./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product20.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 e1240a0d3e559b8971965b03cecb352351a22be921567ab044722f9bb2872bc1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:46:06,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:46:06,103 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:46:06,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:46:06,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:46:06,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:46:06,140 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:46:06,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:46:06,142 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:46:06,143 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:46:06,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:46:06,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:46:06,143 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:46:06,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:46:06,144 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:46:06,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:46:06,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:46:06,145 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:46:06,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:46:06,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:46:06,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:46:06,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:46:06,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:46:06,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:46:06,149 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:46:06,149 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:46:06,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:46:06,150 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:46:06,150 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:46:06,150 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:46:06,150 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:46:06,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:46:06,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:46:06,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:46:06,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:46:06,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:46:06,152 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:46:06,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:46:06,155 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:46:06,155 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:46:06,155 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:46:06,156 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:46:06,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1240a0d3e559b8971965b03cecb352351a22be921567ab044722f9bb2872bc1 [2024-11-22 01:46:06,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:46:06,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:46:06,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:46:06,467 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:46:06,467 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:46:06,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product20.cil.c [2024-11-22 01:46:07,927 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:46:08,200 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:46:08,201 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product20.cil.c [2024-11-22 01:46:08,225 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffecc72c9/fd02b978e1614ceda53c1cfa8e60f4a7/FLAG6883da1a2 [2024-11-22 01:46:08,241 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffecc72c9/fd02b978e1614ceda53c1cfa8e60f4a7 [2024-11-22 01:46:08,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:46:08,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:46:08,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:46:08,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:46:08,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:46:08,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:46:08" (1/1) ... [2024-11-22 01:46:08,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fd6137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:08, skipping insertion in model container [2024-11-22 01:46:08,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:46:08" (1/1) ... [2024-11-22 01:46:08,327 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:46:08,792 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_spec2_product20.cil.c[38445,38458] [2024-11-22 01:46:08,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:46:08,934 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:46:08,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [48] [2024-11-22 01:46:08,943 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [236] [2024-11-22 01:46:08,943 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1824] [2024-11-22 01:46:08,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1833] [2024-11-22 01:46:08,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2199] [2024-11-22 01:46:08,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2861] [2024-11-22 01:46:08,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2875] [2024-11-22 01:46:08,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2913] [2024-11-22 01:46:08,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3006] [2024-11-22 01:46:08,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3356] [2024-11-22 01:46:08,976 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_spec2_product20.cil.c[38445,38458] [2024-11-22 01:46:09,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:46:09,029 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:46:09,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09 WrapperNode [2024-11-22 01:46:09,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:46:09,030 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:46:09,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:46:09,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:46:09,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,067 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,125 INFO L138 Inliner]: procedures = 96, calls = 346, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 1133 [2024-11-22 01:46:09,129 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:46:09,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:46:09,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:46:09,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:46:09,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,154 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,199 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-22 01:46:09,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:46:09,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:46:09,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:46:09,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:46:09,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (1/1) ... [2024-11-22 01:46:09,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:46:09,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:09,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 01:46:09,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 01:46:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:46:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-22 01:46:09,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-22 01:46:09,341 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-22 01:46:09,342 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-22 01:46:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-22 01:46:09,342 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-22 01:46:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-22 01:46:09,342 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-22 01:46:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-22 01:46:09,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-22 01:46:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-22 01:46:09,343 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-22 01:46:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-22 01:46:09,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-22 01:46:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 01:46:09,343 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 01:46:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 01:46:09,344 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 01:46:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-22 01:46:09,344 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-22 01:46:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-22 01:46:09,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-22 01:46:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-22 01:46:09,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-22 01:46:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-22 01:46:09,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-22 01:46:09,346 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-22 01:46:09,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-22 01:46:09,349 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-22 01:46:09,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-22 01:46:09,349 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-22 01:46:09,349 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-22 01:46:09,349 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-22 01:46:09,349 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-22 01:46:09,349 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-22 01:46:09,349 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-22 01:46:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-22 01:46:09,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-22 01:46:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-22 01:46:09,350 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-22 01:46:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:46:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:46:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:46:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:46:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 01:46:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 01:46:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 01:46:09,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-22 01:46:09,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-22 01:46:09,351 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-22 01:46:09,351 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-22 01:46:09,352 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-22 01:46:09,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-22 01:46:09,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:46:09,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:46:09,352 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-22 01:46:09,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-22 01:46:09,352 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-11-22 01:46:09,352 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-11-22 01:46:09,552 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:46:09,556 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:46:10,574 INFO L? ?]: Removed 451 outVars from TransFormulas that were not future-live. [2024-11-22 01:46:10,574 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:46:10,602 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:46:10,603 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:46:10,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:46:10 BoogieIcfgContainer [2024-11-22 01:46:10,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:46:10,605 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:46:10,606 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:46:10,609 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:46:10,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:46:08" (1/3) ... [2024-11-22 01:46:10,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2080c698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:46:10, skipping insertion in model container [2024-11-22 01:46:10,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:46:09" (2/3) ... [2024-11-22 01:46:10,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2080c698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:46:10, skipping insertion in model container [2024-11-22 01:46:10,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:46:10" (3/3) ... [2024-11-22 01:46:10,613 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product20.cil.c [2024-11-22 01:46:10,626 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:46:10,627 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:46:10,699 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:46:10,704 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;@7089fde8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:46:10,704 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:46:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 569 states, 443 states have (on average 1.6862302483069977) internal successors, (747), 466 states have internal predecessors, (747), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 92 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-22 01:46:10,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-22 01:46:10,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:10,722 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:10,722 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:10,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:10,726 INFO L85 PathProgramCache]: Analyzing trace with hash 69269955, now seen corresponding path program 1 times [2024-11-22 01:46:10,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:10,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583500866] [2024-11-22 01:46:10,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:10,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:11,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:11,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:11,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583500866] [2024-11-22 01:46:11,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583500866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:11,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:11,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:11,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478286611] [2024-11-22 01:46:11,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:11,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:11,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:11,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:11,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:11,353 INFO L87 Difference]: Start difference. First operand has 569 states, 443 states have (on average 1.6862302483069977) internal successors, (747), 466 states have internal predecessors, (747), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 92 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:11,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:11,475 INFO L93 Difference]: Finished difference Result 1118 states and 1865 transitions. [2024-11-22 01:46:11,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:11,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2024-11-22 01:46:11,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:11,498 INFO L225 Difference]: With dead ends: 1118 [2024-11-22 01:46:11,499 INFO L226 Difference]: Without dead ends: 561 [2024-11-22 01:46:11,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:11,510 INFO L432 NwaCegarLoop]: 924 mSDtfsCounter, 5 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:11,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2768 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:11,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-22 01:46:11,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2024-11-22 01:46:11,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6819221967963387) internal