/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:39:54,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:39:54,092 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:39:54,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:39:54,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:39:54,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:39:54,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:39:54,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:39:54,110 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:39:54,111 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:39:54,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:39:54,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:39:54,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:39:54,112 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:39:54,112 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:39:54,112 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:39:54,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:39:54,113 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:39:54,113 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:39:54,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:39:54,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:39:54,114 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:39:54,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:39:54,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:39:54,114 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:39:54,114 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:39:54,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:39:54,115 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:39:54,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:39:54,115 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:39:54,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:39:54,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:39:54,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:39:54,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:39:54,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:39:54,116 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:39:54,116 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:39:54,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:39:54,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:39:54,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:39:54,117 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:39:54,117 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:39:54,117 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:39:54,117 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:39:54,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:39:54,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:39:54,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:39:54,313 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:39:54,313 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:39:54,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_productSimulator.cil.c [2023-12-15 22:39:55,314 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:39:55,603 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:39:55,603 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_productSimulator.cil.c [2023-12-15 22:39:55,639 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6ebb8f2e/30e4b8aaada7430a9109d1875b9c423b/FLAG86b3642c0 [2023-12-15 22:39:55,653 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6ebb8f2e/30e4b8aaada7430a9109d1875b9c423b [2023-12-15 22:39:55,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:39:55,656 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:39:55,658 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:39:55,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:39:55,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:39:55,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:39:55" (1/1) ... [2023-12-15 22:39:55,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43055d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:55, skipping insertion in model container [2023-12-15 22:39:55,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:39:55" (1/1) ... [2023-12-15 22:39:55,723 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:39:55,949 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_productSimulator.cil.c[28992,29005] [2023-12-15 22:39:56,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:39:56,092 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:39:56,098 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2023-12-15 22:39:56,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [414] [2023-12-15 22:39:56,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1089] [2023-12-15 22:39:56,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1191] [2023-12-15 22:39:56,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1200] [2023-12-15 22:39:56,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3061] [2023-12-15 22:39:56,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3132] [2023-12-15 22:39:56,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3250] [2023-12-15 22:39:56,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3599] [2023-12-15 22:39:56,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [3614] [2023-12-15 22:39:56,138 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_productSimulator.cil.c[28992,29005] [2023-12-15 22:39:56,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:39:56,231 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:39:56,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56 WrapperNode [2023-12-15 22:39:56,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:39:56,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:39:56,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:39:56,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:39:56,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,301 INFO L138 Inliner]: procedures = 108, calls = 388, calls flagged for inlining = 33, calls inlined = 29, statements flattened = 1104 [2023-12-15 22:39:56,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:39:56,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:39:56,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:39:56,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:39:56,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,317 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,338 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-15 22:39:56,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,352 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,361 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:39:56,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:39:56,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:39:56,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:39:56,378 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (1/1) ... [2023-12-15 22:39:56,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:39:56,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:39:56,469 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) [2023-12-15 22:39:56,519 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 [2023-12-15 22:39:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-12-15 22:39:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-12-15 22:39:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-15 22:39:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-15 22:39:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-15 22:39:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-15 22:39:56,535 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__twothirdsfull [2023-12-15 22:39:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__twothirdsfull [2023-12-15 22:39:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:39:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:39:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__empty [2023-12-15 22:39:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__empty [2023-12-15 22:39:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-15 22:39:56,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-15 22:39:56,536 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-15 22:39:56,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-15 22:39:56,537 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-15 22:39:56,537 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-15 22:39:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__before__weight [2023-12-15 22:39:56,539 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__before__weight [2023-12-15 22:39:56,539 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-15 22:39:56,540 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-15 22:39:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-15 22:39:56,540 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-15 22:39:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-15 22:39:56,540 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-15 22:39:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2023-12-15 22:39:56,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2023-12-15 22:39:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:39:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-15 22:39:56,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-15 22:39:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-15 22:39:56,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-15 22:39:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-15 22:39:56,540 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-15 22:39:56,540 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-15 22:39:56,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-15 