/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_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 08:39:50,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 08:39:50,874 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 08:39:50,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 08:39:50,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 08:39:50,907 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 08:39:50,908 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 08:39:50,908 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 08:39:50,909 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 08:39:50,910 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 08:39:50,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 08:39:50,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 08:39:50,911 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 08:39:50,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 08:39:50,915 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 08:39:50,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 08:39:50,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 08:39:50,915 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 08:39:50,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 08:39:50,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 08:39:50,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 08:39:50,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 08:39:50,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 08:39:50,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 08:39:50,918 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 08:39:50,918 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 08:39:50,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 08:39:50,918 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 08:39:50,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 08:39:50,919 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 08:39:50,920 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 08:39:50,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 08:39:50,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 08:39:50,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 08:39:50,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 08:39:50,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 08:39:50,921 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 08:39:50,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 08:39:50,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 08:39:50,921 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 08:39:50,922 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 08:39:50,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 08:39:50,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 08:39:50,922 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 08:39:51,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 08:39:51,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 08:39:51,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 08:39:51,167 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 08:39:51,167 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 08:39:51,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product31.cil.c [2023-12-21 08:39:52,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 08:39:52,636 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 08:39:52,637 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product31.cil.c [2023-12-21 08:39:52,653 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da45b8a72/28f37b499265438e825eed1e3814ec30/FLAG42f74879f [2023-12-21 08:39:52,859 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da45b8a72/28f37b499265438e825eed1e3814ec30 [2023-12-21 08:39:52,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 08:39:52,863 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 08:39:52,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 08:39:52,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 08:39:52,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 08:39:52,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:39:52" (1/1) ... [2023-12-21 08:39:52,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea6443e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:52, skipping insertion in model container [2023-12-21 08:39:52,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:39:52" (1/1) ... [2023-12-21 08:39:52,946 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 08:39:53,414 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_product31.cil.c[71150,71163] [2023-12-21 08:39:53,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 08:39:53,427 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 08:39:53,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2023-12-21 08:39:53,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [716] [2023-12-21 08:39:53,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1082] [2023-12-21 08:39:53,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1183] [2023-12-21 08:39:53,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1221] [2023-12-21 08:39:53,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1341] [2023-12-21 08:39:53,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2956] [2023-12-21 08:39:53,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [3305] [2023-12-21 08:39:53,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3342] [2023-12-21 08:39:53,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3351] [2023-12-21 08:39:53,541 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_product31.cil.c[71150,71163] [2023-12-21 08:39:53,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 08:39:53,568 INFO L206 MainTranslator]: Completed translation [2023-12-21 08:39:53,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53 WrapperNode [2023-12-21 08:39:53,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 08:39:53,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 08:39:53,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 08:39:53,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 08:39:53,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,646 INFO L138 Inliner]: procedures = 94, calls = 342, calls flagged for inlining = 29, calls inlined = 26, statements flattened = 897 [2023-12-21 08:39:53,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 08:39:53,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 08:39:53,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 08:39:53,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 08:39:53,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,664 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,690 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-21 08:39:53,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,753 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 08:39:53,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 08:39:53,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 08:39:53,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 08:39:53,755 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (1/1) ... [2023-12-21 08:39:53,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 08:39:53,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:53,781 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 08:39:53,818 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 08:39:53,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 08:39:53,842 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-21 08:39:53,843 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-12-21 08:39:53,843 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-21 08:39:53,843 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-21 08:39:53,843 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-21 08:39:53,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-21 08:39:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-21 08:39:53,844 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-21 08:39:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-21 08:39:53,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-21 08:39:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-21 08:39:53,844 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-21 08:39:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-21 08:39:53,845 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-21 08:39:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-21 08:39:53,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-21 08:39:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-12-21 08:39:53,845 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-12-21 08:39:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-21 08:39:53,845 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-21 08:39:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-21 08:39:53,846 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-21 08:39:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-21 08:39:53,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-21 08:39:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-21 08:39:53,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-21 08:39:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-21 08:39:53,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-21 08:39:53,847 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-21 08:39:53,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-21 08:39:53,847 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-21 08:39:53,847 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-21 08:39:53,847 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-21 08:39:53,847 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-21 08:39:53,847 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-21 08:39:53,847 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-21 08:39:53,847 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-21 08:39:53,848 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-21 08:39:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-21 08:39:53,848 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-21 08:39:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 08:39:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 08:39:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 08:39:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 08:39:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 08:39:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 08:39:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 08:39:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 08:39:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 08:39:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 08:39:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 08:39:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 08:39:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 08:39:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 08:39:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 08:39:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-21 08:39:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-21 08:39:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-21 08:39:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-21 08:39:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-21 08:39:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-12-21 08:39:53,850 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-12-21 08:39:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-21 08:39:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-21 08:39:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-21 08:39:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-21 08:39:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-21 08:39:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-21 08:39:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 08:39:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 08:39:53,851 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-21 08:39:53,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-21 08:39:54,051 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 08:39:54,054 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 08:39:55,024 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 08:39:55,088 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 08:39:55,088 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 08:39:55,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:39:55 BoogieIcfgContainer [2023-12-21 08:39:55,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 08:39:55,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 08:39:55,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 08:39:55,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 08:39:55,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 08:39:52" (1/3) ... [2023-12-21 08:39:55,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a15dede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:39:55, skipping insertion in model container [2023-12-21 08:39:55,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:53" (2/3) ... [2023-12-21 08:39:55,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a15dede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:39:55, skipping insertion in model container [2023-12-21 08:39:55,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:39:55" (3/3) ... [2023-12-21 08:39:55,095 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product31.cil.c [2023-12-21 08:39:55,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 08:39:55,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 08:39:55,164 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 08:39:55,170 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;@7195922, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 08:39:55,170 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 08:39:55,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 546 states, 420 states have (on average 1.7023809523809523) internal successors, (715), 436 states have internal predecessors, (715), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-21 08:39:55,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-21 08:39:55,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:55,214 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 08:39:55,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:55,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:55,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1945756511, now seen corresponding path program 1 times [2023-12-21 08:39:55,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:55,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877644473] [2023-12-21 08:39:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:55,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:39:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 08:39:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:39:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:55,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:39:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 08:39:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:39:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 08:39:56,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,039 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 08:39:56,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:56,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877644473] [2023-12-21 08:39:56,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877644473] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:56,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:56,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:39:56,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368866653] [2023-12-21 08:39:56,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:56,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:39:56,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:56,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:39:56,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:39:56,077 INFO L87 Difference]: Start difference. First operand has 546 states, 420 states have (on average 1.7023809523809523) internal successors, (715), 436 states have internal predecessors, (715), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) 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 08:40:00,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:00,365 INFO L93 Difference]: Finished difference Result 1279 states and 2172 transitions. [2023-12-21 08:40:00,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:40:00,368 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 08:40:00,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:00,384 INFO L225 Difference]: With dead ends: 1279 [2023-12-21 08:40:00,384 INFO L226 Difference]: Without dead ends: 727 [2023-12-21 08:40:00,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:40:00,395 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 1373 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:00,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 1108 Invalid, 2994 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [400 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-21 08:40:00,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-12-21 08:40:00,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 545. [2023-12-21 08:40:00,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.6857142857142857) internal successors, (708), 435 states have internal predecessors, (708), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-21 08:40:00,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 905 transitions. [2023-12-21 08:40:00,606 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 905 transitions. Word has length 89 [2023-12-21 08:40:00,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:00,606 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 905 transitions. [2023-12-21 08:40:00,607 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 08:40:00,607 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 905 transitions. [2023-12-21 08:40:00,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 08:40:00,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:00,614 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 08:40:00,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 08:40:00,615 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:00,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:00,615 INFO L85 PathProgramCache]: Analyzing trace with hash 293079729, now seen corresponding path program 1 times [2023-12-21 08:40:00,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:00,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097177266] [2023-12-21 08:40:00,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:00,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 08:40:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:40:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:40:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:40:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:40:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:40:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:00,949 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 08:40:00,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:00,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097177266] [2023-12-21 08:40:00,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097177266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:00,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:00,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:40:00,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777734197] [2023-12-21 08:40:00,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:00,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:00,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:00,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:00,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:40:00,952 INFO L87 Difference]: Start difference. First operand 545 states and 905 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 08:40:04,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:04,749 INFO L93 Difference]: Finished difference Result 1260 states and 2106 transitions. [2023-12-21 08:40:04,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:40:04,749 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 08:40:04,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:04,760 INFO L225 Difference]: With dead ends: 1260 [2023-12-21 08:40:04,760 INFO L226 Difference]: Without dead ends: 727 [2023-12-21 08:40:04,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:04,764 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1367 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 2572 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 2972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 2572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:04,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 1028 Invalid, 2972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 2572 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-21 08:40:04,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-12-21 08:40:04,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 545. [2023-12-21 08:40:04,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.6833333333333333) internal successors, (707), 435 states have internal predecessors, (707), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-21 08:40:04,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 904 transitions. [2023-12-21 08:40:04,906 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 904 transitions. Word has length 90 [2023-12-21 08:40:04,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:04,906 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 904 transitions. [2023-12-21 08:40:04,907 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 08:40:04,907 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 904 transitions. [2023-12-21 08:40:04,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-21 08:40:04,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:04,912 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 08:40:04,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 08:40:04,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:04,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:04,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1045547869, now seen corresponding path program 1 times [2023-12-21 08:40:04,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:04,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079046597] [2023-12-21 08:40:04,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:04,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 08:40:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 08:40:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 08:40:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:40:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 08:40:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 08:40:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 08:40:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:05,259 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 08:40:05,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:05,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079046597] [2023-12-21 08:40:05,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079046597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:05,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:05,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:40:05,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182827145] [2023-12-21 08:40:05,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:05,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:05,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:05,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:05,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:40:05,266 INFO L87 Difference]: Start difference. First operand 545 states and 904 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 08:40:08,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:08,605 INFO L93 Difference]: Finished difference Result 1260 states and 2105 transitions. [2023-12-21 08:40:08,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:40:08,606 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 08:40:08,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:08,610 INFO L225 Difference]: With dead ends: 1260 [2023-12-21 08:40:08,610 INFO L226 Difference]: Without dead ends: 727 [2023-12-21 08:40:08,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:08,614 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1359 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 2574 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 2574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:08,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 1045 Invalid, 2973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 2574 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-21 08:40:08,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-12-21 08:40:08,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 545. [2023-12-21 08:40:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.680952380952381) internal successors, (706), 435 states have internal predecessors, (706), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-21 08:40:08,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 903 transitions. [2023-12-21 08:40:08,698 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 903 transitions. Word has length 91 [2023-12-21 08:40:08,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:08,699 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 903 transitions. [2023-12-21 08:40:08,700 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 08:40:08,700 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 903 transitions. [2023-12-21 08:40:08,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 08:40:08,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:08,702 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 08:40:08,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 08:40:08,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:08,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:08,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1238585355, now seen corresponding path program 1 times [2023-12-21 08:40:08,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:08,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575044063] [2023-12-21 08:40:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:08,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:08,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 08:40:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 08:40:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:40:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:40:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:40:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 08:40:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 08:40:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:08,975 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 08:40:08,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:08,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575044063] [2023-12-21 08:40:08,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575044063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:08,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:08,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:40:08,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084110896] [2023-12-21 08:40:08,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:08,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:08,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:08,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:08,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:40:08,977 