successors, (735), 458 states have internal predecessors, (735), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:11,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 928 transitions. [2024-11-22 01:46:11,595 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 928 transitions. Word has length 60 [2024-11-22 01:46:11,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:11,595 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 928 transitions. [2024-11-22 01:46:11,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:11,596 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 928 transitions. [2024-11-22 01:46:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-22 01:46:11,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:11,599 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:11,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 01:46:11,599 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:11,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:11,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1582622137, now seen corresponding path program 1 times [2024-11-22 01:46:11,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:11,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103025039] [2024-11-22 01:46:11,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:11,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:11,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:11,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:11,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103025039] [2024-11-22 01:46:11,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103025039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:11,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:11,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:11,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648346042] [2024-11-22 01:46:11,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:11,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:11,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:11,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:11,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:11,739 INFO L87 Difference]: Start difference. First operand 561 states and 928 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:11,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:11,822 INFO L93 Difference]: Finished difference Result 1104 states and 1833 transitions. [2024-11-22 01:46:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:11,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-11-22 01:46:11,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:11,832 INFO L225 Difference]: With dead ends: 1104 [2024-11-22 01:46:11,839 INFO L226 Difference]: Without dead ends: 561 [2024-11-22 01:46:11,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:11,842 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 4 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:11,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2747 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:11,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-22 01:46:11,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2024-11-22 01:46:11,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6796338672768878) internal successors, (734), 458 states have internal predecessors, (734), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:11,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 927 transitions. [2024-11-22 01:46:11,886 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 927 transitions. Word has length 63 [2024-11-22 01:46:11,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:11,886 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 927 transitions. [2024-11-22 01:46:11,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:11,887 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 927 transitions. [2024-11-22 01:46:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-22 01:46:11,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:11,893 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:11,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 01:46:11,894 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:11,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:11,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1632470035, now seen corresponding path program 1 times [2024-11-22 01:46:11,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:11,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958460522] [2024-11-22 01:46:11,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:11,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:12,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:12,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:12,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958460522] [2024-11-22 01:46:12,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958460522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:12,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:12,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:12,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645904736] [2024-11-22 01:46:12,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:12,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:12,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:12,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:12,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:12,054 INFO L87 Difference]: Start difference. First operand 561 states and 927 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:12,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:12,109 INFO L93 Difference]: Finished difference Result 1104 states and 1832 transitions. [2024-11-22 01:46:12,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:12,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2024-11-22 01:46:12,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:12,113 INFO L225 Difference]: With dead ends: 1104 [2024-11-22 01:46:12,113 INFO L226 Difference]: Without dead ends: 561 [2024-11-22 01:46:12,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:12,118 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 3 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:12,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2747 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:12,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-22 01:46:12,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2024-11-22 01:46:12,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.677345537757437) internal successors, (733), 458 states have internal predecessors, (733), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:12,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 926 transitions. [2024-11-22 01:46:12,147 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 926 transitions. Word has length 64 [2024-11-22 01:46:12,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:12,148 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 926 transitions. [2024-11-22 01:46:12,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:12,148 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 926 transitions. [2024-11-22 01:46:12,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 01:46:12,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:12,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:12,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 01:46:12,152 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:12,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:12,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2079372939, now seen corresponding path program 1 times [2024-11-22 01:46:12,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:12,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791844079] [2024-11-22 01:46:12,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:12,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:12,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:12,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:12,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791844079] [2024-11-22 01:46:12,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791844079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:12,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:12,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:12,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791076536] [2024-11-22 01:46:12,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:12,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:12,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:12,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:12,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:12,256 INFO L87 Difference]: Start difference. First operand 561 states and 926 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:12,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:12,325 INFO L93 Difference]: Finished difference Result 1104 states and 1831 transitions. [2024-11-22 01:46:12,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:12,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-22 01:46:12,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:12,330 INFO L225 Difference]: With dead ends: 1104 [2024-11-22 01:46:12,330 INFO L226 Difference]: Without dead ends: 561 [2024-11-22 01:46:12,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:12,335 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 2 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:12,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2747 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:12,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-22 01:46:12,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2024-11-22 01:46:12,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6750572082379862) internal successors, (732), 458 states have internal predecessors, (732), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:12,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 925 transitions. [2024-11-22 01:46:12,362 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 925 transitions. Word has length 65 [2024-11-22 01:46:12,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:12,362 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 925 transitions. [2024-11-22 01:46:12,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:12,364 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 925 transitions. [2024-11-22 01:46:12,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 01:46:12,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:12,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:12,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 01:46:12,366 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:12,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:12,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2144548657, now seen corresponding path program 1 times [2024-11-22 01:46:12,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:12,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182234808] [2024-11-22 01:46:12,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:12,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:12,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:12,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:12,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182234808] [2024-11-22 01:46:12,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182234808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:12,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:12,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:12,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065725292] [2024-11-22 01:46:12,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:12,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:12,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:12,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:12,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:12,496 INFO L87 Difference]: Start difference. First operand 561 states and 925 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:12,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:12,538 INFO L93 Difference]: Finished difference Result 1104 states and 1830 transitions. [2024-11-22 01:46:12,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:12,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-22 01:46:12,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:12,544 INFO L225 Difference]: With dead ends: 1104 [2024-11-22 01:46:12,544 INFO L226 Difference]: Without dead ends: 561 [2024-11-22 01:46:12,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:12,548 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 1 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:12,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2747 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:12,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-11-22 01:46:12,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2024-11-22 01:46:12,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6727688787185355) internal successors, (731), 458 states have internal predecessors, (731), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:12,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 924 transitions. [2024-11-22 01:46:12,570 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 924 transitions. Word has length 66 [2024-11-22 01:46:12,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:12,570 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 924 transitions. [2024-11-22 01:46:12,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:12,570 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 924 transitions. [2024-11-22 01:46:12,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 01:46:12,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:12,572 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:12,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 01:46:12,572 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:12,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:12,573 INFO L85 PathProgramCache]: Analyzing trace with hash -832189135, now seen corresponding path program 1 times [2024-11-22 01:46:12,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:12,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482399837] [2024-11-22 01:46:12,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:12,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:12,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:12,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:12,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482399837] [2024-11-22 01:46:12,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482399837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:12,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:12,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 01:46:12,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556297173] [2024-11-22 01:46:12,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:12,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 01:46:12,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:12,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 01:46:12,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:46:12,789 INFO L87 Difference]: Start difference. First operand 561 states and 924 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:46:12,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:12,890 INFO L93 Difference]: Finished difference Result 1070 states and 1762 transitions. [2024-11-22 01:46:12,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:46:12,891 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2024-11-22 01:46:12,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:12,895 INFO L225 Difference]: With dead ends: 1070 [2024-11-22 01:46:12,895 INFO L226 Difference]: Without dead ends: 576 [2024-11-22 01:46:12,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:46:12,898 INFO L432 NwaCegarLoop]: 912 mSDtfsCounter, 91 mSDsluCounter, 6301 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 7213 