22:39:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__before__overloaded [2023-12-15 22:39:56,541 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__before__overloaded [2023-12-15 22:39:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:39:56,541 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:39:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-15 22:39:56,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-15 22:39:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-15 22:39:56,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-15 22:39:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__weight [2023-12-15 22:39:56,541 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__weight [2023-12-15 22:39:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__executivefloor [2023-12-15 22:39:56,541 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__executivefloor [2023-12-15 22:39:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-12-15 22:39:56,541 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-12-15 22:39:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-15 22:39:56,541 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-15 22:39:56,541 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__executivefloor [2023-12-15 22:39:56,542 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__executivefloor [2023-12-15 22:39:56,542 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-15 22:39:56,542 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-15 22:39:56,542 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-12-15 22:39:56,542 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-12-15 22:39:56,542 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-15 22:39:56,542 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-15 22:39:56,543 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-15 22:39:56,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-15 22:39:56,543 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-15 22:39:56,543 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-15 22:39:56,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:39:56,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:39:56,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:39:56,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:39:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-15 22:39:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-15 22:39:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-15 22:39:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-15 22:39:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-15 22:39:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-15 22:39:56,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-12-15 22:39:56,546 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-15 22:39:56,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2023-12-15 22:39:56,546 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:39:56,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:39:56,546 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-15 22:39:56,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-15 22:39:56,743 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:39:56,745 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:39:57,534 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:39:57,588 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:39:57,588 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:39:57,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:39:57 BoogieIcfgContainer [2023-12-15 22:39:57,589 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:39:57,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:39:57,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:39:57,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:39:57,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:39:55" (1/3) ... [2023-12-15 22:39:57,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f2687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:39:57, skipping insertion in model container [2023-12-15 22:39:57,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:39:56" (2/3) ... [2023-12-15 22:39:57,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f2687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:39:57, skipping insertion in model container [2023-12-15 22:39:57,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:39:57" (3/3) ... [2023-12-15 22:39:57,598 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_productSimulator.cil.c [2023-12-15 22:39:57,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:39:57,611 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:39:57,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:39:57,714 INFO L357 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, mHoare=true, 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;@c0d23f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:39:57,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:39:57,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 676 states, 503 states have (on average 1.662027833001988) internal successors, (836), 527 states have internal predecessors, (836), 135 states have call successors, (135), 36 states have call predecessors, (135), 36 states have return successors, (135), 130 states have call predecessors, (135), 135 states have call successors, (135) [2023-12-15 22:39:57,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-15 22:39:57,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:39:57,745 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-15 22:39:57,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:39:57,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:39:57,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1877300226, now seen corresponding path program 1 times [2023-12-15 22:39:57,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:39:57,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923473745] [2023-12-15 22:39:57,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:39:57,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:39:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:39:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:39:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:39:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:39:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:39:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 22:39:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:39:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:39:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:39:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:39:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:39:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 22:39:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:39:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:39:58,740 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:39:58,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:39:58,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923473745] [2023-12-15 22:39:58,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923473745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:39:58,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:39:58,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:39:58,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466609163] [2023-12-15 22:39:58,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:39:58,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:39:58,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:39:58,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:39:58,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:39:58,772 INFO L87 Difference]: Start difference. First operand has 676 states, 503 states have (on average 1.662027833001988) internal successors, (836), 527 states have internal predecessors, (836), 135 states have call successors, (135), 36 states have call predecessors, (135), 36 states have return successors, (135), 130 states have call predecessors, (135), 135 states have call successors, (135) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:40:03,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:03,661 INFO L93 Difference]: Finished difference Result 1587 states and 2701 transitions. [2023-12-15 22:40:03,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:40:03,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 82 [2023-12-15 22:40:03,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:03,695 INFO L225 Difference]: With dead ends: 1587 [2023-12-15 22:40:03,696 INFO L226 Difference]: Without dead ends: 919 [2023-12-15 22:40:03,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:03,711 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 895 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 3469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:03,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 1292 Invalid, 3469 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [214 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-15 22:40:03,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-12-15 22:40:03,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 670. [2023-12-15 22:40:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 500 states have (on average 1.646) internal successors, (823), 522 states have internal predecessors, (823), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-15 22:40:03,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1090 transitions. [2023-12-15 22:40:03,921 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1090 transitions. Word has length 82 [2023-12-15 22:40:03,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:03,921 