/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 08:38:08,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 08:38:08,766 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 08:38:08,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 08:38:08,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 08:38:08,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 08:38:08,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 08:38:08,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 08:38:08,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 08:38:08,801 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 08:38:08,801 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 08:38:08,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 08:38:08,802 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 08:38:08,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 08:38:08,803 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 08:38:08,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 08:38:08,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 08:38:08,804 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 08:38:08,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 08:38:08,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 08:38:08,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 08:38:08,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 08:38:08,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 08:38:08,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 08:38:08,805 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 08:38:08,806 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 08:38:08,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 08:38:08,806 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 08:38:08,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 08:38:08,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 08:38:08,807 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 08:38:08,807 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 08:38:08,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 08:38:08,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 08:38:08,808 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 08:38:08,808 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 08:38:08,808 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 08:38:08,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 08:38:08,808 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 08:38:08,808 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 08:38:08,808 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 08:38:08,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 08:38:08,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 08:38:08,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 08:38:09,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 08:38:09,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 08:38:09,026 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 08:38:09,027 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 08:38:09,027 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 08:38:09,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product19.cil.c [2023-12-21 08:38:10,066 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 08:38:10,305 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 08:38:10,306 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product19.cil.c [2023-12-21 08:38:10,319 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3080a0f2e/323b6aa1a4784c6a857f4d09efd60afe/FLAG47d519fdc [2023-12-21 08:38:10,331 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3080a0f2e/323b6aa1a4784c6a857f4d09efd60afe [2023-12-21 08:38:10,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 08:38:10,334 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 08:38:10,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 08:38:10,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 08:38:10,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 08:38:10,338 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:10,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e7f1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10, skipping insertion in model container [2023-12-21 08:38:10,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:10,396 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 08:38:10,691 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_spec14_product19.cil.c[49225,49238] [2023-12-21 08:38:10,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 08:38:10,754 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 08:38:10,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [48] [2023-12-21 08:38:10,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1591] [2023-12-21 08:38:10,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [1685] [2023-12-21 08:38:10,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1722] [2023-12-21 08:38:10,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1740] [2023-12-21 08:38:10,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2106] [2023-12-21 08:38:10,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2144] [2023-12-21 08:38:10,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2262] [2023-12-21 08:38:10,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2271] [2023-12-21 08:38:10,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2619] [2023-12-21 08:38:10,827 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_spec14_product19.cil.c[49225,49238] [2023-12-21 08:38:10,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 08:38:10,890 INFO L206 MainTranslator]: Completed translation [2023-12-21 08:38:10,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10 WrapperNode [2023-12-21 08:38:10,890 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 08:38:10,891 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 08:38:10,891 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 08:38:10,891 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 08:38:10,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:10,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:10,953 INFO L138 Inliner]: procedures = 91, calls = 333, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 1050 [2023-12-21 08:38:10,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 08:38:10,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 08:38:10,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 08:38:10,954 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 08:38:10,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:10,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:10,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:10,995 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-21 08:38:10,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:10,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:11,023 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:11,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:11,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:11,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:11,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 08:38:11,059 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 08:38:11,059 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 08:38:11,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 08:38:11,060 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (1/1) ... [2023-12-21 08:38:11,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 08:38:11,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:38:11,095 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) [2023-12-21 08:38:11,097 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 [2023-12-21 08:38:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 08:38:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-21 08:38:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-21 08:38:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-21 08:38:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-21 08:38:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-12-21 08:38:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-12-21 08:38:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-21 08:38:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-21 08:38:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-21 08:38:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-21 08:38:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-21 08:38:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-21 08:38:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-21 08:38:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-21 08:38:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-21 08:38:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-21 08:38:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-21 08:38:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-21 08:38:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-21 08:38:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-21 08:38:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-21 08:38:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-21 08:38:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-21 08:38:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-21 08:38:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-21 08:38:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-21 08:38:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-21 08:38:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-21 08:38:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-21 08:38:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-21 08:38:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-21 08:38:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-21 08:38:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-21 08:38:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-21 08:38:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-21 08:38:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-21 08:38:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-21 08:38:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-21 08:38:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 08:38:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 08:38:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 08:38:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 08:38:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 08:38:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 08:38:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-21 08:38:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-21 08:38:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-21 08:38:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-21 08:38:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-21 08:38:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-21 08:38:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-21 08:38:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 08:38:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 08:38:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-21 08:38:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-21 08:38:11,252 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 08:38:11,254 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 08:38:11,902 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 08:38:11,946 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 08:38:11,947 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 08:38:11,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:38:11 BoogieIcfgContainer [2023-12-21 08:38:11,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 08:38:11,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 08:38:11,949 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 08:38:11,951 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 08:38:11,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 08:38:10" (1/3) ... [2023-12-21 08:38:11,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436473e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:38:11, skipping insertion in model container [2023-12-21 08:38:11,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:38:10" (2/3) ... [2023-12-21 08:38:11,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436473e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:38:11, skipping insertion in model container [2023-12-21 08:38:11,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:38:11" (3/3) ... [2023-12-21 08:38:11,952 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product19.cil.c [2023-12-21 08:38:11,963 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 08:38:11,963 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 08:38:11,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 08:38:12,002 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;@600d5dc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 08:38:12,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 08:38:12,007 INFO L276 IsEmpty]: Start isEmpty. Operand has 510 states, 392 states have (on average 1.7142857142857142) internal successors, (672), 408 states have internal predecessors, (672), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-21 08:38:12,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-21 08:38:12,035 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:12,036 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:12,036 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:12,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:12,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1259319141, now seen corresponding path program 1 times [2023-12-21 08:38:12,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:12,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295854384] [2023-12-21 08:38:12,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:12,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:38:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 08:38:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:38:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:38:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 08:38:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:38:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 08:38:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:12,715 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:12,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:12,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295854384] [2023-12-21 08:38:12,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295854384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:12,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:12,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:12,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843924036] [2023-12-21 08:38:12,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:12,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:12,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:12,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:12,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:12,754 INFO L87 Difference]: Start difference. First operand has 510 states, 392 states have (on average 1.7142857142857142) internal successors, (672), 408 states have internal predecessors, (672), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) 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, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:16,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:16,131 INFO L93 Difference]: Finished difference Result 1207 states and 2062 transitions. [2023-12-21 08:38:16,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:38:16,134 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, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2023-12-21 08:38:16,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:16,145 INFO L225 Difference]: With dead ends: 1207 [2023-12-21 08:38:16,145 INFO L226 Difference]: Without dead ends: 691 [2023-12-21 08:38:16,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:38:16,153 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 1295 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 2420 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:16,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 1080 Invalid, 2798 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [378 Valid, 2420 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-21 08:38:16,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-21 08:38:16,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 509. [2023-12-21 08:38:16,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 392 states have (on average 1.6964285714285714) internal successors, (665), 407 states have internal predecessors, (665), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-21 08:38:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 850 transitions. [2023-12-21 08:38:16,275 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 850 transitions. Word has length 89 [2023-12-21 08:38:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:16,276 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 850 transitions. [2023-12-21 08:38:16,276 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, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 850 transitions. [2023-12-21 08:38:16,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 08:38:16,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:16,280 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:16,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 08:38:16,280 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:16,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:16,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1799478340, now seen corresponding path program 1 times [2023-12-21 08:38:16,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:16,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122368321] [2023-12-21 08:38:16,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:16,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 08:38:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:38:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:38:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:38:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:38:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:38:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:38:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:16,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:16,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122368321] [2023-12-21 08:38:16,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122368321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:16,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:16,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:16,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855063091] [2023-12-21 08:38:16,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:16,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:16,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:16,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:16,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:16,546 INFO L87 Difference]: Start difference. First operand 509 states and 850 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:19,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:19,628 INFO L93 Difference]: Finished difference Result 1188 states and 1996 transitions. [2023-12-21 08:38:19,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:38:19,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 90 [2023-12-21 08:38:19,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:19,636 INFO L225 Difference]: With dead ends: 1188 [2023-12-21 08:38:19,636 INFO L226 Difference]: Without dead ends: 691 [2023-12-21 08:38:19,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:19,639 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 1272 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 2414 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 2788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:19,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 1060 Invalid, 2788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 2414 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 08:38:19,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-21 08:38:19,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 509. [2023-12-21 08:38:19,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 392 states have (on average 1.6938775510204083) internal successors, (664), 407 states have internal predecessors, (664), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-21 08:38:19,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 849 transitions. [2023-12-21 08:38:19,715 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 849 transitions. Word has length 90 [2023-12-21 08:38:19,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:19,715 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 849 transitions. [2023-12-21 08:38:19,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:19,716 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 849 transitions. [2023-12-21 08:38:19,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-21 08:38:19,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:19,719 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:19,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 08:38:19,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:19,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:19,719 INFO L85 PathProgramCache]: Analyzing trace with hash 516792649, now seen corresponding path program 1 times [2023-12-21 08:38:19,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:19,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982546305] [2023-12-21 08:38:19,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:19,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 08:38:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 08:38:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 08:38:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:38:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 08:38:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 08:38:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 08:38:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:20,007 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:20,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:20,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982546305] [2023-12-21 08:38:20,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982546305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:20,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:20,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:20,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952359240] [2023-12-21 08:38:20,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:20,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:20,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:20,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:20,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:20,012 INFO L87 Difference]: Start difference. First operand 509 states and 849 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, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:22,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:22,896 INFO L93 Difference]: Finished difference Result 1188 states and 1995 transitions. [2023-12-21 08:38:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:38:22,896 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, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2023-12-21 08:38:22,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:22,899 INFO L225 Difference]: With dead ends: 1188 [2023-12-21 08:38:22,899 INFO L226 Difference]: Without dead ends: 691 [2023-12-21 08:38:22,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:22,902 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 1275 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:22,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 1033 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 08:38:22,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-21 08:38:22,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 509. [2023-12-21 08:38:22,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 392 states have (on average 1.691326530612245) internal successors, (663), 407 states have internal predecessors, (663), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-21 08:38:22,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 848 transitions. [2023-12-21 08:38:22,950 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 848 transitions. Word has length 91 [2023-12-21 08:38:22,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:22,950 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 848 transitions. [2023-12-21 08:38:22,951 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, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:22,951 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 848 transitions. [2023-12-21 08:38:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 08:38:22,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:22,952 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:22,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 08:38:22,952 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:22,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:22,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1956461664, now seen