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:12,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 7213 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:46:12,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-22 01:46:12,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 574. [2024-11-22 01:46:12,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 447 states have (on average 1.6689038031319912) internal successors, (746), 470 states have internal predecessors, (746), 100 states have call successors, (100), 25 states have call predecessors, (100), 26 states have return successors, (97), 92 states have call predecessors, (97), 95 states have call successors, (97) [2024-11-22 01:46:12,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 943 transitions. [2024-11-22 01:46:12,922 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 943 transitions. Word has length 67 [2024-11-22 01:46:12,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:12,922 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 943 transitions. [2024-11-22 01:46:12,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:46:12,922 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 943 transitions. [2024-11-22 01:46:12,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 01:46:12,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:12,925 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:12,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:46:12,925 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:12,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1072729264, now seen corresponding path program 1 times [2024-11-22 01:46:12,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:12,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415917127] [2024-11-22 01:46:12,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:12,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:13,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415917127] [2024-11-22 01:46:13,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415917127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:13,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:13,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:46:13,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470557529] [2024-11-22 01:46:13,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:13,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:13,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:13,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:13,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:13,035 INFO L87 Difference]: Start difference. First operand 574 states and 943 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:13,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:13,074 INFO L93 Difference]: Finished difference Result 1122 states and 1856 transitions. [2024-11-22 01:46:13,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:46:13,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2024-11-22 01:46:13,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:13,078 INFO L225 Difference]: With dead ends: 1122 [2024-11-22 01:46:13,078 INFO L226 Difference]: Without dead ends: 555 [2024-11-22 01:46:13,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:46:13,081 INFO L432 NwaCegarLoop]: 918 mSDtfsCounter, 0 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:13,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2749 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:13,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-22 01:46:13,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-22 01:46:13,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 431 states have (on average 1.6635730858468678) internal successors, (717), 452 states have internal predecessors, (717), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:13,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 910 transitions. [2024-11-22 01:46:13,095 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 910 transitions. Word has length 67 [2024-11-22 01:46:13,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:13,095 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 910 transitions. [2024-11-22 01:46:13,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:13,095 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 910 transitions. [2024-11-22 01:46:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 01:46:13,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:13,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:13,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:46:13,097 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:13,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:13,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1969596338, now seen corresponding path program 1 times [2024-11-22 01:46:13,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:13,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918751198] [2024-11-22 01:46:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:13,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:13,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:13,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:13,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918751198] [2024-11-22 01:46:13,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918751198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:13,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:13,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:13,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444281330] [2024-11-22 01:46:13,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:13,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:13,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:13,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:13,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:13,221 INFO L87 Difference]: Start difference. First operand 555 states and 910 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:13,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:13,424 INFO L93 Difference]: Finished difference Result 1067 states and 1754 transitions. [2024-11-22 01:46:13,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:13,425 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-22 01:46:13,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:13,429 INFO L225 Difference]: With dead ends: 1067 [2024-11-22 01:46:13,429 INFO L226 Difference]: Without dead ends: 564 [2024-11-22 01:46:13,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:13,431 INFO L432 NwaCegarLoop]: 867 mSDtfsCounter, 55 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:13,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4306 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 01:46:13,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-22 01:46:13,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 555. [2024-11-22 01:46:13,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 431 states have (on average 1.654292343387471) internal successors, (713), 452 states have internal predecessors, (713), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:13,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 906 transitions. [2024-11-22 01:46:13,445 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 906 transitions. Word has length 68 [2024-11-22 01:46:13,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:13,446 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 906 transitions. [2024-11-22 01:46:13,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:13,446 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 906 transitions. [2024-11-22 01:46:13,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 01:46:13,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:13,447 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:13,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:46:13,447 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:13,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:13,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1172604276, now seen corresponding path program 1 times [2024-11-22 01:46:13,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:13,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398186932] [2024-11-22 01:46:13,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:13,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:13,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:13,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398186932] [2024-11-22 01:46:13,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398186932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:13,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:13,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:13,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719669371] [2024-11-22 01:46:13,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:13,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:13,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:13,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:13,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:13,550 INFO L87 Difference]: Start difference. First operand 555 states and 906 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:13,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:13,685 INFO L93 Difference]: Finished difference Result 1067 states and 1750 transitions. [2024-11-22 01:46:13,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:13,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2024-11-22 01:46:13,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:13,689 INFO L225 Difference]: With dead ends: 1067 [2024-11-22 01:46:13,689 INFO L226 Difference]: Without dead ends: 564 [2024-11-22 01:46:13,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:13,691 INFO L432 NwaCegarLoop]: 867 mSDtfsCounter, 54 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4306 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:13,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4306 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:46:13,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-22 01:46:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 555. [2024-11-22 01:46:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 431 states have (on average 1.6450116009280742) internal successors, (709), 452 states have internal predecessors, (709), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:13,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 902 transitions. [2024-11-22 01:46:13,705 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 902 transitions. Word has length 69 [2024-11-22 01:46:13,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:13,705 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 902 transitions. [2024-11-22 01:46:13,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:13,706 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 902 transitions. [2024-11-22 01:46:13,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-22 01:46:13,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:13,706 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:13,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:46:13,707 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:13,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:13,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1848059603, now seen corresponding path program 1 times [2024-11-22 01:46:13,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:13,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813620868] [2024-11-22 01:46:13,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:13,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:13,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:13,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:13,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813620868] [2024-11-22 01:46:13,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813620868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:13,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:13,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:13,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172094125] [2024-11-22 01:46:13,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:13,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:13,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:13,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:13,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:13,817 INFO L87 Difference]: Start difference. First operand 555 states and 902 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:13,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:13,957 INFO L93 Difference]: Finished difference Result 1067 states and 1746 transitions. [2024-11-22 01:46:13,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:13,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-22 01:46:13,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:13,962 INFO L225 Difference]: With dead ends: 1067 [2024-11-22 01:46:13,962 INFO L226 Difference]: Without dead ends: 564 [2024-11-22 01:46:13,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:13,964 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 53 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:13,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4288 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:46:13,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-22 01:46:13,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 555. [2024-11-22 01:46:13,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 431 states have (on average 1.6357308584686774) internal successors, (705), 452 states have internal predecessors, (705), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:13,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 898 transitions. [2024-11-22 01:46:13,978 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 898 transitions. Word has length 70 [2024-11-22 01:46:13,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:13,979 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 898 transitions. [2024-11-22 01:46:13,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:13,980 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 898 transitions. [2024-11-22 01:46:13,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-22 01:46:13,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:13,981 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:13,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:46:13,981 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:13,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:13,982 INFO L85 PathProgramCache]: Analyzing trace with hash -181173421, now seen corresponding path program 1 times [2024-11-22 01:46:13,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:13,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808508993] [2024-11-22 01:46:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:13,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:14,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:14,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808508993] [2024-11-22 01:46:14,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808508993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:14,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:14,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:46:14,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126134649] [2024-11-22 01:46:14,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:14,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:46:14,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:14,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:46:14,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:14,132 INFO L87 Difference]: Start difference. First operand 555 states and 898 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:46:14,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:14,181 INFO L93 Difference]: Finished difference Result 1058 states and 1728 transitions. [2024-11-22 01:46:14,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:46:14,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2024-11-22 