INFO L495 AbstractCegarLoop]: Abstraction has 670 states and 1090 transitions. [2023-12-15 22:40:03,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:40:03,921 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1090 transitions. [2023-12-15 22:40:03,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-15 22:40:03,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:03,927 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-15 22:40:03,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:40:03,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:03,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:03,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1716307438, now seen corresponding path program 1 times [2023-12-15 22:40:03,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:03,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056920490] [2023-12-15 22:40:03,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:03,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:40:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:40:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:40:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:40:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:40:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:40:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 22:40:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:40:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:04,694 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:40:04,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:04,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056920490] [2023-12-15 22:40:04,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056920490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:04,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:04,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:04,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687904624] [2023-12-15 22:40:04,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:04,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:04,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:04,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:04,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:04,701 INFO L87 Difference]: Start difference. First operand 670 states and 1090 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:10,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:10,718 INFO L93 Difference]: Finished difference Result 1585 states and 2674 transitions. [2023-12-15 22:40:10,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:40:10,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 83 [2023-12-15 22:40:10,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:10,724 INFO L225 Difference]: With dead ends: 1585 [2023-12-15 22:40:10,724 INFO L226 Difference]: Without dead ends: 943 [2023-12-15 22:40:10,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:40:10,728 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 1670 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 5968 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1797 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 6404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 5968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:10,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1797 Valid, 2497 Invalid, 6404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [436 Valid, 5968 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-15 22:40:10,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2023-12-15 22:40:10,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 682. [2023-12-15 22:40:10,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 509 states have (on average 1.6444007858546168) internal successors, (837), 533 states have internal predecessors, (837), 136 states have call successors, (136), 36 states have call predecessors, (136), 36 states have return successors, (135), 129 states have call predecessors, (135), 133 states have call successors, (135) [2023-12-15 22:40:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1108 transitions. [2023-12-15 22:40:10,809 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1108 transitions. Word has length 83 [2023-12-15 22:40:10,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:10,812 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 1108 transitions. [2023-12-15 22:40:10,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:10,812 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1108 transitions. [2023-12-15 22:40:10,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-15 22:40:10,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:10,814 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-15 22:40:10,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:40:10,814 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:10,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:10,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1020586712, now seen corresponding path program 1 times [2023-12-15 22:40:10,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:10,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244055413] [2023-12-15 22:40:10,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:10,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:10,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:10,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:10,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:40:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:40:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:40:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:11,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:40:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:11,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:11,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:40:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:11,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:11,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:40:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:11,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:40:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:11,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:40:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:11,426 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:40:11,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:11,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244055413] [2023-12-15 22:40:11,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244055413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:11,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:11,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:11,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869979135] [2023-12-15 22:40:11,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:11,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:11,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:11,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:11,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:11,428 INFO L87 Difference]: Start difference. First operand 682 states and 1108 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:18,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:18,236 INFO L93 Difference]: Finished difference Result 1598 states and 2693 transitions. [2023-12-15 22:40:18,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 22:40:18,237 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2023-12-15 22:40:18,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:18,242 INFO L225 Difference]: With dead ends: 1598 [2023-12-15 22:40:18,242 INFO L226 Difference]: Without dead ends: 944 [2023-12-15 22:40:18,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:40:18,245 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 970 mSDsluCounter, 2063 mSDsCounter, 0 mSdLazyCounter, 6172 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 6381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 6172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:18,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 2481 Invalid, 6381 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [209 Valid, 6172 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-15 22:40:18,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2023-12-15 22:40:18,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 682. [2023-12-15 22:40:18,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 509 states have (on average 1.6424361493123771) internal successors, (836), 533 states have internal predecessors, (836), 136 states have call successors, (136), 36 states have call predecessors, (136), 36 states have return successors, (135), 129 states have call predecessors, (135), 133 states have call successors, (135) [2023-12-15 22:40:18,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1107 transitions. [2023-12-15 22:40:18,332 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1107 transitions. Word has length 84 [2023-12-15 22:40:18,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:18,333 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 1107 transitions. [2023-12-15 22:40:18,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:18,333 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1107 transitions. [2023-12-15 22:40:18,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-15 22:40:18,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:18,334 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-15 22:40:18,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:40:18,335 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:18,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:18,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1910056898, now