196 states have call predecessors, (220), 197 states have call successors, (220) [2024-10-11 02:30:41,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 2092 transitions. [2024-10-11 02:30:41,126 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 2092 transitions. Word has length 118 [2024-10-11 02:30:41,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:41,126 INFO L471 AbstractCegarLoop]: Abstraction has 1248 states and 2092 transitions. [2024-10-11 02:30:41,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:30:41,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 2092 transitions. [2024-10-11 02:30:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-11 02:30:41,130 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:41,130 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:30:41,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 02:30:41,130 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:41,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:41,130 INFO L85 PathProgramCache]: Analyzing trace with hash 123181112, now seen corresponding path program 1 times [2024-10-11 02:30:41,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:41,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66523581] [2024-10-11 02:30:41,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:41,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:30:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-11 02:30:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 02:30:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:30:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:30:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:30:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:30:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 02:30:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 02:30:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:41,343 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 02:30:41,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:41,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66523581] [2024-10-11 02:30:41,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66523581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:41,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:30:41,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:30:41,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040468125] [2024-10-11 02:30:41,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:41,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:30:41,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:41,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:30:41,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:30:41,344 INFO L87 Difference]: Start difference. First operand 1248 states and 2092 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:44,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:44,049 INFO L93 Difference]: Finished difference Result 2858 states and 4823 transitions. [2024-10-11 02:30:44,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:30:44,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2024-10-11 02:30:44,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:44,056 INFO L225 Difference]: With dead ends: 2858 [2024-10-11 02:30:44,056 INFO L226 Difference]: Without dead ends: 1615 [2024-10-11 02:30:44,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:30:44,059 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 1452 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 2643 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 3044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 2643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:44,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1266 Invalid, 3044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 2643 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 02:30:44,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2024-10-11 02:30:44,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1221. [2024-10-11 02:30:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 969 states have (on average 1.6780185758513932) internal successors, (1626), 998 states have internal predecessors, (1626), 200 states have call successors, (200), 51 states have call predecessors, (200), 51 states have return successors, (217), 195 states have call predecessors, (217), 196 states have call successors, (217) [2024-10-11 02:30:44,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 2043 transitions. [2024-10-11 02:30:44,216 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 2043 transitions. Word has length 118 [2024-10-11 02:30:44,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:44,216 INFO L471 AbstractCegarLoop]: Abstraction has 1221 states and 2043 transitions. [2024-10-11 02:30:44,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:30:44,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 2043 transitions. [2024-10-11 02:30:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-11 02:30:44,218 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:44,219 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:44,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-11 02:30:44,219 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:44,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:44,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1357290559, now seen corresponding path program 1 times [2024-10-11 02:30:44,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:44,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670348085] [2024-10-11 02:30:44,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:44,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:30:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:30:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:30:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:30:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 02:30:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 02:30:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 02:30:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 02:30:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 02:30:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:44,418 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-11 02:30:44,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:44,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670348085] [2024-10-11 02:30:44,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670348085] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:44,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:30:44,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:30:44,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539390988] [2024-10-11 02:30:44,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:44,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:30:44,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:44,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:30:44,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:30:44,420 INFO L87 Difference]: Start difference. First operand 1221 states and 2043 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:30:49,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:49,239 INFO L93 Difference]: Finished difference Result 4130 states and 7210 transitions. [2024-10-11 02:30:49,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:30:49,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 119 [2024-10-11 02:30:49,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:49,251 INFO L225 Difference]: With dead ends: 4130 [2024-10-11 02:30:49,251 INFO L226 Difference]: Without dead ends: 2990 [2024-10-11 02:30:49,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:30:49,256 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 4342 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 3951 mSolverCounterSat, 1331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4352 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 5282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1331 IncrementalHoareTripleChecker+Valid, 3951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:49,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4352 Valid, 1421 Invalid, 5282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1331 Valid, 3951 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-11 02:30:49,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2024-10-11 02:30:49,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2316. [2024-10-11 02:30:49,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2316 states, 1835 states have (on average 1.673024523160763) internal successors, (3070), 1891 states have internal predecessors, (3070), 383 states have call successors, (383), 96 states have call predecessors, (383), 97 states have return successors, (443), 376 states have call predecessors, (443), 377 states have call successors, (443) [2024-10-11 02:30:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3896 transitions. [2024-10-11 02:30:49,547 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 3896 transitions. Word has length 119 [2024-10-11 02:30:49,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:49,548 INFO L471 AbstractCegarLoop]: Abstraction has 2316 states and 3896 transitions. [2024-10-11 02:30:49,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:30:49,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 3896 transitions. [2024-10-11 02:30:49,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-11 02:30:49,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:49,550 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:49,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 02:30:49,550 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:49,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:49,551 INFO L85 PathProgramCache]: Analyzing trace with hash -701163758, now seen corresponding path program 1 times [2024-10-11 02:30:49,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:49,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937616116] [2024-10-11 02:30:49,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:49,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:30:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:30:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:30:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:30:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:30:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 02:30:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 02:30:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 02:30:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 02:30:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-11 02:30:49,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:49,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937616116] [2024-10-11 02:30:49,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937616116] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:49,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:30:49,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:30:49,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772474583] [2024-10-11 02:30:49,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:49,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:30:49,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:49,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:30:49,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:30:49,757 INFO L87 Difference]: Start difference. First operand 2316 states and 3896 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:30:55,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:30:55,020 INFO L93 Difference]: Finished difference Result 7993 states and 14212 transitions. [2024-10-11 02:30:55,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:30:55,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 120 [2024-10-11 02:30:55,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:30:55,044 INFO L225 Difference]: With dead ends: 7993 [2024-10-11 02:30:55,044 INFO L226 Difference]: Without dead ends: 5758 [2024-10-11 02:30:55,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:30:55,055 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 4340 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 4007 mSolverCounterSat, 1295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4351 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 5302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1295 IncrementalHoareTripleChecker+Valid, 4007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-10-11 02:30:55,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4351 Valid, 1517 Invalid, 5302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1295 Valid, 4007 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-10-11 02:30:55,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2024-10-11 02:30:55,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 4516. [2024-10-11 02:30:55,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 3575 states have (on average 1.666013986013986) internal successors, (5956), 3685 states have internal predecessors, (5956), 751 states have call successors, (751), 186 states have call predecessors, (751), 189 states have return successors, (944), 740 states have call predecessors, (944), 741 states have call successors, (944) [2024-10-11 02:30:55,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 7651 transitions. [2024-10-11 02:30:55,749 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 7651 transitions. Word has length 120 [2024-10-11 02:30:55,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:30:55,749 INFO L471 AbstractCegarLoop]: Abstraction has 4516 states and 7651 transitions. [2024-10-11 02:30:55,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:30:55,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 7651 transitions. [2024-10-11 02:30:55,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-11 02:30:55,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:30:55,752 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:30:55,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 02:30:55,752 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:30:55,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:30:55,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1874866202, now seen corresponding path program 1 times [2024-10-11 02:30:55,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:30:55,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382447554] [2024-10-11 02:30:55,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:30:55,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:30:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:30:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:30:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:30:55,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:30:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:30:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:30:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:30:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-11 02:30:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 02:30:55,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:30:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 02:30:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 02:30:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:30:55,951 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-11 02:30:55,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:30:55,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382447554] [2024-10-11 02:30:55,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382447554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:30:55,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:30:55,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:30:55,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466436196] [2024-10-11 02:30:55,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:30:55,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:30:55,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:30:55,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:30:55,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:30:55,952 INFO L87 Difference]: Start difference. First operand 4516 states and 7651 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:31:02,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:02,290 INFO L93 Difference]: Finished difference Result 15763 states and 28913 transitions. [2024-10-11 02:31:02,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:31:02,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 121 [2024-10-11 02:31:02,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:02,335 INFO L225 Difference]: With dead ends: 15763 [2024-10-11 02:31:02,335 INFO L226 Difference]: Without dead ends: 11328 [2024-10-11 02:31:02,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:31:02,357 INFO L432 NwaCegarLoop]: 775 mSDtfsCounter, 4382 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 4015 mSolverCounterSat, 1308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4394 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 5323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1308 IncrementalHoareTripleChecker+Valid, 4015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:02,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4394 Valid, 1534 Invalid, 5323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1308 Valid, 4015 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-10-11 02:31:02,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11328 states. [2024-10-11 02:31:03,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11328 to 8926. [2024-10-11 02:31:03,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8926 states, 7063 states have (on average 1.6579357213648591) internal successors, (11710), 7281 states have internal predecessors, (11710), 1489 states have call successors, (1489), 366 states have call predecessors, (1489), 373 states have return successors, (2091), 1470 states have call predecessors, (2091), 1471 states have call successors, (2091) [2024-10-11 02:31:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8926 states to 8926 states and 15290 transitions. [2024-10-11 02:31:03,583 INFO L78 Accepts]: Start accepts. Automaton has 8926 states and 15290 transitions. Word has length 121 [2024-10-11 02:31:03,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:03,583 INFO L471 AbstractCegarLoop]: Abstraction has 8926 states and 15290 transitions. [2024-10-11 02:31:03,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:31:03,584 INFO L276 IsEmpty]: Start isEmpty. Operand 8926 states and 15290 transitions. [2024-10-11 02:31:03,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-11 02:31:03,586 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:03,586 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:03,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-11 02:31:03,587 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:03,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:03,587 INFO L85 PathProgramCache]: Analyzing trace with hash 356266903, now seen corresponding path program 1 times [2024-10-11 02:31:03,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:03,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640240871] [2024-10-11 02:31:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:03,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:31:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:31:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:31:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:31:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:31:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:31:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 02:31:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 02:31:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 02:31:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-11 02:31:03,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:03,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640240871] [2024-10-11 02:31:03,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640240871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:03,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:31:03,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:31:03,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036285246] [2024-10-11 02:31:03,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:03,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:31:03,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:03,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:31:03,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:31:03,793 INFO L87 Difference]: Start difference. First operand 8926 states and 15290 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:31:13,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:13,010 INFO L93 Difference]: Finished difference Result 31347 states and 60460 transitions. [2024-10-11 02:31:13,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:31:13,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 122 [2024-10-11 02:31:13,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:13,098 INFO L225 Difference]: With dead ends: 31347 [2024-10-11 02:31:13,098 INFO L226 Difference]: Without dead ends: 22502 [2024-10-11 02:31:13,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:31:13,153 INFO L432 NwaCegarLoop]: 795 mSDtfsCounter, 4407 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 4034 mSolverCounterSat, 1321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4420 SdHoareTripleChecker+Valid, 1582 SdHoareTripleChecker+Invalid, 5355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1321 IncrementalHoareTripleChecker+Valid, 4034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:13,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4420 Valid, 1582 Invalid, 5355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1321 Valid, 4034 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-10-11 02:31:13,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22502 states. [2024-10-11 02:31:15,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22502 to 17756. [2024-10-11 02:31:15,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17756 states, 14047 states have (on average 1.6493201395315726) internal successors, (23168), 14481 states have internal predecessors, (23168), 2967 states have call successors, (2967), 726 states have call predecessors, (2967), 741 states have return successors, (4834), 2932 states have call predecessors, (4834), 2933 states have call successors, (4834) [2024-10-11 02:31:15,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17756 states to 17756 states and 30969 transitions. [2024-10-11 02:31:15,748 INFO L78 Accepts]: Start accepts. Automaton has 17756 states and 30969 transitions. Word has length 122 [2024-10-11 02:31:15,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:15,748 INFO L471 AbstractCegarLoop]: Abstraction has 17756 states and 30969 transitions. [2024-10-11 02:31:15,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:31:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 17756 states and 30969 transitions. [2024-10-11 02:31:15,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-11 02:31:15,751 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:15,751 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:15,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-11 02:31:15,752 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:15,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:15,752 INFO L85 PathProgramCache]: Analyzing trace with hash 763119627, now seen corresponding path program 1 times [2024-10-11 02:31:15,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:15,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299695933] [2024-10-11 02:31:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:15,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:31:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:31:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:31:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:31:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:31:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:31:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 02:31:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 02:31:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:15,954 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-11 02:31:15,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:15,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299695933] [2024-10-11 02:31:15,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299695933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:15,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:31:15,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:31:15,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17073151] [2024-10-11 02:31:15,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:15,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:31:15,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:15,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:31:15,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:31:15,957 INFO L87 Difference]: Start difference. First operand 17756 states and 30969 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:31:30,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:31:30,515 INFO L93 Difference]: Finished difference Result 62559 states and 130475 transitions. [2024-10-11 02:31:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:31:30,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 123 [2024-10-11 02:31:30,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:31:30,774 INFO L225 Difference]: With dead ends: 62559 [2024-10-11 02:31:30,774 INFO L226 Difference]: Without dead ends: 44884 [2024-10-11 02:31:31,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:31:31,154 INFO L432 NwaCegarLoop]: 808 mSDtfsCounter, 4445 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 4043 mSolverCounterSat, 1332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4459 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 5375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1332 IncrementalHoareTripleChecker+Valid, 4043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-10-11 02:31:31,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4459 Valid, 1618 Invalid, 5375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1332 Valid, 4043 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-10-11 02:31:31,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44884 states. [2024-10-11 02:31:36,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44884 to 35426. [2024-10-11 02:31:36,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35426 states, 28023 states have (on average 1.6404382114691503) internal successors, (45970), 28889 states have internal predecessors, (45970), 5925 states have call successors, (5925), 1446 states have call predecessors, (5925), 1477 states have return successors, (11741), 5858 states have call predecessors, (11741), 5859 states have call successors, (11741) [2024-10-11 02:31:37,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35426 states to 35426 states and 63636 transitions. [2024-10-11 02:31:37,455 INFO L78 Accepts]: Start accepts. Automaton has 35426 states and 63636 transitions. Word has length 123 [2024-10-11 02:31:37,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:31:37,456 INFO L471 AbstractCegarLoop]: Abstraction has 35426 states and 63636 transitions. [2024-10-11 02:31:37,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 4 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:31:37,456 INFO L276 IsEmpty]: Start isEmpty. Operand 35426 states and 63636 transitions. [2024-10-11 02:31:37,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-11 02:31:37,459 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:31:37,459 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:31:37,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-11 02:31:37,459 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:31:37,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:31:37,459 INFO L85 PathProgramCache]: Analyzing trace with hash 747600909, now seen corresponding path program 1 times [2024-10-11 02:31:37,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:31:37,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160583175] [2024-10-11 02:31:37,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:31:37,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:31:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:31:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:31:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:31:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:31:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:31:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:31:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:31:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:31:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:31:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:31:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 02:31:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 02:31:37,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:31:37,754 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-10-11 02:31:37,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:31:37,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160583175] [2024-10-11 02:31:37,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160583175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:31:37,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:31:37,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 02:31:37,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123084101] [2024-10-11 02:31:37,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:31:37,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 02:31:37,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:31:37,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 02:31:37,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:31:37,756 INFO L87 Difference]: Start difference. First operand 35426 states and 63636 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 2 states have call successors, (13)