corresponding path program 1 times [2023-12-21 08:38:22,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:22,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358973852] [2023-12-21 08:38:22,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:22,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 08:38:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 08:38:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:38:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:38:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:23,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:38:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 08:38:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 08:38:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:23,188 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:23,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:23,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358973852] [2023-12-21 08:38:23,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358973852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:23,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:23,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:23,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093364566] [2023-12-21 08:38:23,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:23,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:23,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:23,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:23,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:23,190 INFO L87 Difference]: Start difference. First operand 509 states and 848 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:26,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:26,054 INFO L93 Difference]: Finished difference Result 1188 states and 1994 transitions. [2023-12-21 08:38:26,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:38:26,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2023-12-21 08:38:26,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:26,058 INFO L225 Difference]: With dead ends: 1188 [2023-12-21 08:38:26,058 INFO L226 Difference]: Without dead ends: 691 [2023-12-21 08:38:26,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:26,061 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 1271 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:26,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 1036 Invalid, 2777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 2401 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 08:38:26,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-21 08:38:26,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 509. [2023-12-21 08:38:26,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 392 states have (on average 1.6887755102040816) internal successors, (662), 407 states have internal predecessors, (662), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-21 08:38:26,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 847 transitions. [2023-12-21 08:38:26,113 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 847 transitions. Word has length 92 [2023-12-21 08:38:26,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:26,113 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 847 transitions. [2023-12-21 08:38:26,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:26,113 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 847 transitions. [2023-12-21 08:38:26,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 08:38:26,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:26,115 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:26,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 08:38:26,115 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:26,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:26,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1991273261, now seen corresponding path program 1 times [2023-12-21 08:38:26,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:26,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499247882] [2023-12-21 08:38:26,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:26,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 08:38:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 08:38:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:38:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:38:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:38:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:38:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 08:38:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:26,358 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:26,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:26,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499247882] [2023-12-21 08:38:26,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499247882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:26,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:26,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:26,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602845368] [2023-12-21 08:38:26,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:26,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:26,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:26,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:26,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:26,361 INFO L87 Difference]: Start difference. First operand 509 states and 847 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:29,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:29,097 INFO L93 Difference]: Finished difference Result 1188 states and 1993 transitions. [2023-12-21 08:38:29,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:38:29,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-12-21 08:38:29,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:29,101 INFO L225 Difference]: With dead ends: 1188 [2023-12-21 08:38:29,101 INFO L226 Difference]: Without dead ends: 691 [2023-12-21 08:38:29,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:29,103 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1257 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:29,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 1072 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-21 08:38:29,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2023-12-21 08:38:29,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 509. [2023-12-21 08:38:29,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 392 states have (on average 1.6862244897959184) internal successors, (661), 407 states have internal predecessors, (661), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-21 08:38:29,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 846 transitions. [2023-12-21 08:38:29,154 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 846 transitions. Word has length 93 [2023-12-21 08:38:29,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:29,154 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 846 transitions. [2023-12-21 08:38:29,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:29,154 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 846 transitions. [2023-12-21 08:38:29,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 08:38:29,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:29,156 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:29,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 08:38:29,156 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:29,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:29,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1425177860, now seen corresponding path program 1 times [2023-12-21 08:38:29,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:29,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323239210] [2023-12-21 08:38:29,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:29,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 08:38:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:38:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:38:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:38:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 08:38:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:38:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:29,450 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:29,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:29,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323239210] [2023-12-21 08:38:29,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323239210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:29,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:29,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:38:29,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386739720] [2023-12-21 08:38:29,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:29,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:38:29,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:29,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:38:29,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:29,452 INFO L87 Difference]: Start difference. First operand 509 states and 846 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, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:33,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:33,288 INFO L93 Difference]: Finished difference Result 1208 states and 2027 transitions. [2023-12-21 08:38:33,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 08:38:33,289 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, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 94 [2023-12-21 08:38:33,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:33,292 INFO L225 Difference]: With dead ends: 1208 [2023-12-21 08:38:33,292 INFO L226 Difference]: Without dead ends: 715 [2023-12-21 08:38:33,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:38:33,294 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 1382 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 4628 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 5008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 4628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:33,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 1996 Invalid, 5008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 4628 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-21 08:38:33,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-21 08:38:33,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 521. [2023-12-21 08:38:33,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 401 states have (on average 1.6832917705735662) internal successors, (675), 418 states have internal predecessors, (675), 94 states have call successors, (94), 24 states have call predecessors, (94), 25 states have return successors, (96), 91 states have call predecessors, (96), 93 states have call successors, (96) [2023-12-21 08:38:33,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 865 transitions. [2023-12-21 08:38:33,348 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 865 transitions. Word has length 94 [2023-12-21 08:38:33,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:33,348 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 865 transitions. [2023-12-21 08:38:33,348 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, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 865 transitions. [2023-12-21 08:38:33,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 08:38:33,350 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:33,350 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:33,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 08:38:33,350 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:33,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:33,351 INFO L85 PathProgramCache]: Analyzing trace with hash -59877691, now seen corresponding path program 1 times [2023-12-21 08:38:33,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:33,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867630478] [2023-12-21 08:38:33,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:33,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 08:38:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:38:33,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:38:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:38:33,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 08:38:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:38:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:33,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:33,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867630478] [2023-12-21 08:38:33,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867630478] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:33,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:33,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:33,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599883344] [2023-12-21 08:38:33,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:33,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:33,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:33,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:33,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:33,553 INFO L87 Difference]: Start difference. First operand 521 states and 865 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:36,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:36,521 INFO L93 Difference]: Finished difference Result 1247 states and 2096 transitions. [2023-12-21 08:38:36,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 08:38:36,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 94 [2023-12-21 08:38:36,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:36,525 INFO L225 Difference]: With dead ends: 1247 [2023-12-21 08:38:36,525 INFO L226 Difference]: Without dead ends: 746 [2023-12-21 08:38:36,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:38:36,529 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 1394 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1441 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 2717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:36,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1441 Valid, 1002 Invalid, 2717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 08:38:36,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2023-12-21 08:38:36,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 540. [2023-12-21 08:38:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 419 states have (on average 1.6778042959427208) internal successors, (703), 436 states have internal predecessors, (703), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-21 08:38:36,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 892 transitions. [2023-12-21 08:38:36,591 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 892 transitions. Word has length 94 [2023-12-21 08:38:36,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:36,591 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 892 transitions. [2023-12-21 08:38:36,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:36,591 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 892 transitions. [2023-12-21 08:38:36,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 08:38:36,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:36,593 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:36,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 08:38:36,593 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:36,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:36,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1284131941, now seen corresponding path program 1 times [2023-12-21 08:38:36,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:36,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188701484] [2023-12-21 08:38:36,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:36,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 08:38:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:38:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:38:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 08:38:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:38:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:38:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:36,780 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:36,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:36,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188701484] [2023-12-21 08:38:36,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188701484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:36,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:36,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:36,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835630801] [2023-12-21 08:38:36,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:36,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:36,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:36,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:36,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:36,782 INFO L87 Difference]: Start difference. First operand 540 states and 892 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:39,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:39,432 INFO L93 Difference]: Finished difference Result 1222 states and 2031 transitions. [2023-12-21 08:38:39,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:38:39,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2023-12-21 08:38:39,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:39,436 INFO L225 Difference]: With dead ends: 1222 [2023-12-21 08:38:39,436 INFO L226 Difference]: Without dead ends: 738 [2023-12-21 08:38:39,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:38:39,439 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1354 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:39,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 1020 Invalid, 2701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-21 08:38:39,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2023-12-21 08:38:39,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 540. [2023-12-21 08:38:39,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 419 states have (on average 1.665871121718377) internal successors, (698), 436 states have internal predecessors, (698), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-21 08:38:39,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 887 transitions. [2023-12-21 08:38:39,495 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 887 transitions. Word has length 95 [2023-12-21 08:38:39,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:39,495 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 887 transitions. [2023-12-21 08:38:39,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:39,495 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 887 transitions. [2023-12-21 08:38:39,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 08:38:39,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:39,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:39,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 08:38:39,497 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:39,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:39,497 INFO L85 PathProgramCache]: Analyzing trace with hash 667800672, now seen corresponding path program 1 times [2023-12-21 08:38:39,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:39,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217133457] [2023-12-21 08:38:39,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:39,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 08:38:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:38:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:38:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 08:38:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:38:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:38:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:39,713 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:39,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:39,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217133457] [2023-12-21 08:38:39,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217133457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:39,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:39,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:39,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874698555] [2023-12-21 08:38:39,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:39,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:39,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:39,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:39,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:39,715 INFO L87 Difference]: Start difference. First operand 540 states and 887 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:42,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:42,211 INFO L93 Difference]: Finished difference Result 1222 states and 2026 transitions. [2023-12-21 08:38:42,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:38:42,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2023-12-21 08:38:42,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:42,219 INFO L225 Difference]: With dead ends: 1222 [2023-12-21 08:38:42,219 INFO L226 Difference]: Without dead ends: 738 [2023-12-21 08:38:42,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:38:42,221 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1341 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:42,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 1026 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 08:38:42,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2023-12-21 08:38:42,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 540. [2023-12-21 08:38:42,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 419 states have (on average 1.6539379474940334) internal successors, (693), 436 states have internal predecessors, (693), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-21 08:38:42,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 882 transitions. [2023-12-21 08:38:42,280 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 882 transitions. Word has length 96 [2023-12-21 08:38:42,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:42,281 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 882 transitions. [2023-12-21 08:38:42,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:42,281 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 882 transitions. [2023-12-21 08:38:42,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 08:38:42,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:42,282 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:42,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 08:38:42,283 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:42,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:42,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1667881462, now seen corresponding path program 1 times [2023-12-21 08:38:42,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:42,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104841523] [2023-12-21 08:38:42,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:42,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:38:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:38:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:38:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:38:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:38:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:38:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,553 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:42,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:42,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104841523] [2023-12-21 08:38:42,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104841523] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:42,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:42,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:38:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562022692] [2023-12-21 08:38:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:42,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:38:42,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:38:42,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:42,554 INFO L87 Difference]: Start difference. First operand 540 states and 882 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, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:46,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:46,501 INFO L93 Difference]: Finished difference Result 1222 states and 2018 transitions. [2023-12-21 08:38:46,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:38:46,501 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 97 [2023-12-21 08:38:46,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:46,504 INFO L225 Difference]: With dead ends: 1222 [2023-12-21 08:38:46,505 INFO L226 Difference]: Without dead ends: 752 [2023-12-21 08:38:46,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:38:46,507 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1328 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 4586 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 4969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 4586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:46,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 1917 Invalid, 