seen corresponding path program 1 times [2023-12-15 22:40:18,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:18,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804497037] [2023-12-15 22:40:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:18,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:40:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:40:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:40:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:40:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:40:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:40:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:40:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:40:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:40:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:40:18,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:18,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804497037] [2023-12-15 22:40:18,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804497037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:18,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:18,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:40:18,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545339964] [2023-12-15 22:40:18,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:18,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:40:18,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:18,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:40:18,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:40:18,834 INFO L87 Difference]: Start difference. First operand 682 states and 1107 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:40:23,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:23,707 INFO L93 Difference]: Finished difference Result 1591 states and 2675 transitions. [2023-12-15 22:40:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:40:23,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 84 [2023-12-15 22:40:23,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:23,712 INFO L225 Difference]: With dead ends: 1591 [2023-12-15 22:40:23,712 INFO L226 Difference]: Without dead ends: 908 [2023-12-15 22:40:23,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:40:23,715 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 1566 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 3108 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 3543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 3108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:23,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 1382 Invalid, 3543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 3108 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-15 22:40:23,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2023-12-15 22:40:23,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 659. [2023-12-15 22:40:23,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 489 states have (on average 1.6319018404907975) internal successors, (798), 511 states have internal predecessors, (798), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-15 22:40:23,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1065 transitions. [2023-12-15 22:40:23,787 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1065 transitions. Word has length 84 [2023-12-15 22:40:23,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:23,787 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 1065 transitions. [2023-12-15 22:40:23,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-15 22:40:23,787 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1065 transitions. [2023-12-15 22:40:23,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-15 22:40:23,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:23,788 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-15 22:40:23,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:40:23,788 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:23,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:23,788 INFO L85 PathProgramCache]: Analyzing trace with hash 289092474, now seen corresponding path program 1 times [2023-12-15 22:40:23,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:23,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791876916] [2023-12-15 22:40:23,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:23,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:23,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:23,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:40:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:23,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:23,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:40:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:23,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:40:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:40:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:40:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:40:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:40:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:40:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:40:24,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:24,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791876916] [2023-12-15 22:40:24,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791876916] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:24,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:24,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:24,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344333021] [2023-12-15 22:40:24,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:24,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:24,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:24,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:24,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:24,316 INFO L87 Difference]: Start difference. First operand 659 states and 1065 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:30,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:30,209 INFO L93 Difference]: Finished difference Result 1555 states and 2607 transitions. [2023-12-15 22:40:30,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:40:30,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 85 [2023-12-15 22:40:30,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:30,214 INFO L225 Difference]: With dead ends: 1555 [2023-12-15 22:40:30,214 INFO L226 Difference]: Without dead ends: 902 [2023-12-15 22:40:30,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:40:30,216 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 965 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 5835 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 6048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 5835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:30,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 2249 Invalid, 6048 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [213 Valid, 5835 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-15 22:40:30,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-12-15 22:40:30,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 653. [2023-12-15 22:40:30,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 483 states have (on average 1.6252587991718426) internal successors, (785), 505 states have internal predecessors, (785), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-15 22:40:30,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 1052 transitions. [2023-12-15 22:40:30,287 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 1052 transitions. Word has length 85 [2023-12-15 22:40:30,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:30,287 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 1052 transitions. [2023-12-15 22:40:30,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:30,287 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 1052 transitions. [2023-12-15 22:40:30,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-15 22:40:30,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:30,288 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-15 22:40:30,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:40:30,288 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:30,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:30,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1501321920, now seen corresponding path program 1 times [2023-12-15 22:40:30,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:30,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176390360] [2023-12-15 22:40:30,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:30,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:40:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:40:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:40:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:40:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:40:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 22:40:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:40:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:40:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:40:30,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:30,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176390360] [2023-12-15 22:40:30,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176390360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:30,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:30,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:30,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347414551] [2023-12-15 22:40:30,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:30,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:30,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:30,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:30,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:30,808 INFO L87 Difference]: Start difference. First operand 653 states and 1052 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:36,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:36,896 INFO L93 Difference]: Finished difference Result 1527 states and 2558 transitions. [2023-12-15 22:40:36,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:40:36,896 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 86 [2023-12-15 22:40:36,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:36,901 INFO L225 Difference]: With dead ends: 1527 [2023-12-15 22:40:36,901 INFO L226 Difference]: Without dead ends: 902 [2023-12-15 22:40:36,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:40:36,905 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 919 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 5829 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 6030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 5829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:36,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 2554 Invalid, 6030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 5829 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-15 22:40:36,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-12-15 22:40:37,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 653. [2023-12-15 22:40:37,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 483 states have (on average 1.6231884057971016) internal successors, (784), 505 states have internal predecessors, (784), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-15 22:40:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 1051 transitions. [2023-12-15 22:40:37,006 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 1051 transitions. Word has length 86 [2023-12-15 22:40:37,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:37,006 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 1051 transitions. [2023-12-15 22:40:37,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:37,006 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 1051 transitions. [2023-12-15 22:40:37,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-15 22:40:37,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:37,007 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-15 22:40:37,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:40:37,007 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:37,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:37,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1068165015, now seen corresponding path program 1 times [2023-12-15 22:40:37,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:37,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885052266] [2023-12-15 22:40:37,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:37,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:40:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:40:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:40:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:40:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:40:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 22:40:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:40:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:40:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:37,547 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:40:37,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:37,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885052266] [2023-12-15 22:40:37,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885052266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:37,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:37,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:37,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141415945] [2023-12-15 22:40:37,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:37,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:37,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:37,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:37,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:37,548 INFO L87 Difference]: Start difference. First operand 653 states and 1051 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:43,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:43,456 INFO L93 Difference]: Finished difference Result 1543 states and 2576 transitions. [2023-12-15 22:40:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:40:43,457 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 87 [2023-12-15 22:40:43,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:43,460 INFO L225 Difference]: With dead ends: 1543 [2023-12-15 22:40:43,460 INFO L226 Difference]: Without dead ends: 896 [2023-12-15 22:40:43,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:40:43,478 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 1567 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 5675 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 6105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 5675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:43,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 2594 Invalid, 6105 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [430 Valid, 5675 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-15 22:40:43,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-12-15 22:40:43,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 647. [2023-12-15 22:40:43,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 477 states have (on average 1.6163522012578617) internal successors, (771), 499 states have internal predecessors, (771), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-15 22:40:43,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 1038 transitions. [2023-12-15 22:40:43,591 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 1038 transitions. Word has length 87 [2023-12-15 22:40:43,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:43,591 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 1038 transitions. [2023-12-15 22:40:43,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 1038 transitions. [2023-12-15 22:40:43,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-15 22:40:43,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:43,593 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-15 22:40:43,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:40:43,593 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:43,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:43,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1797524481, now seen corresponding path program 1 times [2023-12-15 22:40:43,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:43,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017435800] [2023-12-15 22:40:43,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:43,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:43,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:43,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:40:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:43,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:43,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:40:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:43,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:40:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:40:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:44,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:44,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:40:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:44,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:44,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:40:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:44,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:40:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:44,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:40:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:44,103 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:40:44,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:44,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017435800] [2023-12-15 22:40:44,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017435800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:44,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:44,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:44,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113147300] [2023-12-15 22:40:44,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:44,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:44,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:44,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:44,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:44,104 INFO L87 Difference]: Start difference. First operand 647 states and 1038 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:49,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:49,037 INFO L93 Difference]: Finished difference Result 1515 states and 2529 transitions. [2023-12-15 22:40:49,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:40:49,038 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 88 [2023-12-15 22:40:49,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:49,048 INFO L225 Difference]: With dead ends: 1515 [2023-12-15 22:40:49,048 INFO L226 Difference]: Without dead ends: 896 [2023-12-15 22:40:49,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:40:49,051 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 