INFO L87 Difference]: Start difference. First operand 545 states and 903 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 08:40:12,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:12,365 INFO L93 Difference]: Finished difference Result 1260 states and 2104 transitions. [2023-12-21 08:40:12,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:40:12,366 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 08:40:12,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:12,370 INFO L225 Difference]: With dead ends: 1260 [2023-12-21 08:40:12,370 INFO L226 Difference]: Without dead ends: 727 [2023-12-21 08:40:12,374 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 08:40:12,375 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1361 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 2964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:12,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 1014 Invalid, 2964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-21 08:40:12,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-12-21 08:40:12,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 545. [2023-12-21 08:40:12,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.6785714285714286) internal successors, (705), 435 states have internal predecessors, (705), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-21 08:40:12,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 902 transitions. [2023-12-21 08:40:12,477 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 902 transitions. Word has length 92 [2023-12-21 08:40:12,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:12,478 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 902 transitions. [2023-12-21 08:40:12,478 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 08:40:12,478 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 902 transitions. [2023-12-21 08:40:12,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 08:40:12,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:12,481 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 08:40:12,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 08:40:12,482 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:12,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:12,483 INFO L85 PathProgramCache]: Analyzing trace with hash -278067737, now seen corresponding path program 1 times [2023-12-21 08:40:12,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:12,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339422435] [2023-12-21 08:40:12,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:12,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 08:40:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 08:40:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:40:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:40:12,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:40:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:40:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 08:40:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,796 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 08:40:12,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:12,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339422435] [2023-12-21 08:40:12,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339422435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:12,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:12,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:40:12,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529189135] [2023-12-21 08:40:12,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:12,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:12,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:12,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:12,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:40:12,799 INFO L87 Difference]: Start difference. First operand 545 states and 902 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 08:40:16,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:16,100 INFO L93 Difference]: Finished difference Result 1260 states and 2103 transitions. [2023-12-21 08:40:16,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:40:16,101 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 08:40:16,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:16,104 INFO L225 Difference]: With dead ends: 1260 [2023-12-21 08:40:16,104 INFO L226 Difference]: Without dead ends: 727 [2023-12-21 08:40:16,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:16,108 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1350 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 2976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:16,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 1049 Invalid, 2976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 2578 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-21 08:40:16,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2023-12-21 08:40:16,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 545. [2023-12-21 08:40:16,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 420 states have (on average 1.6761904761904762) internal successors, (704), 435 states have internal predecessors, (704), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-21 08:40:16,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 901 transitions. [2023-12-21 08:40:16,193 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 901 transitions. Word has length 93 [2023-12-21 08:40:16,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:16,193 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 901 transitions. [2023-12-21 08:40:16,193 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 08:40:16,193 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 901 transitions. [2023-12-21 08:40:16,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 08:40:16,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:16,196 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 08:40:16,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 08:40:16,196 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:16,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:16,196 INFO L85 PathProgramCache]: Analyzing trace with hash 2082919737, now seen corresponding path program 1 times [2023-12-21 08:40:16,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:16,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100653733] [2023-12-21 08:40:16,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:16,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:16,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 08:40:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:40:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:40:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:40:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 08:40:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:40:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:16,647 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 08:40:16,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:16,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100653733] [2023-12-21 08:40:16,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100653733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:16,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:16,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 08:40:16,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480841048] [2023-12-21 08:40:16,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:16,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 08:40:16,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:16,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 08:40:16,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:40:16,650 INFO L87 Difference]: Start difference. First operand 545 states and 901 transitions. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 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 08:40:21,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:21,475 INFO L93 Difference]: Finished difference Result 1280 states and 2137 transitions. [2023-12-21 08:40:21,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 08:40:21,476 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 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 08:40:21,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:21,480 INFO L225 Difference]: With dead ends: 1280 [2023-12-21 08:40:21,480 INFO L226 Difference]: Without dead ends: 751 [2023-12-21 08:40:21,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:40:21,483 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1479 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 5762 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 6167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 5762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:21,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 2205 Invalid, 6167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [405 Valid, 5762 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-12-21 08:40:21,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-12-21 08:40:21,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 557. [2023-12-21 08:40:21,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 429 states have (on average 1.6736596736596736) internal successors, (718), 446 states have internal predecessors, (718), 100 states have call successors, (100), 26 states have call predecessors, (100), 27 states have return successors, (102), 97 states have call predecessors, (102), 99 states have call successors, (102) [2023-12-21 08:40:21,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 920 transitions. [2023-12-21 08:40:21,570 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 920 transitions. Word has length 94 [2023-12-21 08:40:21,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:21,571 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 920 transitions. [2023-12-21 08:40:21,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 7 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 08:40:21,571 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 920 transitions. [2023-12-21 08:40:21,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 08:40:21,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:21,573 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 08:40:21,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 08:40:21,574 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:21,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:21,574 INFO L85 PathProgramCache]: Analyzing trace with hash 597864186, now seen corresponding path program 1 times [2023-12-21 08:40:21,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:21,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162745324] [2023-12-21 08:40:21,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:21,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 08:40:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:40:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:40:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:40:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 08:40:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:40:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:21,831 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 08:40:21,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:21,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162745324] [2023-12-21 08:40:21,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162745324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:21,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:21,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:40:21,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390225515] [2023-12-21 08:40:21,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:21,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:21,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:21,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:21,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:40:21,833 INFO L87 Difference]: Start difference. First operand 557 states and 920 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 08:40:25,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:25,170 INFO L93 Difference]: Finished difference Result 1319 states and 2206 transitions. [2023-12-21 08:40:25,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 08:40:25,171 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 08:40:25,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:25,175 INFO L225 Difference]: With dead ends: 1319 [2023-12-21 08:40:25,175 INFO L226 Difference]: Without dead ends: 782 [2023-12-21 08:40:25,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:40:25,178 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1472 mSDsluCounter, 715 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:25,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1022 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-21 08:40:25,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2023-12-21 08:40:25,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 576. [2023-12-21 08:40:25,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 447 states have (on average 1.6689038031319912) internal successors, (746), 464 states have internal predecessors, (746), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2023-12-21 08:40:25,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 947 transitions. [2023-12-21 08:40:25,267 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 947 transitions. Word has length 94 [2023-12-21 08:40:25,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:25,267 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 947 transitions. [2023-12-21 08:40:25,267 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 08:40:25,268 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 947 transitions. [2023-12-21 08:40:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 08:40:25,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:25,270 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 08:40:25,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 08:40:25,270 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:25,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:25,271 INFO L85 PathProgramCache]: Analyzing trace with hash -22081205, now seen corresponding path program 1 times [2023-12-21 08:40:25,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:25,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822658281] [2023-12-21 08:40:25,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:25,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 08:40:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:40:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:40:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 08:40:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:40:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:40:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,533 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 08:40:25,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:25,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822658281] [2023-12-21 08:40:25,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822658281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:25,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:25,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:40:25,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800706758] [2023-12-21 08:40:25,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:25,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:25,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:25,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:25,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:40:25,535 INFO L87 Difference]: Start difference. First operand 576 states and 947 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 08:40:28,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:28,564 INFO L93 Difference]: Finished difference Result 1294 states and 2141 transitions. [2023-12-21 08:40:28,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:40:28,565 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 08:40:28,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:28,569 INFO L225 Difference]: With dead ends: 1294 [2023-12-21 08:40:28,569 INFO L226 Difference]: Without dead ends: 774 [2023-12-21 08:40:28,571 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 08:40:28,572 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 1440 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 2492 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 2492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:28,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 1013 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 2492 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-21 08:40:28,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2023-12-21 08:40:28,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 576. [2023-12-21 08:40:28,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 447 states have (on average 1.657718120805369) internal successors, (741), 464 states have internal predecessors, (741), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2023-12-21 08:40:28,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 942 transitions. [2023-12-21 08:40:28,664 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 942 transitions. Word has length 95 [2023-12-21 08:40:28,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:28,665 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 942 transitions. [2023-12-21 08:40:28,665 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 08:40:28,665 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 942 transitions. [2023-12-21 08:40:28,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 08:40:28,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:28,668 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 08:40:28,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 08:40:28,668 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:28,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:28,669 INFO L85 PathProgramCache]: Analyzing trace with hash -811410443, now seen corresponding path program 1 times [2023-12-21 08:40:28,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:28,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396574900] [2023-12-21 08:40:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:28,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 08:40:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:40:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 08:40:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:40:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:40:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,945 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 08:40:28,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:28,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396574900] [2023-12-21 08:40:28,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396574900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:28,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:28,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:40:28,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219384621] [2023-12-21 08:40:28,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:28,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:28,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:28,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:28,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:40:28,947 INFO L87 Difference]: Start difference. First operand 576 states and 942 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 08:40:31,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:31,937 INFO L93 Difference]: Finished difference Result 1294 states and 2136 transitions. [2023-12-21 08:40:31,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:40:31,937 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 08:40:31,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:31,941 INFO L225 Difference]: With dead ends: 1294 [2023-12-21 08:40:31,942 INFO L226 Difference]: Without dead ends: 774 [2023-12-21 08:40:31,944 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 08:40:31,944 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 1431 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 2870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:31,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1011 Invalid, 2870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [405 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 08:40:31,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2023-12-21 08:40:32,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 576. [2023-12-21 08:40:32,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 447 states have (on average 1.6465324384787472) internal successors, (736), 464 states have internal predecessors, (736), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2023-12-21 08:40:32,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 937 transitions. [2023-12-21 08:40:32,038 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 937 transitions. Word has length 96 [2023-12-21 08:40:32,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:32,038 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 937 transitions. [2023-12-21 08:40:32,039 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 08:40:32,039 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 937 transitions. [2023-12-21 08:40:32,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 08:40:32,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:32,041 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 08:40:32,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 08:40:32,042 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:32,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:32,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1108898886, now seen corresponding path program 1 times [2023-12-21 08:40:32,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:32,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098062169] [2023-12-21 08:40:32,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:32,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:40:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:40:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:40:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:40:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:40:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:40:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,383 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 08:40:32,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:32,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098062169] [2023-12-21 08:40:32,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098062169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:32,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:32,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:40:32,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653622386] [2023-12-21 08:40:32,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:32,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:40:32,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:32,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:40:32,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:32,385 INFO L87 Difference]: Start difference. First operand 576 states and 937 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 08:40:37,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:37,037 INFO L93 Difference]: Finished difference Result 1294 states and 2128 transitions. [2023-12-21 08:40:37,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:40:37,037 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 08:40:37,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:37,041 INFO L225 Difference]: With dead ends: 1294 [2023-12-21 08:40:37,041 INFO L226 Difference]: Without dead ends: 788 [2023-12-21 08:40:37,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:40:37,043 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1412 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 4906 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 5315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 4906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:37,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 1916 Invalid, 5315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 4906 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-21 08:40:37,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2023-12-21 08:40:37,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 578. [2023-12-21 08:40:37,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 449 states have (on average 1.641425389755011) internal successors, (737), 466 states have internal predecessors, (737), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2023-12-21 08:40:37,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 938 transitions. [2023-12-21 08:40:37,118 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 938 transitions. Word has length 97 [2023-12-21 08:40:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:37,118 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 938 transitions. [2023-12-21 08:40:37,119 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 08:40:37,119 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 938 transitions. [2023-12-21 08:40:37,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 08:40:37,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:37,121 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 08:40:37,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 08:40:37,122 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:37,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:37,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1738295654, now seen corresponding path program 1 times [2023-12-21 08:40:37,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:37,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240660570] [2023-12-21 08:40:37,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:37,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:40:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:40:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:40:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:40:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:40:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:40:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,349 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 08:40:37,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:37,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240660570] [2023-12-21 08:40:37,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240660570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:37,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:37,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:40:37,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235847935] [2023-12-21 08:40:37,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:37,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:37,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:37,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:40:37,351 INFO L87 Difference]: Start difference. First operand 578 states and 938 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 08:40:40,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:40,272 INFO L93 Difference]: Finished difference Result 1298 states and 2131 transitions. [2023-12-21 08:40:40,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:40:40,272 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 08:40:40,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:40,275 INFO L225 Difference]: With dead ends: 1298 [2023-12-21 08:40:40,275 INFO L226 Difference]: Without dead ends: 776 [2023-12-21 08:40:40,276 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 08:40:40,277 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1416 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:40,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1463 Valid, 1020 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 08:40:40,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2023-12-21 08:40:40,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 578. [2023-12-21 08:40:40,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 449 states have (on average 1.6302895322939865) internal successors, (732), 466 states have internal predecessors, (732), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2023-12-21 08:40:40,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 933 transitions. [2023-12-21 08:40:40,371 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 933 transitions. Word has length 97 [2023-12-21 08:40:40,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:40,371 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 933 transitions. [2023-12-21 08:40:40,372 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 08:40:40,372 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 933 transitions. [2023-12-21 08:40:40,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 08:40:40,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:40,374 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 08:40:40,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 08:40:40,375 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:40,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:40,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1500248658, now seen corresponding path program 1 times [2023-12-21 08:40:40,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:40,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171425752] [2023-12-21 08:40:40,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:40,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:40:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:40:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:40:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:40,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:40:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:40:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:40:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:40,670 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 08:40:40,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:40,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171425752] [2023-12-21 08:40:40,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171425752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:40,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:40,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:40:40,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292049272] [2023-12-21 08:40:40,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:40,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:40:40,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:40,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:40:40,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:40,672 INFO L87 Difference]: Start difference. First operand 578 states and 933 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 08:40:45,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:45,108 INFO L93 Difference]: Finished difference Result 1316 states and 2151 transitions. [2023-12-21 08:40:45,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:40:45,109 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 08:40:45,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:45,112 INFO L225 Difference]: With dead ends: 1316 [2023-12-21 08:40:45,112 INFO L226 Difference]: Without dead ends: 806 [2023-12-21 08:40:45,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:40:45,115 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1427 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 4814 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 1849 SdHoareTripleChecker+Invalid, 5225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 4814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:45,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 1849 Invalid, 5225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 4814 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-21 08:40:45,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2023-12-21 08:40:45,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 584. [2023-12-21 08:40:45,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 455 states have (on average 1.6197802197802198) internal successors, (737), 472 states have internal predecessors, (737), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2023-12-21 08:40:45,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 938 transitions. [2023-12-21 08:40:45,210 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 938 transitions. Word has length 98 [2023-12-21 08:40:45,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:45,210 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 938 transitions. [2023-12-21 08:40:45,211 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 08:40:45,211 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 938 transitions. [2023-12-21 08:40:45,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 08:40:45,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:45,213 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 08:40:45,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 08:40:45,214 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:45,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:45,214 INFO L85 PathProgramCache]: Analyzing trace with hash 423914736, now seen corresponding path program 1 times [2023-12-21 08:40:45,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:45,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481676230] [2023-12-21 08:40:45,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:45,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:40:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:40:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:40:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:40:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:40:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:40:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:45,444 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 08:40:45,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:45,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481676230] [2023-12-21 08:40:45,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481676230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:45,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:45,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:40:45,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495172390] [2023-12-21 08:40:45,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:45,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:45,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:45,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:45,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:40:45,446 INFO L87 Difference]: Start difference. First operand 584 states and 938 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 08:40:48,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:48,350 INFO L93 Difference]: Finished difference Result 1313 states and 2137 transitions. [2023-12-21 08:40:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:40:48,350 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 08:40:48,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:48,354 INFO L225 Difference]: With dead ends: 1313 [2023-12-21 08:40:48,354 INFO L226 Difference]: Without dead ends: 785 [2023-12-21 08:40:48,356 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 08:40:48,357 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 1410 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1457 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:48,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1457 Valid, 1008 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2448 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 08:40:48,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2023-12-21 08:40:48,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 584. [2023-12-21 08:40:48,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 455 states have (on average 1.6087912087912088) internal successors, (732), 472 states have internal predecessors, (732), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2023-12-21 08:40:48,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 933 transitions. [2023-12-21 08:40:48,439 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 933 transitions. Word has length 98 [2023-12-21 08:40:48,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:48,440 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 933 transitions. [2023-12-21 08:40:48,440 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 08:40:48,440 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 933 transitions. [2023-12-21 08:40:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 08:40:48,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:48,443 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 08:40:48,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 08:40:48,443 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:48,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1329720479, now seen corresponding path program 1 times [2023-12-21 08:40:48,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:48,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196573423] [2023-12-21 08:40:48,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:48,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:40:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:40:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 08:40:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 08:40:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:40:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 08:40:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:48,730 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 08:40:48,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:48,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196573423] [2023-12-21 08:40:48,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196573423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:48,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:48,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:40:48,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650724588] [2023-12-21 08:40:48,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:48,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:40:48,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:48,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:40:48,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:48,731 INFO L87 Difference]: Start difference. First operand 584 states and 933 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 08:40:52,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:52,988 INFO L93 Difference]: Finished difference Result 1328 states and 2152 transitions. [2023-12-21 08:40:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:40:52,988 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 08:40:52,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:52,992 INFO L225 Difference]: With dead ends: 1328 [2023-12-21 08:40:52,992 INFO L226 Difference]: Without dead ends: 815 [2023-12-21 08:40:52,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:40:52,994 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1406 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 4765 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 5179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 4765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:52,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 1903 Invalid, 5179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 4765 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-21 08:40:52,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2023-12-21 08:40:53,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 592. [2023-12-21 08:40:53,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 463 states have (on average 1.5961123110151187) internal successors, (739), 480 states have internal predecessors, (739), 100 states have call successors, (100), 27 states have call predecessors, (100), 28 states have return successors, (101), 97 states have call predecessors, (101), 99 states have call successors, (101) [2023-12-21 08:40:53,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 940 transitions. [2023-12-21 08:40:53,096 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 940 transitions. Word has length 99 [2023-12-21 08:40:53,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:53,096 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 940 transitions. [2023-12-21 08:40:53,096 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 08:40:53,096 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 940 transitions. [2023-12-21 08:40:53,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 08:40:53,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:53,099 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 08:40:53,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 08:40:53,099 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:53,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:53,099 INFO L85 PathProgramCache]: Analyzing trace with hash -418079359, now seen corresponding path program 1 times [2023-12-21 08:40:53,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:53,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225233976] [2023-12-21 08:40:53,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:53,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:40:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:40:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 08:40:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 08:40:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:40:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 08:40:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:53,327 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 08:40:53,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:53,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225233976] [2023-12-21 08:40:53,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225233976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:53,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:53,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:40:53,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933357669] [2023-12-21 08:40:53,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:53,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:53,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:53,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:53,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:40:53,328 INFO L87 Difference]: Start difference. First operand 592 states and 940 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 08:40:56,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:56,531 INFO L93 Difference]: Finished difference Result 1369 states and 2194 transitions. [2023-12-21 08:40:56,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:40:56,532 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 08:40:56,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:56,535 INFO L225 Difference]: With dead ends: 1369 [2023-12-21 08:40:56,535 INFO L226 Difference]: Without dead ends: 771 [2023-12-21 08:40:56,537 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 08:40:56,537 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1335 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 2871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:56,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 1026 Invalid, 2871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [405 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 08:40:56,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2023-12-21 08:40:56,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 574. [2023-12-21 08:40:56,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 448 states have (on average 1.6004464285714286) internal successors, (717), 463 states have internal predecessors, (717), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-21 08:40:56,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 914 transitions. [2023-12-21 08:40:56,617 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 914 transitions. Word has length 99 [2023-12-21 08:40:56,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:56,617 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 914 transitions. [2023-12-21 08:40:56,617 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 08:40:56,617 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 914 transitions. [2023-12-21 08:40:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 08:40:56,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:56,620 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 08:40:56,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 08:40:56,620 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:56,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:56,620 INFO L85 PathProgramCache]: Analyzing trace with hash -941360691, now seen corresponding path program 1 times [2023-12-21 08:40:56,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:56,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850760274] [2023-12-21 08:40:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:56,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:40:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:40:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 08:40:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 08:40:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 08:40:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 08:40:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:56,905 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 08:40:56,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:56,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850760274] [2023-12-21 08:40:56,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850760274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:56,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:56,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:40:56,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747422007] [2023-12-21 08:40:56,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:56,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:40:56,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:56,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:40:56,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:56,907 INFO L87 Difference]: Start difference. First operand 574 states and 914 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 08:41:01,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:01,182 INFO L93 Difference]: Finished difference Result 1312 states and 2115 transitions. [2023-12-21 08:41:01,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:41:01,183 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 08:41:01,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:01,186 INFO L225 Difference]: With dead ends: 1312 [2023-12-21 08:41:01,186 INFO L226 Difference]: Without dead ends: 797 [2023-12-21 08:41:01,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:41:01,188 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1374 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 4694 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 5102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 4694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:01,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 1907 Invalid, 5102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 4694 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-12-21 08:41:01,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2023-12-21 08:41:01,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 584. [2023-12-21 08:41:01,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 458 states have (on average 1.5873362445414847) internal successors, (727), 473 states have internal predecessors, (727), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-21 08:41:01,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 924 transitions. [2023-12-21 08:41:01,281 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 924 transitions. Word has length 100 [2023-12-21 08:41:01,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:01,281 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 924 transitions. [2023-12-21 08:41:01,282 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 08:41:01,282 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 924 transitions. [2023-12-21 08:41:01,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 08:41:01,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:01,284 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 08:41:01,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 08:41:01,285 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:01,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:01,285 INFO L85 PathProgramCache]: Analyzing trace with hash 14589806, now seen corresponding path program 1 times [2023-12-21 08:41:01,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:01,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019270377] [2023-12-21 08:41:01,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:01,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:41:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:41:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:41:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 08:41:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:01,519 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 08:41:01,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:01,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019270377] [2023-12-21 08:41:01,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019270377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:01,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:41:01,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:41:01,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703945347] [2023-12-21 08:41:01,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:01,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:41:01,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:01,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:41:01,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:41:01,520 INFO L87 Difference]: Start difference. First operand 584 states and 924 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 08:41:04,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:04,637 INFO L93 Difference]: Finished difference Result 1314 states and 2109 transitions. [2023-12-21 08:41:04,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 08:41:04,638 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 101 [2023-12-21 08:41:04,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:04,640 INFO L225 Difference]: With dead ends: 1314 [2023-12-21 08:41:04,640 INFO L226 Difference]: Without dead ends: 774 [2023-12-21 08:41:04,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:41:04,642 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 1400 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:04,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 1090 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 08:41:04,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2023-12-21 08:41:04,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 584. [2023-12-21 08:41:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 458 states have (on average 1.5786026200873362) internal successors, (723), 473 states have internal predecessors, (723), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-21 08:41:04,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 920 transitions. [2023-12-21 08:41:04,715 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 920 transitions. Word has length 101 [2023-12-21 08:41:04,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:04,715 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 920 transitions. [2023-12-21 08:41:04,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 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 08:41:04,716 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 920 transitions. [2023-12-21 08:41:04,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 08:41:04,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:04,718 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 08:41:04,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 08:41:04,718 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:04,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:04,719 INFO L85 PathProgramCache]: Analyzing trace with hash -12475796, now seen corresponding path program 1 times [2023-12-21 08:41:04,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:04,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393367487] [2023-12-21 08:41:04,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:04,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:41:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:04,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:41:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:41:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 08:41:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:04,997 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 08:41:04,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:04,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393367487] [2023-12-21 08:41:04,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393367487] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:04,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449420985] [2023-12-21 08:41:04,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:04,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:04,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:05,001 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 08:41:05,004 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 08:41:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:05,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:41:05,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:05,367 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 08:41:05,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:05,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449420985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:05,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:05,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:41:05,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621106183] [2023-12-21 08:41:05,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:05,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:41:05,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:05,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:41:05,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:41:05,370 INFO L87 Difference]: Start difference. First operand 584 states and 920 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 08:41:05,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:05,880 INFO L93 Difference]: Finished difference Result 1106 states and 1795 transitions. [2023-12-21 08:41:05,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:41:05,880 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 08:41:05,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:05,882 INFO L225 Difference]: With dead ends: 1106 [2023-12-21 08:41:05,882 INFO L226 Difference]: Without dead ends: 592 [2023-12-21 08:41:05,884 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 08:41:05,884 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 828 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:05,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 2100 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 08:41:05,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-12-21 08:41:05,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2023-12-21 08:41:05,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 465 states have (on average 1.5806451612903225) internal successors, (735), 480 states have internal predecessors, (735), 99 states have call successors, (99), 28 states have call predecessors, (99), 27 states have return successors, (99), 96 states have call predecessors, (99), 98 states have call successors, (99) [2023-12-21 08:41:05,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 933 transitions. [2023-12-21 08:41:05,959 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 933 transitions. Word has length 101 [2023-12-21 08:41:05,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:05,959 INFO L495 AbstractCegarLoop]: Abstraction has 592 states and 933 transitions. [2023-12-21 08:41:05,959 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 08:41:05,959 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 933 transitions. [2023-12-21 08:41:05,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 08:41:05,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:05,962 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 08:41:05,972 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 08:41:06,168 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,SelfDestructingSolverStorable17 [2023-12-21 08:41:06,168 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:06,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:06,169 INFO L85 PathProgramCache]: Analyzing trace with hash 448637066, now seen corresponding path program 1 times [2023-12-21 08:41:06,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:06,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048478975] [2023-12-21 08:41:06,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:06,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:41:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:41:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 08:41:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:41:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 08:41:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 08:41:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,451 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 08:41:06,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:06,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048478975] [2023-12-21 08:41:06,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048478975] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:06,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482955038] [2023-12-21 08:41:06,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:06,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:06,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:06,453 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 08:41:06,479 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 08:41:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:06,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:41:06,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:06,823 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 08:41:06,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:06,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482955038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:06,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:06,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:41:06,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379296835] [2023-12-21 08:41:06,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:06,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:41:06,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:06,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:41:06,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:41:06,826 INFO L87 Difference]: Start difference. First operand 592 states and 933 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 08:41:07,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:07,333 INFO L93 Difference]: Finished difference Result 1122 states and 1818 transitions. [2023-12-21 08:41:07,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:41:07,333 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 08:41:07,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:07,335 INFO L225 Difference]: With dead ends: 1122 [2023-12-21 08:41:07,335 INFO L226 Difference]: Without dead ends: 600 [2023-12-21 08:41:07,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 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 08:41:07,338 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 821 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:07,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 2100 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 08:41:07,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2023-12-21 08:41:07,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2023-12-21 08:41:07,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 472 states have (on average 1.5826271186440677) internal successors, (747), 487 states have internal predecessors, (747), 99 states have call successors, (99), 29 states have call predecessors, (99), 28 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2023-12-21 08:41:07,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 946 transitions. [2023-12-21 08:41:07,407 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 946 transitions. Word has length 104 [2023-12-21 08:41:07,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:07,408 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 946 transitions. [2023-12-21 08:41:07,408 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 08:41:07,408 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 946 transitions. [2023-12-21 08:41:07,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 08:41:07,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:07,411 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 08:41:07,420 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 08:41:07,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:07,618 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:07,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:07,618 INFO L85 PathProgramCache]: Analyzing trace with hash 292828456, now seen corresponding path program 1 times [2023-12-21 08:41:07,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:07,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823569819] [2023-12-21 08:41:07,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:07,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:41:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:41:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 08:41:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:41:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:41:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:41:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:07,886 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 08:41:07,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:07,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823569819] [2023-12-21 08:41:07,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823569819] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:07,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555539835] [2023-12-21 08:41:07,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:07,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:07,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:07,889 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 08:41:07,911 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 08:41:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:08,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:41:08,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:08,239 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 08:41:08,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:08,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555539835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:08,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:08,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:41:08,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995024829] [2023-12-21 08:41:08,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:08,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:41:08,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:08,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:41:08,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:41:08,243 INFO L87 Difference]: Start difference. First operand 600 states and 946 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 08:41:08,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:08,722 INFO L93 Difference]: Finished difference Result 1138 states and 1841 transitions. [2023-12-21 08:41:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:41:08,722 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 08:41:08,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:08,725 INFO L225 Difference]: With dead ends: 1138 [2023-12-21 08:41:08,725 INFO L226 Difference]: Without dead ends: 608 [2023-12-21 08:41:08,728 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 08:41:08,728 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 814 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:08,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 2100 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 08:41:08,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2023-12-21 08:41:08,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2023-12-21 08:41:08,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 479 states have (on average 1.5845511482254697) internal successors, (759), 494 states have internal predecessors, (759), 99 states have call successors, (99), 30 states have call predecessors, (99), 29 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2023-12-21 08:41:08,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 959 transitions. [2023-12-21 08:41:08,820 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 959 transitions. Word has length 107 [2023-12-21 08:41:08,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:08,820 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 959 transitions. [2023-12-21 08:41:08,820 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 08:41:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 959 transitions. [2023-12-21 08:41:08,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 08:41:08,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:08,822 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 08:41:08,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-21 08:41:09,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:09,029 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:09,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:09,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1948230334, now seen corresponding path program 1 times [2023-12-21 08:41:09,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:09,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779826162] [2023-12-21 08:41:09,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:09,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:41:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:41:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 08:41:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:41:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:41:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 08:41:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,291 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 08:41:09,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:09,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779826162] [2023-12-21 08:41:09,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779826162] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:09,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882393835] [2023-12-21 08:41:09,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:09,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:09,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:09,293 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 08:41:09,309 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 08:41:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:09,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:41:09,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:09,626 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 08:41:09,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:09,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882393835] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:09,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:09,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:41:09,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677440274] [2023-12-21 08:41:09,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:09,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:41:09,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:09,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:41:09,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:41:09,628 INFO L87 Difference]: Start difference. First operand 608 states and 959 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 08:41:10,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:10,117 INFO L93 Difference]: Finished difference Result 1154 states and 1864 transitions. [2023-12-21 08:41:10,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:41:10,118 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 08:41:10,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:10,120 INFO L225 Difference]: With dead ends: 1154 [2023-12-21 08:41:10,120 INFO L226 Difference]: Without dead ends: 616 [2023-12-21 08:41:10,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 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 08:41:10,123 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 803 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:10,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 2100 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 08:41:10,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-12-21 08:41:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2023-12-21 08:41:10,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 486 states have (on average 1.5864197530864197) internal successors, (771), 501 states have internal predecessors, (771), 99 states have call successors, (99), 31 states have call predecessors, (99), 30 states have return successors, (102), 96 states have call predecessors, (102), 98 states have call successors, (102) [2023-12-21 08:41:10,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 972 transitions. [2023-12-21 08:41:10,198 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 972 transitions. Word has length 110 [2023-12-21 08:41:10,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:10,199 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 972 transitions. [2023-12-21 08:41:10,199 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 08:41:10,199 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 972 transitions. [2023-12-21 08:41:10,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 08:41:10,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:10,201 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 08:41:10,212 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 08:41:10,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:10,409 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:10,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:10,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1345513956, now seen corresponding path program 1 times [2023-12-21 08:41:10,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:10,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319769364] [2023-12-21 08:41:10,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:10,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:41:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:41:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:41:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 08:41:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:10,918 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 08:41:10,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:10,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319769364] [2023-12-21 08:41:10,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319769364] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:10,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306927682] [2023-12-21 08:41:10,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:10,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:10,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:10,921 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 08:41:10,950 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 08:41:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:11,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 08:41:11,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:11,346 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 08:41:11,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:11,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306927682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:11,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:11,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-21 08:41:11,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046648783] [2023-12-21 08:41:11,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:11,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:41:11,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:11,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:41:11,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:41:11,348 INFO L87 Difference]: Start difference. First operand 616 states and 972 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 08:41:11,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:11,928 INFO L93 Difference]: Finished difference Result 1714 states and 2794 transitions. [2023-12-21 08:41:11,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:41:11,930 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 08:41:11,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:11,935 INFO L225 Difference]: With dead ends: 1714 [2023-12-21 08:41:11,935 INFO L226 Difference]: Without dead ends: 1168 [2023-12-21 08:41:11,937 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 08:41:11,937 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 803 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:11,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 3330 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:41:11,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2023-12-21 08:41:12,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1160. [2023-12-21 08:41:12,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 908 states have (on average 1.6090308370044053) internal successors, (1461), 939 states have internal predecessors, (1461), 192 states have call successors, (192), 59 states have call predecessors, (192), 59 states have return successors, (218), 187 states have call predecessors, (218), 190 states have call successors, (218) [2023-12-21 08:41:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1871 transitions. [2023-12-21 08:41:12,162 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1871 transitions. Word has length 113 [2023-12-21 08:41:12,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:12,162 INFO L495 AbstractCegarLoop]: Abstraction has 1160 states and 1871 transitions. [2023-12-21 08:41:12,163 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 08:41:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1871 transitions. [2023-12-21 08:41:12,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 08:41:12,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:12,165 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 08:41:12,179 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 08:41:12,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-12-21 08:41:12,373 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:12,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:12,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2113617729, now seen corresponding path program 1 times [2023-12-21 08:41:12,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:12,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899603208] [2023-12-21 08:41:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:12,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:41:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:41:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:41:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:41:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:12,883 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 08:41:12,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:12,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899603208] [2023-12-21 08:41:12,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899603208] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:12,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421203338] [2023-12-21 08:41:12,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:12,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:12,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:12,885 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 08:41:12,909 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 08:41:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 08:41:13,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:13,174 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 08:41:13,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:13,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421203338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:13,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:13,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2023-12-21 08:41:13,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701600931] [2023-12-21 08:41:13,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:13,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 08:41:13,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:13,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 08:41:13,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:41:13,176 INFO L87 Difference]: Start difference. First operand 1160 states and 1871 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 08:41:13,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:13,528 INFO L93 Difference]: Finished difference Result 2787 states and 4577 transitions. [2023-12-21 08:41:13,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 08:41:13,528 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 08:41:13,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:13,536 INFO L225 Difference]: With dead ends: 2787 [2023-12-21 08:41:13,536 INFO L226 Difference]: Without dead ends: 1698 [2023-12-21 08:41:13,541 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 08:41:13,541 INFO L413 NwaCegarLoop]: 1593 mSDtfsCounter, 813 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 2438 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:13,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 2438 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:13,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2023-12-21 08:41:13,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1160. [2023-12-21 08:41:13,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1160 states, 908 states have (on average 1.6079295154185023) internal successors, (1460), 939 states have internal predecessors, (1460), 192 states have call successors, (192), 59 states have call predecessors, (192), 59 states have return successors, (218), 187 states have call predecessors, (218), 190 states have call successors, (218) [2023-12-21 08:41:13,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1870 transitions. [2023-12-21 08:41:13,724 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1870 transitions. Word has length 117 [2023-12-21 08:41:13,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:13,724 INFO L495 AbstractCegarLoop]: Abstraction has 1160 states and 1870 transitions. [2023-12-21 08:41:13,724 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 08:41:13,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1870 transitions. [2023-12-21 08:41:13,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 08:41:13,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:13,726 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 08:41:13,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-21 08:41:13,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:13,931 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:13,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:13,931 INFO L85 PathProgramCache]: Analyzing trace with hash -258121533, now seen corresponding path program 1 times [2023-12-21 08:41:13,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:13,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125949438] [2023-12-21 08:41:13,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:13,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:41:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:41:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:41:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:41:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,404 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 08:41:14,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:14,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125949438] [2023-12-21 08:41:14,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125949438] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:14,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590073966] [2023-12-21 08:41:14,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:14,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:14,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:14,406 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 08:41:14,409 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 08:41:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:41:14,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:14,766 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 08:41:14,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:14,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590073966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:14,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:14,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:41:14,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362271922] [2023-12-21 08:41:14,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:14,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:14,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:14,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:14,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:41:14,770 INFO L87 Difference]: Start difference. First operand 1160 states and 1870 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 08:41:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:15,099 INFO L93 Difference]: Finished difference Result 