4969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 4586 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-21 08:38:46,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-12-21 08:38:46,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 542. [2023-12-21 08:38:46,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 421 states have (on average 1.6484560570071258) internal successors, (694), 438 states have internal predecessors, (694), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-21 08:38:46,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 883 transitions. [2023-12-21 08:38:46,565 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 883 transitions. Word has length 97 [2023-12-21 08:38:46,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:46,565 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 883 transitions. [2023-12-21 08:38:46,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:46,566 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 883 transitions. [2023-12-21 08:38:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 08:38:46,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:46,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:46,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 08:38:46,567 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:46,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:46,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1997689066, now seen corresponding path program 1 times [2023-12-21 08:38:46,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:46,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42958756] [2023-12-21 08:38:46,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:46,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:38:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:38:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:38:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:38:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:38:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:38:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:46,784 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:46,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:46,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42958756] [2023-12-21 08:38:46,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42958756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:46,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:46,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:46,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805257778] [2023-12-21 08:38:46,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:46,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:46,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:46,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:46,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:46,786 INFO L87 Difference]: Start difference. First operand 542 states and 883 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:49,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:49,368 INFO L93 Difference]: Finished difference Result 1226 states and 2021 transitions. [2023-12-21 08:38:49,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:38:49,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2023-12-21 08:38:49,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:49,372 INFO L225 Difference]: With dead ends: 1226 [2023-12-21 08:38:49,372 INFO L226 Difference]: Without dead ends: 740 [2023-12-21 08:38:49,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:38:49,374 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 1318 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 2300 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 2679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 2300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:49,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 1055 Invalid, 2679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 2300 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-21 08:38:49,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-12-21 08:38:49,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 542. [2023-12-21 08:38:49,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 421 states have (on average 1.6365795724465557) internal successors, (689), 438 states have internal predecessors, (689), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-21 08:38:49,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 878 transitions. [2023-12-21 08:38:49,431 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 878 transitions. Word has length 97 [2023-12-21 08:38:49,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:49,433 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 878 transitions. [2023-12-21 08:38:49,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:49,433 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 878 transitions. [2023-12-21 08:38:49,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 08:38:49,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:49,436 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:49,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 08:38:49,436 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:49,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:49,436 INFO L85 PathProgramCache]: Analyzing trace with hash -698049699, now seen corresponding path program 1 times [2023-12-21 08:38:49,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:49,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022618706] [2023-12-21 08:38:49,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:49,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:38:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:38:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:38:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:38:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:38:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:38:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,681 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:49,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:49,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022618706] [2023-12-21 08:38:49,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022618706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:49,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:49,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:38:49,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590020970] [2023-12-21 08:38:49,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:49,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:38:49,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:49,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:38:49,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:49,683 INFO L87 Difference]: Start difference. First operand 542 states and 878 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:53,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:53,585 INFO L93 Difference]: Finished difference Result 1244 states and 2041 transitions. [2023-12-21 08:38:53,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:38:53,586 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2023-12-21 08:38:53,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:53,589 INFO L225 Difference]: With dead ends: 1244 [2023-12-21 08:38:53,589 INFO L226 Difference]: Without dead ends: 770 [2023-12-21 08:38:53,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:38:53,591 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1331 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 4478 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 4865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 4478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:53,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1928 Invalid, 4865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 4478 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-21 08:38:53,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2023-12-21 08:38:53,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 548. [2023-12-21 08:38:53,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 427 states have (on average 1.6252927400468384) internal successors, (694), 444 states have internal predecessors, (694), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-21 08:38:53,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 883 transitions. [2023-12-21 08:38:53,651 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 883 transitions. Word has length 98 [2023-12-21 08:38:53,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:53,651 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 883 transitions. [2023-12-21 08:38:53,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:53,651 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 883 transitions. [2023-12-21 08:38:53,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 08:38:53,653 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:53,653 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:53,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 08:38:53,653 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:53,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:53,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1774383621, now seen corresponding path program 1 times [2023-12-21 08:38:53,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:53,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847879706] [2023-12-21 08:38:53,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:53,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:38:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:38:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:38:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:38:53,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:38:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:38:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,843 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:53,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:53,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847879706] [2023-12-21 08:38:53,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847879706] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:53,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:53,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:53,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302930433] [2023-12-21 08:38:53,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:53,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:53,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:53,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:53,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:53,845 INFO L87 Difference]: Start difference. First operand 548 states and 883 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:56,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:56,408 INFO L93 Difference]: Finished difference Result 1241 states and 2027 transitions. [2023-12-21 08:38:56,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:38:56,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-12-21 08:38:56,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:56,411 INFO L225 Difference]: With dead ends: 1241 [2023-12-21 08:38:56,412 INFO L226 Difference]: Without dead ends: 749 [2023-12-21 08:38:56,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:38:56,413 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1311 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:56,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 1054 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 08:38:56,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2023-12-21 08:38:56,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 548. [2023-12-21 08:38:56,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 427 states have (on average 1.6135831381733021) internal successors, (689), 444 states have internal predecessors, (689), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-21 08:38:56,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 878 transitions. [2023-12-21 08:38:56,474 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 878 transitions. Word has length 98 [2023-12-21 08:38:56,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:56,474 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 878 transitions. [2023-12-21 08:38:56,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:56,474 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 878 transitions. [2023-12-21 08:38:56,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 08:38:56,476 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:56,476 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:56,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 08:38:56,476 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:56,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:56,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1190585457, now seen corresponding path program 1 times [2023-12-21 08:38:56,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:56,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617723289] [2023-12-21 08:38:56,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:56,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:38:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:38:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 08:38:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 08:38:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:38:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 08:38:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:56,712 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:56,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:56,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617723289] [2023-12-21 08:38:56,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617723289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:56,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:56,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:38:56,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402100520] [2023-12-21 08:38:56,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:56,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:38:56,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:56,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:38:56,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:56,713 INFO L87 Difference]: Start difference. First operand 548 states and 878 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:39:00,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:00,429 INFO L93 Difference]: Finished difference Result 1256 states and 2042 transitions. [2023-12-21 08:39:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:39:00,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2023-12-21 08:39:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:00,433 INFO L225 Difference]: With dead ends: 1256 [2023-12-21 08:39:00,433 INFO L226 Difference]: Without dead ends: 779 [2023-12-21 08:39:00,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:39:00,435 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1318 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 4446 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 4835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 4446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:00,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 1903 Invalid, 4835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 4446 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-21 08:39:00,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2023-12-21 08:39:00,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 556. [2023-12-21 08:39:00,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 435 states have (on average 1.6) internal successors, (696), 452 states have internal predecessors, (696), 94 states have call successors, (94), 25 states have call predecessors, (94), 26 states have return successors, (95), 91 states have call predecessors, (95), 93 states have call successors, (95) [2023-12-21 08:39:00,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 885 transitions. [2023-12-21 08:39:00,495 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 885 transitions. Word has length 99 [2023-12-21 08:39:00,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:00,495 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 885 transitions. [2023-12-21 08:39:00,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:39:00,495 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 885 transitions. [2023-12-21 08:39:00,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 08:39:00,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:00,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:00,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 08:39:00,497 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:00,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:00,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2102226577, now seen corresponding path program 1 times [2023-12-21 08:39:00,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:00,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703458692] [2023-12-21 08:39:00,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:00,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:39:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:39:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 08:39:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 08:39:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 08:39:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:39:00,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:00,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703458692] [2023-12-21 08:39:00,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703458692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:00,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:00,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:39:00,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629035810] [2023-12-21 08:39:00,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:00,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:39:00,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:00,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:39:00,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:39:00,682 INFO L87 Difference]: Start difference. First operand 556 states and 885 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:39:03,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:03,427 INFO L93 Difference]: Finished difference Result 1297 states and 2084 transitions. [2023-12-21 08:39:03,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:39:03,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2023-12-21 08:39:03,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:03,430 INFO L225 Difference]: With dead ends: 1297 [2023-12-21 08:39:03,430 INFO L226 Difference]: Without dead ends: 735 [2023-12-21 08:39:03,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:39:03,432 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 1243 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 2693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:03,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 1044 Invalid, 2693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 08:39:03,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2023-12-21 08:39:03,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 538. [2023-12-21 08:39:03,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 420 states have (on average 1.6047619047619048) internal successors, (674), 435 states have internal predecessors, (674), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-21 08:39:03,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 859 transitions. [2023-12-21 08:39:03,491 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 859 transitions. Word has length 99 [2023-12-21 08:39:03,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:03,492 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 859 transitions. [2023-12-21 08:39:03,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:39:03,492 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 859 transitions. [2023-12-21 08:39:03,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 08:39:03,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:03,493 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:03,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 08:39:03,494 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:03,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:03,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1826790264, now seen corresponding path program 1 times [2023-12-21 08:39:03,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:03,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783463103] [2023-12-21 08:39:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:03,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:39:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:39:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 08:39:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 08:39:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 08:39:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 08:39:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,736 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:39:03,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:03,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783463103] [2023-12-21 08:39:03,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783463103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:03,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:03,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:39:03,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092292939] [2023-12-21 08:39:03,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:03,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:39:03,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:03,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:39:03,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:39:03,737 INFO L87 Difference]: Start difference. First operand 538 states and 859 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:39:07,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:07,406 INFO L93 Difference]: Finished difference Result 1240 states and 2005 transitions. [2023-12-21 08:39:07,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:39:07,407 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2023-12-21 08:39:07,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:07,409 INFO L225 Difference]: With dead ends: 1240 [2023-12-21 08:39:07,409 INFO L226 Difference]: Without dead ends: 761 [2023-12-21 08:39:07,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:39:07,411 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1291 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 4355 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 4740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 4355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:07,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 1908 Invalid, 4740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 4355 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-21 08:39:07,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2023-12-21 08:39:07,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 548. [2023-12-21 08:39:07,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 430 states have (on average 1.5906976744186045) internal successors, (684), 445 states have internal predecessors, (684), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-21 08:39:07,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 869 transitions. [2023-12-21 08:39:07,477 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 869 transitions. Word has length 100 [2023-12-21 08:39:07,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:07,478 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 869 transitions. [2023-12-21 08:39:07,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:39:07,478 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 869 transitions. [2023-12-21 08:39:07,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 08:39:07,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:07,479 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:07,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 08:39:07,480 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:07,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:07,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1848936156, now seen corresponding path program 1 times [2023-12-21 08:39:07,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:07,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419099921] [2023-12-21 08:39:07,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:07,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:39:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:39:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:39:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:39:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 08:39:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,674 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 08:39:07,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:07,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419099921] [2023-12-21 08:39:07,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419099921] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:07,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327563151] [2023-12-21 08:39:07,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:07,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:07,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:07,676 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:07,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 08:39:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:39:07,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:07,931 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 08:39:07,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:07,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327563151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:07,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:07,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-21 08:39:07,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741324118] [2023-12-21 08:39:07,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:07,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 08:39:07,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:07,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 08:39:07,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:39:07,949 INFO L87 Difference]: Start difference. First operand 548 states and 869 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:08,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:08,108 INFO L93 Difference]: Finished difference Result 1499 states and 2452 transitions. [2023-12-21 08:39:08,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 08:39:08,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-12-21 08:39:08,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:08,112 INFO L225 Difference]: With dead ends: 1499 [2023-12-21 08:39:08,112 INFO L226 Difference]: Without dead ends: 1021 [2023-12-21 08:39:08,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:39:08,114 INFO L413 NwaCegarLoop]: 831 mSDtfsCounter, 811 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:08,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1573 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:39:08,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2023-12-21 08:39:08,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1014. [2023-12-21 08:39:08,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 790 states have (on average 1.6164556962025316) internal successors, (1277), 818 states have internal predecessors, (1277), 178 states have call successors, (178), 46 states have call predecessors, (178), 45 states have return successors, (188), 175 states have call predecessors, (188), 176 states have call successors, (188) [2023-12-21 08:39:08,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1643 transitions. [2023-12-21 08:39:08,244 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1643 transitions. Word has length 101 [2023-12-21 08:39:08,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:08,245 INFO L495 AbstractCegarLoop]: Abstraction has 1014 states and 1643 transitions. [2023-12-21 08:39:08,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:08,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1643 transitions. [2023-12-21 08:39:08,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 08:39:08,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:08,247 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:08,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:08,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-21 08:39:08,454 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:08,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:08,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1630081438, now seen corresponding path program 1 times [2023-12-21 08:39:08,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:08,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301436146] [2023-12-21 08:39:08,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:08,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:08,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:39:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:39:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:39:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:39:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 08:39:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 08:39:08,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:08,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301436146] [2023-12-21 08:39:08,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301436146] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:08,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542309293] [2023-12-21 08:39:08,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:08,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:08,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:08,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:08,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 08:39:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:39:08,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:08,975 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 08:39:08,975 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:08,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542309293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:08,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:08,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:39:08,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450694344] [2023-12-21 08:39:08,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:08,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:08,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:08,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:08,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:39:08,977 INFO L87 Difference]: Start difference. First operand 1014 states and 1643 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:09,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:09,452 INFO L93 Difference]: Finished difference Result 1974 states and 3277 transitions. [2023-12-21 08:39:09,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:09,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-12-21 08:39:09,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:09,457 INFO L225 Difference]: With dead ends: 1974 [2023-12-21 08:39:09,457 INFO L226 Difference]: Without dead ends: 1030 [2023-12-21 08:39:09,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:39:09,462 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 767 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:09,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1971 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:39:09,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2023-12-21 08:39:09,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2023-12-21 08:39:09,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 804 states have (on average 1.6181592039800996) internal successors, (1301), 832 states have internal predecessors, (1301), 178 states have call successors, (178), 48 states have call predecessors, (178), 47 states have return successors, (190), 175 states have call predecessors, (190), 176 states have call successors, (190) [2023-12-21 08:39:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1669 transitions. [2023-12-21 08:39:09,607 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1669 transitions. Word has length 101 [2023-12-21 08:39:09,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:09,607 INFO L495 AbstractCegarLoop]: Abstraction has 1030 states and 1669 transitions. [2023-12-21 08:39:09,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:09,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1669 transitions. [2023-12-21 08:39:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 08:39:09,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:09,609 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:09,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:09,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-21 08:39:09,816 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:09,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:09,816 INFO L85 PathProgramCache]: Analyzing trace with hash 859114285, now seen corresponding path program 1 times [2023-12-21 08:39:09,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:09,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756821960] [2023-12-21 08:39:09,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:09,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:39:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:39:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 08:39:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:39:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 08:39:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 08:39:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 08:39:10,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:10,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756821960] [2023-12-21 08:39:10,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756821960] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:10,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644332335] [2023-12-21 08:39:10,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:10,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:10,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:10,025 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:10,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 08:39:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:39:10,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:10,314 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-21 08:39:10,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:10,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644332335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:10,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:10,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:39:10,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660351434] [2023-12-21 08:39:10,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:10,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:10,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:10,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:10,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:39:10,316 INFO L87 Difference]: Start difference. First operand 1030 states and 1669 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:10,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:10,806 INFO L93 Difference]: Finished difference Result 2006 states and 3323 transitions. [2023-12-21 08:39:10,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:10,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2023-12-21 08:39:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:10,810 INFO L225 Difference]: With dead ends: 2006 [2023-12-21 08:39:10,810 INFO L226 Difference]: Without dead ends: 1046 [2023-12-21 08:39:10,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:39:10,814 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 762 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:10,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1971 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:39:10,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2023-12-21 08:39:10,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1046. [2023-12-21 08:39:10,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 818 states have (on average 1.619804400977995) internal successors, (1325), 846 states have internal predecessors, (1325), 178 states have call successors, (178), 50 states have call predecessors, (178), 49 states have return successors, (192), 175 states have call predecessors, (192), 176 states have call successors, (192) [2023-12-21 08:39:10,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1695 transitions. [2023-12-21 08:39:10,932 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1695 transitions. Word has length 104 [2023-12-21 08:39:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:10,933 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1695 transitions. [2023-12-21 08:39:10,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:10,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1695 transitions. [2023-12-21 08:39:10,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 08:39:10,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:10,935 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:10,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:11,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:11,144 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:11,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:11,144 INFO L85 PathProgramCache]: Analyzing trace with hash -930578246, now seen corresponding path program 1 times [2023-12-21 08:39:11,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:11,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927166439] [2023-12-21 08:39:11,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:11,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:39:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:39:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 08:39:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:39:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:39:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:39:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,370 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 08:39:11,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:11,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927166439] [2023-12-21 08:39:11,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927166439] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:11,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359388077] [2023-12-21 08:39:11,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:11,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:11,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:11,372 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:11,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 08:39:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:39:11,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 08:39:11,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359388077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:11,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:11,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:39:11,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576860396] [2023-12-21 08:39:11,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:11,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:11,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:11,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:11,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:39:11,650 INFO L87 Difference]: Start difference. First operand 1046 states and 1695 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:12,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:12,109 INFO L93 Difference]: Finished difference Result 2038 states and 3369 transitions. [2023-12-21 08:39:12,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:12,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2023-12-21 08:39:12,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:12,113 INFO L225 Difference]: With dead ends: 2038 [2023-12-21 08:39:12,113 INFO L226 Difference]: Without dead ends: 1062 [2023-12-21 08:39:12,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:39:12,117 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 774 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:12,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1971 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:39:12,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1062 states. [2023-12-21 08:39:12,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 1062. [2023-12-21 08:39:12,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 832 states have (on average 1.6213942307692308) internal successors, (1349), 860 states have internal predecessors, (1349), 178 states have call successors, (178), 52 states have call predecessors, (178), 51 states have return successors, (194), 175 states have call predecessors, (194), 176 states have call successors, (194) [2023-12-21 08:39:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1721 transitions. [2023-12-21 08:39:12,238 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1721 transitions. Word has length 107 [2023-12-21 08:39:12,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:12,238 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1721 transitions. [2023-12-21 08:39:12,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:12,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1721 transitions. [2023-12-21 08:39:12,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 08:39:12,240 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:12,240 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:12,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:12,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:12,449 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:12,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:12,449 INFO L85 PathProgramCache]: Analyzing trace with hash 2035395329, now seen corresponding path program 1 times [2023-12-21 08:39:12,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:12,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259128117] [2023-12-21 08:39:12,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:12,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:39:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:39:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 08:39:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:39:12,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 08:39:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,639 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 08:39:12,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:12,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259128117] [2023-12-21 08:39:12,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259128117] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:12,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888431552] [2023-12-21 08:39:12,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:12,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:12,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:12,640 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:12,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 08:39:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:39:12,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 08:39:12,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:12,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888431552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:12,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:12,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:39:12,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13054786] [2023-12-21 08:39:12,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:12,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:12,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:12,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:12,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:39:12,920 INFO L87 Difference]: Start difference. First operand 1062 states and 1721 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:13,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:13,384 INFO L93 Difference]: Finished difference Result 2070 states and 3415 transitions. [2023-12-21 08:39:13,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:13,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2023-12-21 08:39:13,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:13,389 INFO L225 Difference]: With dead ends: 2070 [2023-12-21 08:39:13,389 INFO L226 Difference]: Without dead ends: 1078 [2023-12-21 08:39:13,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:39:13,393 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 764 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:13,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 1971 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:39:13,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2023-12-21 08:39:13,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1078. [2023-12-21 08:39:13,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 846 states have (on average 1.6229314420803782) internal successors, (1373), 874 states have internal predecessors, (1373), 178 states have call successors, (178), 54 states have call predecessors, (178), 53 states have return successors, (196), 175 states have call predecessors, (196), 176 states have call successors, (196) [2023-12-21 08:39:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1747 transitions. [2023-12-21 08:39:13,515 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1747 transitions. Word has length 110 [2023-12-21 08:39:13,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:13,515 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1747 transitions. [2023-12-21 08:39:13,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:13,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1747 transitions. [2023-12-21 08:39:13,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 08:39:13,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:13,517 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:13,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:13,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:13,723 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:13,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1517636054, now seen corresponding path program 1 times [2023-12-21 08:39:13,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:13,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482601724] [2023-12-21 08:39:13,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:13,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:39:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:39:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:39:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 08:39:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,078 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 08:39:14,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:14,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482601724] [2023-12-21 08:39:14,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482601724] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:14,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002173170] [2023-12-21 08:39:14,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:14,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:14,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:14,079 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:14,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 08:39:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 08:39:14,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:14,413 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:39:14,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:14,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002173170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:14,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:14,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-21 08:39:14,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278223598] [2023-12-21 08:39:14,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:14,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:14,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:14,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:14,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:14,415 INFO L87 Difference]: Start difference. First operand 1078 states and 1747 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:14,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:14,860 INFO L93 Difference]: Finished difference Result 2104 states and 3463 transitions. [2023-12-21 08:39:14,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:39:14,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2023-12-21 08:39:14,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:14,865 INFO L225 Difference]: With dead ends: 2104 [2023-12-21 08:39:14,865 INFO L226 Difference]: Without dead ends: 1096 [2023-12-21 08:39:14,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:39:14,869 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 752 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 3038 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:14,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 3038 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:39:14,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2023-12-21 08:39:14,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1088. [2023-12-21 08:39:14,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 852 states have (on average 1.6185446009389672) internal successors, (1379), 883 states have internal predecessors, (1379), 180 states have call successors, (180), 55 states have call predecessors, (180), 55 states have return successors, (206), 175 states have call predecessors, (206), 178 states have call successors, (206) [2023-12-21 08:39:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1765 transitions. [2023-12-21 08:39:14,993 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1765 transitions. Word has length 113 [2023-12-21 08:39:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:14,994 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1765 transitions. [2023-12-21 08:39:14,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1765 transitions. [2023-12-21 08:39:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 08:39:14,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:14,997 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:15,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:15,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:15,205 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:15,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:15,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1171500277, now seen corresponding path program 1 times [2023-12-21 08:39:15,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:15,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204261172] [2023-12-21 08:39:15,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:15,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:39:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:39:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:39:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:39:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 08:39:15,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:15,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204261172] [2023-12-21 08:39:15,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204261172] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:15,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44021857] [2023-12-21 08:39:15,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:15,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:15,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:15,623 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:15,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 08:39:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 08:39:15,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:39:15,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:15,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44021857] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:15,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:15,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2023-12-21 08:39:15,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707445217] [2023-12-21 08:39:15,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:15,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 08:39:15,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:15,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 08:39:15,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:39:15,856 INFO L87 Difference]: Start difference. First operand 1088 states and 1765 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:16,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:16,085 INFO L93 Difference]: Finished difference Result 2607 states and 4306 transitions. [2023-12-21 08:39:16,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 08:39:16,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2023-12-21 08:39:16,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:16,091 INFO L225 Difference]: With dead ends: 2607 [2023-12-21 08:39:16,091 INFO L226 Difference]: Without dead ends: 1590 [2023-12-21 08:39:16,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:39:16,095 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 757 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:16,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 2325 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:39:16,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2023-12-21 08:39:16,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1088. [2023-12-21 08:39:16,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 852 states have (on average 1.6173708920187793) internal successors, (1378), 883 states have internal predecessors, (1378), 180 states have call successors, (180), 55 states have call predecessors, (180), 55 states have return successors, (206), 175 states have call predecessors, (206), 178 states have call successors, (206) [2023-12-21 08:39:16,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1764 transitions. [2023-12-21 08:39:16,239 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1764 transitions. Word has length 117 [2023-12-21 08:39:16,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:16,239 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1764 transitions. [2023-12-21 08:39:16,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:16,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1764 transitions. [2023-12-21 08:39:16,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 08:39:16,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:16,241 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:16,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:16,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:16,450 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:16,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:16,450 INFO L85 PathProgramCache]: Analyzing trace with hash 751727757, now seen corresponding path program 1 times [2023-12-21 08:39:16,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:16,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236080853] [2023-12-21 08:39:16,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:16,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:39:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:39:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:39:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:39:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,800 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 08:39:16,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:16,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236080853] [2023-12-21 08:39:16,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236080853] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:16,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280730547] [2023-12-21 08:39:16,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:16,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:16,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:16,801 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:16,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 08:39:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:39:17,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:17,085 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:39:17,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:17,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280730547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:17,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:17,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:17,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558418031] [2023-12-21 08:39:17,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:17,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:17,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:17,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:17,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:17,086 INFO L87 Difference]: Start difference. First operand 1088 states and 1764 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:17,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:17,316 INFO L93 Difference]: Finished difference Result 2682 states and 4381 transitions. [2023-12-21 08:39:17,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:17,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2023-12-21 08:39:17,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:17,322 INFO L225 Difference]: With dead ends: 2682 [2023-12-21 08:39:17,322 INFO L226 Difference]: Without dead ends: 1666 [2023-12-21 08:39:17,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:17,325 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 339 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 2561 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:17,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 2561 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:39:17,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2023-12-21 08:39:17,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1662. [2023-12-21 08:39:17,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1662 states, 1306 states have (on average 1.5949464012251149) internal successors, (2083), 1341 states have internal predecessors, (2083), 264 states have call successors, (264), 91 states have call predecessors, (264), 91 states have return successors, (341), 255 states have call predecessors, (341), 260 states have call successors, (341) [2023-12-21 08:39:17,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2688 transitions. [2023-12-21 08:39:17,502 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2688 transitions. Word has length 117 [2023-12-21 08:39:17,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:17,502 INFO L495 AbstractCegarLoop]: Abstraction has 1662 states and 2688 transitions. [2023-12-21 08:39:17,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:17,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2688 transitions. [2023-12-21 08:39:17,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 08:39:17,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:17,504 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:17,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:17,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-12-21 08:39:17,705 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:17,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:17,705 INFO L85 PathProgramCache]: Analyzing trace with hash 953551691, now seen corresponding path program 1 times [2023-12-21 08:39:17,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:17,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247113648] [2023-12-21 08:39:17,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:17,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:39:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:39:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:39:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:39:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,059 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 08:39:18,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:18,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247113648] [2023-12-21 08:39:18,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247113648] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:18,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997737049] [2023-12-21 08:39:18,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:18,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:18,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:18,060 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:18,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 08:39:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:39:18,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:18,321 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:39:18,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:18,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997737049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:18,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:18,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2023-12-21 08:39:18,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902855122] [2023-12-21 08:39:18,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:18,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 08:39:18,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:18,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 08:39:18,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:39:18,323 INFO L87 Difference]: Start difference. First operand 1662 states and 2688 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:18,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:18,512 INFO L93 Difference]: Finished difference Result 3007 states and 4858 transitions. [2023-12-21 08:39:18,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 08:39:18,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2023-12-21 08:39:18,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:18,519 INFO L225 Difference]: With dead ends: 3007 [2023-12-21 08:39:18,519 INFO L226 Difference]: Without dead ends: 1417 [2023-12-21 08:39:18,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:39:18,524 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 545 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:18,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1253 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:39:18,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2023-12-21 08:39:18,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1417. [2023-12-21 08:39:18,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1112 states have (on average 1.5737410071942446) internal successors, (1750), 1139 states have internal predecessors, (1750), 223 states have call successors, (223), 83 states have call predecessors, (223), 81 states have return successors, (278), 218 states have call predecessors, (278), 219 states have call successors, (278) [2023-12-21 08:39:18,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 2251 transitions. [2023-12-21 08:39:18,722 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 2251 transitions. Word has length 117 [2023-12-21 08:39:18,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:18,722 INFO L495 AbstractCegarLoop]: Abstraction has 1417 states and 2251 transitions. [2023-12-21 08:39:18,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:18,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 2251 transitions. [2023-12-21 08:39:18,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 08:39:18,724 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:18,724 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:18,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:18,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-21 08:39:18,932 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:18,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:18,932 INFO L85 PathProgramCache]: Analyzing trace with hash 533930144, now seen corresponding path program 1 times [2023-12-21 08:39:18,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:18,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742922220] [2023-12-21 08:39:18,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:18,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:39:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:39:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:39:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:39:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 08:39:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 08:39:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:39:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:39:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 08:39:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,290 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-21 08:39:19,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:19,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742922220] [2023-12-21 08:39:19,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742922220] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:19,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521279954] [2023-12-21 08:39:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:19,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:19,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:19,292 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:19,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 08:39:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:39:19,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:19,526 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-21 08:39:19,526 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:19,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521279954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:19,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:19,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:19,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944547013] [2023-12-21 08:39:19,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:19,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:19,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:19,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:19,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:19,528 INFO L87 Difference]: Start difference. First operand 1417 states and 2251 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:19,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:19,837 INFO L93 Difference]: Finished difference Result 2840 states and 4576 transitions. [2023-12-21 08:39:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:19,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2023-12-21 08:39:19,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:19,842 INFO L225 Difference]: With dead ends: 2840 [2023-12-21 08:39:19,842 INFO L226 Difference]: Without dead ends: 1495 [2023-12-21 08:39:19,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:19,846 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 213 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:19,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2175 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:39:19,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2023-12-21 08:39:20,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1495. [2023-12-21 08:39:20,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1188 states have (on average 1.595959595959596) internal successors, (1896), 1215 states have internal predecessors, (1896), 223 states have call successors, (223), 85 states have call predecessors, (223), 83 states have return successors, (278), 218 states have call predecessors, (278), 219 states have call successors, (278) [2023-12-21 08:39:20,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2397 transitions. [2023-12-21 08:39:20,008 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2397 transitions. Word has length 143 [2023-12-21 08:39:20,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:20,008 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 2397 transitions. [2023-12-21 08:39:20,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:20,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2397 transitions. [2023-12-21 08:39:20,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-21 08:39:20,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:20,010 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:20,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:20,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-21 08:39:20,211 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:20,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:20,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1421147727, now seen corresponding path program 1 times [2023-12-21 08:39:20,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:20,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814125013] [2023-12-21 08:39:20,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:20,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:39:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:39:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:39:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:39:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 08:39:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 08:39:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 08:39:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-21 08:39:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-12-21 08:39:20,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:20,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814125013] [2023-12-21 08:39:20,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814125013] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:20,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90919474] [2023-12-21 08:39:20,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:20,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:20,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:20,534 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:20,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 08:39:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:39:20,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:20,787 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-21 08:39:20,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:20,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90919474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:20,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:20,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:20,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183208604] [2023-12-21 08:39:20,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:20,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:20,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:20,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:20,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:20,789 INFO L87 Difference]: Start difference. First operand 1495 states and 2397 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:21,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:21,067 INFO L93 Difference]: Finished difference Result 2996 states and 4866 transitions. [2023-12-21 08:39:21,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:21,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2023-12-21 08:39:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:21,073 INFO L225 Difference]: With dead ends: 2996 [2023-12-21 08:39:21,074 INFO L226 Difference]: Without dead ends: 1573 [2023-12-21 08:39:21,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:21,078 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 211 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:21,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2175 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:39:21,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2023-12-21 08:39:21,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1573. [2023-12-21 08:39:21,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1264 states have (on average 1.615506329113924) internal successors, (2042), 1291 states have internal predecessors, (2042), 223 states have call successors, (223), 87 states have call predecessors, (223), 85 states have return successors, (278), 218 states have call predecessors, (278), 219 states have call successors, (278) [2023-12-21 08:39:21,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2543 transitions. [2023-12-21 08:39:21,260 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2543 transitions. Word has length 148 [2023-12-21 08:39:21,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:21,261 INFO L495 AbstractCegarLoop]: Abstraction has 1573 states and 2543 transitions. [2023-12-21 08:39:21,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:21,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2543 transitions. [2023-12-21 08:39:21,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 08:39:21,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:21,264 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:21,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:21,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-21 08:39:21,464 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:21,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:21,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1129209121, now seen corresponding path program 1 times [2023-12-21 08:39:21,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:21,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748147045] [2023-12-21 08:39:21,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:21,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:39:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:39:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:39:21,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:39:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:39:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:39:21,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 08:39:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 08:39:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:21,819 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-12-21 08:39:21,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:21,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748147045] [2023-12-21 08:39:21,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748147045] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:21,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087514042] [2023-12-21 08:39:21,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:21,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:21,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:21,820 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:21,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 08:39:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:22,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:39:22,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 08:39:22,070 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:22,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087514042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:22,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:22,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:22,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699913348] [2023-12-21 08:39:22,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:22,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:22,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:22,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:22,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:22,072 INFO L87 Difference]: Start difference. First operand 1573 states and 2543 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:22,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:22,369 INFO L93 Difference]: Finished difference Result 3152 states and 5156 transitions. [2023-12-21 08:39:22,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:22,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2023-12-21 08:39:22,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:22,376 INFO L225 Difference]: With dead ends: 3152 [2023-12-21 08:39:22,377 INFO L226 Difference]: Without dead ends: 1651 [2023-12-21 08:39:22,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:22,381 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 209 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:22,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2175 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:39:22,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2023-12-21 08:39:22,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1651. [2023-12-21 08:39:22,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1340 states have (on average 1.6328358208955225) internal successors, (2188), 1367 states have internal predecessors, (2188), 223 states have call successors, (223), 89 states have call predecessors, (223), 87 states have return successors, (278), 218 states have call predecessors, (278), 219 states have call successors, (278) [2023-12-21 08:39:22,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 2689 transitions. [2023-12-21 08:39:22,561 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 2689 transitions. Word has length 152 [2023-12-21 08:39:22,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:22,561 INFO L495 AbstractCegarLoop]: Abstraction has 1651 states and 2689 transitions. [2023-12-21 08:39:22,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:22,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 2689 transitions. [2023-12-21 08:39:22,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-21 08:39:22,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:22,564 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:22,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-21 08:39:22,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-21 08:39:22,764 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:22,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:22,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1169663808, now seen corresponding path program 1 times [2023-12-21 08:39:22,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:22,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338643781] [2023-12-21 08:39:22,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:22,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:22,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:22,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:22,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:39:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:39:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:39:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:39:23,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 08:39:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 08:39:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 08:39:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 08:39:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,060 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-21 08:39:23,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:23,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338643781] [2023-12-21 08:39:23,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338643781] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:23,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784526547] [2023-12-21 08:39:23,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:23,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:23,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:23,062 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:23,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 08:39:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:39:23,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:23,305 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 08:39:23,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:23,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784526547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:23,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:23,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:23,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557202524] [2023-12-21 08:39:23,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:23,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:23,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:23,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:23,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:23,307 INFO L87 Difference]: Start difference. First operand 1651 states and 2689 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:23,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:23,600 INFO L93 Difference]: Finished difference Result 3308 states and 5446 transitions. [2023-12-21 08:39:23,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:23,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2023-12-21 08:39:23,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:23,606 INFO L225 Difference]: With dead ends: 3308 [2023-12-21 08:39:23,606 INFO L226 Difference]: Without dead ends: 1729 [2023-12-21 08:39:23,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:23,609 INFO L413 NwaCegarLoop]: 733 mSDtfsCounter, 207 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:23,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2175 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:39:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2023-12-21 08:39:23,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1729. [2023-12-21 08:39:23,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1416 states have (on average 1.6483050847457628) internal successors, (2334), 1443 states have internal predecessors, (2334), 223 states have call successors, (223), 91 states have call predecessors, (223), 89 states have return successors, (278), 218 states have call predecessors, (278), 219 states have call successors, (278) [2023-12-21 08:39:23,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2835 transitions. [2023-12-21 08:39:23,771 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2835 transitions. Word has length 155 [2023-12-21 08:39:23,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:23,771 INFO L495 AbstractCegarLoop]: Abstraction has 1729 states and 2835 transitions. [2023-12-21 08:39:23,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:23,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2835 transitions. [2023-12-21 08:39:23,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-21 08:39:23,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:23,774 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:23,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:23,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-21 08:39:23,981 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:23,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:23,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1526474446, now seen corresponding path program 1 times [2023-12-21 08:39:23,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:23,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345529664] [2023-12-21 08:39:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:23,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:39:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:39:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:39:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:39:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 08:39:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 08:39:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 08:39:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 08:39:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-21 08:39:24,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:24,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345529664] [2023-12-21 08:39:24,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345529664] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:24,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294701364] [2023-12-21 08:39:24,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:24,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:24,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:24,281 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:24,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 08:39:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:24,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:39:24,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-12-21 08:39:24,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:24,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294701364] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:24,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:24,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:24,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664535596] [2023-12-21 08:39:24,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:24,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:24,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:24,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:24,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:24,504 INFO L87 Difference]: Start difference. First operand 1729 states and 2835 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:24,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:24,752 INFO L93 Difference]: Finished difference Result 3442 states and 5714 transitions. [2023-12-21 08:39:24,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:24,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 157 [2023-12-21 08:39:24,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:24,758 INFO L225 Difference]: With dead ends: 3442 [2023-12-21 08:39:24,758 INFO L226 Difference]: Without dead ends: 1785 [2023-12-21 08:39:24,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:24,764 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 60 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:24,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 2384 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:39:24,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2023-12-21 08:39:24,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1737. [2023-12-21 08:39:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1737 states, 1424 states have (on average 1.6446629213483146) internal successors, (2342), 1451 states have internal predecessors, (2342), 223 states have call successors, (223), 91 states have call predecessors, (223), 89 states have return successors, (278), 218 states have call predecessors, (278), 219 states have call successors, (278) [2023-12-21 08:39:24,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1737 states to 1737 states and 2843 transitions. [2023-12-21 08:39:24,928 INFO L78 Accepts]: Start accepts. Automaton has 1737 states and 2843 transitions. Word has length 157 [2023-12-21 08:39:24,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:24,928 INFO L495 AbstractCegarLoop]: Abstraction has 1737 states and 2843 transitions. [2023-12-21 08:39:24,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:24,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1737 states and 2843 transitions. [2023-12-21 08:39:24,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-21 08:39:24,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:24,931 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:24,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-21 08:39:25,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:25,137 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:25,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:25,138 INFO L85 PathProgramCache]: Analyzing trace with hash -2067283639, now seen corresponding path program 1 times [2023-12-21 08:39:25,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:25,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296354043] [2023-12-21 08:39:25,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:25,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:39:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:39:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:39:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 08:39:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:39:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:39:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 08:39:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 08:39:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 08:39:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-21 08:39:25,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:25,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296354043] [2023-12-21 08:39:25,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296354043] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:25,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765394045] [2023-12-21 08:39:25,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:25,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:25,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:25,408 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:25,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 08:39:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:25,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-21 08:39:25,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:25,849 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-12-21 08:39:25,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:25,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765394045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:25,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:25,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2023-12-21 08:39:25,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740663545] [2023-12-21 08:39:25,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:25,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:39:25,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:25,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:39:25,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:39:25,851 INFO L87 Difference]: Start difference. First operand 1737 states and 2843 transitions. Second operand has 9 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 08:39:28,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:28,156 INFO L93 Difference]: Finished difference Result 5353 states and 8925 transitions. [2023-12-21 08:39:28,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 08:39:28,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 164 [2023-12-21 08:39:28,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:28,171 INFO L225 Difference]: With dead ends: 5353 [2023-12-21 08:39:28,172 INFO L226 Difference]: Without dead ends: 3348 [2023-12-21 08:39:28,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2023-12-21 08:39:28,179 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 1860 mSDsluCounter, 1844 mSDsCounter, 0 mSdLazyCounter, 3749 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1959 SdHoareTripleChecker+Valid, 2198 SdHoareTripleChecker+Invalid, 4196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 3749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:28,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1959 Valid, 2198 Invalid, 4196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 3749 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 08:39:28,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3348 states. [2023-12-21 08:39:28,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3348 to 3276. [2023-12-21 08:39:28,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3276 states, 2631 states have (on average 1.6571645762067655) internal successors, (4360), 2711 states have internal predecessors, (4360), 463 states have call successors, (463), 163 states have call predecessors, (463), 181 states have return successors, (605), 459 states have call predecessors, (605), 459 states have call successors, (605) [2023-12-21 08:39:28,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3276 states to 3276 states and 5428 transitions. [2023-12-21 08:39:28,593 INFO L78 Accepts]: Start accepts. Automaton has 3276 states and 5428 transitions. Word has length 164 [2023-12-21 08:39:28,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:28,593 INFO L495 AbstractCegarLoop]: Abstraction has 3276 states and 5428 transitions. [2023-12-21 08:39:28,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 08:39:28,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3276 states and 5428 transitions. [2023-12-21 08:39:28,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-21 08:39:28,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:28,601 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:28,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:28,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:28,806 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:28,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:28,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1461084985, now seen corresponding path program 1 times [2023-12-21 08:39:28,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:28,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375702409] [2023-12-21 08:39:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:28,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:39:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:39:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:39:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 08:39:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:39:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:39:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 08:39:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 08:39:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 08:39:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:29,028 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-12-21 08:39:29,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:29,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375702409] [2023-12-21 08:39:29,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375702409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:29,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:29,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:39:29,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299329237] [2023-12-21 08:39:29,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:29,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:39:29,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:29,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:39:29,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:39:29,031 INFO L87 Difference]: Start difference. First operand 3276 states and 5428 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 08:39:32,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:32,780 INFO L93 Difference]: Finished difference Result 7395 states and 12433 transitions. [2023-12-21 08:39:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-21 08:39:32,780 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 164 [2023-12-21 08:39:32,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:32,795 INFO L225 Difference]: With dead ends: 7395 [2023-12-21 08:39:32,796 INFO L226 Difference]: Without dead ends: 4127 [2023-12-21 08:39:32,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:39:32,803 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 1343 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 3347 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 3679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 3347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:32,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 2558 Invalid, 3679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 3347 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 08:39:32,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4127 states. [2023-12-21 08:39:33,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4127 to 3290. [2023-12-21 08:39:33,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3290 states, 2645 states have (on average 1.6449905482041587) internal successors, (4351), 2725 states have internal predecessors, (4351), 463 states have call successors, (463), 163 states have call predecessors, (463), 181 states have return successors, (605), 459 states have call predecessors, (605), 459 states have call successors, (605) [2023-12-21 08:39:33,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 5419 transitions. [2023-12-21 08:39:33,235 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 5419 transitions. Word has length 164 [2023-12-21 08:39:33,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:33,236 INFO L495 AbstractCegarLoop]: Abstraction has 3290 states and 5419 transitions. [2023-12-21 08:39:33,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 08:39:33,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 5419 transitions. [2023-12-21 08:39:33,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-21 08:39:33,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:33,242 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:33,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 08:39:33,242 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:33,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:33,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1199422218, now seen corresponding path program 1 times [2023-12-21 08:39:33,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:33,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754692632] [2023-12-21 08:39:33,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:33,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:39:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:39:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 08:39:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 08:39:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:39:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:39:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:39:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:39:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-21 08:39:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-21 08:39:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 08:39:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-12-21 08:39:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,463 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-12-21 08:39:33,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:33,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754692632] [2023-12-21 08:39:33,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754692632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:33,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:33,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:39:33,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769991983] [2023-12-21 08:39:33,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:33,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:39:33,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:33,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:39:33,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:39:33,465 INFO L87 Difference]: Start difference. First operand 3290 states and 5419 transitions. Second operand has 9 states, 8 states have (on average 13.0) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 08:39:37,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:37,047 INFO L93 Difference]: Finished difference Result 7079 states and 11961 transitions. [2023-12-21 08:39:37,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:39:37,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 175 [2023-12-21 08:39:37,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:37,060 INFO L225 Difference]: With dead ends: 7079 [2023-12-21 08:39:37,060 INFO L226 Difference]: Without dead ends: 3672 [2023-12-21 08:39:37,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:39:37,068 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 1376 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 3285 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 3599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 3285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:37,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 2590 Invalid, 3599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 3285 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-21 08:39:37,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2023-12-21 08:39:37,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 2910. [2023-12-21 08:39:37,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2910 states, 2365 states have (on average 1.6904862579281184) internal successors, (3998), 2432 states have internal predecessors, (3998), 383 states have call successors, (383), 151 states have call predecessors, (383), 161 states have return successors, (475), 374 states have call predecessors, (475), 379 states have call successors, (475) [2023-12-21 08:39:37,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2910 states to 2910 states and 4856 transitions. [2023-12-21 08:39:37,473 INFO L78 Accepts]: Start accepts. Automaton has 2910 states and 4856 transitions. Word has length 175 [2023-12-21 08:39:37,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:37,473 INFO L495 AbstractCegarLoop]: Abstraction has 2910 states and 4856 transitions. [2023-12-21 08:39:37,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 08:39:37,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2910 states and 4856 transitions. [2023-12-21 08:39:37,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2023-12-21 08:39:37,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:37,484 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:37,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 08:39:37,485 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:37,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:37,485 INFO L85 PathProgramCache]: Analyzing trace with hash -139669544, now seen corresponding path program 1 times [2023-12-21 08:39:37,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:37,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826084982] [2023-12-21 08:39:37,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:37,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:39:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:39:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:38,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:39:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 08:39:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:39:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:39:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:39:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 08:39:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-21 08:39:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:39:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:39:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:39:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-21 08:39:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:39:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-21 08:39:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-21 08:39:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2023-12-21 08:39:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-21 08:39:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-21 08:39:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-21 08:39:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-21 08:39:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-21 08:39:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-21 08:39:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-21 08:39:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-21 08:39:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-21 08:39:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 40 proven. 116 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2023-12-21 08:39:38,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:38,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826084982] [2023-12-21 08:39:38,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826084982] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:38,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475948738] [2023-12-21 08:39:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:38,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:38,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:38,376 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:38,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 08:39:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:38,824 INFO L262 TraceCheckSpWp]: Trace formula consists of 3183 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 08:39:38,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:39,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 359 proven. 48 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2023-12-21 08:39:39,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:39:39,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 57 proven. 97 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked. [2023-12-21 08:39:39,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475948738] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:39:39,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:39:39,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 14] total 34 [2023-12-21 08:39:39,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258281007] [2023-12-21 08:39:39,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:39:39,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 08:39:39,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:39,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 08:39:39,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 08:39:39,847 INFO L87 Difference]: Start difference. First operand 2910 states and 4856 transitions. Second operand has 34 states, 31 states have (on average 11.193548387096774) internal successors, (347), 25 states have internal predecessors, (347), 17 states have call successors, (94), 11 states have call predecessors, (94), 14 states have return successors, (93), 22 states have call predecessors, (93), 17 states have call successors, (93) [2023-12-21 08:41:49,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:49,430 INFO L93 Difference]: Finished difference Result 30157 states and 56077 transitions. [2023-12-21 08:41:49,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 488 states. [2023-12-21 08:41:49,431 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 31 states have (on average 11.193548387096774) internal successors, (347), 25 states have internal predecessors, (347), 17 states have call successors, (94), 11 states have call predecessors, (94), 14 states have return successors, (93), 22 states have call predecessors, (93), 17 states have call successors, (93) Word has length 442 [2023-12-21 08:41:49,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:49,549 INFO L225 Difference]: With dead ends: 30157 [2023-12-21 08:41:49,549 INFO L226 Difference]: Without dead ends: 27208 [2023-12-21 08:41:49,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1714 GetRequests, 1194 SyntacticMatches, 4 SemanticMatches, 516 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123689 ImplicationChecksByTransitivity, 65.9s TimeCoverageRelationStatistics Valid=22128, Invalid=245678, Unknown=0, NotChecked=0, Total=267806 [2023-12-21 08:41:49,620 INFO L413 NwaCegarLoop]: 2458 mSDtfsCounter, 48257 mSDsluCounter, 24782 mSDsCounter, 0 mSdLazyCounter, 84957 mSolverCounterSat, 22623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48257 SdHoareTripleChecker+Valid, 27240 SdHoareTripleChecker+Invalid, 107580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 22623 IncrementalHoareTripleChecker+Valid, 84957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:49,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48257 Valid, 27240 Invalid, 107580 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [22623 Valid, 84957 Invalid, 0 Unknown, 0 Unchecked, 54.6s Time] [2023-12-21 08:41:49,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27208 states. [2023-12-21 08:41:52,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27208 to 15191. [2023-12-21 08:41:52,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15191 states, 12312 states have (on average 1.6614684860298896) internal successors, (20456), 12663 states have internal predecessors, (20456), 1906 states have call successors, (1906), 844 states have call predecessors, (1906), 972 states have return successors, (2658), 1947 states have call predecessors, (2658), 1888 states have call successors, (2658) [2023-12-21 08:41:52,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15191 states to 15191 states and 25020 transitions. [2023-12-21 08:41:52,238 INFO L78 Accepts]: Start accepts. Automaton has 15191 states and 25020 transitions. Word has length 442 [2023-12-21 08:41:52,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:52,238 INFO L495 AbstractCegarLoop]: Abstraction has 15191 states and 25020 transitions. [2023-12-21 08:41:52,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 31 states have (on average 11.193548387096774) internal successors, (347), 25 states have internal predecessors, (347), 17 states have call successors, (94), 11 states have call predecessors, (94), 14 states have return successors, (93), 22 states have call predecessors, (93), 17 states have call successors, (93) [2023-12-21 08:41:52,239 INFO L276 IsEmpty]: Start isEmpty. Operand 15191 states and 25020 transitions. [2023-12-21 08:41:52,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-12-21 08:41:52,275 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:52,275 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 11, 11, 10, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:52,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 08:41:52,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-12-21 08:41:52,476 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:52,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:52,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1484049343, now seen corresponding path program 1 times [2023-12-21 08:41:52,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:52,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344719179] [2023-12-21 08:41:52,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:52,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:52,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:52,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:52,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:41:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:41:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:41:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:41:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-21 08:41:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:41:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:41:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:41:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-21 08:41:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:41:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:41:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:41:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-12-21 08:41:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-21 08:41:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-12-21 08:41:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-21 08:41:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-12-21 08:41:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2023-12-21 08:41:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2023-12-21 08:41:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-21 08:41:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2023-12-21 08:41:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2023-12-21 08:41:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2023-12-21 08:41:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2023-12-21 08:41:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 32 proven. 41 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-12-21 08:41:53,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:53,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344719179] [2023-12-21 08:41:53,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344719179] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:53,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897973971] [2023-12-21 08:41:53,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:53,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:53,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:53,275 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:41:53,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-21 08:41:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:53,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 3213 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:41:53,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 894 trivial. 0 not checked. [2023-12-21 08:41:53,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:53,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897973971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:53,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:53,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2023-12-21 08:41:53,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751327108] [2023-12-21 08:41:53,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:53,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:41:53,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:53,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:41:53,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-12-21 08:41:53,822 INFO L87 Difference]: Start difference. First operand 15191 states and 25020 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-21 08:41:57,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:57,192 INFO L93 Difference]: Finished difference Result 32632 states and 54184 transitions. [2023-12-21 08:41:57,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:41:57,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 450 [2023-12-21 08:41:57,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:57,239 INFO L225 Difference]: With dead ends: 32632 [2023-12-21 08:41:57,239 INFO L226 Difference]: Without dead ends: 17507 [2023-12-21 08:41:57,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:41:57,271 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 159 mSDsluCounter, 3128 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 3922 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:57,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 3922 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:57,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17507 states. [2023-12-21 08:41:59,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17507 to 15333. [2023-12-21 08:41:59,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15333 states, 12416 states have (on average 1.6559278350515463) internal successors, (20560), 12783 states have internal predecessors, (20560), 1906 states have call successors, (1906), 844 states have call predecessors, (1906), 1010 states have return successors, (2736), 1969 states have call predecessors, (2736), 1888 states have call successors, (2736) [2023-12-21 08:41:59,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15333 states to 15333 states and 25202 transitions. [2023-12-21 08:41:59,606 INFO L78 Accepts]: Start accepts. Automaton has 15333 states and 25202 transitions. Word has length 450 [2023-12-21 08:41:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:59,606 INFO L495 AbstractCegarLoop]: Abstraction has 15333 states and 25202 transitions. [2023-12-21 08:41:59,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-21 08:41:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 15333 states and 25202 transitions. [2023-12-21 08:41:59,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-12-21 08:41:59,646 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:59,646 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:59,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-21 08:41:59,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:59,847 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:59,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:59,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1658845775, now seen corresponding path program 1 times [2023-12-21 08:41:59,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:59,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929987540] [2023-12-21 08:41:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:59,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:42:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:42:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:42:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:42:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:42:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:42:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:42:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 08:42:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 08:42:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:42:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:42:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:42:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 08:42:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:42:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 08:42:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:42:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:42:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-12-21 08:42:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-21 08:42:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-21 08:42:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-21 08:42:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-12-21 08:42:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2023-12-21 08:42:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 434 [2023-12-21 08:42:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-21 08:42:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2023-12-21 08:42:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2023-12-21 08:42:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2023-12-21 08:42:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2023-12-21 08:42:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-12-21 08:42:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:00,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 61 proven. 109 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2023-12-21 08:42:00,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:00,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929987540] [2023-12-21 08:42:00,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929987540] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:00,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647382295] [2023-12-21 08:42:00,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:00,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:00,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:00,580 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:42:00,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-21 08:42:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:01,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 3390 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:42:01,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:01,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 774 proven. 3 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2023-12-21 08:42:01,082 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:42:01,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 115 proven. 19 refuted. 0 times theorem prover too weak. 1121 trivial. 0 not checked. [2023-12-21 08:42:01,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647382295] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:42:01,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:42:01,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 6] total 21 [2023-12-21 08:42:01,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202162559] [2023-12-21 08:42:01,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:42:01,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 08:42:01,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:01,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 08:42:01,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:42:01,420 INFO L87 Difference]: Start difference. First operand 15333 states and 25202 transitions. Second operand has 21 states, 21 states have (on average 16.523809523809526) internal successors, (347), 17 states have internal predecessors, (347), 6 states have call successors, (81), 7 states have call predecessors, (81), 11 states have return successors, (80), 8 states have call predecessors, (80), 6 states have call successors, (80) [2023-12-21 08:42:30,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:30,950 INFO L93 Difference]: Finished difference Result 50892 states and 89246 transitions. [2023-12-21 08:42:30,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-12-21 08:42:30,951 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 16.523809523809526) internal successors, (347), 17 states have internal predecessors, (347), 6 states have call successors, (81), 7 states have call predecessors, (81), 11 states have return successors, (80), 8 states have call predecessors, (80), 6 states have call successors, (80) Word has length 510 [2023-12-21 08:42:30,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:31,093 INFO L225 Difference]: With dead ends: 50892 [2023-12-21 08:42:31,093 INFO L226 Difference]: Without dead ends: 34359 [2023-12-21 08:42:31,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1252 GetRequests, 1171 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2282 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=1513, Invalid=5293, Unknown=0, NotChecked=0, Total=6806 [2023-12-21 08:42:31,161 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 11645 mSDsluCounter, 5078 mSDsCounter, 0 mSdLazyCounter, 13886 mSolverCounterSat, 5187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11645 SdHoareTripleChecker+Valid, 5704 SdHoareTripleChecker+Invalid, 19073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5187 IncrementalHoareTripleChecker+Valid, 13886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:31,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11645 Valid, 5704 Invalid, 19073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5187 Valid, 13886 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-12-21 08:42:31,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34359 states. [2023-12-21 08:42:35,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34359 to 24000. [2023-12-21 08:42:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24000 states, 19221 states have (on average 1.6334217782633578) internal successors, (31396), 19792 states have internal predecessors, (31396), 3107 states have call successors, (3107), 1420 states have call predecessors, (3107), 1671 states have return successors, (4590), 3231 states have call predecessors, (4590), 3084 states have call successors, (4590) [2023-12-21 08:42:35,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24000 states to 24000 states and 39093 transitions. [2023-12-21 08:42:35,447 INFO L78 Accepts]: Start accepts. Automaton has 24000 states and 39093 transitions. Word has length 510 [2023-12-21 08:42:35,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:35,448 INFO L495 AbstractCegarLoop]: Abstraction has 24000 states and 39093 transitions. [2023-12-21 08:42:35,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 16.523809523809526) internal successors, (347), 17 states have internal predecessors, (347), 6 states have call successors, (81), 7 states have call predecessors, (81), 11 states have return successors, (80), 8 states have call predecessors, (80), 6 states have call successors, (80) [2023-12-21 08:42:35,448 INFO L276 IsEmpty]: Start isEmpty. Operand 24000 states and 39093 transitions. [2023-12-21 08:42:35,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2023-12-21 08:42:35,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:35,497 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:42:35,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-21 08:42:35,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:35,698 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:35,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:35,699 INFO L85 PathProgramCache]: Analyzing trace with hash 244960002, now seen corresponding path program 1 times [2023-12-21 08:42:35,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:35,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62758381] [2023-12-21 08:42:35,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:35,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:42:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:42:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:42:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:42:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:42:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:42:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:42:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 08:42:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 08:42:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:42:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:42:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:42:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 08:42:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:42:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 08:42:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:42:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:42:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-12-21 08:42:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2023-12-21 08:42:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-21 08:42:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2023-12-21 08:42:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2023-12-21 08:42:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2023-12-21 08:42:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2023-12-21 08:42:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2023-12-21 08:42:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2023-12-21 08:42:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2023-12-21 08:42:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2023-12-21 08:42:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2023-12-21 08:42:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1377 backedges. 109 proven. 130 refuted. 0 times theorem prover too weak. 1138 trivial. 0 not checked. [2023-12-21 08:42:36,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:36,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62758381] [2023-12-21 08:42:36,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62758381] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:36,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006819551] [2023-12-21 08:42:36,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:36,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:36,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:36,499 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:42:36,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-21 08:42:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:36,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 3390 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:42:36,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:36,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1377 backedges. 513 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2023-12-21 08:42:36,999 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:42:36,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006819551] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:42:36,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:42:36,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [20] total 22 [2023-12-21 08:42:36,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739717139] [2023-12-21 08:42:36,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:42:37,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:42:37,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:37,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:42:37,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2023-12-21 08:42:37,001 INFO L87 Difference]: Start difference. First operand 24000 states and 39093 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-21 08:42:41,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:41,315 INFO L93 Difference]: Finished difference Result 45624 states and 74531 transitions. [2023-12-21 08:42:41,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:42:41,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 509 [2023-12-21 08:42:41,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:41,397 INFO L225 Difference]: With dead ends: 45624 [2023-12-21 08:42:41,397 INFO L226 Difference]: Without dead ends: 25247 [2023-12-21 08:42:41,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2023-12-21 08:42:41,454 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 205 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:41,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2079 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:42:41,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25247 states. [2023-12-21 08:42:45,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25247 to 25247. [2023-12-21 08:42:45,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25247 states, 20431 states have (on average 1.649356370221722) internal successors, (33698), 21002 states have internal predecessors, (33698), 3107 states have call successors, (3107), 1457 states have call predecessors, (3107), 1708 states have return successors, (4590), 3231 states have call predecessors, (4590), 3084 states have call successors, (4590) [2023-12-21 08:42:45,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25247 states to 25247 states and 41395 transitions. [2023-12-21 08:42:45,476 INFO L78 Accepts]: Start accepts. Automaton has 25247 states and 41395 transitions. Word has length 509 [2023-12-21 08:42:45,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:45,476 INFO L495 AbstractCegarLoop]: Abstraction has 25247 states and 41395 transitions. [2023-12-21 08:42:45,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-21 08:42:45,477 INFO L276 IsEmpty]: Start isEmpty. Operand 25247 states and 41395 transitions. [2023-12-21 08:42:45,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2023-12-21 08:42:45,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:45,525 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:42:45,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-21 08:42:45,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:45,726 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:45,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1993838952, now seen corresponding path program 1 times [2023-12-21 08:42:45,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:45,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677776514] [2023-12-21 08:42:45,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:45,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:42:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:42:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:42:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:42:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:42:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:42:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:42:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:42:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 08:42:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:42:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:42:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:42:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 08:42:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:42:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 08:42:46,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:42:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:42:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-21 08:42:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-21 08:42:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-21 08:42:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-12-21 08:42:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2023-12-21 08:42:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2023-12-21 08:42:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-21 08:42:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-21 08:42:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2023-12-21 08:42:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2023-12-21 08:42:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2023-12-21 08:42:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2023-12-21 08:42:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2023-12-21 08:42:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 61 proven. 69 refuted. 0 times theorem prover too weak. 1246 trivial. 0 not checked. [2023-12-21 08:42:46,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:46,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677776514] [2023-12-21 08:42:46,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677776514] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:46,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540738590] [2023-12-21 08:42:46,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:46,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:46,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:46,437 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:42:46,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-21 08:42:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:46,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 3407 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:42:46,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:46,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 806 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-12-21 08:42:46,944 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:42:46,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540738590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:42:46,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:42:46,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-21 08:42:46,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460864081] [2023-12-21 08:42:46,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:42:46,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:42:46,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:46,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:42:46,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-21 08:42:46,946 INFO L87 Difference]: Start difference. First operand 25247 states and 41395 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2023-12-21 08:42:54,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:54,995 INFO L93 Difference]: Finished difference Result 67720 states and 111558 transitions. [2023-12-21 08:42:54,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:42:54,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 516 [2023-12-21 08:42:54,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:55,141 INFO L225 Difference]: With dead ends: 67720 [2023-12-21 08:42:55,141 INFO L226 Difference]: Without dead ends: 46782 [2023-12-21 08:42:55,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-12-21 08:42:55,209 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 762 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:55,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 2051 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:42:55,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46782 states. [2023-12-21 08:43:02,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46782 to 46493. [2023-12-21 08:43:02,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46493 states, 37602 states have (on average 1.6550981330780277) internal successors, (62235), 38694 states have internal predecessors, (62235), 5779 states have call successors, (5779), 2651 states have call predecessors, (5779), 3111 states have return successors, (9020), 6011 states have call predecessors, (9020), 5740 states have call successors, (9020) [2023-12-21 08:43:02,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46493 states to 46493 states and 77034 transitions. [2023-12-21 08:43:02,939 INFO L78 Accepts]: Start accepts. Automaton has 46493 states and 77034 transitions. Word has length 516 [2023-12-21 08:43:02,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:43:02,940 INFO L495 AbstractCegarLoop]: Abstraction has 46493 states and 77034 transitions. [2023-12-21 08:43:02,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2023-12-21 08:43:02,940 INFO L276 IsEmpty]: Start isEmpty. Operand 46493 states and 77034 transitions. [2023-12-21 08:43:03,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2023-12-21 08:43:03,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:43:03,033 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:43:03,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-21 08:43:03,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-12-21 08:43:03,234 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:43:03,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:43:03,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1730747579, now seen corresponding path program 1 times [2023-12-21 08:43:03,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:43:03,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181597541] [2023-12-21 08:43:03,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:03,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:43:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:43:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:43:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:43:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:43:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:43:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:43:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:43:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:43:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:43:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:43:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 08:43:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:43:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:43:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:43:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 08:43:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:43:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 08:43:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:43:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-21 08:43:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-21 08:43:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2023-12-21 08:43:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-21 08:43:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-21 08:43:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2023-12-21 08:43:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2023-12-21 08:43:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-12-21 08:43:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2023-12-21 08:43:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2023-12-21 08:43:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2023-12-21 08:43:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2023-12-21 08:43:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2023-12-21 08:43:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:03,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 61 proven. 69 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-21 08:43:03,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:43:03,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181597541] [2023-12-21 08:43:03,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181597541] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:43:03,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884170982] [2023-12-21 08:43:03,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:03,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:43:03,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:43:03,954 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:43:03,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-21 08:43:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:04,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 3379 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 08:43:04,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:43:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 617 proven. 31 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2023-12-21 08:43:04,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:43:05,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 72 proven. 43 refuted. 0 times theorem prover too weak. 1265 trivial. 0 not checked. [2023-12-21 08:43:05,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884170982] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:43:05,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:43:05,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 10] total 25 [2023-12-21 08:43:05,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806241606] [2023-12-21 08:43:05,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:43:05,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-21 08:43:05,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:43:05,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-21 08:43:05,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2023-12-21 08:43:05,123 INFO L87 Difference]: Start difference. First operand 46493 states and 77034 transitions. Second operand has 25 states, 24 states have (on average 16.375) internal successors, (393), 19 states have internal predecessors, (393), 13 states have call successors, (108), 10 states have call predecessors, (108), 14 states have return successors, (104), 15 states have call predecessors, (104), 13 states have call successors, (104) [2023-12-21 08:44:14,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:44:14,192 INFO L93 Difference]: Finished difference Result 175884 states and 337035 transitions. [2023-12-21 08:44:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2023-12-21 08:44:14,193 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 16.375) internal successors, (393), 19 states have internal predecessors, (393), 13 states have call successors, (108), 10 states have call predecessors, (108), 14 states have return successors, (104), 15 states have call predecessors, (104), 13 states have call successors, (104) Word has length 508 [2023-12-21 08:44:14,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:44:15,184 INFO L225 Difference]: With dead ends: 175884 [2023-12-21 08:44:15,184 INFO L226 Difference]: Without dead ends: 129151 [2023-12-21 08:44:15,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1305 GetRequests, 1167 SyntacticMatches, 5 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6927 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=3150, Invalid=14940, Unknown=0, NotChecked=0, Total=18090 [2023-12-21 08:44:15,612 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 19278 mSDsluCounter, 6938 mSDsCounter, 0 mSdLazyCounter, 25072 mSolverCounterSat, 9330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19278 SdHoareTripleChecker+Valid, 7895 SdHoareTripleChecker+Invalid, 34402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 9330 IncrementalHoareTripleChecker+Valid, 25072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:44:15,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19278 Valid, 7895 Invalid, 34402 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [9330 Valid, 25072 Invalid, 0 Unknown, 0 Unchecked, 20.8s Time] [2023-12-21 08:44:15,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129151 states. [2023-12-21 08:44:30,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129151 to 74669. [2023-12-21 08:44:30,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74669 states, 60229 states have (on average 1.6503511597403244) internal successors, (99399), 61997 states have internal predecessors, (99399), 9415 states have call successors, (9415), 4139 states have call predecessors, (9415), 5024 states have return successors, (15550), 9948 states have call predecessors, (15550), 9377 states have call successors, (15550) [2023-12-21 08:44:30,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74669 states to 74669 states and 124364 transitions. [2023-12-21 08:44:30,882 INFO L78 Accepts]: Start accepts. Automaton has 74669 states and 124364 transitions. Word has length 508 [2023-12-21 08:44:30,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:44:30,882 INFO L495 AbstractCegarLoop]: Abstraction has 74669 states and 124364 transitions. [2023-12-21 08:44:30,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 16.375) internal successors, (393), 19 states have internal predecessors, (393), 13 states have call successors, (108), 10 states have call predecessors, (108), 14 states have return successors, (104), 15 states have call predecessors, (104), 13 states have call successors, (104) [2023-12-21 08:44:30,882 INFO L276 IsEmpty]: Start isEmpty. Operand 74669 states and 124364 transitions. [2023-12-21 08:44:30,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2023-12-21 08:44:30,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:44:30,989 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 08:44:30,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-21 08:44:31,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-12-21 08:44:31,190 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:44:31,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:44:31,191 INFO L85 PathProgramCache]: Analyzing trace with hash 493171685, now seen corresponding path program 1 times [2023-12-21 08:44:31,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:44:31,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525741481] [2023-12-21 08:44:31,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:31,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:44:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:44:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:44:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:44:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:44:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:44:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:44:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:44:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:44:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 08:44:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:44:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 08:44:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:44:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:44:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:44:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-21 08:44:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:44:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:44:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:44:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-12-21 08:44:31,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2023-12-21 08:44:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-21 08:44:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2023-12-21 08:44:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2023-12-21 08:44:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2023-12-21 08:44:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-12-21 08:44:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2023-12-21 08:44:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-12-21 08:44:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2023-12-21 08:44:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2023-12-21 08:44:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2023-12-21 08:44:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2023-12-21 08:44:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 59 proven. 38 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2023-12-21 08:44:31,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:44:31,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525741481] [2023-12-21 08:44:31,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525741481] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:44:31,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273435299] [2023-12-21 08:44:31,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:31,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:44:31,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:44:31,775 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:44:31,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-21 08:44:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:32,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 3414 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:44:32,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:44:32,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 796 proven. 53 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2023-12-21 08:44:32,344 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:44:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 96 proven. 9 refuted. 0 times theorem prover too weak. 1290 trivial. 0 not checked. [2023-12-21 08:44:32,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273435299] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:44:32,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:44:32,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 7] total 22 [2023-12-21 08:44:32,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93323231] [2023-12-21 08:44:32,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:44:32,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-21 08:44:32,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:44:32,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-21 08:44:32,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2023-12-21 08:44:32,649 INFO L87 Difference]: Start difference. First operand 74669 states and 124364 transitions. Second operand has 22 states, 22 states have (on average 15.318181818181818) internal successors, (337), 18 states have internal predecessors, (337), 13 states have call successors, (93), 10 states have call predecessors, (93), 10 states have return successors, (87), 13 states have call predecessors, (87), 13 states have call successors, (87)