895 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 5638 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 5848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 5638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:49,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 2188 Invalid, 5848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 5638 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-15 22:40:49,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-12-15 22:40:49,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 647. [2023-12-15 22:40:49,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 477 states have (on average 1.6142557651991614) internal successors, (770), 499 states have internal predecessors, (770), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-15 22:40:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 1037 transitions. [2023-12-15 22:40:49,147 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 1037 transitions. Word has length 88 [2023-12-15 22:40:49,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:49,148 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 1037 transitions. [2023-12-15 22:40:49,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:49,148 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 1037 transitions. [2023-12-15 22:40:49,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 22:40:49,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:49,149 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-15 22:40:49,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:40:49,149 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:49,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:49,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1902017147, now seen corresponding path program 1 times [2023-12-15 22:40:49,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:49,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105725887] [2023-12-15 22:40:49,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:49,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:40:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:40:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:40:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:40:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:40:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:40:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:40:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:40:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:49,629 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:40:49,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:49,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105725887] [2023-12-15 22:40:49,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105725887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:49,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:49,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:49,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904736535] [2023-12-15 22:40:49,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:49,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:49,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:49,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:49,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:49,630 INFO L87 Difference]: Start difference. First operand 647 states and 1037 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:54,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:40:54,725 INFO L93 Difference]: Finished difference Result 1531 states and 2545 transitions. [2023-12-15 22:40:54,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:40:54,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 89 [2023-12-15 22:40:54,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:40:54,730 INFO L225 Difference]: With dead ends: 1531 [2023-12-15 22:40:54,730 INFO L226 Difference]: Without dead ends: 890 [2023-12-15 22:40:54,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:40:54,732 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 1529 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 5548 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 5992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 5548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:40:54,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 2413 Invalid, 5992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 5548 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-15 22:40:54,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-12-15 22:40:54,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 641. [2023-12-15 22:40:54,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 471 states have (on average 1.6072186836518048) internal successors, (757), 493 states have internal predecessors, (757), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-15 22:40:54,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1024 transitions. [2023-12-15 22:40:54,845 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1024 transitions. Word has length 89 [2023-12-15 22:40:54,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:40:54,845 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1024 transitions. [2023-12-15 22:40:54,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:40:54,845 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1024 transitions. [2023-12-15 22:40:54,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 22:40:54,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:40:54,846 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-15 22:40:54,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:40:54,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:40:54,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:40:54,847 INFO L85 PathProgramCache]: Analyzing trace with hash -421170342, now seen corresponding path program 1 times [2023-12-15 22:40:54,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:40:54,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758901600] [2023-12-15 22:40:54,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:40:54,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:40:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:54,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:54,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:40:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:54,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:40:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:54,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:40:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:54,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:40:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:55,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:40:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:55,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:55,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:40:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:55,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:40:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:55,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:40:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:55,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:40:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:55,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:40:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:55,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:40:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:40:55,250 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:40:55,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:40:55,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758901600] [2023-12-15 22:40:55,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758901600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:40:55,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:40:55,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:40:55,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014448437] [2023-12-15 22:40:55,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:40:55,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:40:55,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:40:55,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:40:55,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:40:55,251 INFO L87 Difference]: Start difference. First operand 641 states and 1024 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:41:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:41:00,125 INFO L93 Difference]: Finished difference Result 1503 states and 2500 transitions. [2023-12-15 22:41:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:41:00,125 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 89 [2023-12-15 22:41:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:41:00,136 INFO L225 Difference]: With dead ends: 1503 [2023-12-15 22:41:00,136 INFO L226 Difference]: Without dead ends: 890 [2023-12-15 22:41:00,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:41:00,138 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 1480 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 5542 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 2389 SdHoareTripleChecker+Invalid, 5980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 5542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:41:00,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 2389 Invalid, 5980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 5542 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-15 22:41:00,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2023-12-15 22:41:00,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 