2880 states and 4675 transitions. [2023-12-21 08:41:15,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:15,099 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 08:41:15,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:15,105 INFO L225 Difference]: With dead ends: 2880 [2023-12-21 08:41:15,105 INFO L226 Difference]: Without dead ends: 1792 [2023-12-21 08:41:15,109 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 08:41:15,109 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 378 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 2740 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 08:41:15,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 2740 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:41:15,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2023-12-21 08:41:15,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1788. [2023-12-21 08:41:15,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1400 states have (on average 1.585) internal successors, (2219), 1435 states have internal predecessors, (2219), 288 states have call successors, (288), 99 states have call predecessors, (288), 99 states have return successors, (365), 279 states have call predecessors, (365), 284 states have call successors, (365) [2023-12-21 08:41:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2872 transitions. [2023-12-21 08:41:15,329 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2872 transitions. Word has length 117 [2023-12-21 08:41:15,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:15,329 INFO L495 AbstractCegarLoop]: Abstraction has 1788 states and 2872 transitions. [2023-12-21 08:41:15,330 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 08:41:15,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2872 transitions. [2023-12-21 08:41:15,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 08:41:15,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:15,333 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 08:41:15,339 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 08:41:15,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:15,535 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:15,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:15,536 INFO L85 PathProgramCache]: Analyzing trace with hash -56297599, now seen corresponding path program 1 times [2023-12-21 08:41:15,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:15,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845948936] [2023-12-21 08:41:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:15,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:41:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:41:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:41:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:15,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:16,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:41:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:16,001 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 08:41:16,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:16,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845948936] [2023-12-21 08:41:16,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845948936] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:16,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662154194] [2023-12-21 08:41:16,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:16,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:16,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:16,003 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 08:41:16,025 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 08:41:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:16,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:41:16,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:16,352 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 08:41:16,352 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:16,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662154194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:16,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:16,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2023-12-21 08:41:16,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478384437] [2023-12-21 08:41:16,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:16,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 08:41:16,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:16,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 08:41:16,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:41:16,354 INFO L87 Difference]: Start difference. First operand 1788 states and 2872 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 08:41:16,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:16,597 INFO L93 Difference]: Finished difference Result 3225 states and 5178 transitions. [2023-12-21 08:41:16,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 08:41:16,597 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 08:41:16,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:16,603 INFO L225 Difference]: With dead ends: 3225 [2023-12-21 08:41:16,603 INFO L226 Difference]: Without dead ends: 1509 [2023-12-21 08:41:16,608 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 08:41:16,608 INFO L413 NwaCegarLoop]: 934 mSDtfsCounter, 570 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1343 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 08:41:16,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1343 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:41:16,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2023-12-21 08:41:16,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2023-12-21 08:41:16,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1180 states have (on average 1.564406779661017) internal successors, (1846), 1207 states have internal predecessors, (1846), 241 states have call successors, (241), 89 states have call predecessors, (241), 87 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2023-12-21 08:41:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2383 transitions. [2023-12-21 08:41:16,808 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2383 transitions. Word has length 117 [2023-12-21 08:41:16,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:16,809 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 2383 transitions. [2023-12-21 08:41:16,809 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 08:41:16,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2383 transitions. [2023-12-21 08:41:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 08:41:16,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:16,811 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 08:41:16,817 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 08:41:17,011 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,SelfDestructingSolverStorable24 [2023-12-21 08:41:17,012 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:17,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:17,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1830463923, now seen corresponding path program 1 times [2023-12-21 08:41:17,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:17,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270420112] [2023-12-21 08:41:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:17,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:41:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:41:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:41:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 08:41:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 08:41:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:41:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:41:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 08:41:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,456 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 08:41:17,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:17,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270420112] [2023-12-21 08:41:17,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270420112] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:17,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314166711] [2023-12-21 08:41:17,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:17,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:17,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:17,458 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 08:41:17,481 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 08:41:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 1314 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:17,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:17,793 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 08:41:17,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:17,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314166711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:17,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:17,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:41:17,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311535545] [2023-12-21 08:41:17,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:17,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:17,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:17,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:17,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:41:17,795 INFO L87 Difference]: Start difference. First operand 1509 states and 2383 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 08:41:18,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:18,116 INFO L93 Difference]: Finished difference Result 3024 states and 4844 transitions. [2023-12-21 08:41:18,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:18,116 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 08:41:18,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:18,122 INFO L225 Difference]: With dead ends: 3024 [2023-12-21 08:41:18,122 INFO L226 Difference]: Without dead ends: 1587 [2023-12-21 08:41:18,127 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 08:41:18,127 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 213 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2328 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 08:41:18,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2328 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2023-12-21 08:41:18,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1587. [2023-12-21 08:41:18,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1587 states, 1256 states have (on average 1.585987261146497) internal successors, (1992), 1283 states have internal predecessors, (1992), 241 states have call successors, (241), 91 states have call predecessors, (241), 89 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2023-12-21 08:41:18,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1587 states to 1587 states and 2529 transitions. [2023-12-21 08:41:18,335 INFO L78 Accepts]: Start accepts. Automaton has 1587 states and 2529 transitions. Word has length 143 [2023-12-21 08:41:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:18,335 INFO L495 AbstractCegarLoop]: Abstraction has 1587 states and 2529 transitions. [2023-12-21 08:41:18,336 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 08:41:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1587 states and 2529 transitions. [2023-12-21 08:41:18,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-21 08:41:18,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:18,338 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 08:41:18,343 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 08:41:18,538 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,SelfDestructingSolverStorable25 [2023-12-21 08:41:18,539 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:18,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:18,539 INFO L85 PathProgramCache]: Analyzing trace with hash 995503891, now seen corresponding path program 1 times [2023-12-21 08:41:18,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:18,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874386406] [2023-12-21 08:41:18,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:18,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:18,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:41:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:41:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:41:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:41:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 08:41:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 08:41:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 08:41:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:18,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-21 08:41:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:18,945 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 08:41:18,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:18,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874386406] [2023-12-21 08:41:18,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874386406] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:18,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783541322] [2023-12-21 08:41:18,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:18,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:18,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:18,949 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 08:41:18,963 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 08:41:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:19,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:19,269 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 08:41:19,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:19,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783541322] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:19,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:19,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:41:19,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895555592] [2023-12-21 08:41:19,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:19,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:19,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:19,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:19,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:41:19,271 INFO L87 Difference]: Start difference. First operand 1587 states and 2529 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 08:41:19,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:19,641 INFO L93 Difference]: Finished difference Result 3180 states and 5134 transitions. [2023-12-21 08:41:19,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:19,641 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 08:41:19,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:19,648 INFO L225 Difference]: With dead ends: 3180 [2023-12-21 08:41:19,648 INFO L226 Difference]: Without dead ends: 1665 [2023-12-21 08:41:19,653 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 08:41:19,654 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 211 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2328 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 08:41:19,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2328 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:19,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2023-12-21 08:41:19,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1665. [2023-12-21 08:41:19,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1332 states have (on average 1.605105105105105) internal successors, (2138), 1359 states have internal predecessors, (2138), 241 states have call successors, (241), 93 states have call predecessors, (241), 91 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2023-12-21 08:41:19,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 2675 transitions. [2023-12-21 08:41:19,845 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 2675 transitions. Word has length 148 [2023-12-21 08:41:19,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:19,845 INFO L495 AbstractCegarLoop]: Abstraction has 1665 states and 2675 transitions. [2023-12-21 08:41:19,845 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 08:41:19,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 2675 transitions. [2023-12-21 08:41:19,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 08:41:19,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:19,848 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 08:41:19,854 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 08:41:20,048 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,SelfDestructingSolverStorable26 [2023-12-21 08:41:20,049 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:20,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:20,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1312655555, now seen corresponding path program 1 times [2023-12-21 08:41:20,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:20,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002024838] [2023-12-21 08:41:20,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:20,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:41:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:41:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:41:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:41:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:41:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:41:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 08:41:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 08:41:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,492 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 08:41:20,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:20,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002024838] [2023-12-21 08:41:20,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002024838] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:20,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513702418] [2023-12-21 08:41:20,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:20,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:20,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:20,494 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 08:41:20,512 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 08:41:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:20,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:20,765 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 08:41:20,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:20,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513702418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:20,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:20,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:41:20,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990088787] [2023-12-21 08:41:20,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:20,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:20,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:20,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:20,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:41:20,767 INFO L87 Difference]: Start difference. First operand 1665 states and 2675 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 08:41:21,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:21,078 INFO L93 Difference]: Finished difference Result 3336 states and 5424 transitions. [2023-12-21 08:41:21,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:21,078 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 08:41:21,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:21,085 INFO L225 Difference]: With dead ends: 3336 [2023-12-21 08:41:21,085 INFO L226 Difference]: Without dead ends: 1743 [2023-12-21 08:41:21,090 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 08:41:21,090 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 209 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2328 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 08:41:21,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2328 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:21,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2023-12-21 08:41:21,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1743. [2023-12-21 08:41:21,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1408 states have (on average 1.6221590909090908) internal successors, (2284), 1435 states have internal predecessors, (2284), 241 states have call successors, (241), 95 states have call predecessors, (241), 93 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2023-12-21 08:41:21,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2821 transitions. [2023-12-21 08:41:21,325 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2821 transitions. Word has length 152 [2023-12-21 08:41:21,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:21,326 INFO L495 AbstractCegarLoop]: Abstraction has 1743 states and 2821 transitions. [2023-12-21 08:41:21,326 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 08:41:21,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2821 transitions. [2023-12-21 08:41:21,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-21 08:41:21,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:21,329 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 08:41:21,335 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 08:41:21,529 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,SelfDestructingSolverStorable27 [2023-12-21 08:41:21,529 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:21,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:21,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1624311277, now seen corresponding path program 1 times [2023-12-21 08:41:21,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:21,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543479307] [2023-12-21 08:41:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:21,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:41:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:41:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:41:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:41:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 08:41:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 08:41:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 08:41:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 08:41:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:21,925 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 08:41:21,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:21,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543479307] [2023-12-21 08:41:21,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543479307] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:21,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549728793] [2023-12-21 08:41:21,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:21,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:21,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:21,928 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 08:41:21,935 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 08:41:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:22,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:22,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:22,185 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 08:41:22,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:22,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549728793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:22,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:22,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:41:22,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465090917] [2023-12-21 08:41:22,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:22,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:22,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:22,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:22,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:41:22,188 INFO L87 Difference]: Start difference. First operand 1743 states and 2821 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 08:41:22,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:22,499 INFO L93 Difference]: Finished difference Result 3492 states and 5714 transitions. [2023-12-21 08:41:22,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:22,500 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 08:41:22,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:22,508 INFO L225 Difference]: With dead ends: 3492 [2023-12-21 08:41:22,509 INFO L226 Difference]: Without dead ends: 1821 [2023-12-21 08:41:22,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 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 08:41:22,515 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 207 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2328 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 08:41:22,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2328 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:22,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2023-12-21 08:41:22,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2023-12-21 08:41:22,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1484 states have (on average 1.637466307277628) internal successors, (2430), 1511 states have internal predecessors, (2430), 241 states have call successors, (241), 97 states have call predecessors, (241), 95 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2023-12-21 08:41:22,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2967 transitions. [2023-12-21 08:41:22,796 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2967 transitions. Word has length 155 [2023-12-21 08:41:22,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:22,797 INFO L495 AbstractCegarLoop]: Abstraction has 1821 states and 2967 transitions. [2023-12-21 08:41:22,797 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 08:41:22,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2967 transitions. [2023-12-21 08:41:22,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-21 08:41:22,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:22,801 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 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] [2023-12-21 08:41:22,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 08:41:23,007 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,SelfDestructingSolverStorable28 [2023-12-21 08:41:23,007 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:23,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:23,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1650759517, now seen corresponding path program 1 times [2023-12-21 08:41:23,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:23,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219134604] [2023-12-21 08:41:23,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:23,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:23,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:41:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:41:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:41:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:41:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 08:41:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 08:41:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 08:41:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 08:41:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,387 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-21 08:41:23,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:23,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219134604] [2023-12-21 08:41:23,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219134604] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:23,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347731670] [2023-12-21 08:41:23,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:23,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:23,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:23,388 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 08:41:23,408 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 08:41:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:23,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-21 08:41:23,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:23,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347731670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:23,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:23,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:41:23,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733248835] [2023-12-21 08:41:23,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:23,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:23,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:23,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:23,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:41:23,654 INFO L87 Difference]: Start difference. First operand 1821 states and 2967 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 08:41:24,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:24,022 INFO L93 Difference]: Finished difference Result 3648 states and 6004 transitions. [2023-12-21 08:41:24,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:24,023 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 157 [2023-12-21 08:41:24,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:24,030 INFO L225 Difference]: With dead ends: 3648 [2023-12-21 08:41:24,030 INFO L226 Difference]: Without dead ends: 1899 [2023-12-21 08:41:24,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 187 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 08:41:24,035 INFO L413 NwaCegarLoop]: 784 mSDtfsCounter, 205 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:24,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2328 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 08:41:24,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2023-12-21 08:41:24,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1899. [2023-12-21 08:41:24,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1899 states, 1560 states have (on average 1.6512820512820512) internal successors, (2576), 1587 states have internal predecessors, (2576), 241 states have call successors, (241), 99 states have call predecessors, (241), 97 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2023-12-21 08:41:24,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 3113 transitions. [2023-12-21 08:41:24,299 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 3113 transitions. Word has length 157 [2023-12-21 08:41:24,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:24,300 INFO L495 AbstractCegarLoop]: Abstraction has 1899 states and 3113 transitions. [2023-12-21 08:41:24,300 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 08:41:24,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 3113 transitions. [2023-12-21 08:41:24,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-21 08:41:24,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:24,304 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:24,313 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 08:41:24,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:24,511 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:24,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:24,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1037003502, now seen corresponding path program 1 times [2023-12-21 08:41:24,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:24,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436399984] [2023-12-21 08:41:24,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:24,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:41:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:41:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:41:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:41:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 08:41:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 08:41:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 08:41:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 08:41:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-12-21 08:41:24,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:24,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436399984] [2023-12-21 08:41:24,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436399984] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:24,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620037557] [2023-12-21 08:41:24,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:24,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:24,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:24,901 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 08:41:24,921 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 08:41:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:25,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:41:25,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-21 08:41:25,156 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:25,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620037557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:25,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:25,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:41:25,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086415152] [2023-12-21 08:41:25,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:25,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:25,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:25,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:25,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:41:25,158 INFO L87 Difference]: Start difference. First operand 1899 states and 3113 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 08:41:25,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:25,429 INFO L93 Difference]: Finished difference Result 3782 states and 6274 transitions. [2023-12-21 08:41:25,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:25,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 08:41:25,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:25,436 INFO L225 Difference]: With dead ends: 3782 [2023-12-21 08:41:25,436 INFO L226 Difference]: Without dead ends: 1955 [2023-12-21 08:41:25,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 186 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 08:41:25,442 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 60 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:25,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 2545 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:41:25,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2023-12-21 08:41:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1907. [2023-12-21 08:41:25,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1907 states, 1568 states have (on average 1.6479591836734695) internal successors, (2584), 1595 states have internal predecessors, (2584), 241 states have call successors, (241), 99 states have call predecessors, (241), 97 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2023-12-21 08:41:25,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1907 states to 1907 states and 3121 transitions. [2023-12-21 08:41:25,674 INFO L78 Accepts]: Start accepts. Automaton has 1907 states and 3121 transitions. Word has length 157 [2023-12-21 08:41:25,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:25,675 INFO L495 AbstractCegarLoop]: Abstraction has 1907 states and 3121 transitions. [2023-12-21 08:41:25,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 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 08:41:25,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1907 states and 3121 transitions. [2023-12-21 08:41:25,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-21 08:41:25,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:25,678 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:25,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-21 08:41:25,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:25,879 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:25,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:25,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1267571367, now seen corresponding path program 1 times [2023-12-21 08:41:25,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:25,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795394358] [2023-12-21 08:41:25,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:25,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:41:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:41:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 08:41:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:41:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 08:41:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 08:41:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 08:41:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 08:41:26,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-21 08:41:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 08:41:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,339 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-21 08:41:26,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:26,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795394358] [2023-12-21 08:41:26,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795394358] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:26,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046396440] [2023-12-21 08:41:26,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:26,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:26,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:26,341 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 08:41:26,360 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 08:41:26,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 08:41:26,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-21 08:41:26,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:26,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046396440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:26,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:26,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2023-12-21 08:41:26,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858622773] [2023-12-21 08:41:26,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:26,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:41:26,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:41:26,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-12-21 08:41:26,806 INFO L87 Difference]: Start difference. First operand 1907 states and 3121 transitions. Second operand has 6 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-21 08:41:27,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:27,785 INFO L93 Difference]: Finished difference Result 5377 states and 8912 transitions. [2023-12-21 08:41:27,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:41:27,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2023-12-21 08:41:27,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:27,797 INFO L225 Difference]: With dead ends: 5377 [2023-12-21 08:41:27,797 INFO L226 Difference]: Without dead ends: 3540 [2023-12-21 08:41:27,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:41:27,803 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 733 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:27,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 3508 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 08:41:27,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3540 states. [2023-12-21 08:41:28,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3540 to 3536. [2023-12-21 08:41:28,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 2915 states have (on average 1.6542024013722127) internal successors, (4822), 2968 states have internal predecessors, (4822), 438 states have call successors, (438), 187 states have call predecessors, (438), 182 states have return successors, (529), 428 states have call predecessors, (529), 431 states have call successors, (529) [2023-12-21 08:41:28,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5789 transitions. [2023-12-21 08:41:28,173 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5789 transitions. Word has length 171 [2023-12-21 08:41:28,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:28,173 INFO L495 AbstractCegarLoop]: Abstraction has 3536 states and 5789 transitions. [2023-12-21 08:41:28,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-21 08:41:28,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5789 transitions. [2023-12-21 08:41:28,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 08:41:28,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:28,178 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:28,185 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 08:41:28,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:28,385 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:28,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:28,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2119122557, now seen corresponding path program 1 times [2023-12-21 08:41:28,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:28,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65707352] [2023-12-21 08:41:28,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:28,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 08:41:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:41:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:41:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:41:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:41:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 08:41:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 08:41:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-21 08:41:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 08:41:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-21 08:41:28,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:28,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65707352] [2023-12-21 08:41:28,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65707352] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:28,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024330840] [2023-12-21 08:41:28,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:28,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:28,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:28,814 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 08:41:28,821 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 08:41:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:29,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 1355 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-21 08:41:29,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:29,384 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-12-21 08:41:29,385 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:29,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024330840] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:29,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:29,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2023-12-21 08:41:29,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572122956] [2023-12-21 08:41:29,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:29,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:41:29,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:29,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:41:29,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:41:29,387 INFO L87 Difference]: Start difference. First operand 3536 states and 5789 transitions. Second operand has 9 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 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 08:41:32,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:32,540 INFO L93 Difference]: Finished difference Result 10998 states and 18231 transitions. [2023-12-21 08:41:32,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 08:41:32,540 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 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 166 [2023-12-21 08:41:32,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:32,570 INFO L225 Difference]: With dead ends: 10998 [2023-12-21 08:41:32,570 INFO L226 Difference]: Without dead ends: 6875 [2023-12-21 08:41:32,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2023-12-21 08:41:32,589 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 1946 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4218 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2055 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 4667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 4218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:32,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2055 Valid, 2379 Invalid, 4667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 4218 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 08:41:32,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6875 states. [2023-12-21 08:41:33,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6875 to 6744. [2023-12-21 08:41:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6744 states, 5464 states have (on average 1.6630673499267936) internal successors, (9087), 5617 states have internal predecessors, (9087), 915 states have call successors, (915), 337 states have call predecessors, (915), 364 states have return successors, (1141), 905 states have call predecessors, (1141), 908 states have call successors, (1141) [2023-12-21 08:41:33,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6744 states to 6744 states and 11143 transitions. [2023-12-21 08:41:33,492 INFO L78 Accepts]: Start accepts. Automaton has 6744 states and 11143 transitions. Word has length 166 [2023-12-21 08:41:33,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:33,493 INFO L495 AbstractCegarLoop]: Abstraction has 6744 states and 11143 transitions. [2023-12-21 08:41:33,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 7 states have internal predecessors, (103), 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 08:41:33,493 INFO L276 IsEmpty]: Start isEmpty. Operand 6744 states and 11143 transitions. [2023-12-21 08:41:33,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-21 08:41:33,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:33,503 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:33,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-21 08:41:33,710 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,SelfDestructingSolverStorable32 [2023-12-21 08:41:33,710 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:33,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:33,711 INFO L85 PathProgramCache]: Analyzing trace with hash -86071437, now seen corresponding path program 1 times [2023-12-21 08:41:33,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:33,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935869647] [2023-12-21 08:41:33,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:33,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:41:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 08:41:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:41:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:41:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:41:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:41:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 08:41:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 08:41:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-21 08:41:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 08:41:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:34,093 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-21 08:41:34,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:34,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935869647] [2023-12-21 08:41:34,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935869647] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:34,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:41:34,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:41:34,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236735513] [2023-12-21 08:41:34,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:34,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:41:34,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:34,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:41:34,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:41:34,095 INFO L87 Difference]: Start difference. First operand 6744 states and 11143 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 6 states have internal predecessors, (100), 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 08:41:38,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:38,997 INFO L93 Difference]: Finished difference Result 14741 states and 24694 transitions. [2023-12-21 08:41:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 08:41:38,997 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 6 states have internal predecessors, (100), 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 166 [2023-12-21 08:41:38,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:39,036 INFO L225 Difference]: With dead ends: 14741 [2023-12-21 08:41:39,037 INFO L226 Difference]: Without dead ends: 8309 [2023-12-21 08:41:39,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:41:39,054 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 814 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 3851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 3702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:39,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 2603 Invalid, 3851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-21 08:41:39,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8309 states. [2023-12-21 08:41:40,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8309 to 6764. [2023-12-21 08:41:40,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6764 states, 5484 states have (on average 1.6537199124726476) internal successors, (9069), 5637 states have internal predecessors, (9069), 915 states have call successors, (915), 337 states have call predecessors, (915), 364 states have return successors, (1141), 905 states have call predecessors, (1141), 908 states have call successors, (1141) [2023-12-21 08:41:40,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6764 states to 6764 states and 11125 transitions. [2023-12-21 08:41:40,265 INFO L78 Accepts]: Start accepts. Automaton has 6764 states and 11125 transitions. Word has length 166 [2023-12-21 08:41:40,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:40,265 INFO L495 AbstractCegarLoop]: Abstraction has 6764 states and 11125 transitions. [2023-12-21 08:41:40,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 6 states have internal predecessors, (100), 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 08:41:40,265 INFO L276 IsEmpty]: Start isEmpty. Operand 6764 states and 11125 transitions. [2023-12-21 08:41:40,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-21 08:41:40,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:40,277 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:40,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 08:41:40,277 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:40,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:40,277 INFO L85 PathProgramCache]: Analyzing trace with hash 626416735, now seen corresponding path program 1 times [2023-12-21 08:41:40,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:40,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914224027] [2023-12-21 08:41:40,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:40,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:41:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:41:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:41:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 08:41:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 08:41:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 08:41:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-21 08:41:40,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-21 08:41:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 08:41:40,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-21 08:41:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,590 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-21 08:41:40,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:40,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914224027] [2023-12-21 08:41:40,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914224027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:40,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:41:40,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:41:40,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949977299] [2023-12-21 08:41:40,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:40,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:41:40,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:40,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:41:40,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:41:40,593 INFO L87 Difference]: Start difference. First operand 6764 states and 11125 transitions. Second operand has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 08:41:45,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:45,509 INFO L93 Difference]: Finished difference Result 14533 states and 24493 transitions. [2023-12-21 08:41:45,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:41:45,510 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 172 [2023-12-21 08:41:45,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:45,545 INFO L225 Difference]: With dead ends: 14533 [2023-12-21 08:41:45,545 INFO L226 Difference]: Without dead ends: 7543 [2023-12-21 08:41:45,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:41:45,563 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 839 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 3651 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 3791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 3651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:45,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 2478 Invalid, 3791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 3651 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-21 08:41:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7543 states. [2023-12-21 08:41:46,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7543 to 6105. [2023-12-21 08:41:46,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6105 states, 5011 states have (on average 1.691079624825384) internal successors, (8474), 5139 states have internal predecessors, (8474), 764 states have call successors, (764), 316 states have call predecessors, (764), 329 states have return successors, (912), 745 states have call predecessors, (912), 757 states have call successors, (912) [2023-12-21 08:41:46,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6105 states to 6105 states and 10150 transitions. [2023-12-21 08:41:46,415 INFO L78 Accepts]: Start accepts. Automaton has 6105 states and 10150 transitions. Word has length 172 [2023-12-21 08:41:46,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:46,416 INFO L495 AbstractCegarLoop]: Abstraction has 6105 states and 10150 transitions. [2023-12-21 08:41:46,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 08:41:46,416 INFO L276 IsEmpty]: Start isEmpty. Operand 6105 states and 10150 transitions. [2023-12-21 08:41:46,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2023-12-21 08:41:46,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:46,432 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 6, 6, 5, 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, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:46,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 08:41:46,433 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:46,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:46,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1561593010, now seen corresponding path program 1 times [2023-12-21 08:41:46,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:46,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202456548] [2023-12-21 08:41:46,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:46,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:46,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:41:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:41:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:41:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 08:41:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:41:47,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:41:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:41:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:41:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-12-21 08:41:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:41:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:41:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 08:41:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-12-21 08:41:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-12-21 08:41:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2023-12-21 08:41:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-12-21 08:41:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:47,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-12-21 08:41:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2023-12-21 08:41:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2023-12-21 08:41:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-21 08:41:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2023-12-21 08:41:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-21 08:41:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-21 08:41:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-21 08:41:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-21 08:41:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 40 proven. 116 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2023-12-21 08:41:47,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:47,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202456548] [2023-12-21 08:41:47,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202456548] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:47,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834332779] [2023-12-21 08:41:47,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:47,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:47,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:47,593 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 08:41:47,595 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 08:41:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 3191 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 08:41:48,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 535 proven. 9 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2023-12-21 08:41:48,282 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:41:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 36 proven. 72 refuted. 0 times theorem prover too weak. 920 trivial. 0 not checked. [2023-12-21 08:41:48,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834332779] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:41:48,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:41:48,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 7, 8] total 25 [2023-12-21 08:41:48,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670217300] [2023-12-21 08:41:48,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:41:48,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-21 08:41:48,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:48,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-21 08:41:48,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2023-12-21 08:41:48,887 INFO L87 Difference]: Start difference. First operand 6105 states and 10150 transitions. Second operand has 25 states, 23 states have (on average 15.304347826086957) internal successors, (352), 17 states have internal predecessors, (352), 13 states have call successors, (94), 10 states have call predecessors, (94), 10 states have return successors, (89), 17 states have call predecessors, (89), 13 states have call successors, (89) [2023-12-21 08:42:45,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:45,550 INFO L93 Difference]: Finished difference Result 21653 states and 38266 transitions. [2023-12-21 08:42:45,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2023-12-21 08:42:45,550 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 15.304347826086957) internal successors, (352), 17 states have internal predecessors, (352), 13 states have call successors, (94), 10 states have call predecessors, (94), 10 states have return successors, (89), 17 states have call predecessors, (89), 13 states have call successors, (89) Word has length 442 [2023-12-21 08:42:45,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:45,620 INFO L225 Difference]: With dead ends: 21653 [2023-12-21 08:42:45,620 INFO L226 Difference]: Without dead ends: 16065 [2023-12-21 08:42:45,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1269 GetRequests, 1064 SyntacticMatches, 4 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16590 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=4545, Invalid=36461, Unknown=0, NotChecked=0, Total=41006 [2023-12-21 08:42:45,660 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 22595 mSDsluCounter, 8482 mSDsCounter, 0 mSdLazyCounter, 38046 mSolverCounterSat, 9674 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22595 SdHoareTripleChecker+Valid, 9471 SdHoareTripleChecker+Invalid, 47720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 9674 IncrementalHoareTripleChecker+Valid, 38046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:45,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22595 Valid, 9471 Invalid, 47720 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [9674 Valid, 38046 Invalid, 0 Unknown, 0 Unchecked, 28.2s Time] [2023-12-21 08:42:45,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16065 states. [2023-12-21 08:42:47,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16065 to 10723. [2023-12-21 08:42:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10723 states, 8670 states have (on average 1.6404844290657439) internal successors, (14223), 8909 states have internal predecessors, (14223), 1346 states have call successors, (1346), 624 states have call predecessors, (1346), 706 states have return successors, (1891), 1333 states have call predecessors, (1891), 1335 states have call successors, (1891) [2023-12-21 08:42:47,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10723 states to 10723 states and 17460 transitions. [2023-12-21 08:42:47,480 INFO L78 Accepts]: Start accepts. Automaton has 10723 states and 17460 transitions. Word has length 442 [2023-12-21 08:42:47,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:47,480 INFO L495 AbstractCegarLoop]: Abstraction has 10723 states and 17460 transitions. [2023-12-21 08:42:47,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 15.304347826086957) internal successors, (352), 17 states have internal predecessors, (352), 13 states have call successors, (94), 10 states have call predecessors, (94), 10 states have return successors, (89), 17 states have call predecessors, (89), 13 states have call successors, (89) [2023-12-21 08:42:47,480 INFO L276 IsEmpty]: Start isEmpty. Operand 10723 states and 17460 transitions. [2023-12-21 08:42:47,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2023-12-21 08:42:47,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:47,511 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 10, 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, 4, 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] [2023-12-21 08:42:47,524 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 08:42:47,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:47,722 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:47,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:47,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1958197286, now seen corresponding path program 1 times [2023-12-21 08:42:47,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:47,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966894066] [2023-12-21 08:42:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:47,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-21 08:42:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 08:42:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:42:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 08:42:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:42:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:42:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-12-21 08:42:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:42:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:42:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:42:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:42:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:42:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:42:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:42:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:42:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-12-21 08:42:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-21 08:42:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2023-12-21 08:42:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-12-21 08:42:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2023-12-21 08:42:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2023-12-21 08:42:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2023-12-21 08:42:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-12-21 08:42:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-12-21 08:42:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2023-12-21 08:42:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2023-12-21 08:42:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2023-12-21 08:42:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:48,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 61 proven. 39 refuted. 0 times theorem prover too weak. 1177 trivial. 0 not checked. [2023-12-21 08:42:48,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:48,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966894066] [2023-12-21 08:42:48,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966894066] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:48,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585936754] [2023-12-21 08:42:48,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:48,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:48,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:48,789 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 08:42:48,793 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 08:42:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:49,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 3388 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 08:42:49,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 1049 trivial. 0 not checked. [2023-12-21 08:42:49,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:42:49,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585936754] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:42:49,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:42:49,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 15 [2023-12-21 08:42:49,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391487737] [2023-12-21 08:42:49,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:42:49,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 08:42:49,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:49,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 08:42:49,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:42:49,410 INFO L87 Difference]: Start difference. First operand 10723 states and 17460 transitions. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-21 08:42:51,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:51,740 INFO L93 Difference]: Finished difference Result 21608 states and 35325 transitions. [2023-12-21 08:42:51,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:42:51,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 502 [2023-12-21 08:42:51,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:51,789 INFO L225 Difference]: With dead ends: 21608 [2023-12-21 08:42:51,789 INFO L226 Difference]: Without dead ends: 11997 [2023-12-21 08:42:51,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2023-12-21 08:42:51,815 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 161 mSDsluCounter, 4705 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 5698 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:51,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 5698 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:42:51,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11997 states. [2023-12-21 08:42:53,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11997 to 10819. [2023-12-21 08:42:53,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10819 states, 8746 states have (on average 1.6349188200320146) internal successors, (14299), 8993 states have internal predecessors, (14299), 1346 states have call successors, (1346), 624 states have call predecessors, (1346), 726 states have return successors, (1919), 1345 states have call predecessors, (1919), 1335 states have call successors, (1919) [2023-12-21 08:42:53,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10819 states to 10819 states and 17564 transitions. [2023-12-21 08:42:53,651 INFO L78 Accepts]: Start accepts. Automaton has 10819 states and 17564 transitions. Word has length 502 [2023-12-21 08:42:53,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:53,651 INFO L495 AbstractCegarLoop]: Abstraction has 10819 states and 17564 transitions. [2023-12-21 08:42:53,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-21 08:42:53,652 INFO L276 IsEmpty]: Start isEmpty. Operand 10819 states and 17564 transitions. [2023-12-21 08:42:53,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2023-12-21 08:42:53,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:53,685 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 7, 6, 6, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:42:53,698 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 08:42:53,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:53,895 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:53,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:53,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1628280878, now seen corresponding path program 1 times [2023-12-21 08:42:53,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:53,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397160087] [2023-12-21 08:42:53,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:53,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 08:42:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:42:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 08:42:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:42:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 08:42:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 08:42:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:42:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 08:42:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:42:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-12-21 08:42:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 08:42:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:42:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 08:42:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:42:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-12-21 08:42:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2023-12-21 08:42:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2023-12-21 08:42:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-12-21 08:42:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-21 08:42:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-12-21 08:42:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-21 08:42:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2023-12-21 08:42:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2023-12-21 08:42:54,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2023-12-21 08:42:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-21 08:42:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2023-12-21 08:42:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:54,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1023 backedges. 32 proven. 129 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2023-12-21 08:42:54,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:54,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397160087] [2023-12-21 08:42:54,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397160087] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:54,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942505883] [2023-12-21 08:42:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:54,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:54,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:54,981 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 08:42:55,007 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 08:42:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:55,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 3250 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 08:42:55,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:55,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1023 backedges. 555 proven. 20 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2023-12-21 08:42:55,823 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:42:56,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1023 backedges. 46 proven. 84 refuted. 0 times theorem prover too weak. 893 trivial. 0 not checked. [2023-12-21 08:42:56,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942505883] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:42:56,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:42:56,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 14] total 36 [2023-12-21 08:42:56,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467231896] [2023-12-21 08:42:56,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:42:56,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-21 08:42:56,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:56,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-21 08:42:56,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1147, Unknown=0, NotChecked=0, Total=1260 [2023-12-21 08:42:56,637 INFO L87 Difference]: Start difference. First operand 10819 states and 17564 transitions. Second operand has 36 states, 30 states have (on average 11.933333333333334) internal successors, (358), 26 states have internal predecessors, (358), 15 states have call successors, (96), 10 states have call predecessors, (96), 16 states have return successors, (94), 20 states have call predecessors, (94), 15 states have call successors, (94) [2023-12-21 08:44:38,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:44:38,747 INFO L93 Difference]: Finished difference Result 30719 states and 53956 transitions. [2023-12-21 08:44:38,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2023-12-21 08:44:38,748 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 30 states have (on average 11.933333333333334) internal successors, (358), 26 states have internal predecessors, (358), 15 states have call successors, (96), 10 states have call predecessors, (96), 16 states have return successors, (94), 20 states have call predecessors, (94), 15 states have call successors, (94) Word has length 461 [2023-12-21 08:44:38,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:44:38,827 INFO L225 Difference]: With dead ends: 30719 [2023-12-21 08:44:38,827 INFO L226 Difference]: Without dead ends: 21022 [2023-12-21 08:44:38,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1421 GetRequests, 1116 SyntacticMatches, 4 SemanticMatches, 301 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37949 ImplicationChecksByTransitivity, 49.8s TimeCoverageRelationStatistics Valid=8790, Invalid=82716, Unknown=0, NotChecked=0, Total=91506 [2023-12-21 08:44:38,870 INFO L413 NwaCegarLoop]: 1336 mSDtfsCounter, 45230 mSDsluCounter, 15714 mSDsCounter, 0 mSdLazyCounter, 64077 mSolverCounterSat, 20846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45230 SdHoareTripleChecker+Valid, 17050 SdHoareTripleChecker+Invalid, 84923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 20846 IncrementalHoareTripleChecker+Valid, 64077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:44:38,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45230 Valid, 17050 Invalid, 84923 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [20846 Valid, 64077 Invalid, 0 Unknown, 0 Unchecked, 45.6s Time] [2023-12-21 08:44:38,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21022 states. [2023-12-21 08:44:41,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21022 to 13913. [2023-12-21 08:44:41,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13913 states, 11278 states have (on average 1.6416917893243483) internal successors, (18515), 11602 states have internal predecessors, (18515), 1698 states have call successors, (1698), 764 states have call predecessors, (1698), 936 states have return successors, (2484), 1750 states have call predecessors, (2484), 1684 states have call successors, (2484) [2023-12-21 08:44:41,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13913 states to 13913 states and 22697 transitions. [2023-12-21 08:44:41,346 INFO L78 Accepts]: Start accepts. Automaton has 13913 states and 22697 transitions. Word has length 461 [2023-12-21 08:44:41,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:44:41,346 INFO L495 AbstractCegarLoop]: Abstraction has 13913 states and 22697 transitions. [2023-12-21 08:44:41,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 30 states have (on average 11.933333333333334) internal successors, (358), 26 states have internal predecessors, (358), 15 states have call successors, (96), 10 states have call predecessors, (96), 16 states have return successors, (94), 20 states have call predecessors, (94), 15 states have call successors, (94) [2023-12-21 08:44:41,347 INFO L276 IsEmpty]: Start isEmpty. Operand 13913 states and 22697 transitions. [2023-12-21 08:44:41,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2023-12-21 08:44:41,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:44:41,374 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 6, 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, 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, 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] [2023-12-21 08:44:41,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-21 08:44:41,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:44:41,575 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:44:41,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:44:41,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1193418362, now seen corresponding path program 1 times [2023-12-21 08:44:41,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:44:41,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263121292] [2023-12-21 08:44:41,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:41,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:44:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:44:42,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:44:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:44:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:44:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:44:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:44:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:44:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:44:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:44:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:44:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-12-21 08:44:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 08:44:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:44:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-21 08:44:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:44:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:44:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-12-21 08:44:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 08:44:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:44:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:44:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:44:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:44:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:44:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:44:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 08:44:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:44:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-21 08:44:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-12-21 08:44:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2023-12-21 08:44:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2023-12-21 08:44:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2023-12-21 08:44:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2023-12-21 08:44:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-12-21 08:44:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2023-12-21 08:44:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2023-12-21 08:44:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2023-12-21 08:44:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2023-12-21 08:44:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 537 [2023-12-21 08:44:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2023-12-21 08:44:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:42,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 96 proven. 136 refuted. 0 times theorem prover too weak. 1361 trivial. 0 not checked. [2023-12-21 08:44:42,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:44:42,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263121292] [2023-12-21 08:44:42,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263121292] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:44:42,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361225453] [2023-12-21 08:44:42,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:42,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:44:42,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:44:42,517 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 08:44:42,519 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 08:44:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:43,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 3558 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 08:44:43,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:44:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 1090 proven. 6 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2023-12-21 08:44:43,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:44:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1593 backedges. 105 proven. 61 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2023-12-21 08:44:44,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361225453] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:44:44,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:44:44,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 35 [2023-12-21 08:44:44,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122428128] [2023-12-21 08:44:44,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:44:44,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-21 08:44:44,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:44:44,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-21 08:44:44,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1061, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 08:44:44,362 INFO L87 Difference]: Start difference. First operand 13913 states and 22697 transitions. Second operand has 35 states, 30 states have (on average 17.266666666666666) internal successors, (518), 28 states have internal predecessors, (518), 17 states have call successors, (130), 11 states have call predecessors, (130), 19 states have return successors, (130), 19 states have call predecessors, (130), 17 states have call successors, (130) [2023-12-21 08:45:44,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:45:44,822 INFO L93 Difference]: Finished difference Result 68657 states and 128047 transitions. [2023-12-21 08:45:44,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2023-12-21 08:45:44,823 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 30 states have (on average 17.266666666666666) internal successors, (518), 28 states have internal predecessors, (518), 17 states have call successors, (130), 11 states have call predecessors, (130), 19 states have return successors, (130), 19 states have call predecessors, (130), 17 states have call successors, (130) Word has length 559 [2023-12-21 08:45:44,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:45:45,276 INFO L225 Difference]: With dead ends: 68657 [2023-12-21 08:45:45,276 INFO L226 Difference]: Without dead ends: 51823 [2023-12-21 08:45:45,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1478 GetRequests, 1283 SyntacticMatches, 4 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14765 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=6171, Invalid=30885, Unknown=0, NotChecked=0, Total=37056 [2023-12-21 08:45:45,404 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 21772 mSDsluCounter, 9913 mSDsCounter, 0 mSdLazyCounter, 27155 mSolverCounterSat, 9948 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21772 SdHoareTripleChecker+Valid, 10695 SdHoareTripleChecker+Invalid, 37103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 9948 IncrementalHoareTripleChecker+Valid, 27155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:45:45,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21772 Valid, 10695 Invalid, 37103 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [9948 Valid, 27155 Invalid, 0 Unknown, 0 Unchecked, 22.6s Time] [2023-12-21 08:45:45,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51823 states. [2023-12-21 08:45:52,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51823 to 30286. [2023-12-21 08:45:52,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30286 states, 24086 states have (on average 1.6071576849622187) internal successors, (38710), 24804 states have internal predecessors, (38710), 4000 states have call successors, (4000), 1775 states have call predecessors, (4000), 2199 states have return successors, (6160), 4234 states have call predecessors, (6160), 3972 states have call successors, (6160) [2023-12-21 08:45:52,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30286 states to 30286 states and 48870 transitions. [2023-12-21 08:45:52,218 INFO L78 Accepts]: Start accepts. Automaton has 30286 states and 48870 transitions. Word has length 559 [2023-12-21 08:45:52,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:45:52,218 INFO L495 AbstractCegarLoop]: Abstraction has 30286 states and 48870 transitions. [2023-12-21 08:45:52,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 30 states have (on average 17.266666666666666) internal successors, (518), 28 states have internal predecessors, (518), 17 states have call successors, (130), 11 states have call predecessors, (130), 19 states have return successors, (130), 19 states have call predecessors, (130), 17 states have call successors, (130) [2023-12-21 08:45:52,219 INFO L276 IsEmpty]: Start isEmpty. Operand 30286 states and 48870 transitions. [2023-12-21 08:45:52,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2023-12-21 08:45:52,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:45:52,273 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 17, 14, 12, 12, 11, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:45:52,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-21 08:45:52,473 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,SelfDestructingSolverStorable38 [2023-12-21 08:45:52,474 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:45:52,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:45:52,474 INFO L85 PathProgramCache]: Analyzing trace with hash -369163863, now seen corresponding path program 1 times [2023-12-21 08:45:52,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:45:52,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714790227] [2023-12-21 08:45:52,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:45:52,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:45:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:52,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:52,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:52,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:45:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:45:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:45:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:45:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:45:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:45:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:45:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:45:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:45:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:45:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-21 08:45:53,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 08:45:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:45:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 08:45:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:45:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 08:45:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-21 08:45:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:45:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:45:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:45:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:45:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:45:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:45:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:45:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:45:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2023-12-21 08:45:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2023-12-21 08:45:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-21 08:45:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-12-21 08:45:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2023-12-21 08:45:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2023-12-21 08:45:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2023-12-21 08:45:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2023-12-21 08:45:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2023-12-21 08:45:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2023-12-21 08:45:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2023-12-21 08:45:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2023-12-21 08:45:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:53,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1723 backedges. 96 proven. 94 refuted. 0 times theorem prover too weak. 1533 trivial. 0 not checked. [2023-12-21 08:45:53,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:45:53,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714790227] [2023-12-21 08:45:53,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714790227] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:45:53,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894014482] [2023-12-21 08:45:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:45:53,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:45:53,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:45:53,407 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 08:45:53,408 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 08:45:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:54,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 3548 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 08:45:54,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:45:54,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1723 backedges. 905 proven. 0 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2023-12-21 08:45:54,086 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:45:54,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894014482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:45:54,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:45:54,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-21 08:45:54,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838973171] [2023-12-21 08:45:54,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:45:54,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:45:54,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:45:54,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:45:54,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-21 08:45:54,089 INFO L87 Difference]: Start difference. First operand 30286 states and 48870 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-21 08:46:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:46:00,122 INFO L93 Difference]: Finished difference Result 60364 states and 98311 transitions. [2023-12-21 08:46:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 08:46:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 556 [2023-12-21 08:46:00,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:46:00,211 INFO L225 Difference]: With dead ends: 60364 [2023-12-21 08:46:00,211 INFO L226 Difference]: Without dead ends: 30876 [2023-12-21 08:46:00,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-12-21 08:46:00,281 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 12 mSDsluCounter, 1633 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:46:00,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2456 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:46:00,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30876 states. [2023-12-21 08:46:05,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30876 to 30463. [2023-12-21 08:46:05,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30463 states, 24263 states have (on average 1.6051601203478547) internal successors, (38946), 24981 states have internal predecessors, (38946), 4000 states have call successors, (4000), 1775 states have call predecessors, (4000), 2199 states have return successors, (6160), 4234 states have call predecessors, (6160), 3972 states have call successors, (6160) [2023-12-21 08:46:05,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30463 states to 30463 states and 49106 transitions. [2023-12-21 08:46:05,772 INFO L78 Accepts]: Start accepts. Automaton has 30463 states and 49106 transitions. Word has length 556 [2023-12-21 08:46:05,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:46:05,773 INFO L495 AbstractCegarLoop]: Abstraction has 30463 states and 49106 transitions. [2023-12-21 08:46:05,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-21 08:46:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 30463 states and 49106 transitions. [2023-12-21 08:46:05,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2023-12-21 08:46:05,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:46:05,828 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2023-12-21 08:46:05,836 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 08:46:06,028 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,SelfDestructingSolverStorable39 [2023-12-21 08:46:06,029 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:46:06,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:46:06,029 INFO L85 PathProgramCache]: Analyzing trace with hash -754784436, now seen corresponding path program 1 times [2023-12-21 08:46:06,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:46:06,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258654015] [2023-12-21 08:46:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:46:06,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:46:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:46:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:46:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:46:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:46:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:46:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:46:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:46:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:46:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:46:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:46:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:46:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:46:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:46:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-21 08:46:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:46:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:46:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 08:46:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:46:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 08:46:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:46:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:46:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:46:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 08:46:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-12-21 08:46:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:46:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:46:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 08:46:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:46:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 08:46:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:46:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 08:46:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 08:46:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-12-21 08:46:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:46:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-12-21 08:46:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2023-12-21 08:46:06,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:46:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-21 08:46:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2023-12-21 08:46:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2023-12-21 08:46:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-12-21 08:46:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2023-12-21 08:46:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2023-12-21 08:46:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-21 08:46:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2023-12-21 08:46:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:46:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2023-12-21 08:46:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:06,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 67 proven. 62 refuted. 0 times theorem prover too weak. 1121 trivial. 0 not checked. [2023-12-21 08:46:06,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:46:06,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258654015] [2023-12-21 08:46:06,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258654015] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:46:06,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640914788] [2023-12-21 08:46:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:46:06,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:46:06,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:46:06,828 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 08:46:06,830 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 08:46:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:46:07,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 3489 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 08:46:07,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:46:07,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 675 proven. 45 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2023-12-21 08:46:07,749 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:46:08,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 116 proven. 9 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2023-12-21 08:46:08,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640914788] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:46:08,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:46:08,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 28 [2023-12-21 08:46:08,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549539968] [2023-12-21 08:46:08,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:46:08,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-21 08:46:08,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:46:08,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-21 08:46:08,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2023-12-21 08:46:08,320 INFO L87 Difference]: Start difference. First operand 30463 states and 49106 transitions. Second operand has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 23 states have internal predecessors, (366), 15 states have call successors, (96), 9 states have call predecessors, (96), 13 states have return successors, (91), 17 states have call predecessors, (91), 15 states have call successors, (91) [2023-12-21 08:46:53,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:46:53,752 INFO L93 Difference]: Finished difference Result 103251 states and 187079 transitions. [2023-12-21 08:46:53,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-21 08:46:53,753 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 23 states have internal predecessors, (366), 15 states have call successors, (96), 9 states have call predecessors, (96), 13 states have return successors, (91), 17 states have call predecessors, (91), 15 states have call successors, (91) Word has length 529 [2023-12-21 08:46:53,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:46:54,238 INFO L225 Difference]: With dead ends: 103251 [2023-12-21 08:46:54,243 INFO L226 Difference]: Without dead ends: 73457 [2023-12-21 08:46:54,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1281 GetRequests, 1199 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1626 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1291, Invalid=5351, Unknown=0, NotChecked=0, Total=6642 [2023-12-21 08:46:54,448 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 7264 mSDsluCounter, 4384 mSDsCounter, 0 mSdLazyCounter, 23357 mSolverCounterSat, 2636 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7264 SdHoareTripleChecker+Valid, 4894 SdHoareTripleChecker+Invalid, 25993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2636 IncrementalHoareTripleChecker+Valid, 23357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:46:54,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7264 Valid, 4894 Invalid, 25993 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2636 Valid, 23357 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2023-12-21 08:46:54,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73457 states. [2023-12-21 08:47:04,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73457 to 48430. [2023-12-21 08:47:04,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48430 states, 38346 states have (on average 1.5770614927241433) internal successors, (60474), 39359 states have internal predecessors, (60474), 6337 states have call successors, (6337), 2928 states have call predecessors, (6337), 3746 states have return successors, (10860), 6886 states have call predecessors, (10860), 6302 states have call successors, (10860) [2023-12-21 08:47:04,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48430 states to 48430 states and 77671 transitions. [2023-12-21 08:47:04,300 INFO L78 Accepts]: Start accepts. Automaton has 48430 states and 77671 transitions. Word has length 529 [2023-12-21 08:47:04,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:47:04,300 INFO L495 AbstractCegarLoop]: Abstraction has 48430 states and 77671 transitions. [2023-12-21 08:47:04,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 23 states have internal predecessors, (366), 15 states have call successors, (96), 9 states have call predecessors, (96), 13 states have return successors, (91), 17 states have call predecessors, (91), 15 states have call successors, (91) [2023-12-21 08:47:04,300 INFO L276 IsEmpty]: Start isEmpty. Operand 48430 states and 77671 transitions. [2023-12-21 08:47:04,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2023-12-21 08:47:04,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:47:04,378 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 08:47:04,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-21 08:47:04,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:47:04,585 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:47:04,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:47:04,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1176122766, now seen corresponding path program 1 times [2023-12-21 08:47:04,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:47:04,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808837441] [2023-12-21 08:47:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:47:04,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:47:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:04,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:47:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:04,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:04,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:47:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:47:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:47:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:47:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 08:47:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:47:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:47:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:47:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:47:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:47:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:47:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 08:47:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 08:47:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-12-21 08:47:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:47:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:47:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 08:47:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:47:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 08:47:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:47:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:47:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:47:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:47:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-12-21 08:47:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:47:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:47:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-12-21 08:47:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 08:47:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-21 08:47:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:47:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:47:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:47:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 08:47:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-21 08:47:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:47:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2023-12-21 08:47:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2023-12-21 08:47:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2023-12-21 08:47:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:47:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-21 08:47:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2023-12-21 08:47:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2023-12-21 08:47:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2023-12-21 08:47:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 488 [2023-12-21 08:47:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2023-12-21 08:47:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2023-12-21 08:47:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2023-12-21 08:47:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:47:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2023-12-21 08:47:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 66 proven. 35 refuted. 0 times theorem prover too weak. 1105 trivial. 0 not checked. [2023-12-21 08:47:05,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:47:05,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808837441] [2023-12-21 08:47:05,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808837441] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:47:05,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091738255] [2023-12-21 08:47:05,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:47:05,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:47:05,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:47:05,302 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:47:05,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-21 08:47:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:47:05,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 3533 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 08:47:05,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:47:06,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 626 proven. 66 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2023-12-21 08:47:06,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:47:07,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 88 proven. 27 refuted. 0 times theorem prover too weak. 1091 trivial. 0 not checked. [2023-12-21 08:47:07,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091738255] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:47:07,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:47:07,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 14] total 31 [2023-12-21 08:47:07,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174412108] [2023-12-21 08:47:07,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:47:07,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-21 08:47:07,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:47:07,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-21 08:47:07,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=786, Unknown=0, NotChecked=0, Total=930 [2023-12-21 08:47:07,341 INFO L87 Difference]: Start difference. First operand 48430 states and 77671 transitions. Second operand has 31 states, 28 states have (on average 18.357142857142858) internal successors, (514), 24 states have internal predecessors, (514), 20 states have call successors, (126), 13 states have call predecessors, (126), 16 states have return successors, (117), 22 states have call predecessors, (117), 20 states have call successors, (117)