01:46:14,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:14,186 INFO L225 Difference]: With dead ends: 1058 [2024-11-22 01:46:14,186 INFO L226 Difference]: Without dead ends: 534 [2024-11-22 01:46:14,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:46:14,188 INFO L432 NwaCegarLoop]: 887 mSDtfsCounter, 84 mSDsluCounter, 4362 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5249 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:14,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5249 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:14,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-22 01:46:14,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2024-11-22 01:46:14,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 410 states have (on average 1.6365853658536584) internal successors, (671), 431 states have internal predecessors, (671), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 864 transitions. [2024-11-22 01:46:14,203 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 864 transitions. Word has length 70 [2024-11-22 01:46:14,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:14,204 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 864 transitions. [2024-11-22 01:46:14,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:46:14,204 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 864 transitions. [2024-11-22 01:46:14,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 01:46:14,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:14,205 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:14,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 01:46:14,206 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:14,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:14,206 INFO L85 PathProgramCache]: Analyzing trace with hash -931144935, now seen corresponding path program 1 times [2024-11-22 01:46:14,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:14,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349672782] [2024-11-22 01:46:14,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:14,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:14,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:14,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:14,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349672782] [2024-11-22 01:46:14,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349672782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:14,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:14,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:14,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196915184] [2024-11-22 01:46:14,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:14,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:14,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:14,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:14,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:14,337 INFO L87 Difference]: Start difference. First operand 534 states and 864 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:14,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:14,416 INFO L93 Difference]: Finished difference Result 1037 states and 1694 transitions. [2024-11-22 01:46:14,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:14,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2024-11-22 01:46:14,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:14,420 INFO L225 Difference]: With dead ends: 1037 [2024-11-22 01:46:14,420 INFO L226 Difference]: Without dead ends: 534 [2024-11-22 01:46:14,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:14,423 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 17 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4226 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:14,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4226 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:14,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-22 01:46:14,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2024-11-22 01:46:14,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 410 states have (on average 1.6341463414634145) internal successors, (670), 431 states have internal predecessors, (670), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:14,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 863 transitions. [2024-11-22 01:46:14,436 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 863 transitions. Word has length 71 [2024-11-22 01:46:14,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:14,437 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 863 transitions. [2024-11-22 01:46:14,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 863 transitions. [2024-11-22 01:46:14,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 01:46:14,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:14,438 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:14,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:46:14,438 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:14,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:14,439 INFO L85 PathProgramCache]: Analyzing trace with hash 864344408, now seen corresponding path program 1 times [2024-11-22 01:46:14,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:14,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064703259] [2024-11-22 01:46:14,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:14,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:14,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:14,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:14,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064703259] [2024-11-22 01:46:14,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064703259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:14,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:14,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:14,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331666706] [2024-11-22 01:46:14,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:14,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:14,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:14,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:14,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:14,529 INFO L87 Difference]: Start difference. First operand 534 states and 863 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:14,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:14,583 INFO L93 Difference]: Finished difference Result 1037 states and 1693 transitions. [2024-11-22 01:46:14,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:14,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-22 01:46:14,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:14,586 INFO L225 Difference]: With dead ends: 1037 [2024-11-22 01:46:14,586 INFO L226 Difference]: Without dead ends: 534 [2024-11-22 01:46:14,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:46:14,588 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 16 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4226 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:14,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4226 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:14,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-22 01:46:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2024-11-22 01:46:14,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 410 states have (on average 1.6317073170731706) internal successors, (669), 431 states have internal predecessors, (669), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 862 transitions. [2024-11-22 01:46:14,600 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 862 transitions. Word has length 72 [2024-11-22 01:46:14,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:14,600 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 862 transitions. [2024-11-22 01:46:14,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-22 01:46:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 862 transitions. [2024-11-22 01:46:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 01:46:14,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:14,601 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:14,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:46:14,601 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:14,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:14,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1553544002, now seen corresponding path program 1 times [2024-11-22 01:46:14,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:14,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260372107] [2024-11-22 01:46:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:14,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:14,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:14,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:14,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260372107] [2024-11-22 01:46:14,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260372107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:14,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:14,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 01:46:14,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543945355] [2024-11-22 01:46:14,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:14,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 01:46:14,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:14,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 01:46:14,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:46:14,759 INFO L87 Difference]: Start difference. First operand 534 states and 862 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:46:14,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:14,839 INFO L93 Difference]: Finished difference Result 1031 states and 1681 transitions. [2024-11-22 01:46:14,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:46:14,840 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 73 [2024-11-22 01:46:14,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:14,844 INFO L225 Difference]: With dead ends: 1031 [2024-11-22 01:46:14,844 INFO L226 Difference]: Without dead ends: 534 [2024-11-22 01:46:14,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:46:14,846 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 6 mSDsluCounter, 6746 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7592 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:14,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7592 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:46:14,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-22 01:46:14,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2024-11-22 01:46:14,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 410 states have (on average 1.6292682926829267) internal successors, (668), 431 states have internal predecessors, (668), 99 states have call successors, (99), 25 states have call predecessors, (99), 24 states have return successors, (94), 91 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 01:46:14,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 861 transitions. [2024-11-22 01:46:14,861 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 861 transitions. Word has length 73 [2024-11-22 01:46:14,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:14,861 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 861 transitions. [2024-11-22 01:46:14,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-22 01:46:14,861 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 861 transitions. [2024-11-22 01:46:14,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 01:46:14,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:14,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:14,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:46:14,863 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:14,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:14,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1972759379, now seen corresponding path program 1 times [2024-11-22 01:46:14,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:14,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431982626] [2024-11-22 01:46:14,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:14,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:15,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:46:15,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:15,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431982626] [2024-11-22 01:46:15,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431982626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:15,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:15,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:46:15,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950619787] [2024-11-22 01:46:15,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:15,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:15,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:15,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:15,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:46:15,125 INFO L87 Difference]: Start difference. First operand 534 states and 861 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 6 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-22 01:46:17,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:17,012 INFO L93 Difference]: Finished difference Result 1660 states and 2740 transitions. [2024-11-22 01:46:17,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:17,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 6 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 74 [2024-11-22 01:46:17,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:17,020 INFO L225 Difference]: With dead ends: 1660 [2024-11-22 01:46:17,020 INFO L226 Difference]: Without dead ends: 1171 [2024-11-22 01:46:17,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:46:17,023 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 2576 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2644 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 2509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 615 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:17,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2644 Valid, 1163 Invalid, 2509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [615 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-22 01:46:17,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2024-11-22 01:46:17,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1049. [2024-11-22 01:46:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 812 states have (on average 1.6502463054187193) internal successors, (1340), 842 states have internal predecessors, (1340), 192 states have call successors, (192), 43 states have call predecessors, (192), 44 states have return successors, (194), 176 states have call predecessors, (194), 187 states have call successors, (194) [2024-11-22 01:46:17,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1726 transitions. [2024-11-22 01:46:17,104 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1726 transitions. Word has length 74 [2024-11-22 01:46:17,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:17,104 INFO L471 AbstractCegarLoop]: Abstraction has 1049 states and 1726 transitions. [2024-11-22 01:46:17,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 6 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-22 01:46:17,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1726 transitions. [2024-11-22 01:46:17,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-22 01:46:17,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:17,107 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 01:46:17,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:46:17,108 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:17,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:17,108 INFO L85 PathProgramCache]: Analyzing trace with hash -57855248, now seen corresponding path program 1 times [2024-11-22 01:46:17,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:17,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385667913] [2024-11-22 01:46:17,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:17,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:17,258 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 01:46:17,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:17,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385667913] [2024-11-22 01:46:17,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385667913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:17,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352635325] [2024-11-22 01:46:17,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:17,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:17,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:17,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:17,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:46:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:17,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 1700 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:46:17,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:17,708 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 01:46:17,708 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:17,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352635325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:17,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:17,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-22 01:46:17,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52137196] [2024-11-22 01:46:17,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:17,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:46:17,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:17,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:46:17,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:46:17,710 INFO L87 Difference]: Start difference. First operand 1049 states and 1726 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-11-22 01:46:18,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:18,100 INFO L93 Difference]: Finished difference Result 2069 states and 3474 transitions. [2024-11-22 01:46:18,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:18,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 127 [2024-11-22 01:46:18,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:18,107 INFO L225 Difference]: With dead ends: 2069 [2024-11-22 01:46:18,107 INFO L226 Difference]: Without dead ends: 1065 [2024-11-22 01:46:18,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:46:18,112 INFO L432 NwaCegarLoop]: 843 mSDtfsCounter, 815 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:18,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 2149 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:46:18,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2024-11-22 01:46:18,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1065. [2024-11-22 01:46:18,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 826 states have (on average 1.6513317191283292) internal successors, (1364), 856 states have internal predecessors, (1364), 192 states have call successors, (192), 45 states have call predecessors, (192), 46 states have return successors, (196), 176 states have call predecessors, (196), 187 states have call successors, (196) [2024-11-22 01:46:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1752 transitions. [2024-11-22 01:46:18,147 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1752 transitions. Word has length 127 [2024-11-22 01:46:18,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:18,147 INFO L471 AbstractCegarLoop]: Abstraction has 1065 states and 1752 transitions. [2024-11-22 01:46:18,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-11-22 01:46:18,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1752 transitions. [2024-11-22 01:46:18,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-22 01:46:18,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:18,151 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:18,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:46:18,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-22 01:46:18,355 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:18,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:18,356 INFO L85 PathProgramCache]: Analyzing trace with hash -691564196, now seen corresponding path program 1 times [2024-11-22 01:46:18,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:18,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150497356] [2024-11-22 01:46:18,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:18,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:18,676 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 01:46:18,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:18,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150497356] [2024-11-22 01:46:18,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150497356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:18,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:46:18,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 01:46:18,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316040821] [2024-11-22 01:46:18,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:18,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 01:46:18,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:18,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 01:46:18,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:46:18,678 INFO L87 Difference]: Start difference. First operand 1065 states and 1752 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:46:22,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:22,900 INFO L93 Difference]: Finished difference Result 3926 states and 6473 transitions. [2024-11-22 01:46:22,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 01:46:22,900 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 128 [2024-11-22 01:46:22,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:22,915 INFO L225 Difference]: With dead ends: 3926 [2024-11-22 01:46:22,915 INFO L226 Difference]: Without dead ends: 2906 [2024-11-22 01:46:22,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2024-11-22 01:46:22,921 INFO L432 NwaCegarLoop]: 754 mSDtfsCounter, 2817 mSDsluCounter, 3810 mSDsCounter, 0 mSdLazyCounter, 9511 mSolverCounterSat, 905 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 4564 SdHoareTripleChecker+Invalid, 10416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 905 IncrementalHoareTripleChecker+Valid, 9511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:22,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 4564 Invalid, 10416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [905 Valid, 9511 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-22 01:46:22,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2024-11-22 01:46:23,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2810. [2024-11-22 01:46:23,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 2109 states have (on average 1.61782835467046) internal successors, (3412), 2185 states have internal predecessors, (3412), 574 states have call successors, (574), 109 states have call predecessors, (574), 126 states have return successors, (613), 548 states have call predecessors, (613), 569 states have call successors, (613) [2024-11-22 01:46:23,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 4599 transitions. [2024-11-22 01:46:23,127 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 4599 transitions. Word has length 128 [2024-11-22 01:46:23,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:23,128 INFO L471 AbstractCegarLoop]: Abstraction has 2810 states and 4599 transitions. [2024-11-22 01:46:23,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 10 states have internal predecessors, (88), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-22 01:46:23,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 4599 transitions. [2024-11-22 01:46:23,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-22 01:46:23,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:23,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:23,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:46:23,134 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:23,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:23,135 INFO L85 PathProgramCache]: Analyzing trace with hash -187089058, now seen corresponding path program 1 times [2024-11-22 01:46:23,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:23,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933502015] [2024-11-22 01:46:23,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:23,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:23,277 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 01:46:23,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:23,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933502015] [2024-11-22 01:46:23,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933502015] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:23,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504056155] [2024-11-22 01:46:23,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:23,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:23,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:23,280 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:23,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:46:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:23,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 1702 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:46:23,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:23,675 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 01:46:23,679 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:23,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504056155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:23,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:23,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-22 01:46:23,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114057241] [2024-11-22 01:46:23,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:23,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:46:23,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:23,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:46:23,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:46:23,680 INFO L87 Difference]: Start difference. First operand 2810 states and 4599 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (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) [2024-11-22 01:46:24,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:24,227 INFO L93 Difference]: Finished difference Result 5639 states and 9384 transitions. [2024-11-22 01:46:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:24,228 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (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 129 [2024-11-22 01:46:24,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:24,242 INFO L225 Difference]: With dead ends: 5639 [2024-11-22 01:46:24,242 INFO L226 Difference]: Without dead ends: 2874 [2024-11-22 01:46:24,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:46:24,257 INFO L432 NwaCegarLoop]: 840 mSDtfsCounter, 809 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 2146 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:24,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 2146 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 01:46:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2874 states. [2024-11-22 01:46:24,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2874 to 2874. [2024-11-22 01:46:24,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2165 states have (on average 1.620323325635104) internal successors, (3508), 2241 states have internal predecessors, (3508), 574 states have call successors, (574), 117 states have call predecessors, (574), 134 states have return successors, (619), 548 states have call predecessors, (619), 569 states have call successors, (619) [2024-11-22 01:46:24,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 4701 transitions. [2024-11-22 01:46:24,408 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 4701 transitions. Word has length 129 [2024-11-22 01:46:24,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:24,409 INFO L471 AbstractCegarLoop]: Abstraction has 2874 states and 4701 transitions. [2024-11-22 01:46:24,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (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) [2024-11-22 01:46:24,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 4701 transitions. [2024-11-22 01:46:24,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-22 01:46:24,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:24,412 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:24,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 01:46:24,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 01:46:24,616 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:24,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:24,617 INFO L85 PathProgramCache]: Analyzing trace with hash 109461360, now seen corresponding path program 1 times [2024-11-22 01:46:24,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:24,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788174632] [2024-11-22 01:46:24,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:24,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 01:46:24,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:24,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788174632] [2024-11-22 01:46:24,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788174632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:24,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104422121] [2024-11-22 01:46:24,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:24,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:24,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:24,723 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:24,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:46:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:24,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:46:24,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 01:46:25,093 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:25,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104422121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:25,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:25,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-22 01:46:25,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468169682] [2024-11-22 01:46:25,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:25,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:46:25,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:25,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:46:25,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:46:25,094 INFO L87 Difference]: Start difference. First operand 2874 states and 4701 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-11-22 01:46:25,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:25,514 INFO L93 Difference]: Finished difference Result 5767 states and 9570 transitions. [2024-11-22 01:46:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:25,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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 131 [2024-11-22 01:46:25,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:25,534 INFO L225 Difference]: With dead ends: 5767 [2024-11-22 01:46:25,534 INFO L226 Difference]: Without dead ends: 2938 [2024-11-22 01:46:25,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:46:25,553 INFO L432 NwaCegarLoop]: 837 mSDtfsCounter, 792 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:25,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 2143 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:46:25,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2024-11-22 01:46:25,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 2938. [2024-11-22 01:46:25,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2938 states, 2221 states have (on average 1.6226924808644754) internal successors, (3604), 2297 states have internal predecessors, (3604), 574 states have call successors, (574), 125 states have call predecessors, (574), 142 states have return successors, (625), 548 states have call predecessors, (625), 569 states have call successors, (625) [2024-11-22 01:46:25,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 4803 transitions. [2024-11-22 01:46:25,687 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 4803 transitions. Word has length 131 [2024-11-22 01:46:25,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:25,687 INFO L471 AbstractCegarLoop]: Abstraction has 2938 states and 4803 transitions. [2024-11-22 01:46:25,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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) [2024-11-22 01:46:25,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 4803 transitions. [2024-11-22 01:46:25,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-22 01:46:25,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:25,691 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:25,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 01:46:25,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:25,892 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:25,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:25,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1495549910, now seen corresponding path program 1 times [2024-11-22 01:46:25,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:25,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254698321] [2024-11-22 01:46:25,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:25,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:25,987 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 01:46:25,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:25,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254698321] [2024-11-22 01:46:25,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254698321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:25,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923939411] [2024-11-22 01:46:25,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:25,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:25,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:25,990 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:25,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:46:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:26,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:46:26,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:26,330 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 01:46:26,331 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:26,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923939411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:26,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:26,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-22 01:46:26,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066371018] [2024-11-22 01:46:26,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:26,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:46:26,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:26,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:46:26,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:46:26,334 INFO L87 Difference]: Start difference. First operand 2938 states and 4803 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (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) [2024-11-22 01:46:26,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:26,758 INFO L93 Difference]: Finished difference Result 5895 states and 9756 transitions. [2024-11-22 01:46:26,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:26,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (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 133 [2024-11-22 01:46:26,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:26,774 INFO L225 Difference]: With dead ends: 5895 [2024-11-22 01:46:26,775 INFO L226 Difference]: Without dead ends: 3002 [2024-11-22 01:46:26,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:46:26,786 INFO L432 NwaCegarLoop]: 834 mSDtfsCounter, 782 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:26,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 2140 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:46:26,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2024-11-22 01:46:26,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 3002. [2024-11-22 01:46:26,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3002 states, 2277 states have (on average 1.6249451032059727) internal successors, (3700), 2353 states have internal predecessors, (3700), 574 states have call successors, (574), 133 states have call predecessors, (574), 150 states have return successors, (631), 548 states have call predecessors, (631), 569 states have call successors, (631) [2024-11-22 01:46:26,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3002 states to 3002 states and 4905 transitions. [2024-11-22 01:46:26,936 INFO L78 Accepts]: Start accepts. Automaton has 3002 states and 4905 transitions. Word has length 133 [2024-11-22 01:46:26,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:26,937 INFO L471 AbstractCegarLoop]: Abstraction has 3002 states and 4905 transitions. [2024-11-22 01:46:26,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (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) [2024-11-22 01:46:26,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3002 states and 4905 transitions. [2024-11-22 01:46:26,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 01:46:26,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:26,940 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] [2024-11-22 01:46:26,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:46:27,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:27,141 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:27,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:27,142 INFO L85 PathProgramCache]: Analyzing trace with hash 264395248, now seen corresponding path program 1 times [2024-11-22 01:46:27,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:27,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197190717] [2024-11-22 01:46:27,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:27,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:27,391 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:46:27,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:27,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197190717] [2024-11-22 01:46:27,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197190717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:27,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794556987] [2024-11-22 01:46:27,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:27,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:27,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:27,394 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:27,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:46:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:27,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 1708 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 01:46:27,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:27,797 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 01:46:27,797 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:27,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794556987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:27,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:27,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2024-11-22 01:46:27,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231081950] [2024-11-22 01:46:27,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:27,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:46:27,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:27,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:46:27,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:46:27,800 INFO L87 Difference]: Start difference. First operand 3002 states and 4905 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:46:28,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:28,285 INFO L93 Difference]: Finished difference Result 3117 states and 5093 transitions. [2024-11-22 01:46:28,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:46:28,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 135 [2024-11-22 01:46:28,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:28,325 INFO L225 Difference]: With dead ends: 3117 [2024-11-22 01:46:28,328 INFO L226 Difference]: Without dead ends: 3102 [2024-11-22 01:46:28,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:46:28,335 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 827 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:28,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 2173 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:46:28,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2024-11-22 01:46:28,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 3011. [2024-11-22 01:46:28,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 2286 states have (on average 1.6224846894138232) internal successors, (3709), 2362 states have internal predecessors, (3709), 574 states have call successors, (574), 133 states have call predecessors, (574), 150 states have return successors, (631), 548 states have call predecessors, (631), 569 states have call successors, (631) [2024-11-22 01:46:28,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 4914 transitions. [2024-11-22 01:46:28,511 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 4914 transitions. Word has length 135 [2024-11-22 01:46:28,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:28,512 INFO L471 AbstractCegarLoop]: Abstraction has 3011 states and 4914 transitions. [2024-11-22 01:46:28,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-22 01:46:28,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 4914 transitions. [2024-11-22 01:46:28,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 01:46:28,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:28,516 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] [2024-11-22 01:46:28,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 01:46:28,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:28,717 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:28,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:28,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1887155371, now seen corresponding path program 1 times [2024-11-22 01:46:28,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:28,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830143021] [2024-11-22 01:46:28,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:28,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:28,989 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 01:46:28,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:28,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830143021] [2024-11-22 01:46:28,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830143021] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:28,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157348289] [2024-11-22 01:46:28,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:28,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:28,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:28,992 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:28,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:46:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:29,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 01:46:29,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 01:46:29,345 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:29,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157348289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:29,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:29,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2024-11-22 01:46:29,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360048755] [2024-11-22 01:46:29,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:29,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:46:29,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:29,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:46:29,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-22 01:46:29,347 INFO L87 Difference]: Start difference. First operand 3011 states and 4914 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:46:29,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:29,687 INFO L93 Difference]: Finished difference Result 3217 states and 5216 transitions. [2024-11-22 01:46:29,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:46:29,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) Word has length 141 [2024-11-22 01:46:29,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:29,702 INFO L225 Difference]: With dead ends: 3217 [2024-11-22 01:46:29,702 INFO L226 Difference]: Without dead ends: 3202 [2024-11-22 01:46:29,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-22 01:46:29,706 INFO L432 NwaCegarLoop]: 858 mSDtfsCounter, 788 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 3374 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:29,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 3374 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:46:29,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2024-11-22 01:46:29,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 3181. [2024-11-22 01:46:29,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2424 states have (on average 1.6167491749174918) internal successors, (3919), 2500 states have internal predecessors, (3919), 590 states have call successors, (590), 149 states have call predecessors, (590), 166 states have return successors, (657), 564 states have call predecessors, (657), 585 states have call successors, (657) [2024-11-22 01:46:29,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 5166 transitions. [2024-11-22 01:46:29,803 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 5166 transitions. Word has length 141 [2024-11-22 01:46:29,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:29,803 INFO L471 AbstractCegarLoop]: Abstraction has 3181 states and 5166 transitions. [2024-11-22 01:46:29,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-22 01:46:29,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 5166 transitions. [2024-11-22 01:46:29,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-22 01:46:29,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:29,807 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 01:46:29,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 01:46:30,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:30,008 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:30,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:30,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1181576029, now seen corresponding path program 1 times [2024-11-22 01:46:30,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:30,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791569460] [2024-11-22 01:46:30,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:30,287 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-22 01:46:30,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:30,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791569460] [2024-11-22 01:46:30,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791569460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:30,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644306032] [2024-11-22 01:46:30,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:30,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:30,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:30,290 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:30,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 01:46:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:30,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 1761 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-22 01:46:30,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 01:46:30,751 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:30,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644306032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:30,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:30,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-22 01:46:30,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118144708] [2024-11-22 01:46:30,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:30,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:46:30,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:30,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:46:30,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-11-22 01:46:30,752 INFO L87 Difference]: Start difference. First operand 3181 states and 5166 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 6 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-22 01:46:33,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:33,257 INFO L93 Difference]: Finished difference Result 11351 states and 18720 transitions. [2024-11-22 01:46:33,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 01:46:33,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 6 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 152 [2024-11-22 01:46:33,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:33,303 INFO L225 Difference]: With dead ends: 11351 [2024-11-22 01:46:33,303 INFO L226 Difference]: Without dead ends: 8223 [2024-11-22 01:46:33,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2024-11-22 01:46:33,316 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 2341 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 4678 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 5198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 4678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:33,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2426 Valid, 2743 Invalid, 5198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 4678 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-22 01:46:33,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8223 states. [2024-11-22 01:46:33,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8223 to 7728. [2024-11-22 01:46:33,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7728 states, 5929 states have (on average 1.6262438859841457) internal successors, (9642), 6114 states have internal predecessors, (9642), 1362 states have call successors, (1362), 353 states have call predecessors, (1362), 436 states have return successors, (1641), 1326 states have call predecessors, (1641), 1357 states have call successors, (1641) [2024-11-22 01:46:33,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7728 states to 7728 states and 12645 transitions. [2024-11-22 01:46:33,615 INFO L78 Accepts]: Start accepts. Automaton has 7728 states and 12645 transitions. Word has length 152 [2024-11-22 01:46:33,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:33,616 INFO L471 AbstractCegarLoop]: Abstraction has 7728 states and 12645 transitions. [2024-11-22 01:46:33,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 6 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-22 01:46:33,616 INFO L276 IsEmpty]: Start isEmpty. Operand 7728 states and 12645 transitions. [2024-11-22 01:46:33,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-22 01:46:33,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:33,620 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:33,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 01:46:33,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:33,825 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:33,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:33,826 INFO L85 PathProgramCache]: Analyzing trace with hash 843918627, now seen corresponding path program 1 times [2024-11-22 01:46:33,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:33,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097978785] [2024-11-22 01:46:33,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:33,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:34,508 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 01:46:34,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:34,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097978785] [2024-11-22 01:46:34,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097978785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:34,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140756334] [2024-11-22 01:46:34,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:34,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:34,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:34,511 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:34,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 01:46:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:34,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-22 01:46:34,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:34,914 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:46:34,914 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:34,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140756334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:34,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:34,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-22 01:46:34,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804621336] [2024-11-22 01:46:34,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:34,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:46:34,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:34,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:46:34,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2024-11-22 01:46:34,920 INFO L87 Difference]: Start difference. First operand 7728 states and 12645 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 5 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 01:46:37,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:37,340 INFO L93 Difference]: Finished difference Result 16798 states and 27674 transitions. [2024-11-22 01:46:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 01:46:37,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 5 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 154 [2024-11-22 01:46:37,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:37,390 INFO L225 Difference]: With dead ends: 16798 [2024-11-22 01:46:37,390 INFO L226 Difference]: Without dead ends: 9123 [2024-11-22 01:46:37,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-11-22 01:46:37,423 INFO L432 NwaCegarLoop]: 523 mSDtfsCounter, 2087 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 3368 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 2191 SdHoareTripleChecker+Invalid, 3857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 3368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:37,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 2191 Invalid, 3857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 3368 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-22 01:46:37,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9123 states. [2024-11-22 01:46:37,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9123 to 8166. [2024-11-22 01:46:37,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8166 states, 6247 states have (on average 1.6135745157675685) internal successors, (10080), 6468 states have internal predecessors, (10080), 1410 states have call successors, (1410), 383 states have call predecessors, (1410), 508 states have return successors, (1805), 1380 states have call predecessors, (1805), 1405 states have call successors, (1805) [2024-11-22 01:46:37,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8166 states to 8166 states and 13295 transitions. [2024-11-22 01:46:37,852 INFO L78 Accepts]: Start accepts. Automaton has 8166 states and 13295 transitions. Word has length 154 [2024-11-22 01:46:37,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:37,853 INFO L471 AbstractCegarLoop]: Abstraction has 8166 states and 13295 transitions. [2024-11-22 01:46:37,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 5 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-22 01:46:37,853 INFO L276 IsEmpty]: Start isEmpty. Operand 8166 states and 13295 transitions. [2024-11-22 01:46:37,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 01:46:37,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:37,859 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:37,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 01:46:38,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-22 01:46:38,064 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:38,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:38,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1378003326, now seen corresponding path program 1 times [2024-11-22 01:46:38,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:38,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909024622] [2024-11-22 01:46:38,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:38,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:38,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:38,371 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 01:46:38,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:38,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909024622] [2024-11-22 01:46:38,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909024622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:38,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416868837] [2024-11-22 01:46:38,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:38,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:38,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:38,374 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:38,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 01:46:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:38,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:46:38,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:38,654 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-22 01:46:38,654 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:38,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416868837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:38,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:38,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2024-11-22 01:46:38,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742752149] [2024-11-22 01:46:38,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:38,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:46:38,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:38,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:46:38,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:46:38,656 INFO L87 Difference]: Start difference. First operand 8166 states and 13295 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:46:39,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:39,063 INFO L93 Difference]: Finished difference Result 20531 states and 33837 transitions. [2024-11-22 01:46:39,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:46:39,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2024-11-22 01:46:39,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:39,122 INFO L225 Difference]: With dead ends: 20531 [2024-11-22 01:46:39,122 INFO L226 Difference]: Without dead ends: 12422 [2024-11-22 01:46:39,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:46:39,149 INFO L432 NwaCegarLoop]: 1532 mSDtfsCounter, 802 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:39,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 2384 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:46:39,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12422 states. [2024-11-22 01:46:39,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12422 to 8142. [2024-11-22 01:46:39,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8142 states, 6235 states have (on average 1.612830793905373) internal successors, (10056), 6444 states have internal predecessors, (10056), 1410 states have call successors, (1410), 383 states have call predecessors, (1410), 496 states have return successors, (1751), 1380 states have call predecessors, (1751), 1405 states have call successors, (1751) [2024-11-22 01:46:39,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8142 states to 8142 states and 13217 transitions. [2024-11-22 01:46:39,619 INFO L78 Accepts]: Start accepts. Automaton has 8142 states and 13217 transitions. Word has length 159 [2024-11-22 01:46:39,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:39,620 INFO L471 AbstractCegarLoop]: Abstraction has 8142 states and 13217 transitions. [2024-11-22 01:46:39,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-22 01:46:39,620 INFO L276 IsEmpty]: Start isEmpty. Operand 8142 states and 13217 transitions. [2024-11-22 01:46:39,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-22 01:46:39,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:39,625 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:39,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 01:46:39,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-22 01:46:39,830 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:39,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:39,830 INFO L85 PathProgramCache]: Analyzing trace with hash -988691268, now seen corresponding path program 1 times [2024-11-22 01:46:39,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:39,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634101458] [2024-11-22 01:46:39,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:39,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:40,197 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 01:46:40,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:40,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634101458] [2024-11-22 01:46:40,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634101458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:40,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633342618] [2024-11-22 01:46:40,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:40,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:40,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:40,201 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:40,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 01:46:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:40,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 01:46:40,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:40,700 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:46:40,700 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:40,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633342618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:40,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:40,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:46:40,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014219148] [2024-11-22 01:46:40,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:40,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:40,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:40,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:40,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:46:40,703 INFO L87 Difference]: Start difference. First operand 8142 states and 13217 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:46:42,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:42,440 INFO L93 Difference]: Finished difference Result 21753 states and 35927 transitions. [2024-11-22 01:46:42,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:46:42,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 159 [2024-11-22 01:46:42,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:42,527 INFO L225 Difference]: With dead ends: 21753 [2024-11-22 01:46:42,527 INFO L226 Difference]: Without dead ends: 13656 [2024-11-22 01:46:42,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:46:42,561 INFO L432 NwaCegarLoop]: 408 mSDtfsCounter, 