641. [2023-12-15 22:41:00,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 471 states have (on average 1.605095541401274) internal successors, (756), 493 states have internal predecessors, (756), 135 states have call successors, (135), 36 states have call predecessors, (135), 34 states have return successors, (132), 128 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-15 22:41:00,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1023 transitions. [2023-12-15 22:41:00,212 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1023 transitions. Word has length 89 [2023-12-15 22:41:00,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:41:00,212 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 1023 transitions. [2023-12-15 22:41:00,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-15 22:41:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1023 transitions. [2023-12-15 22:41:00,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-15 22:41:00,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:41:00,213 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2023-12-15 22:41:00,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 22:41:00,213 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:41:00,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:41:00,214 INFO L85 PathProgramCache]: Analyzing trace with hash -804184121, now seen corresponding path program 1 times [2023-12-15 22:41:00,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:41:00,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626262963] [2023-12-15 22:41:00,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:41:00,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:41:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:41:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:41:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:41:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:41:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:41:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:41:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:41:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:41:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:41:00,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:41:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:41:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:41:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:41:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:41:00,644 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:41:00,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:41:00,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626262963] [2023-12-15 22:41:00,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626262963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:41:00,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:41:00,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:41:00,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082779915] [2023-12-15 22:41:00,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:41:00,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:41:00,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:41:00,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:41:00,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:41:00,646 INFO L87 Difference]: Start difference. First operand 641 states and 1023 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Received shutdown request... [2023-12-15 22:41:01,673 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 22:41:01,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:41:01,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:41:01,710 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:41:01,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 169 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:41:01,719 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:41:01,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:41:01,720 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (641states) and FLOYD_HOARE automaton (currently 7 states, 9 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-49-1 term,while SimplifyDDA2 was simplifying 49 xjuncts wrt. a ATOM-1 context. [2023-12-15 22:41:01,723 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:41:01,740 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:41:01,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:41:01 BoogieIcfgContainer [2023-12-15 22:41:01,744 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:41:01,745 INFO L158 Benchmark]: Toolchain (without parser) took 66088.31ms. Allocated memory was 269.5MB in the beginning and 721.4MB in the end (delta: 451.9MB). Free memory was 223.3MB in the beginning and 582.6MB in the end (delta: -359.3MB). Peak memory consumption was 93.4MB. Max. memory is 8.0GB. [2023-12-15 22:41:01,746 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory was 156.2MB in the beginning and 156.2MB in the end (delta: 89.7kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:41:01,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 573.67ms. Allocated memory is still 269.5MB. Free memory was 223.1MB in the beginning and 175.4MB in the end (delta: 47.7MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. [2023-12-15 22:41:01,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.51ms. Allocated memory is still 269.5MB. Free memory was 175.4MB in the beginning and 169.2MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 22:41:01,748 INFO L158 Benchmark]: Boogie Preprocessor took 74.05ms. Allocated memory is still 269.5MB. Free memory was 169.2MB in the beginning and 159.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-15 22:41:01,748 INFO L158 Benchmark]: RCFGBuilder took 1211.77ms. Allocated memory is still 269.5MB. Free memory was 159.3MB in the beginning and 118.5MB in the end (delta: 40.8MB). Peak memory consumption was 42.1MB. Max. memory is 8.0GB. [2023-12-15 22:41:01,749 INFO L158 Benchmark]: TraceAbstraction took 64153.51ms. Allocated memory was 269.5MB in the beginning and 721.4MB in the end (delta: 451.9MB). Free memory was 118.0MB in the beginning and 582.6MB in the end (delta: -464.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:41:01,749 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory was 156.2MB in the beginning and 156.2MB in the end (delta: 89.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 573.67ms. Allocated memory is still 269.5MB. Free memory was 223.1MB in the beginning and 175.4MB in the end (delta: 47.7MB). Peak memory consumption was 48.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.51ms. Allocated memory is still 269.5MB. Free memory was 175.4MB in the beginning and 169.2MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 74.05ms. Allocated memory is still 269.5MB. Free memory was 169.2MB in the beginning and 159.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1211.77ms. Allocated memory is still 269.5MB. Free memory was 159.3MB in the beginning and 118.5MB in the end (delta: 40.8MB). Peak memory consumption was 42.1MB. Max. memory is 8.0GB. * TraceAbstraction took 64153.51ms. Allocated memory was 269.5MB in the beginning and 721.4MB in the end (delta: 451.9MB). Free memory was 118.0MB in the beginning and 582.6MB in the end (delta: -464.6MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] - GenericResultAtLocation [Line: 414]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [414] - GenericResultAtLocation [Line: 1089]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1089] - GenericResultAtLocation [Line: 1191]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1191] - GenericResultAtLocation [Line: 1200]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1200] - GenericResultAtLocation [Line: 3061]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3061] - GenericResultAtLocation [Line: 3132]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3132] - GenericResultAtLocation [Line: 3250]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3250] - GenericResultAtLocation [Line: 3599]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3599] - GenericResultAtLocation [Line: 3614]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [3614] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1196]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1196). Cancelled while NwaCegarLoop was constructing difference of abstraction (641states) and FLOYD_HOARE automaton (currently 7 states, 9 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-49-1 term,while SimplifyDDA2 was simplifying 49 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 676 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.1s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 56.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13746 SdHoareTripleChecker+Valid, 44.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12470 mSDsluCounter, 22208 SdHoareTripleChecker+Invalid, 40.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18048 mSDsCounter, 3239 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52739 IncrementalHoareTripleChecker+Invalid, 55978 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3239 mSolverCounterUnsat, 4160 mSDtfsCounter, 52739 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 422 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=682occurred in iteration=2, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 2515 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 947 NumberOfCodeBlocks, 947 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 936 ConstructedInterpolants, 0 QuantifiedInterpolants, 6225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 242/242 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown