./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 680b86ee69d2fa1a591b34672ee94362515e8041606baf59201de5a19c705dd0 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:49:00,256 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:49:00,323 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:49:00,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:49:00,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:49:00,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:49:00,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:49:00,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:49:00,351 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:49:00,351 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:49:00,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:49:00,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:49:00,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:49:00,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:49:00,354 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:49:00,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:49:00,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:49:00,355 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:49:00,355 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:49:00,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:49:00,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:49:00,355 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:49:00,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:49:00,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:49:00,356 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:49:00,356 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:49:00,357 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:49:00,357 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:49:00,359 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:49:00,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:49:00,359 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:49:00,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:49:00,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:49:00,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:49:00,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:49:00,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:49:00,360 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:49:00,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:49:00,360 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:49:00,361 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:49:00,361 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:49:00,362 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:49:00,362 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 680b86ee69d2fa1a591b34672ee94362515e8041606baf59201de5a19c705dd0 [2024-11-08 14:49:00,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:49:00,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:49:00,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:49:00,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:49:00,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:49:00,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c [2024-11-08 14:49:01,751 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:49:02,004 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:49:02,005 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c [2024-11-08 14:49:02,027 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7ba88e45/1394d1aa9e234ccba65a2f54630d96dd/FLAG034922e4e [2024-11-08 14:49:02,331 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7ba88e45/1394d1aa9e234ccba65a2f54630d96dd [2024-11-08 14:49:02,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:49:02,334 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:49:02,335 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:49:02,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:49:02,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:49:02,340 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:02,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@242116b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02, skipping insertion in model container [2024-11-08 14:49:02,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:02,389 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:49:02,631 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c[13407,13420] [2024-11-08 14:49:02,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:49:02,811 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:49:02,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-08 14:49:02,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [86] [2024-11-08 14:49:02,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [452] [2024-11-08 14:49:02,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [553] [2024-11-08 14:49:02,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [562] [2024-11-08 14:49:02,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [916] [2024-11-08 14:49:02,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1099] [2024-11-08 14:49:02,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1770] [2024-11-08 14:49:02,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1783] [2024-11-08 14:49:02,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1903] [2024-11-08 14:49:02,844 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c[13407,13420] [2024-11-08 14:49:02,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:49:02,942 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:49:02,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02 WrapperNode [2024-11-08 14:49:02,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:49:02,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:49:02,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:49:02,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:49:02,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:02,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:03,003 INFO L138 Inliner]: procedures = 91, calls = 335, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 834 [2024-11-08 14:49:03,004 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:49:03,004 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:49:03,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:49:03,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:49:03,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:03,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:03,019 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:03,048 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-08 14:49:03,051 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:03,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:03,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:03,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:03,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:03,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:03,117 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:49:03,118 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:49:03,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:49:03,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:49:03,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (1/1) ... [2024-11-08 14:49:03,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:49:03,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:03,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 14:49:03,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 14:49:03,245 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-11-08 14:49:03,246 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-11-08 14:49:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:49:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-08 14:49:03,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-08 14:49:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-08 14:49:03,246 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-08 14:49:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-08 14:49:03,246 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-08 14:49:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-08 14:49:03,246 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-08 14:49:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-08 14:49:03,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-08 14:49:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 14:49:03,246 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 14:49:03,246 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 14:49:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 14:49:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-08 14:49:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-08 14:49:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-08 14:49:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-08 14:49:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-08 14:49:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-08 14:49:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-08 14:49:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-08 14:49:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-08 14:49:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-08 14:49:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-08 14:49:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-08 14:49:03,247 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-08 14:49:03,247 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-08 14:49:03,248 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-08 14:49:03,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-08 14:49:03,248 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 14:49:03,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-08 14:49:03,249 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-08 14:49:03,249 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-08 14:49:03,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:49:03,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:49:03,249 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-08 14:49:03,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-08 14:49:03,414 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:49:03,416 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:49:04,318 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-11-08 14:49:04,318 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:49:04,345 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:49:04,348 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 14:49:04,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:49:04 BoogieIcfgContainer [2024-11-08 14:49:04,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:49:04,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:49:04,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:49:04,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:49:04,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:49:02" (1/3) ... [2024-11-08 14:49:04,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1649f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:49:04, skipping insertion in model container [2024-11-08 14:49:04,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:49:02" (2/3) ... [2024-11-08 14:49:04,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1649f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:49:04, skipping insertion in model container [2024-11-08 14:49:04,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:49:04" (3/3) ... [2024-11-08 14:49:04,355 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product25.cil.c [2024-11-08 14:49:04,368 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:49:04,368 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:49:04,430 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:49:04,434 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;@693463cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:49:04,434 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:49:04,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 548 states, 433 states have (on average 1.7066974595842956) internal successors, (739), 454 states have internal predecessors, (739), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-08 14:49:04,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 14:49:04,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:04,458 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] [2024-11-08 14:49:04,458 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:04,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:04,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1967759717, now seen corresponding path program 1 times [2024-11-08 14:49:04,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:04,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504424339] [2024-11-08 14:49:04,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:04,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:49:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:49:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:49:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 14:49:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,536 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:05,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:05,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504424339] [2024-11-08 14:49:05,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504424339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:05,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742205369] [2024-11-08 14:49:05,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:05,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:05,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:05,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:05,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 14:49:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:05,839 INFO L255 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 14:49:05,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:05,866 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:49:05,866 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:05,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742205369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:05,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:05,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2024-11-08 14:49:05,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580423426] [2024-11-08 14:49:05,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:05,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 14:49:05,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:05,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 14:49:05,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:49:05,893 INFO L87 Difference]: Start difference. First operand has 548 states, 433 states have (on average 1.7066974595842956) internal successors, (739), 454 states have internal predecessors, (739), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 14:49:05,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:05,960 INFO L93 Difference]: Finished difference Result 569 states and 951 transitions. [2024-11-08 14:49:05,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 14:49:05,962 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-11-08 14:49:05,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:05,984 INFO L225 Difference]: With dead ends: 569 [2024-11-08 14:49:05,984 INFO L226 Difference]: Without dead ends: 540 [2024-11-08 14:49:05,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:49:05,990 INFO L432 NwaCegarLoop]: 912 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:05,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:06,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-08 14:49:06,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2024-11-08 14:49:06,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 427 states have (on average 1.7049180327868851) internal successors, (728), 446 states have internal predecessors, (728), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:49:06,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 905 transitions. [2024-11-08 14:49:06,058 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 905 transitions. Word has length 97 [2024-11-08 14:49:06,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:06,059 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 905 transitions. [2024-11-08 14:49:06,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 14:49:06,060 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 905 transitions. [2024-11-08 14:49:06,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 14:49:06,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:06,066 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] [2024-11-08 14:49:06,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:06,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-08 14:49:06,270 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:06,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:06,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1542777770, now seen corresponding path program 1 times [2024-11-08 14:49:06,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:06,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971508337] [2024-11-08 14:49:06,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:06,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:49:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:49:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:49:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 14:49:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:06,947 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:06,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:06,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971508337] [2024-11-08 14:49:06,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971508337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:06,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259054044] [2024-11-08 14:49:06,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:06,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:06,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:06,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:06,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 14:49:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:07,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:07,276 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:49:07,277 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:07,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259054044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:07,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:07,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:07,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414595023] [2024-11-08 14:49:07,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:07,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:07,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:07,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:07,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:07,280 INFO L87 Difference]: Start difference. First operand 540 states and 905 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:07,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:07,349 INFO L93 Difference]: Finished difference Result 1071 states and 1802 transitions. [2024-11-08 14:49:07,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:49:07,350 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2024-11-08 14:49:07,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:07,353 INFO L225 Difference]: With dead ends: 1071 [2024-11-08 14:49:07,353 INFO L226 Difference]: Without dead ends: 540 [2024-11-08 14:49:07,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:07,362 INFO L432 NwaCegarLoop]: 893 mSDtfsCounter, 5 mSDsluCounter, 1780 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:07,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2673 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:07,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-08 14:49:07,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2024-11-08 14:49:07,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 427 states have (on average 1.7025761124121779) internal successors, (727), 446 states have internal predecessors, (727), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:49:07,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 904 transitions. [2024-11-08 14:49:07,384 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 904 transitions. Word has length 99 [2024-11-08 14:49:07,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:07,384 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 904 transitions. [2024-11-08 14:49:07,385 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:07,385 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 904 transitions. [2024-11-08 14:49:07,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 14:49:07,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:07,387 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] [2024-11-08 14:49:07,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:07,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-08 14:49:07,588 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:07,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:07,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1481525902, now seen corresponding path program 1 times [2024-11-08 14:49:07,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:07,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330937925] [2024-11-08 14:49:07,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:07,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 14:49:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:07,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:49:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,145 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:08,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:08,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330937925] [2024-11-08 14:49:08,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330937925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:08,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695925236] [2024-11-08 14:49:08,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:08,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:08,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:08,148 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:08,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 14:49:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 1775 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:08,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:08,432 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:49:08,432 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:08,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695925236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:08,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:08,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:08,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333881034] [2024-11-08 14:49:08,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:08,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:08,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:08,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:08,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:08,434 INFO L87 Difference]: Start difference. First operand 540 states and 904 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:08,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:08,484 INFO L93 Difference]: Finished difference Result 1071 states and 1800 transitions. [2024-11-08 14:49:08,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:49:08,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-11-08 14:49:08,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:08,487 INFO L225 Difference]: With dead ends: 1071 [2024-11-08 14:49:08,488 INFO L226 Difference]: Without dead ends: 540 [2024-11-08 14:49:08,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:08,490 INFO L432 NwaCegarLoop]: 893 mSDtfsCounter, 4 mSDsluCounter, 1780 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2673 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:08,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2673 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:08,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-08 14:49:08,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2024-11-08 14:49:08,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 427 states have (on average 1.7002341920374706) internal successors, (726), 446 states have internal predecessors, (726), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:49:08,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 903 transitions. [2024-11-08 14:49:08,505 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 903 transitions. Word has length 101 [2024-11-08 14:49:08,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:08,505 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 903 transitions. [2024-11-08 14:49:08,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:08,506 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 903 transitions. [2024-11-08 14:49:08,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 14:49:08,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:08,508 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] [2024-11-08 14:49:08,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 14:49:08,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:08,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:08,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:08,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1026290454, now seen corresponding path program 1 times [2024-11-08 14:49:08,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:08,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111427704] [2024-11-08 14:49:08,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:08,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:49:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:08,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 14:49:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,234 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:09,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:09,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111427704] [2024-11-08 14:49:09,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111427704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:09,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47579832] [2024-11-08 14:49:09,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:09,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:09,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:09,237 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:09,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 14:49:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:09,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:09,497 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:49:09,498 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:09,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47579832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:09,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:09,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:09,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795506571] [2024-11-08 14:49:09,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:09,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:09,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:09,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:09,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:09,499 INFO L87 Difference]: Start difference. First operand 540 states and 903 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:09,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:09,555 INFO L93 Difference]: Finished difference Result 1078 states and 1807 transitions. [2024-11-08 14:49:09,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:09,556 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-08 14:49:09,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:09,559 INFO L225 Difference]: With dead ends: 1078 [2024-11-08 14:49:09,559 INFO L226 Difference]: Without dead ends: 549 [2024-11-08 14:49:09,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:09,561 INFO L432 NwaCegarLoop]: 892 mSDtfsCounter, 13 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:09,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2670 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:09,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-08 14:49:09,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-08 14:49:09,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 435 states have (on average 1.696551724137931) internal successors, (738), 454 states have internal predecessors, (738), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:49:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 915 transitions. [2024-11-08 14:49:09,581 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 915 transitions. Word has length 103 [2024-11-08 14:49:09,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:09,582 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 915 transitions. [2024-11-08 14:49:09,582 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:09,582 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 915 transitions. [2024-11-08 14:49:09,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 14:49:09,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:09,586 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] [2024-11-08 14:49:09,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:09,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:09,786 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:09,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:09,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1866135415, now seen corresponding path program 1 times [2024-11-08 14:49:09,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:09,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471590942] [2024-11-08 14:49:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:09,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:09,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 14:49:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:49:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 14:49:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,278 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:10,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:10,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471590942] [2024-11-08 14:49:10,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471590942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:10,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195578650] [2024-11-08 14:49:10,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:10,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:10,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:10,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:10,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 14:49:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:10,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:10,551 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:49:10,551 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:10,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195578650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:10,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:10,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:10,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894131078] [2024-11-08 14:49:10,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:10,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:10,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:10,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:10,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:10,552 INFO L87 Difference]: Start difference. First operand 549 states and 915 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:10,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:10,599 INFO L93 Difference]: Finished difference Result 1080 states and 1808 transitions. [2024-11-08 14:49:10,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:10,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-08 14:49:10,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:10,602 INFO L225 Difference]: With dead ends: 1080 [2024-11-08 14:49:10,602 INFO L226 Difference]: Without dead ends: 549 [2024-11-08 14:49:10,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:10,604 INFO L432 NwaCegarLoop]: 892 mSDtfsCounter, 11 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:10,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2670 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:10,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-08 14:49:10,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-08 14:49:10,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 435 states have (on average 1.6942528735632183) internal successors, (737), 454 states have internal predecessors, (737), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:49:10,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 914 transitions. [2024-11-08 14:49:10,617 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 914 transitions. Word has length 104 [2024-11-08 14:49:10,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:10,617 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 914 transitions. [2024-11-08 14:49:10,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:10,618 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 914 transitions. [2024-11-08 14:49:10,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 14:49:10,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:10,619 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] [2024-11-08 14:49:10,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:10,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:10,820 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:10,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:10,821 INFO L85 PathProgramCache]: Analyzing trace with hash 621974734, now seen corresponding path program 1 times [2024-11-08 14:49:10,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:10,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065113712] [2024-11-08 14:49:10,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:10,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:10,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 14:49:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 14:49:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:11,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:11,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065113712] [2024-11-08 14:49:11,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065113712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:11,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395518521] [2024-11-08 14:49:11,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:11,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:11,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:11,293 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:11,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 14:49:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:11,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:11,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:11,592 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 14:49:11,592 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:11,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395518521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:11,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:11,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:11,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953433476] [2024-11-08 14:49:11,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:11,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:11,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:11,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:11,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:11,593 INFO L87 Difference]: Start difference. First operand 549 states and 914 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:11,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:11,638 INFO L93 Difference]: Finished difference Result 1080 states and 1807 transitions. [2024-11-08 14:49:11,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:11,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-08 14:49:11,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:11,641 INFO L225 Difference]: With dead ends: 1080 [2024-11-08 14:49:11,641 INFO L226 Difference]: Without dead ends: 549 [2024-11-08 14:49:11,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:11,643 INFO L432 NwaCegarLoop]: 892 mSDtfsCounter, 10 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:11,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2670 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:11,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-08 14:49:11,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2024-11-08 14:49:11,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 435 states have (on average 1.6919540229885057) internal successors, (736), 454 states have internal predecessors, (736), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:49:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 913 transitions. [2024-11-08 14:49:11,655 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 913 transitions. Word has length 105 [2024-11-08 14:49:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:11,656 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 913 transitions. [2024-11-08 14:49:11,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:11,656 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 913 transitions. [2024-11-08 14:49:11,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 14:49:11,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:11,658 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] [2024-11-08 14:49:11,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:11,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:11,859 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:11,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:11,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1097489107, now seen corresponding path program 1 times [2024-11-08 14:49:11,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:11,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409190414] [2024-11-08 14:49:11,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:11,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 14:49:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:49:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,419 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:49:12,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:12,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409190414] [2024-11-08 14:49:12,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409190414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:12,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115217474] [2024-11-08 14:49:12,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:12,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:12,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:12,421 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:12,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 14:49:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:12,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:49:12,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:12,733 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:49:12,734 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:12,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115217474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:12,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:12,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-08 14:49:12,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185995152] [2024-11-08 14:49:12,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:12,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:49:12,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:12,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:49:12,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:49:12,736 INFO L87 Difference]: Start difference. First operand 549 states and 913 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:12,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:12,812 INFO L93 Difference]: Finished difference Result 1099 states and 1837 transitions. [2024-11-08 14:49:12,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:49:12,813 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2024-11-08 14:49:12,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:12,816 INFO L225 Difference]: With dead ends: 1099 [2024-11-08 14:49:12,816 INFO L226 Difference]: Without dead ends: 572 [2024-11-08 14:49:12,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:49:12,820 INFO L432 NwaCegarLoop]: 893 mSDtfsCounter, 100 mSDsluCounter, 4379 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5272 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:12,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5272 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:12,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-08 14:49:12,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 568. [2024-11-08 14:49:12,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 451 states have (on average 1.689578713968958) internal successors, (762), 472 states have internal predecessors, (762), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2024-11-08 14:49:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 944 transitions. [2024-11-08 14:49:12,836 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 944 transitions. Word has length 106 [2024-11-08 14:49:12,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:12,838 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 944 transitions. [2024-11-08 14:49:12,838 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:12,838 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 944 transitions. [2024-11-08 14:49:12,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 14:49:12,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:12,840 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] [2024-11-08 14:49:12,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 14:49:13,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:13,045 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:13,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:13,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1482855890, now seen corresponding path program 1 times [2024-11-08 14:49:13,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:13,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398500660] [2024-11-08 14:49:13,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:13,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 14:49:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:49:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,494 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:49:13,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:13,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398500660] [2024-11-08 14:49:13,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398500660] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:13,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159958157] [2024-11-08 14:49:13,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:13,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:13,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:13,496 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:13,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 14:49:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:13,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:13,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:13,755 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:49:13,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:13,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159958157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:13,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:13,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:13,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507193425] [2024-11-08 14:49:13,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:13,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:13,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:13,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:13,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:13,757 INFO L87 Difference]: Start difference. First operand 568 states and 944 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:13,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:13,856 INFO L93 Difference]: Finished difference Result 1155 states and 1938 transitions. [2024-11-08 14:49:13,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:49:13,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-11-08 14:49:13,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:13,860 INFO L225 Difference]: With dead ends: 1155 [2024-11-08 14:49:13,860 INFO L226 Difference]: Without dead ends: 583 [2024-11-08 14:49:13,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:13,862 INFO L432 NwaCegarLoop]: 867 mSDtfsCounter, 76 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:13,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2561 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:13,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-08 14:49:13,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 568. [2024-11-08 14:49:13,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 451 states have (on average 1.6784922394678492) internal successors, (757), 472 states have internal predecessors, (757), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2024-11-08 14:49:13,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 939 transitions. [2024-11-08 14:49:13,875 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 939 transitions. Word has length 106 [2024-11-08 14:49:13,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:13,876 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 939 transitions. [2024-11-08 14:49:13,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:13,876 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 939 transitions. [2024-11-08 14:49:13,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 14:49:13,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:13,878 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] [2024-11-08 14:49:13,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 14:49:14,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-08 14:49:14,078 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:14,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:14,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1328827690, now seen corresponding path program 1 times [2024-11-08 14:49:14,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:14,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906524377] [2024-11-08 14:49:14,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:14,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 14:49:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 14:49:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,540 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:49:14,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:14,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906524377] [2024-11-08 14:49:14,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906524377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:14,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448879622] [2024-11-08 14:49:14,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:14,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:14,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:14,542 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:14,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 14:49:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:14,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:14,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:49:14,805 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:14,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448879622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:14,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:14,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:14,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619329161] [2024-11-08 14:49:14,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:14,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:14,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:14,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:14,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:14,807 INFO L87 Difference]: Start difference. First operand 568 states and 939 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:14,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:14,898 INFO L93 Difference]: Finished difference Result 1155 states and 1928 transitions. [2024-11-08 14:49:14,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:49:14,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-11-08 14:49:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:14,901 INFO L225 Difference]: With dead ends: 1155 [2024-11-08 14:49:14,901 INFO L226 Difference]: Without dead ends: 583 [2024-11-08 14:49:14,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:14,903 INFO L432 NwaCegarLoop]: 867 mSDtfsCounter, 75 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:14,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2561 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:14,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-08 14:49:14,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 568. [2024-11-08 14:49:14,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 451 states have (on average 1.6674057649667406) internal successors, (752), 472 states have internal predecessors, (752), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2024-11-08 14:49:14,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 934 transitions. [2024-11-08 14:49:14,916 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 934 transitions. Word has length 108 [2024-11-08 14:49:14,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:14,917 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 934 transitions. [2024-11-08 14:49:14,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:14,917 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 934 transitions. [2024-11-08 14:49:14,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 14:49:14,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:14,919 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:14,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:15,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:15,120 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:15,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:15,120 INFO L85 PathProgramCache]: Analyzing trace with hash -595103666, now seen corresponding path program 1 times [2024-11-08 14:49:15,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:15,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458255208] [2024-11-08 14:49:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:15,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:49:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:49:15,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,558 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:49:15,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:15,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458255208] [2024-11-08 14:49:15,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458255208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:15,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743173781] [2024-11-08 14:49:15,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:15,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:15,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:15,560 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:15,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 14:49:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:15,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:15,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:15,831 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:49:15,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:15,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743173781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:15,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:15,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:15,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376198433] [2024-11-08 14:49:15,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:15,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:15,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:15,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:15,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:15,833 INFO L87 Difference]: Start difference. First operand 568 states and 934 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:15,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:15,969 INFO L93 Difference]: Finished difference Result 1206 states and 2000 transitions. [2024-11-08 14:49:15,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:15,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-08 14:49:15,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:15,975 INFO L225 Difference]: With dead ends: 1206 [2024-11-08 14:49:15,976 INFO L226 Difference]: Without dead ends: 664 [2024-11-08 14:49:15,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:15,978 INFO L432 NwaCegarLoop]: 900 mSDtfsCounter, 130 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:15,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2592 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:15,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-08 14:49:15,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 619. [2024-11-08 14:49:15,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 501 states have (on average 1.6706586826347305) internal successors, (837), 522 states have internal predecessors, (837), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-08 14:49:15,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 1018 transitions. [2024-11-08 14:49:15,994 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 1018 transitions. Word has length 110 [2024-11-08 14:49:15,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:15,994 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 1018 transitions. [2024-11-08 14:49:15,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:15,994 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 1018 transitions. [2024-11-08 14:49:15,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 14:49:15,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:15,996 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:16,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 14:49:16,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 14:49:16,197 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:16,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:16,198 INFO L85 PathProgramCache]: Analyzing trace with hash -947806956, now seen corresponding path program 1 times [2024-11-08 14:49:16,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:16,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339535512] [2024-11-08 14:49:16,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:16,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:49:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,747 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 14:49:16,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:16,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339535512] [2024-11-08 14:49:16,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339535512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:16,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775727901] [2024-11-08 14:49:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:16,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:16,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:16,749 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:16,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 14:49:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:16,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:49:16,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:17,046 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:49:17,046 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:17,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775727901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:17,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:17,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 14 [2024-11-08 14:49:17,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258809322] [2024-11-08 14:49:17,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:17,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:49:17,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:17,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:49:17,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:49:17,047 INFO L87 Difference]: Start difference. First operand 619 states and 1018 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:17,169 INFO L93 Difference]: Finished difference Result 1168 states and 1929 transitions. [2024-11-08 14:49:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:49:17,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2024-11-08 14:49:17,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:17,173 INFO L225 Difference]: With dead ends: 1168 [2024-11-08 14:49:17,173 INFO L226 Difference]: Without dead ends: 641 [2024-11-08 14:49:17,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:49:17,175 INFO L432 NwaCegarLoop]: 873 mSDtfsCounter, 113 mSDsluCounter, 5149 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6022 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:17,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6022 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:17,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-11-08 14:49:17,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 619. [2024-11-08 14:49:17,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 501 states have (on average 1.6706586826347305) internal successors, (837), 522 states have internal predecessors, (837), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-08 14:49:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 1018 transitions. [2024-11-08 14:49:17,190 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 1018 transitions. Word has length 111 [2024-11-08 14:49:17,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:17,190 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 1018 transitions. [2024-11-08 14:49:17,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:17,190 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 1018 transitions. [2024-11-08 14:49:17,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 14:49:17,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:17,192 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] [2024-11-08 14:49:17,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:17,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 14:49:17,393 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:17,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:17,394 INFO L85 PathProgramCache]: Analyzing trace with hash 854479412, now seen corresponding path program 1 times [2024-11-08 14:49:17,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:17,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098985766] [2024-11-08 14:49:17,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:17,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:49:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:17,821 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:49:17,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:17,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098985766] [2024-11-08 14:49:17,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098985766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:17,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153495347] [2024-11-08 14:49:17,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:17,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:17,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:17,823 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:17,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 14:49:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:18,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:18,086 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:49:18,086 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:18,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153495347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:18,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:18,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:18,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829165233] [2024-11-08 14:49:18,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:18,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:18,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:18,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:18,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:18,088 INFO L87 Difference]: Start difference. First operand 619 states and 1018 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:18,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:18,214 INFO L93 Difference]: Finished difference Result 1209 states and 2001 transitions. [2024-11-08 14:49:18,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:18,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-08 14:49:18,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:18,218 INFO L225 Difference]: With dead ends: 1209 [2024-11-08 14:49:18,218 INFO L226 Difference]: Without dead ends: 652 [2024-11-08 14:49:18,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:18,220 INFO L432 NwaCegarLoop]: 899 mSDtfsCounter, 124 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:18,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 2565 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:18,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-11-08 14:49:18,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 619. [2024-11-08 14:49:18,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 501 states have (on average 1.6606786427145708) internal successors, (832), 522 states have internal predecessors, (832), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-08 14:49:18,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 1013 transitions. [2024-11-08 14:49:18,232 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 1013 transitions. Word has length 111 [2024-11-08 14:49:18,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:18,233 INFO L471 AbstractCegarLoop]: Abstraction has 619 states and 1013 transitions. [2024-11-08 14:49:18,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:18,233 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 1013 transitions. [2024-11-08 14:49:18,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 14:49:18,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:18,235 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:18,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:18,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 14:49:18,435 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:18,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:18,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1757294413, now seen corresponding path program 1 times [2024-11-08 14:49:18,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:18,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116679789] [2024-11-08 14:49:18,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:18,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:49:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 14:49:18,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:18,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116679789] [2024-11-08 14:49:18,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116679789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:18,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842829219] [2024-11-08 14:49:18,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:18,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:18,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:18,970 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:18,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 14:49:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:49:19,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:49:19,278 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:19,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842829219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:19,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:19,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2024-11-08 14:49:19,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024369036] [2024-11-08 14:49:19,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:19,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:49:19,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:19,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:49:19,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-08 14:49:19,280 INFO L87 Difference]: Start difference. First operand 619 states and 1013 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:19,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:19,344 INFO L93 Difference]: Finished difference Result 1103 states and 1821 transitions. [2024-11-08 14:49:19,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:49:19,345 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2024-11-08 14:49:19,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:19,348 INFO L225 Difference]: With dead ends: 1103 [2024-11-08 14:49:19,348 INFO L226 Difference]: Without dead ends: 643 [2024-11-08 14:49:19,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2024-11-08 14:49:19,350 INFO L432 NwaCegarLoop]: 886 mSDtfsCounter, 86 mSDsluCounter, 4351 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 5237 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:19,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 5237 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:19,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-08 14:49:19,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 638. [2024-11-08 14:49:19,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 517 states have (on average 1.6595744680851063) internal successors, (858), 540 states have internal predecessors, (858), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:19,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 1043 transitions. [2024-11-08 14:49:19,365 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 1043 transitions. Word has length 111 [2024-11-08 14:49:19,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:19,365 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 1043 transitions. [2024-11-08 14:49:19,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:19,366 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 1043 transitions. [2024-11-08 14:49:19,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 14:49:19,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:19,368 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] [2024-11-08 14:49:19,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:19,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 14:49:19,568 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:19,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:19,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1515032222, now seen corresponding path program 1 times [2024-11-08 14:49:19,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:19,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045155030] [2024-11-08 14:49:19,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:19,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:19,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 14:49:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:49:20,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:20,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045155030] [2024-11-08 14:49:20,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045155030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:20,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003213538] [2024-11-08 14:49:20,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:20,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:20,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:20,078 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:20,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 14:49:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 14:49:20,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:49:20,398 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:20,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003213538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:20,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:20,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2024-11-08 14:49:20,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363771345] [2024-11-08 14:49:20,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:20,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:49:20,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:20,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:49:20,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:49:20,399 INFO L87 Difference]: Start difference. First operand 638 states and 1043 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:20,463 INFO L93 Difference]: Finished difference Result 1133 states and 1872 transitions. [2024-11-08 14:49:20,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:49:20,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2024-11-08 14:49:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:20,468 INFO L225 Difference]: With dead ends: 1133 [2024-11-08 14:49:20,468 INFO L226 Difference]: Without dead ends: 673 [2024-11-08 14:49:20,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-08 14:49:20,470 INFO L432 NwaCegarLoop]: 886 mSDtfsCounter, 95 mSDsluCounter, 4341 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5227 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:20,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5227 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:20,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-08 14:49:20,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 638. [2024-11-08 14:49:20,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 517 states have (on average 1.6595744680851063) internal successors, (858), 540 states have internal predecessors, (858), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:20,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 1043 transitions. [2024-11-08 14:49:20,485 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 1043 transitions. Word has length 112 [2024-11-08 14:49:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:20,486 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 1043 transitions. [2024-11-08 14:49:20,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:20,486 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 1043 transitions. [2024-11-08 14:49:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 14:49:20,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:20,488 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] [2024-11-08 14:49:20,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 14:49:20,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:20,689 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:20,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:20,689 INFO L85 PathProgramCache]: Analyzing trace with hash -176828958, now seen corresponding path program 1 times [2024-11-08 14:49:20,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:20,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703315149] [2024-11-08 14:49:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:20,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:20,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 14:49:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,145 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 14:49:21,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:21,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703315149] [2024-11-08 14:49:21,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703315149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:21,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919533436] [2024-11-08 14:49:21,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:21,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:21,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:21,147 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:21,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 14:49:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:49:21,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:49:21,462 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:21,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919533436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:21,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:21,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-08 14:49:21,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611716565] [2024-11-08 14:49:21,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:21,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:49:21,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:21,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:49:21,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:49:21,464 INFO L87 Difference]: Start difference. First operand 638 states and 1043 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:21,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:21,555 INFO L93 Difference]: Finished difference Result 1118 states and 1846 transitions. [2024-11-08 14:49:21,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:49:21,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2024-11-08 14:49:21,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:21,561 INFO L225 Difference]: With dead ends: 1118 [2024-11-08 14:49:21,561 INFO L226 Difference]: Without dead ends: 658 [2024-11-08 14:49:21,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-08 14:49:21,564 INFO L432 NwaCegarLoop]: 875 mSDtfsCounter, 113 mSDsluCounter, 5155 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6030 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:21,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6030 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:21,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-08 14:49:21,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 638. [2024-11-08 14:49:21,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 517 states have (on average 1.6595744680851063) internal successors, (858), 540 states have internal predecessors, (858), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:21,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 1043 transitions. [2024-11-08 14:49:21,578 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 1043 transitions. Word has length 112 [2024-11-08 14:49:21,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:21,579 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 1043 transitions. [2024-11-08 14:49:21,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:21,579 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 1043 transitions. [2024-11-08 14:49:21,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 14:49:21,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:21,581 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] [2024-11-08 14:49:21,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-08 14:49:21,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-08 14:49:21,782 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:21,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:21,782 INFO L85 PathProgramCache]: Analyzing trace with hash 399084010, now seen corresponding path program 1 times [2024-11-08 14:49:21,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:21,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85479262] [2024-11-08 14:49:21,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:21,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:21,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 14:49:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 14:49:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,194 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 14:49:22,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:22,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85479262] [2024-11-08 14:49:22,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85479262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:22,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640054914] [2024-11-08 14:49:22,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:22,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:22,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:22,197 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:22,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 14:49:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:22,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 14:49:22,455 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:22,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640054914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:22,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:22,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-08 14:49:22,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340486635] [2024-11-08 14:49:22,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:22,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:22,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:22,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:22,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:22,456 INFO L87 Difference]: Start difference. First operand 638 states and 1043 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:22,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:22,489 INFO L93 Difference]: Finished difference Result 1170 states and 1931 transitions. [2024-11-08 14:49:22,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:22,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-11-08 14:49:22,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:22,492 INFO L225 Difference]: With dead ends: 1170 [2024-11-08 14:49:22,493 INFO L226 Difference]: Without dead ends: 638 [2024-11-08 14:49:22,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:49:22,494 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 13 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:22,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2639 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:22,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-08 14:49:22,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 638. [2024-11-08 14:49:22,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 517 states have (on average 1.6518375241779497) internal successors, (854), 540 states have internal predecessors, (854), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:22,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 1039 transitions. [2024-11-08 14:49:22,507 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 1039 transitions. Word has length 112 [2024-11-08 14:49:22,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:22,507 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 1039 transitions. [2024-11-08 14:49:22,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:22,508 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 1039 transitions. [2024-11-08 14:49:22,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 14:49:22,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:22,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:22,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:22,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 14:49:22,710 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:22,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:22,711 INFO L85 PathProgramCache]: Analyzing trace with hash -42579029, now seen corresponding path program 1 times [2024-11-08 14:49:22,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:22,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079599809] [2024-11-08 14:49:22,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:22,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:22,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:49:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,203 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 14:49:23,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:23,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079599809] [2024-11-08 14:49:23,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079599809] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:23,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8465521] [2024-11-08 14:49:23,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:23,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:23,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:23,205 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:23,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-08 14:49:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 14:49:23,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:23,519 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:49:23,519 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:23,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8465521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:23,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:23,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 19 [2024-11-08 14:49:23,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208554536] [2024-11-08 14:49:23,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:23,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:49:23,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:23,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:49:23,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-11-08 14:49:23,520 INFO L87 Difference]: Start difference. First operand 638 states and 1039 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:23,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:23,611 INFO L93 Difference]: Finished difference Result 1118 states and 1843 transitions. [2024-11-08 14:49:23,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:49:23,611 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 113 [2024-11-08 14:49:23,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:23,614 INFO L225 Difference]: With dead ends: 1118 [2024-11-08 14:49:23,614 INFO L226 Difference]: Without dead ends: 658 [2024-11-08 14:49:23,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2024-11-08 14:49:23,616 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 121 mSDsluCounter, 5117 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 5986 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:23,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 5986 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:23,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-08 14:49:23,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 638. [2024-11-08 14:49:23,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 517 states have (on average 1.6518375241779497) internal successors, (854), 540 states have internal predecessors, (854), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:23,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 1039 transitions. [2024-11-08 14:49:23,629 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 1039 transitions. Word has length 113 [2024-11-08 14:49:23,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:23,629 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 1039 transitions. [2024-11-08 14:49:23,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:23,629 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 1039 transitions. [2024-11-08 14:49:23,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 14:49:23,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:23,631 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:23,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-08 14:49:23,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 14:49:23,832 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:23,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:23,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1003802297, now seen corresponding path program 1 times [2024-11-08 14:49:23,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:23,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354240391] [2024-11-08 14:49:23,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:23,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:23,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:49:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:49:24,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:24,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354240391] [2024-11-08 14:49:24,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354240391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:24,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745685578] [2024-11-08 14:49:24,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:24,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:24,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:24,280 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:24,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-08 14:49:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 14:49:24,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:24,563 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 14:49:24,564 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:24,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745685578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:24,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:24,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-08 14:49:24,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65222399] [2024-11-08 14:49:24,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:24,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:24,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:24,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:24,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:49:24,565 INFO L87 Difference]: Start difference. First operand 638 states and 1039 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:24,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:24,601 INFO L93 Difference]: Finished difference Result 1214 states and 1999 transitions. [2024-11-08 14:49:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:49:24,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2024-11-08 14:49:24,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:24,604 INFO L225 Difference]: With dead ends: 1214 [2024-11-08 14:49:24,604 INFO L226 Difference]: Without dead ends: 662 [2024-11-08 14:49:24,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:49:24,606 INFO L432 NwaCegarLoop]: 875 mSDtfsCounter, 6 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2612 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:24,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2612 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:24,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-08 14:49:24,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-08 14:49:24,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 541 states have (on average 1.6303142329020333) internal successors, (882), 564 states have internal predecessors, (882), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:24,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1067 transitions. [2024-11-08 14:49:24,619 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1067 transitions. Word has length 114 [2024-11-08 14:49:24,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:24,620 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1067 transitions. [2024-11-08 14:49:24,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:24,620 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1067 transitions. [2024-11-08 14:49:24,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 14:49:24,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:24,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:24,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-08 14:49:24,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 14:49:24,823 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:24,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:24,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1792760933, now seen corresponding path program 1 times [2024-11-08 14:49:24,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:24,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460826983] [2024-11-08 14:49:24,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:24,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:24,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:49:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:49:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:49:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,232 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:25,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:25,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460826983] [2024-11-08 14:49:25,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460826983] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:25,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788505864] [2024-11-08 14:49:25,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:25,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:25,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:25,233 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:25,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-08 14:49:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 14:49:25,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:49:25,484 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:25,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788505864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:25,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:25,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:25,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274252457] [2024-11-08 14:49:25,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:25,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:25,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:25,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:25,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:25,485 INFO L87 Difference]: Start difference. First operand 662 states and 1067 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:25,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:25,503 INFO L93 Difference]: Finished difference Result 1119 states and 1838 transitions. [2024-11-08 14:49:25,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:49:25,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 114 [2024-11-08 14:49:25,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:25,506 INFO L225 Difference]: With dead ends: 1119 [2024-11-08 14:49:25,506 INFO L226 Difference]: Without dead ends: 664 [2024-11-08 14:49:25,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:25,508 INFO L432 NwaCegarLoop]: 889 mSDtfsCounter, 0 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:25,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2661 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:25,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-08 14:49:25,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 664. [2024-11-08 14:49:25,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 543 states have (on average 1.6279926335174955) internal successors, (884), 566 states have internal predecessors, (884), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2024-11-08 14:49:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 1069 transitions. [2024-11-08 14:49:25,520 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 1069 transitions. Word has length 114 [2024-11-08 14:49:25,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:25,521 INFO L471 AbstractCegarLoop]: Abstraction has 664 states and 1069 transitions. [2024-11-08 14:49:25,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:25,521 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 1069 transitions. [2024-11-08 14:49:25,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 14:49:25,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:25,523 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:25,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-08 14:49:25,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:25,723 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:25,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:25,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2126746652, now seen corresponding path program 1 times [2024-11-08 14:49:25,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:25,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171131635] [2024-11-08 14:49:25,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:25,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:25,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:25,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:49:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,166 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:49:26,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:26,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171131635] [2024-11-08 14:49:26,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171131635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:26,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183580729] [2024-11-08 14:49:26,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:26,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:26,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:26,170 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:26,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-08 14:49:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:26,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 14:49:26,408 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 14:49:26,550 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:26,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183580729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:26,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:26,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2024-11-08 14:49:26,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135152368] [2024-11-08 14:49:26,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:26,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:49:26,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:26,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:49:26,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:49:26,551 INFO L87 Difference]: Start difference. First operand 664 states and 1069 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-08 14:49:29,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:29,305 INFO L93 Difference]: Finished difference Result 1818 states and 3022 transitions. [2024-11-08 14:49:29,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:49:29,305 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 117 [2024-11-08 14:49:29,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:29,316 INFO L225 Difference]: With dead ends: 1818 [2024-11-08 14:49:29,316 INFO L226 Difference]: Without dead ends: 1361 [2024-11-08 14:49:29,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2024-11-08 14:49:29,318 INFO L432 NwaCegarLoop]: 951 mSDtfsCounter, 2902 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 5880 mSolverCounterSat, 678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3026 SdHoareTripleChecker+Valid, 4328 SdHoareTripleChecker+Invalid, 6558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 5880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:29,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3026 Valid, 4328 Invalid, 6558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [678 Valid, 5880 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 14:49:29,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2024-11-08 14:49:29,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1342. [2024-11-08 14:49:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1066 states have (on average 1.6313320825515947) internal successors, (1739), 1113 states have internal predecessors, (1739), 218 states have call successors, (218), 44 states have call predecessors, (218), 57 states have return successors, (251), 215 states have call predecessors, (251), 213 states have call successors, (251) [2024-11-08 14:49:29,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 2208 transitions. [2024-11-08 14:49:29,353 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 2208 transitions. Word has length 117 [2024-11-08 14:49:29,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:29,353 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 2208 transitions. [2024-11-08 14:49:29,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-08 14:49:29,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 2208 transitions. [2024-11-08 14:49:29,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 14:49:29,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:29,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:29,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-08 14:49:29,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:29,560 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:29,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:29,561 INFO L85 PathProgramCache]: Analyzing trace with hash -774773161, now seen corresponding path program 1 times [2024-11-08 14:49:29,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:29,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266405756] [2024-11-08 14:49:29,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:29,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:29,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:29,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:29,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:29,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:29,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:29,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:29,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:49:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:30,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:30,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:30,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:49:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:30,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 14:49:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:30,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:49:30,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:30,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266405756] [2024-11-08 14:49:30,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266405756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:30,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265742971] [2024-11-08 14:49:30,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:30,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:30,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:30,039 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:30,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-08 14:49:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:30,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 14:49:30,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:30,346 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:49:30,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:30,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265742971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:30,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:30,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-11-08 14:49:30,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40684017] [2024-11-08 14:49:30,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:30,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:49:30,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:30,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:49:30,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:49:30,347 INFO L87 Difference]: Start difference. First operand 1342 states and 2208 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:30,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:30,628 INFO L93 Difference]: Finished difference Result 3341 states and 5636 transitions. [2024-11-08 14:49:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:49:30,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 118 [2024-11-08 14:49:30,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:30,639 INFO L225 Difference]: With dead ends: 3341 [2024-11-08 14:49:30,639 INFO L226 Difference]: Without dead ends: 2318 [2024-11-08 14:49:30,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:49:30,644 INFO L432 NwaCegarLoop]: 1388 mSDtfsCounter, 731 mSDsluCounter, 3479 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 4867 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:30,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 4867 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 14:49:30,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2024-11-08 14:49:30,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2299. [2024-11-08 14:49:30,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1799 states have (on average 1.6397998888271261) internal successors, (2950), 1880 states have internal predecessors, (2950), 401 states have call successors, (401), 80 states have call predecessors, (401), 98 states have return successors, (472), 400 states have call predecessors, (472), 396 states have call successors, (472) [2024-11-08 14:49:30,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3823 transitions. [2024-11-08 14:49:30,710 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3823 transitions. Word has length 118 [2024-11-08 14:49:30,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:30,710 INFO L471 AbstractCegarLoop]: Abstraction has 2299 states and 3823 transitions. [2024-11-08 14:49:30,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:30,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3823 transitions. [2024-11-08 14:49:30,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 14:49:30,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:30,716 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, 1, 1] [2024-11-08 14:49:30,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:30,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:30,917 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:30,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:30,917 INFO L85 PathProgramCache]: Analyzing trace with hash 112789604, now seen corresponding path program 1 times [2024-11-08 14:49:30,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:30,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559957069] [2024-11-08 14:49:30,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:30,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:49:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 14:49:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 14:49:31,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:31,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559957069] [2024-11-08 14:49:31,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559957069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:31,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668895393] [2024-11-08 14:49:31,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:31,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:31,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:31,471 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:31,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-08 14:49:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:31,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 14:49:31,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:31,745 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 14:49:31,745 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:31,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668895393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:31,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:31,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2024-11-08 14:49:31,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703835242] [2024-11-08 14:49:31,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:31,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:31,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:31,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:31,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:49:31,746 INFO L87 Difference]: Start difference. First operand 2299 states and 3823 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:31,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:31,804 INFO L93 Difference]: Finished difference Result 4436 states and 7427 transitions. [2024-11-08 14:49:31,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 14:49:31,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 120 [2024-11-08 14:49:31,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:31,817 INFO L225 Difference]: With dead ends: 4436 [2024-11-08 14:49:31,817 INFO L226 Difference]: Without dead ends: 2335 [2024-11-08 14:49:31,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:49:31,825 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 5 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2611 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:31,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2611 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:31,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2335 states. [2024-11-08 14:49:31,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2335 to 2317. [2024-11-08 14:49:31,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 1817 states have (on average 1.640066042927903) internal successors, (2980), 1898 states have internal predecessors, (2980), 401 states have call successors, (401), 80 states have call predecessors, (401), 98 states have return successors, (472), 400 states have call predecessors, (472), 396 states have call successors, (472) [2024-11-08 14:49:31,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 3853 transitions. [2024-11-08 14:49:31,887 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 3853 transitions. Word has length 120 [2024-11-08 14:49:31,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:31,888 INFO L471 AbstractCegarLoop]: Abstraction has 2317 states and 3853 transitions. [2024-11-08 14:49:31,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:49:31,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 3853 transitions. [2024-11-08 14:49:31,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 14:49:31,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:31,900 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:31,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:32,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:32,101 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:32,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:32,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1145465082, now seen corresponding path program 1 times [2024-11-08 14:49:32,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:32,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697985513] [2024-11-08 14:49:32,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:32,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:49:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:49:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:49:32,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:32,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697985513] [2024-11-08 14:49:32,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697985513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:32,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881690051] [2024-11-08 14:49:32,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:32,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:32,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:32,649 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:32,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-08 14:49:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:32,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 14:49:32,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:32,968 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 14:49:32,968 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:32,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881690051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:32,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:32,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2024-11-08 14:49:32,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711187399] [2024-11-08 14:49:32,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:32,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:49:32,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:32,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:49:32,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2024-11-08 14:49:32,969 INFO L87 Difference]: Start difference. First operand 2317 states and 3853 transitions. Second operand has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:33,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:33,086 INFO L93 Difference]: Finished difference Result 4378 states and 7322 transitions. [2024-11-08 14:49:33,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:49:33,087 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2024-11-08 14:49:33,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:33,098 INFO L225 Difference]: With dead ends: 4378 [2024-11-08 14:49:33,098 INFO L226 Difference]: Without dead ends: 2387 [2024-11-08 14:49:33,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2024-11-08 14:49:33,105 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 89 mSDsluCounter, 5138 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 6007 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:33,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 6007 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:33,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2024-11-08 14:49:33,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2320. [2024-11-08 14:49:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2320 states, 1819 states have (on average 1.638812534359538) internal successors, (2981), 1901 states have internal predecessors, (2981), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-08 14:49:33,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3855 transitions. [2024-11-08 14:49:33,166 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3855 transitions. Word has length 121 [2024-11-08 14:49:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:33,167 INFO L471 AbstractCegarLoop]: Abstraction has 2320 states and 3855 transitions. [2024-11-08 14:49:33,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:49:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3855 transitions. [2024-11-08 14:49:33,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 14:49:33,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:33,173 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] [2024-11-08 14:49:33,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:33,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:33,374 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:33,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:33,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1015959048, now seen corresponding path program 1 times [2024-11-08 14:49:33,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:33,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691692763] [2024-11-08 14:49:33,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:33,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:49:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:49:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:33,873 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 14:49:33,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:33,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691692763] [2024-11-08 14:49:33,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691692763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:33,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652592398] [2024-11-08 14:49:33,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:33,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:33,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:33,875 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:33,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-08 14:49:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:34,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 14:49:34,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 14:49:34,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:34,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652592398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:34,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:34,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 15 [2024-11-08 14:49:34,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759653362] [2024-11-08 14:49:34,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:34,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:49:34,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:34,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:49:34,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:49:34,258 INFO L87 Difference]: Start difference. First operand 2320 states and 3855 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 14:49:34,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:34,502 INFO L93 Difference]: Finished difference Result 2533 states and 4209 transitions. [2024-11-08 14:49:34,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:34,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 121 [2024-11-08 14:49:34,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:34,515 INFO L225 Difference]: With dead ends: 2533 [2024-11-08 14:49:34,515 INFO L226 Difference]: Without dead ends: 2516 [2024-11-08 14:49:34,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:49:34,517 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 873 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:34,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1623 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 14:49:34,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2024-11-08 14:49:34,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 2338. [2024-11-08 14:49:34,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2338 states, 1837 states have (on average 1.632553075666848) internal successors, (2999), 1919 states have internal predecessors, (2999), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-08 14:49:34,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 3873 transitions. [2024-11-08 14:49:34,577 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 3873 transitions. Word has length 121 [2024-11-08 14:49:34,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:34,577 INFO L471 AbstractCegarLoop]: Abstraction has 2338 states and 3873 transitions. [2024-11-08 14:49:34,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-08 14:49:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 3873 transitions. [2024-11-08 14:49:34,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 14:49:34,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:34,583 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, 1, 1, 1, 1] [2024-11-08 14:49:34,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:34,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:34,783 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:34,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:34,784 INFO L85 PathProgramCache]: Analyzing trace with hash -830416413, now seen corresponding path program 1 times [2024-11-08 14:49:34,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:34,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711858222] [2024-11-08 14:49:34,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:34,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:34,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:34,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:49:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:49:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:49:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 14:49:35,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:35,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711858222] [2024-11-08 14:49:35,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711858222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:35,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586451005] [2024-11-08 14:49:35,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:35,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:35,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:35,323 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:35,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-08 14:49:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:35,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 1817 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 14:49:35,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:35,657 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 14:49:35,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:35,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586451005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:35,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:35,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-08 14:49:35,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145041541] [2024-11-08 14:49:35,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:35,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:49:35,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:35,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:49:35,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2024-11-08 14:49:35,658 INFO L87 Difference]: Start difference. First operand 2338 states and 3873 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 14:49:35,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:35,716 INFO L93 Difference]: Finished difference Result 2355 states and 3893 transitions. [2024-11-08 14:49:35,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:35,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2024-11-08 14:49:35,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:35,731 INFO L225 Difference]: With dead ends: 2355 [2024-11-08 14:49:35,731 INFO L226 Difference]: Without dead ends: 2338 [2024-11-08 14:49:35,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2024-11-08 14:49:35,733 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 0 mSDsluCounter, 2660 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3548 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:35,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3548 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:35,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2338 states. [2024-11-08 14:49:35,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2338 to 2338. [2024-11-08 14:49:35,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2338 states, 1837 states have (on average 1.6292868807838867) internal successors, (2993), 1919 states have internal predecessors, (2993), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-08 14:49:35,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 3867 transitions. [2024-11-08 14:49:35,805 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 3867 transitions. Word has length 127 [2024-11-08 14:49:35,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:35,806 INFO L471 AbstractCegarLoop]: Abstraction has 2338 states and 3867 transitions. [2024-11-08 14:49:35,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-08 14:49:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 3867 transitions. [2024-11-08 14:49:35,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 14:49:35,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:35,812 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:35,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:36,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-08 14:49:36,013 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:36,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:36,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1974262225, now seen corresponding path program 1 times [2024-11-08 14:49:36,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:36,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602331194] [2024-11-08 14:49:36,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:36,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:49:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:49:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:49:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:49:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:36,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:36,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602331194] [2024-11-08 14:49:36,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602331194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:36,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381924172] [2024-11-08 14:49:36,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:36,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:36,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:36,508 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:36,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-08 14:49:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:36,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 14:49:36,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:36,826 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:49:36,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:36,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381924172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:36,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:36,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 12 [2024-11-08 14:49:36,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519589598] [2024-11-08 14:49:36,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:36,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:49:36,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:36,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:49:36,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:49:36,827 INFO L87 Difference]: Start difference. First operand 2338 states and 3867 transitions. Second operand has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:49:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:36,911 INFO L93 Difference]: Finished difference Result 4531 states and 7527 transitions. [2024-11-08 14:49:36,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:49:36,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 138 [2024-11-08 14:49:36,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:36,924 INFO L225 Difference]: With dead ends: 4531 [2024-11-08 14:49:36,924 INFO L226 Difference]: Without dead ends: 2418 [2024-11-08 14:49:36,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:49:36,934 INFO L432 NwaCegarLoop]: 879 mSDtfsCounter, 119 mSDsluCounter, 4293 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5172 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:36,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5172 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:36,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2024-11-08 14:49:36,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2338. [2024-11-08 14:49:36,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2338 states, 1837 states have (on average 1.6292868807838867) internal successors, (2993), 1919 states have internal predecessors, (2993), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2024-11-08 14:49:36,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 3867 transitions. [2024-11-08 14:49:36,992 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 3867 transitions. Word has length 138 [2024-11-08 14:49:36,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:36,992 INFO L471 AbstractCegarLoop]: Abstraction has 2338 states and 3867 transitions. [2024-11-08 14:49:36,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:49:36,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 3867 transitions. [2024-11-08 14:49:36,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 14:49:36,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:36,999 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:37,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:37,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-08 14:49:37,199 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:37,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:37,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1016183460, now seen corresponding path program 1 times [2024-11-08 14:49:37,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:37,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108989384] [2024-11-08 14:49:37,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:37,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:49:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:49:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:49:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 14:49:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 14:49:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 14:49:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:49:37,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:37,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108989384] [2024-11-08 14:49:37,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108989384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:37,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938966303] [2024-11-08 14:49:37,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:37,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:37,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:37,607 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:37,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-08 14:49:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:37,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 14:49:37,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:37,902 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 14:49:37,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:37,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938966303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:37,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:37,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2024-11-08 14:49:37,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954575558] [2024-11-08 14:49:37,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:37,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:37,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:37,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:37,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:49:37,903 INFO L87 Difference]: Start difference. First operand 2338 states and 3867 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:37,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:37,986 INFO L93 Difference]: Finished difference Result 4538 states and 7536 transitions. [2024-11-08 14:49:37,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:37,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2024-11-08 14:49:37,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:38,003 INFO L225 Difference]: With dead ends: 4538 [2024-11-08 14:49:38,003 INFO L226 Difference]: Without dead ends: 2168 [2024-11-08 14:49:38,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:49:38,009 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 7 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:38,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2639 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:38,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2024-11-08 14:49:38,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2168. [2024-11-08 14:49:38,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 1682 states have (on average 1.6361474435196195) internal successors, (2752), 1758 states have internal predecessors, (2752), 396 states have call successors, (396), 77 states have call predecessors, (396), 89 states have return successors, (459), 394 states have call predecessors, (459), 391 states have call successors, (459) [2024-11-08 14:49:38,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 3607 transitions. [2024-11-08 14:49:38,059 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 3607 transitions. Word has length 138 [2024-11-08 14:49:38,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:38,059 INFO L471 AbstractCegarLoop]: Abstraction has 2168 states and 3607 transitions. [2024-11-08 14:49:38,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:38,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 3607 transitions. [2024-11-08 14:49:38,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 14:49:38,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:38,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:38,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:38,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-08 14:49:38,267 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:38,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:38,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1032862260, now seen corresponding path program 1 times [2024-11-08 14:49:38,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:38,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640150572] [2024-11-08 14:49:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:38,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 14:49:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 14:49:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:49:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:49:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,679 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:38,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:38,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640150572] [2024-11-08 14:49:38,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640150572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:38,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625792194] [2024-11-08 14:49:38,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:38,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:38,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:38,681 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:38,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-08 14:49:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:38,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:38,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 14:49:38,970 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:38,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625792194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:38,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:38,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:49:38,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701154618] [2024-11-08 14:49:38,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:38,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:38,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:38,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:38,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:38,971 INFO L87 Difference]: Start difference. First operand 2168 states and 3607 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:39,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:39,058 INFO L93 Difference]: Finished difference Result 4338 states and 7227 transitions. [2024-11-08 14:49:39,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:39,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2024-11-08 14:49:39,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:39,068 INFO L225 Difference]: With dead ends: 4338 [2024-11-08 14:49:39,068 INFO L226 Difference]: Without dead ends: 2201 [2024-11-08 14:49:39,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:39,074 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 128 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2518 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:39,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2518 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:39,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2024-11-08 14:49:39,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2168. [2024-11-08 14:49:39,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2168 states, 1682 states have (on average 1.635552913198573) internal successors, (2751), 1758 states have internal predecessors, (2751), 396 states have call successors, (396), 77 states have call predecessors, (396), 89 states have return successors, (459), 394 states have call predecessors, (459), 391 states have call successors, (459) [2024-11-08 14:49:39,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2168 states to 2168 states and 3606 transitions. [2024-11-08 14:49:39,143 INFO L78 Accepts]: Start accepts. Automaton has 2168 states and 3606 transitions. Word has length 140 [2024-11-08 14:49:39,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:39,143 INFO L471 AbstractCegarLoop]: Abstraction has 2168 states and 3606 transitions. [2024-11-08 14:49:39,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:39,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2168 states and 3606 transitions. [2024-11-08 14:49:39,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-08 14:49:39,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:39,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:39,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:39,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-08 14:49:39,349 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:39,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:39,349 INFO L85 PathProgramCache]: Analyzing trace with hash -523435746, now seen corresponding path program 1 times [2024-11-08 14:49:39,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:39,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660889515] [2024-11-08 14:49:39,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:39,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 14:49:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:49:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:49:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:39,820 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 14:49:39,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:39,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660889515] [2024-11-08 14:49:39,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660889515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:39,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:49:39,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 14:49:39,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617435259] [2024-11-08 14:49:39,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:39,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 14:49:39,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:39,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 14:49:39,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:49:39,822 INFO L87 Difference]: Start difference. First operand 2168 states and 3606 transitions. Second operand has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:49:46,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:46,049 INFO L93 Difference]: Finished difference Result 5447 states and 9355 transitions. [2024-11-08 14:49:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 14:49:46,049 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 141 [2024-11-08 14:49:46,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:46,065 INFO L225 Difference]: With dead ends: 5447 [2024-11-08 14:49:46,066 INFO L226 Difference]: Without dead ends: 3325 [2024-11-08 14:49:46,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=115, Invalid=587, Unknown=0, NotChecked=0, Total=702 [2024-11-08 14:49:46,073 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 1007 mSDsluCounter, 4001 mSDsCounter, 0 mSdLazyCounter, 7767 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 4458 SdHoareTripleChecker+Invalid, 7983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 7767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:46,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 4458 Invalid, 7983 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [216 Valid, 7767 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-08 14:49:46,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2024-11-08 14:49:46,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 2248. [2024-11-08 14:49:46,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2248 states, 1746 states have (on average 1.629438717067583) internal successors, (2845), 1822 states have internal predecessors, (2845), 406 states have call successors, (406), 77 states have call predecessors, (406), 95 states have return successors, (486), 408 states have call predecessors, (486), 401 states have call successors, (486) [2024-11-08 14:49:46,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2248 states to 2248 states and 3737 transitions. [2024-11-08 14:49:46,467 INFO L78 Accepts]: Start accepts. Automaton has 2248 states and 3737 transitions. Word has length 141 [2024-11-08 14:49:46,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:46,467 INFO L471 AbstractCegarLoop]: Abstraction has 2248 states and 3737 transitions. [2024-11-08 14:49:46,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.833333333333334) internal successors, (106), 8 states have internal predecessors, (106), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 14:49:46,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2248 states and 3737 transitions. [2024-11-08 14:49:46,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-08 14:49:46,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:46,471 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:46,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 14:49:46,472 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:46,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:46,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1271137707, now seen corresponding path program 1 times [2024-11-08 14:49:46,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:46,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521847061] [2024-11-08 14:49:46,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:46,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 14:49:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:49:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 14:49:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:49:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 14:49:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:46,876 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 14:49:46,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:46,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521847061] [2024-11-08 14:49:46,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521847061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:46,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:49:46,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:49:46,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245598253] [2024-11-08 14:49:46,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:46,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:49:46,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:46,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:49:46,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:49:46,878 INFO L87 Difference]: Start difference. First operand 2248 states and 3737 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:50,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:50,649 INFO L93 Difference]: Finished difference Result 3789 states and 6351 transitions. [2024-11-08 14:49:50,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:49:50,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 145 [2024-11-08 14:49:50,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:50,658 INFO L225 Difference]: With dead ends: 3789 [2024-11-08 14:49:50,658 INFO L226 Difference]: Without dead ends: 1555 [2024-11-08 14:49:50,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:49:50,663 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 953 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 3041 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 3242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 3041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:50,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1787 Invalid, 3242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 3041 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 14:49:50,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2024-11-08 14:49:50,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1039. [2024-11-08 14:49:50,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 827 states have (on average 1.6239419588875454) internal successors, (1343), 860 states have internal predecessors, (1343), 167 states have call successors, (167), 42 states have call predecessors, (167), 44 states have return successors, (179), 161 states have call predecessors, (179), 162 states have call successors, (179) [2024-11-08 14:49:50,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1689 transitions. [2024-11-08 14:49:50,826 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1689 transitions. Word has length 145 [2024-11-08 14:49:50,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:50,826 INFO L471 AbstractCegarLoop]: Abstraction has 1039 states and 1689 transitions. [2024-11-08 14:49:50,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:50,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1689 transitions. [2024-11-08 14:49:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 14:49:50,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:50,828 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:50,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 14:49:50,828 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:50,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash -829824043, now seen corresponding path program 1 times [2024-11-08 14:49:50,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:50,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474665308] [2024-11-08 14:49:50,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:50,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:49:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 14:49:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 14:49:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 14:49:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,308 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 14:49:51,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:51,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474665308] [2024-11-08 14:49:51,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474665308] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:51,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311620650] [2024-11-08 14:49:51,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:51,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:51,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:51,310 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:51,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-08 14:49:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:51,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 14:49:51,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:49:51,590 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:51,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311620650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:51,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:51,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 10 [2024-11-08 14:49:51,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287518832] [2024-11-08 14:49:51,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:51,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 14:49:51,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:51,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 14:49:51,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:51,591 INFO L87 Difference]: Start difference. First operand 1039 states and 1689 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:52,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:52,021 INFO L93 Difference]: Finished difference Result 2751 states and 4559 transitions. [2024-11-08 14:49:52,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 14:49:52,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 146 [2024-11-08 14:49:52,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:52,028 INFO L225 Difference]: With dead ends: 2751 [2024-11-08 14:49:52,029 INFO L226 Difference]: Without dead ends: 1829 [2024-11-08 14:49:52,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:49:52,031 INFO L432 NwaCegarLoop]: 956 mSDtfsCounter, 801 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:52,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1636 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:52,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2024-11-08 14:49:52,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1814. [2024-11-08 14:49:52,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1429 states have (on average 1.6235129461161653) internal successors, (2320), 1487 states have internal predecessors, (2320), 306 states have call successors, (306), 76 states have call predecessors, (306), 78 states have return successors, (339), 299 states have call predecessors, (339), 301 states have call successors, (339) [2024-11-08 14:49:52,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2965 transitions. [2024-11-08 14:49:52,266 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2965 transitions. Word has length 146 [2024-11-08 14:49:52,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:52,266 INFO L471 AbstractCegarLoop]: Abstraction has 1814 states and 2965 transitions. [2024-11-08 14:49:52,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:49:52,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2965 transitions. [2024-11-08 14:49:52,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 14:49:52,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:52,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:52,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-08 14:49:52,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:52,470 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:52,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:52,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1981015361, now seen corresponding path program 1 times [2024-11-08 14:49:52,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:52,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515584570] [2024-11-08 14:49:52,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:52,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:52,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:52,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:52,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:52,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:52,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:52,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:52,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:49:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:52,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:52,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:52,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:53,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:49:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:53,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:49:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:53,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 14:49:53,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:53,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:49:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:53,017 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 14:49:53,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:53,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515584570] [2024-11-08 14:49:53,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515584570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:53,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924945623] [2024-11-08 14:49:53,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:53,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:53,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:53,019 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:53,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-08 14:49:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:53,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 1888 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 14:49:53,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:53,311 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:49:53,311 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:53,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924945623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:53,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:53,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2024-11-08 14:49:53,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196099652] [2024-11-08 14:49:53,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:53,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 14:49:53,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:53,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 14:49:53,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:53,313 INFO L87 Difference]: Start difference. First operand 1814 states and 2965 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 14:49:53,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:53,836 INFO L93 Difference]: Finished difference Result 5067 states and 8411 transitions. [2024-11-08 14:49:53,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 14:49:53,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 151 [2024-11-08 14:49:53,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:53,849 INFO L225 Difference]: With dead ends: 5067 [2024-11-08 14:49:53,850 INFO L226 Difference]: Without dead ends: 3383 [2024-11-08 14:49:53,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:49:53,854 INFO L432 NwaCegarLoop]: 824 mSDtfsCounter, 863 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:53,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1470 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:49:53,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-11-08 14:49:54,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3365. [2024-11-08 14:49:54,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3365 states, 2634 states have (on average 1.635155656795748) internal successors, (4307), 2746 states have internal predecessors, (4307), 584 states have call successors, (584), 144 states have call predecessors, (584), 146 states have return successors, (672), 572 states have call predecessors, (672), 579 states have call successors, (672) [2024-11-08 14:49:54,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3365 states to 3365 states and 5563 transitions. [2024-11-08 14:49:54,329 INFO L78 Accepts]: Start accepts. Automaton has 3365 states and 5563 transitions. Word has length 151 [2024-11-08 14:49:54,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:54,329 INFO L471 AbstractCegarLoop]: Abstraction has 3365 states and 5563 transitions. [2024-11-08 14:49:54,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-08 14:49:54,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3365 states and 5563 transitions. [2024-11-08 14:49:54,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-08 14:49:54,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:54,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:54,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-08 14:49:54,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-08 14:49:54,533 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:54,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:54,533 INFO L85 PathProgramCache]: Analyzing trace with hash 781961063, now seen corresponding path program 1 times [2024-11-08 14:49:54,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:54,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966612483] [2024-11-08 14:49:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:54,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:54,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:54,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:54,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:54,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:54,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:54,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:49:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:54,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:55,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:55,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:55,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:49:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:55,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 14:49:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:55,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:49:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:55,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:49:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:55,107 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 14:49:55,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:55,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966612483] [2024-11-08 14:49:55,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966612483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:49:55,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954628773] [2024-11-08 14:49:55,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:55,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:55,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:49:55,108 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:49:55,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-08 14:49:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:55,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:49:55,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:49:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 14:49:55,434 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:49:55,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954628773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:55,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:49:55,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-11-08 14:49:55,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510419118] [2024-11-08 14:49:55,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:55,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:49:55,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:55,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:49:55,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:49:55,435 INFO L87 Difference]: Start difference. First operand 3365 states and 5563 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 14:49:55,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:49:55,967 INFO L93 Difference]: Finished difference Result 6071 states and 10173 transitions. [2024-11-08 14:49:55,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:49:55,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 154 [2024-11-08 14:49:55,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:49:55,981 INFO L225 Difference]: With dead ends: 6071 [2024-11-08 14:49:55,982 INFO L226 Difference]: Without dead ends: 3383 [2024-11-08 14:49:56,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:49:56,025 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 310 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 2469 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:49:56,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 2469 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:49:56,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-11-08 14:49:56,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3365. [2024-11-08 14:49:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3365 states, 2634 states have (on average 1.6287015945330297) internal successors, (4290), 2746 states have internal predecessors, (4290), 584 states have call successors, (584), 144 states have call predecessors, (584), 146 states have return successors, (672), 572 states have call predecessors, (672), 579 states have call successors, (672) [2024-11-08 14:49:56,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3365 states to 3365 states and 5546 transitions. [2024-11-08 14:49:56,616 INFO L78 Accepts]: Start accepts. Automaton has 3365 states and 5546 transitions. Word has length 154 [2024-11-08 14:49:56,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:49:56,616 INFO L471 AbstractCegarLoop]: Abstraction has 3365 states and 5546 transitions. [2024-11-08 14:49:56,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 14:49:56,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3365 states and 5546 transitions. [2024-11-08 14:49:56,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-08 14:49:56,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:49:56,618 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:49:56,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-08 14:49:56,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:49:56,819 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:49:56,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:49:56,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1483267705, now seen corresponding path program 1 times [2024-11-08 14:49:56,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:49:56,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291864901] [2024-11-08 14:49:56,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:49:56,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:49:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:49:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:49:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:49:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:49:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:49:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:49:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:49:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:49:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 14:49:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:49:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 14:49:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 14:49:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:49:57,405 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-08 14:49:57,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:49:57,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291864901] [2024-11-08 14:49:57,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291864901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:49:57,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:49:57,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 14:49:57,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132239165] [2024-11-08 14:49:57,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:49:57,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 14:49:57,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:49:57,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 14:49:57,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:49:57,408 INFO L87 Difference]: Start difference. First operand 3365 states and 5546 transitions. Second operand has 11 states, 10 states have (on average 11.0) internal successors, (110), 7 states have internal predecessors, (110), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-08 14:50:06,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:06,974 INFO L93 Difference]: Finished difference Result 9018 states and 15887 transitions. [2024-11-08 14:50:06,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-08 14:50:06,974 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.0) internal successors, (110), 7 states have internal predecessors, (110), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 156 [2024-11-08 14:50:06,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:07,002 INFO L225 Difference]: With dead ends: 9018 [2024-11-08 14:50:07,002 INFO L226 Difference]: Without dead ends: 6477 [2024-11-08 14:50:07,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=216, Invalid=840, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 14:50:07,013 INFO L432 NwaCegarLoop]: 514 mSDtfsCounter, 3419 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 6097 mSolverCounterSat, 1012 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3487 SdHoareTripleChecker+Valid, 3689 SdHoareTripleChecker+Invalid, 7109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1012 IncrementalHoareTripleChecker+Valid, 6097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:07,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3487 Valid, 3689 Invalid, 7109 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1012 Valid, 6097 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-08 14:50:07,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6477 states. [2024-11-08 14:50:07,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6477 to 4520. [2024-11-08 14:50:07,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4520 states, 3534 states have (on average 1.617430673457838) internal successors, (5716), 3691 states have internal predecessors, (5716), 767 states have call successors, (767), 191 states have call predecessors, (767), 218 states have return successors, (971), 757 states have call predecessors, (971), 762 states have call successors, (971) [2024-11-08 14:50:07,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 7454 transitions. [2024-11-08 14:50:07,768 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 7454 transitions. Word has length 156 [2024-11-08 14:50:07,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:07,768 INFO L471 AbstractCegarLoop]: Abstraction has 4520 states and 7454 transitions. [2024-11-08 14:50:07,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.0) internal successors, (110), 7 states have internal predecessors, (110), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-08 14:50:07,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 7454 transitions. [2024-11-08 14:50:07,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-08 14:50:07,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:07,771 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:07,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 14:50:07,771 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:07,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:07,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1919000043, now seen corresponding path program 1 times [2024-11-08 14:50:07,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:07,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93333812] [2024-11-08 14:50:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:07,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:07,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:07,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:07,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:50:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:07,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:50:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:07,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:07,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:50:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:08,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:50:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:08,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:08,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:08,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:50:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:08,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:50:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:08,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:50:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:08,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 14:50:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:08,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:50:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:08,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 14:50:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:08,261 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 14:50:08,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:08,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93333812] [2024-11-08 14:50:08,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93333812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:50:08,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623255780] [2024-11-08 14:50:08,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:08,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:50:08,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:50:08,263 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:50:08,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-08 14:50:08,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:08,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 1908 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:50:08,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:50:08,589 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 14:50:08,589 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:50:08,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623255780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:08,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:50:08,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-08 14:50:08,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68888121] [2024-11-08 14:50:08,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:08,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:50:08,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:08,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:50:08,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:50:08,590 INFO L87 Difference]: Start difference. First operand 4520 states and 7454 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 14:50:09,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:09,353 INFO L93 Difference]: Finished difference Result 8972 states and 15030 transitions. [2024-11-08 14:50:09,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:50:09,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 158 [2024-11-08 14:50:09,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:09,375 INFO L225 Difference]: With dead ends: 8972 [2024-11-08 14:50:09,375 INFO L226 Difference]: Without dead ends: 4570 [2024-11-08 14:50:09,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:50:09,388 INFO L432 NwaCegarLoop]: 850 mSDtfsCounter, 14 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:09,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2516 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:50:09,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2024-11-08 14:50:10,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4570. [2024-11-08 14:50:10,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4570 states, 3574 states have (on average 1.6074426412982652) internal successors, (5745), 3736 states have internal predecessors, (5745), 767 states have call successors, (767), 196 states have call predecessors, (767), 228 states have return successors, (981), 757 states have call predecessors, (981), 762 states have call successors, (981) [2024-11-08 14:50:10,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4570 states to 4570 states and 7493 transitions. [2024-11-08 14:50:10,184 INFO L78 Accepts]: Start accepts. Automaton has 4570 states and 7493 transitions. Word has length 158 [2024-11-08 14:50:10,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:10,184 INFO L471 AbstractCegarLoop]: Abstraction has 4570 states and 7493 transitions. [2024-11-08 14:50:10,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 14:50:10,185 INFO L276 IsEmpty]: Start isEmpty. Operand 4570 states and 7493 transitions. [2024-11-08 14:50:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 14:50:10,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:10,188 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:10,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-08 14:50:10,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:50:10,388 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:10,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:10,389 INFO L85 PathProgramCache]: Analyzing trace with hash 788346076, now seen corresponding path program 1 times [2024-11-08 14:50:10,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:10,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257506310] [2024-11-08 14:50:10,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:10,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:50:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:50:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:50:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:50:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:50:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:50:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:50:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:50:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:50:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:50:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:10,984 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 14:50:10,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:10,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257506310] [2024-11-08 14:50:10,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257506310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:10,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:10,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 14:50:10,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745610654] [2024-11-08 14:50:10,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:10,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 14:50:10,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:10,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 14:50:10,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:50:10,986 INFO L87 Difference]: Start difference. First operand 4570 states and 7493 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 7 states have internal predecessors, (111), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-08 14:50:19,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:19,282 INFO L93 Difference]: Finished difference Result 10336 states and 17605 transitions. [2024-11-08 14:50:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 14:50:19,283 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 7 states have internal predecessors, (111), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 159 [2024-11-08 14:50:19,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:19,309 INFO L225 Difference]: With dead ends: 10336 [2024-11-08 14:50:19,309 INFO L226 Difference]: Without dead ends: 6594 [2024-11-08 14:50:19,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2024-11-08 14:50:19,319 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 3356 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 5176 mSolverCounterSat, 1021 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3421 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 6197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1021 IncrementalHoareTripleChecker+Valid, 5176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:19,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3421 Valid, 2790 Invalid, 6197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1021 Valid, 5176 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-08 14:50:19,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6594 states. [2024-11-08 14:50:20,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6594 to 4931. [2024-11-08 14:50:20,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4931 states, 3867 states have (on average 1.5877941556762347) internal successors, (6140), 4028 states have internal predecessors, (6140), 806 states have call successors, (806), 229 states have call predecessors, (806), 257 states have return successors, (1039), 793 states have call predecessors, (1039), 801 states have call successors, (1039) [2024-11-08 14:50:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4931 states to 4931 states and 7985 transitions. [2024-11-08 14:50:20,182 INFO L78 Accepts]: Start accepts. Automaton has 4931 states and 7985 transitions. Word has length 159 [2024-11-08 14:50:20,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:20,182 INFO L471 AbstractCegarLoop]: Abstraction has 4931 states and 7985 transitions. [2024-11-08 14:50:20,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 7 states have internal predecessors, (111), 4 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-08 14:50:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 4931 states and 7985 transitions. [2024-11-08 14:50:20,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-08 14:50:20,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:20,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:20,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-08 14:50:20,185 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:20,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:20,185 INFO L85 PathProgramCache]: Analyzing trace with hash 574028592, now seen corresponding path program 1 times [2024-11-08 14:50:20,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:20,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530878452] [2024-11-08 14:50:20,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:20,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:50:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:50:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:50:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:50:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:50:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:50:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 14:50:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 14:50:20,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 14:50:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:50:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:50:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 14:50:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,651 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-08 14:50:20,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:20,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530878452] [2024-11-08 14:50:20,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530878452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:50:20,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392739411] [2024-11-08 14:50:20,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:20,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:50:20,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:50:20,653 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:50:20,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-08 14:50:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:20,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 14:50:20,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:50:20,968 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-08 14:50:20,968 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:50:20,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392739411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:20,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:50:20,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 14:50:20,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127487458] [2024-11-08 14:50:20,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:20,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 14:50:20,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:20,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 14:50:20,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:50:20,969 INFO L87 Difference]: Start difference. First operand 4931 states and 7985 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 14:50:22,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:22,144 INFO L93 Difference]: Finished difference Result 11185 states and 18201 transitions. [2024-11-08 14:50:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 14:50:22,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 166 [2024-11-08 14:50:22,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:22,167 INFO L225 Difference]: With dead ends: 11185 [2024-11-08 14:50:22,168 INFO L226 Difference]: Without dead ends: 7091 [2024-11-08 14:50:22,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:50:22,175 INFO L432 NwaCegarLoop]: 1469 mSDtfsCounter, 745 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 2324 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:22,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 2324 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:50:22,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2024-11-08 14:50:23,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 6999. [2024-11-08 14:50:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6999 states, 5498 states have (on average 1.5862131684248817) internal successors, (8721), 5725 states have internal predecessors, (8721), 1131 states have call successors, (1131), 319 states have call predecessors, (1131), 369 states have return successors, (1474), 1122 states have call predecessors, (1474), 1126 states have call successors, (1474) [2024-11-08 14:50:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6999 states to 6999 states and 11326 transitions. [2024-11-08 14:50:23,319 INFO L78 Accepts]: Start accepts. Automaton has 6999 states and 11326 transitions. Word has length 166 [2024-11-08 14:50:23,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:23,319 INFO L471 AbstractCegarLoop]: Abstraction has 6999 states and 11326 transitions. [2024-11-08 14:50:23,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 14:50:23,319 INFO L276 IsEmpty]: Start isEmpty. Operand 6999 states and 11326 transitions. [2024-11-08 14:50:23,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-08 14:50:23,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:23,322 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:23,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-08 14:50:23,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-08 14:50:23,522 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:23,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:23,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1829549014, now seen corresponding path program 1 times [2024-11-08 14:50:23,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:23,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721389942] [2024-11-08 14:50:23,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:23,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:23,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:23,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:23,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:50:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:23,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-08 14:50:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:23,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:23,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:50:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:50:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:50:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:50:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:50:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:50:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:50:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 14:50:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 14:50:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-08 14:50:24,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:24,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721389942] [2024-11-08 14:50:24,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721389942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:50:24,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993167156] [2024-11-08 14:50:24,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:24,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:50:24,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:50:24,160 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:50:24,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-08 14:50:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:24,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-08 14:50:24,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:50:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 14:50:24,561 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:50:24,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993167156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:24,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:50:24,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2024-11-08 14:50:24,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838785336] [2024-11-08 14:50:24,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:24,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 14:50:24,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:24,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 14:50:24,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:50:24,562 INFO L87 Difference]: Start difference. First operand 6999 states and 11326 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 14:50:28,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:28,042 INFO L93 Difference]: Finished difference Result 21291 states and 34871 transitions. [2024-11-08 14:50:28,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:50:28,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 164 [2024-11-08 14:50:28,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:28,092 INFO L225 Difference]: With dead ends: 21291 [2024-11-08 14:50:28,092 INFO L226 Difference]: Without dead ends: 14414 [2024-11-08 14:50:28,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:50:28,110 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 1944 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:28,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 664 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 14:50:28,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14414 states.