1879 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:42,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1957 Valid, 942 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 01:46:42,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13656 states. [2024-11-22 01:46:43,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 13056. [2024-11-22 01:46:43,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13056 states, 9882 states have (on average 1.6026108075288403) internal successors, (15837), 10262 states have internal predecessors, (15837), 2370 states have call successors, (2370), 596 states have call predecessors, (2370), 803 states have return successors, (3185), 2359 states have call predecessors, (3185), 2365 states have call successors, (3185) [2024-11-22 01:46:43,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13056 states to 13056 states and 21392 transitions. [2024-11-22 01:46:43,225 INFO L78 Accepts]: Start accepts. Automaton has 13056 states and 21392 transitions. Word has length 159 [2024-11-22 01:46:43,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:43,226 INFO L471 AbstractCegarLoop]: Abstraction has 13056 states and 21392 transitions. [2024-11-22 01:46:43,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:46:43,226 INFO L276 IsEmpty]: Start isEmpty. Operand 13056 states and 21392 transitions. [2024-11-22 01:46:43,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 01:46:43,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:43,231 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:43,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-22 01:46:43,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-22 01:46:43,436 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:43,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:43,436 INFO L85 PathProgramCache]: Analyzing trace with hash -584939194, now seen corresponding path program 1 times [2024-11-22 01:46:43,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:43,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092361220] [2024-11-22 01:46:43,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:43,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:43,700 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 01:46:43,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:43,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092361220] [2024-11-22 01:46:43,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092361220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:43,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472678359] [2024-11-22 01:46:43,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:43,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:43,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:43,705 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:43,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 01:46:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:44,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 1775 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 01:46:44,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:44,104 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:46:44,105 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:44,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472678359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:44,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:44,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:46:44,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38222681] [2024-11-22 01:46:44,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:44,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:44,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:44,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:44,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:46:44,107 INFO L87 Difference]: Start difference. First operand 13056 states and 21392 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:46:46,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:46,697 INFO L93 Difference]: Finished difference Result 37957 states and 64298 transitions. [2024-11-22 01:46:46,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:46:46,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 160 [2024-11-22 01:46:46,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:46,852 INFO L225 Difference]: With dead ends: 37957 [2024-11-22 01:46:46,852 INFO L226 Difference]: Without dead ends: 24946 [2024-11-22 01:46:46,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:46:46,924 INFO L432 NwaCegarLoop]: 387 mSDtfsCounter, 1882 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1959 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:46,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1959 Valid, 913 Invalid, 1682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 01:46:46,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24946 states. [2024-11-22 01:46:48,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24946 to 23867. [2024-11-22 01:46:48,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23867 states, 17761 states have (on average 1.5919711727943247) internal successors, (28275), 18555 states have internal predecessors, (28275), 4646 states have call successors, (4646), 1022 states have call predecessors, (4646), 1459 states have return successors, (7091), 4697 states have call predecessors, (7091), 4641 states have call successors, (7091) [2024-11-22 01:46:48,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23867 states to 23867 states and 40012 transitions. [2024-11-22 01:46:48,326 INFO L78 Accepts]: Start accepts. Automaton has 23867 states and 40012 transitions. Word has length 160 [2024-11-22 01:46:48,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:48,327 INFO L471 AbstractCegarLoop]: Abstraction has 23867 states and 40012 transitions. [2024-11-22 01:46:48,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:46:48,327 INFO L276 IsEmpty]: Start isEmpty. Operand 23867 states and 40012 transitions. [2024-11-22 01:46:48,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-22 01:46:48,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:48,332 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:48,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-22 01:46:48,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-22 01:46:48,533 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:48,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:48,533 INFO L85 PathProgramCache]: Analyzing trace with hash -953522882, now seen corresponding path program 1 times [2024-11-22 01:46:48,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:48,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721430551] [2024-11-22 01:46:48,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:48,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:48,759 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 01:46:48,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:48,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721430551] [2024-11-22 01:46:48,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721430551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:48,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921259752] [2024-11-22 01:46:48,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:48,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:48,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:48,762 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:48,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-22 01:46:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:49,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 01:46:49,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:46:49,105 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:49,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921259752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:49,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:49,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:46:49,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682495289] [2024-11-22 01:46:49,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:49,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:49,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:49,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:49,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:46:49,107 INFO L87 Difference]: Start difference. First operand 23867 states and 40012 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:46:53,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:46:53,545 INFO L93 Difference]: Finished difference Result 74005 states and 131477 transitions. [2024-11-22 01:46:53,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:46:53,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 161 [2024-11-22 01:46:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:46:53,851 INFO L225 Difference]: With dead ends: 74005 [2024-11-22 01:46:53,851 INFO L226 Difference]: Without dead ends: 50183 [2024-11-22 01:46:53,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:46:53,951 INFO L432 NwaCegarLoop]: 386 mSDtfsCounter, 1869 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1945 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:46:53,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1945 Valid, 909 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 01:46:53,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50183 states. [2024-11-22 01:46:57,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50183 to 48111. [2024-11-22 01:46:57,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48111 states, 35072 states have (on average 1.5809477645985401) internal successors, (55447), 36880 states have internal predecessors, (55447), 10159 states have call successors, (10159), 1874 states have call predecessors, (10159), 2879 states have return successors, (18318), 10406 states have call predecessors, (18318), 10154 states have call successors, (18318) [2024-11-22 01:46:57,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48111 states to 48111 states and 83924 transitions. [2024-11-22 01:46:57,446 INFO L78 Accepts]: Start accepts. Automaton has 48111 states and 83924 transitions. Word has length 161 [2024-11-22 01:46:57,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:46:57,447 INFO L471 AbstractCegarLoop]: Abstraction has 48111 states and 83924 transitions. [2024-11-22 01:46:57,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:46:57,447 INFO L276 IsEmpty]: Start isEmpty. Operand 48111 states and 83924 transitions. [2024-11-22 01:46:57,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-22 01:46:57,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:46:57,453 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:46:57,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-22 01:46:57,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-22 01:46:57,658 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:46:57,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:46:57,658 INFO L85 PathProgramCache]: Analyzing trace with hash 505288584, now seen corresponding path program 1 times [2024-11-22 01:46:57,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:46:57,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210983196] [2024-11-22 01:46:57,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:57,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:46:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-22 01:46:57,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:46:57,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210983196] [2024-11-22 01:46:57,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210983196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:46:57,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811799958] [2024-11-22 01:46:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:46:57,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:46:57,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:46:57,923 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:46:57,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-22 01:46:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:46:58,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-22 01:46:58,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:46:58,289 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-22 01:46:58,289 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:46:58,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811799958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:46:58,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:46:58,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-22 01:46:58,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301222396] [2024-11-22 01:46:58,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:46:58,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:46:58,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:46:58,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:46:58,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:46:58,291 INFO L87 Difference]: Start difference. First operand 48111 states and 83924 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:47:07,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:47:07,253 INFO L93 Difference]: Finished difference Result 155858 states and 299390 transitions. [2024-11-22 01:47:07,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:47:07,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 162 [2024-11-22 01:47:07,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:47:08,659 INFO L225 Difference]: With dead ends: 155858 [2024-11-22 01:47:08,659 INFO L226 Difference]: Without dead ends: 107792 [2024-11-22 01:47:09,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:47:09,021 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1856 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-22 01:47:09,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 908 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-22 01:47:09,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107792 states. [2024-11-22 01:47:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107792 to 103867. [2024-11-22 01:47:16,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103867 states, 74023 states have (on average 1.569444632073815) internal successors, (116175), 78345 states have internal predecessors, (116175), 23836 states have call successors, (23836), 3578 states have call predecessors, (23836), 6007 states have return successors, (52561), 24691 states have call predecessors, (52561), 23831 states have call successors, (52561) [2024-11-22 01:47:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103867 states to 103867 states and 192572 transitions. [2024-11-22 01:47:18,155 INFO L78 Accepts]: Start accepts. Automaton has 103867 states and 192572 transitions. Word has length 162 [2024-11-22 01:47:18,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:47:18,156 INFO L471 AbstractCegarLoop]: Abstraction has 103867 states and 192572 transitions. [2024-11-22 01:47:18,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-22 01:47:18,156 INFO L276 IsEmpty]: Start isEmpty. Operand 103867 states and 192572 transitions. [2024-11-22 01:47:18,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-22 01:47:18,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:47:18,166 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:47:18,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-22 01:47:18,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-22 01:47:18,370 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:47:18,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:47:18,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1516192320, now seen corresponding path program 1 times [2024-11-22 01:47:18,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:47:18,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688454288] [2024-11-22 01:47:18,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:47:18,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:47:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat