/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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 08:39:33,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 08:39:33,392 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 08:39:33,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 08:39:33,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 08:39:33,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 08:39:33,409 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 08:39:33,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 08:39:33,410 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 08:39:33,410 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 08:39:33,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 08:39:33,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 08:39:33,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 08:39:33,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 08:39:33,411 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 08:39:33,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 08:39:33,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 08:39:33,412 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 08:39:33,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 08:39:33,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 08:39:33,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 08:39:33,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 08:39:33,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 08:39:33,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 08:39:33,414 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 08:39:33,414 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 08:39:33,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 08:39:33,415 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 08:39:33,415 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 08:39:33,415 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 08:39:33,415 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 08:39:33,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 08:39:33,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 08:39:33,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 08:39:33,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 08:39:33,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 08:39:33,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 08:39:33,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 08:39:33,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 08:39:33,417 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 08:39:33,417 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 08:39:33,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 08:39:33,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 08:39:33,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 08:39:33,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 08:39:33,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 08:39:33,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 08:39:33,631 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 08:39:33,631 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 08:39:33,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2023-12-21 08:39:34,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 08:39:34,941 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 08:39:34,942 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2023-12-21 08:39:34,958 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5ed0809/bd9346fba77b45138e135879419d7ff0/FLAG175c68582 [2023-12-21 08:39:34,968 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5ed0809/bd9346fba77b45138e135879419d7ff0 [2023-12-21 08:39:34,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 08:39:34,971 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 08:39:34,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 08:39:34,974 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 08:39:34,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 08:39:34,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:39:34" (1/1) ... [2023-12-21 08:39:34,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e85db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:34, skipping insertion in model container [2023-12-21 08:39:34,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:39:34" (1/1) ... [2023-12-21 08:39:35,023 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 08:39:35,430 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_product28.cil.c[43703,43716] [2023-12-21 08:39:35,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 08:39:35,539 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 08:39:35,546 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-21 08:39:35,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [86] [2023-12-21 08:39:35,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [131] [2023-12-21 08:39:35,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [252] [2023-12-21 08:39:35,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1852] [2023-12-21 08:39:35,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1870] [2023-12-21 08:39:35,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2220] [2023-12-21 08:39:35,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2229] [2023-12-21 08:39:35,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2320] [2023-12-21 08:39:35,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2981] [2023-12-21 08:39:35,668 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_product28.cil.c[43703,43716] [2023-12-21 08:39:35,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 08:39:35,723 INFO L206 MainTranslator]: Completed translation [2023-12-21 08:39:35,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35 WrapperNode [2023-12-21 08:39:35,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 08:39:35,724 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 08:39:35,724 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 08:39:35,724 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 08:39:35,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,799 INFO L138 Inliner]: procedures = 94, calls = 341, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 1103 [2023-12-21 08:39:35,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 08:39:35,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 08:39:35,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 08:39:35,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 08:39:35,808 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,826 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,873 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-21 08:39:35,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,893 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 08:39:35,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 08:39:35,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 08:39:35,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 08:39:35,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (1/1) ... [2023-12-21 08:39:35,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 08:39:35,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:35,971 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 08:39:35,974 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 08:39:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 08:39:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-12-21 08:39:35,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-12-21 08:39:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-21 08:39:35,991 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-21 08:39:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-21 08:39:35,991 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-21 08:39:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-21 08:39:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-21 08:39:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-21 08:39:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-21 08:39:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-21 08:39:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-21 08:39:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-21 08:39:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-21 08:39:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-21 08:39:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-21 08:39:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-21 08:39:35,992 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-21 08:39:35,992 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-12-21 08:39:35,993 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-12-21 08:39:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-21 08:39:35,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-21 08:39:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-21 08:39:35,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-21 08:39:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-21 08:39:35,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-21 08:39:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-21 08:39:35,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-21 08:39:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-21 08:39:35,993 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-21 08:39:35,993 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-21 08:39:35,993 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-21 08:39:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-21 08:39:35,994 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-21 08:39:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-21 08:39:35,994 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-21 08:39:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-21 08:39:35,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-21 08:39:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-21 08:39:35,994 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-21 08:39:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 08:39:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 08:39:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 08:39:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 08:39:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 08:39:35,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-21 08:39:35,995 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-21 08:39:35,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-21 08:39:35,996 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-21 08:39:35,996 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-21 08:39:35,996 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-21 08:39:35,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-21 08:39:35,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 08:39:35,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 08:39:35,996 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-21 08:39:35,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-21 08:39:35,996 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-12-21 08:39:35,996 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-12-21 08:39:36,138 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 08:39:36,140 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 08:39:36,937 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 08:39:37,002 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 08:39:37,003 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 08:39:37,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:39:37 BoogieIcfgContainer [2023-12-21 08:39:37,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 08:39:37,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 08:39:37,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 08:39:37,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 08:39:37,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 08:39:34" (1/3) ... [2023-12-21 08:39:37,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e604207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:39:37, skipping insertion in model container [2023-12-21 08:39:37,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:39:35" (2/3) ... [2023-12-21 08:39:37,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e604207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:39:37, skipping insertion in model container [2023-12-21 08:39:37,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:39:37" (3/3) ... [2023-12-21 08:39:37,013 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.c [2023-12-21 08:39:37,026 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 08:39:37,026 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 08:39:37,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 08:39:37,084 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;@4d7a9f5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 08:39:37,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 08:39:37,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 532 states, 408 states have (on average 1.7083333333333333) internal successors, (697), 426 states have internal predecessors, (697), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-21 08:39:37,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-21 08:39:37,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:37,108 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:39:37,109 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:37,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:37,114 INFO L85 PathProgramCache]: Analyzing trace with hash -734151109, now seen corresponding path program 1 times [2023-12-21 08:39:37,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:37,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721657101] [2023-12-21 08:39:37,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:37,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:39:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 08:39:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 08:39:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:39:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:39:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:37,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:37,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721657101] [2023-12-21 08:39:37,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721657101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:37,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:37,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:37,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907505243] [2023-12-21 08:39:37,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:37,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:37,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:37,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:37,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:37,826 INFO L87 Difference]: Start difference. First operand has 532 states, 408 states have (on average 1.7083333333333333) internal successors, (697), 426 states have internal predecessors, (697), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:40,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:40,513 INFO L93 Difference]: Finished difference Result 1180 states and 1999 transitions. [2023-12-21 08:39:40,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:40,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-12-21 08:39:40,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:40,529 INFO L225 Difference]: With dead ends: 1180 [2023-12-21 08:39:40,529 INFO L226 Difference]: Without dead ends: 646 [2023-12-21 08:39:40,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 08:39:40,538 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 651 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1616 SdHoareTripleChecker+Invalid, 1803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:40,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1616 Invalid, 1803 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 08:39:40,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-21 08:39:40,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 531. [2023-12-21 08:39:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6911764705882353) internal successors, (690), 425 states have internal predecessors, (690), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:39:40,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 883 transitions. [2023-12-21 08:39:40,635 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 883 transitions. Word has length 52 [2023-12-21 08:39:40,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:40,635 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 883 transitions. [2023-12-21 08:39:40,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:40,636 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 883 transitions. [2023-12-21 08:39:40,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-21 08:39:40,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:40,638 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:39:40,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 08:39:40,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:40,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:40,639 INFO L85 PathProgramCache]: Analyzing trace with hash 473576812, now seen corresponding path program 1 times [2023-12-21 08:39:40,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:40,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114902002] [2023-12-21 08:39:40,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:40,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 08:39:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:39:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:39:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:39:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:39:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:40,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:40,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114902002] [2023-12-21 08:39:40,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114902002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:40,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:40,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:40,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699100363] [2023-12-21 08:39:40,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:40,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:40,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:40,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:40,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:40,834 INFO L87 Difference]: Start difference. First operand 531 states and 883 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:43,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:43,003 INFO L93 Difference]: Finished difference Result 1165 states and 1950 transitions. [2023-12-21 08:39:43,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:43,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-12-21 08:39:43,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:43,009 INFO L225 Difference]: With dead ends: 1165 [2023-12-21 08:39:43,009 INFO L226 Difference]: Without dead ends: 646 [2023-12-21 08:39:43,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:43,012 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 643 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:43,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 1574 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 08:39:43,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-21 08:39:43,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 531. [2023-12-21 08:39:43,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6887254901960784) internal successors, (689), 425 states have internal predecessors, (689), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:39:43,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 882 transitions. [2023-12-21 08:39:43,076 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 882 transitions. Word has length 53 [2023-12-21 08:39:43,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:43,077 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 882 transitions. [2023-12-21 08:39:43,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:43,077 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 882 transitions. [2023-12-21 08:39:43,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-21 08:39:43,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:43,081 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:39:43,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 08:39:43,081 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:43,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:43,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1179985193, now seen corresponding path program 1 times [2023-12-21 08:39:43,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:43,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144035093] [2023-12-21 08:39:43,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:43,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 08:39:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 08:39:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:39:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:39:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:39:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:43,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:43,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144035093] [2023-12-21 08:39:43,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144035093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:43,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:43,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:43,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453989017] [2023-12-21 08:39:43,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:43,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:43,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:43,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:43,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:43,348 INFO L87 Difference]: Start difference. First operand 531 states and 882 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:45,818 INFO L93 Difference]: Finished difference Result 1165 states and 1949 transitions. [2023-12-21 08:39:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:45,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2023-12-21 08:39:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:45,824 INFO L225 Difference]: With dead ends: 1165 [2023-12-21 08:39:45,824 INFO L226 Difference]: Without dead ends: 646 [2023-12-21 08:39:45,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:45,829 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 640 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:45,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 1447 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 08:39:45,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-21 08:39:45,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 531. [2023-12-21 08:39:45,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6862745098039216) internal successors, (688), 425 states have internal predecessors, (688), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:39:45,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 881 transitions. [2023-12-21 08:39:45,889 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 881 transitions. Word has length 54 [2023-12-21 08:39:45,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:45,891 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 881 transitions. [2023-12-21 08:39:45,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:45,893 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 881 transitions. [2023-12-21 08:39:45,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-21 08:39:45,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:45,900 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:39:45,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 08:39:45,900 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:45,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:45,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1339221688, now seen corresponding path program 1 times [2023-12-21 08:39:45,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:45,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948052543] [2023-12-21 08:39:45,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:45,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 08:39:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 08:39:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:39:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:46,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:39:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:39:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:46,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:46,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948052543] [2023-12-21 08:39:46,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948052543] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:46,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:46,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:46,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009270218] [2023-12-21 08:39:46,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:46,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:46,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:46,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:46,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:46,162 INFO L87 Difference]: Start difference. First operand 531 states and 881 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:48,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:48,520 INFO L93 Difference]: Finished difference Result 1165 states and 1948 transitions. [2023-12-21 08:39:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:48,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2023-12-21 08:39:48,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:48,524 INFO L225 Difference]: With dead ends: 1165 [2023-12-21 08:39:48,524 INFO L226 Difference]: Without dead ends: 646 [2023-12-21 08:39:48,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:48,526 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 637 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:48,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 1447 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 08:39:48,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-21 08:39:48,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 531. [2023-12-21 08:39:48,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6838235294117647) internal successors, (687), 425 states have internal predecessors, (687), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:39:48,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 880 transitions. [2023-12-21 08:39:48,562 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 880 transitions. Word has length 55 [2023-12-21 08:39:48,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:48,562 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 880 transitions. [2023-12-21 08:39:48,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:48,562 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 880 transitions. [2023-12-21 08:39:48,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-21 08:39:48,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:48,563 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:39:48,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 08:39:48,563 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:48,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:48,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1875959667, now seen corresponding path program 1 times [2023-12-21 08:39:48,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:48,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414497841] [2023-12-21 08:39:48,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:48,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 08:39:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 08:39:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:39:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:39:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:48,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:48,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414497841] [2023-12-21 08:39:48,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414497841] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:48,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:48,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:39:48,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136711724] [2023-12-21 08:39:48,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:48,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:48,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:48,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:48,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:39:48,792 INFO L87 Difference]: Start difference. First operand 531 states and 880 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:51,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:51,074 INFO L93 Difference]: Finished difference Result 1165 states and 1947 transitions. [2023-12-21 08:39:51,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:51,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-12-21 08:39:51,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:51,078 INFO L225 Difference]: With dead ends: 1165 [2023-12-21 08:39:51,078 INFO L226 Difference]: Without dead ends: 646 [2023-12-21 08:39:51,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:39:51,080 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 634 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1453 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:51,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1453 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 08:39:51,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-12-21 08:39:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 531. [2023-12-21 08:39:51,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 408 states have (on average 1.6813725490196079) internal successors, (686), 425 states have internal predecessors, (686), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:39:51,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 879 transitions. [2023-12-21 08:39:51,122 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 879 transitions. Word has length 56 [2023-12-21 08:39:51,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:51,122 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 879 transitions. [2023-12-21 08:39:51,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:51,122 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 879 transitions. [2023-12-21 08:39:51,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-21 08:39:51,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:51,123 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:39:51,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 08:39:51,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:51,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:51,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1971055324, now seen corresponding path program 1 times [2023-12-21 08:39:51,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:51,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300922574] [2023-12-21 08:39:51,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:51,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:51,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 08:39:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:39:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:39:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:51,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:51,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300922574] [2023-12-21 08:39:51,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300922574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:51,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:51,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:39:51,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633265750] [2023-12-21 08:39:51,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:51,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:39:51,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:51,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:39:51,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:39:51,369 INFO L87 Difference]: Start difference. First operand 531 states and 879 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:53,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:53,983 INFO L93 Difference]: Finished difference Result 1188 states and 1989 transitions. [2023-12-21 08:39:53,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 08:39:53,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-12-21 08:39:53,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:53,986 INFO L225 Difference]: With dead ends: 1188 [2023-12-21 08:39:53,986 INFO L226 Difference]: Without dead ends: 673 [2023-12-21 08:39:53,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:39:53,989 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 743 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 2524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:53,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 1800 Invalid, 2524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 08:39:53,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-21 08:39:54,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 550. [2023-12-21 08:39:54,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 426 states have (on average 1.676056338028169) internal successors, (714), 443 states have internal predecessors, (714), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:39:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 907 transitions. [2023-12-21 08:39:54,027 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 907 transitions. Word has length 57 [2023-12-21 08:39:54,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:54,027 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 907 transitions. [2023-12-21 08:39:54,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:54,027 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 907 transitions. [2023-12-21 08:39:54,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-21 08:39:54,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:54,028 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:39:54,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 08:39:54,028 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:54,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:54,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2058702580, now seen corresponding path program 1 times [2023-12-21 08:39:54,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:54,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858871821] [2023-12-21 08:39:54,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:54,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:54,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:54,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:54,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 08:39:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:54,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 08:39:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:54,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:54,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:39:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 08:39:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:54,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:54,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858871821] [2023-12-21 08:39:54,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858871821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:54,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:54,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:39:54,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016230455] [2023-12-21 08:39:54,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:54,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:39:54,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:54,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:39:54,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:39:54,297 INFO L87 Difference]: Start difference. First operand 550 states and 907 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:56,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:56,472 INFO L93 Difference]: Finished difference Result 1171 states and 1939 transitions. [2023-12-21 08:39:56,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:39:56,472 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2023-12-21 08:39:56,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:56,475 INFO L225 Difference]: With dead ends: 1171 [2023-12-21 08:39:56,475 INFO L226 Difference]: Without dead ends: 673 [2023-12-21 08:39:56,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 08:39:56,478 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 719 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 2394 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 2503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:56,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1795 Invalid, 2503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2394 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 08:39:56,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-21 08:39:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 550. [2023-12-21 08:39:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 426 states have (on average 1.664319248826291) internal successors, (709), 443 states have internal predecessors, (709), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:39:56,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 902 transitions. [2023-12-21 08:39:56,515 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 902 transitions. Word has length 58 [2023-12-21 08:39:56,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:56,516 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 902 transitions. [2023-12-21 08:39:56,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:56,516 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 902 transitions. [2023-12-21 08:39:56,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-21 08:39:56,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:56,517 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:39:56,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 08:39:56,517 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:56,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2108695401, now seen corresponding path program 1 times [2023-12-21 08:39:56,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:56,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917004630] [2023-12-21 08:39:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:56,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 08:39:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:39:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:39:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 08:39:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:56,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:56,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:56,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917004630] [2023-12-21 08:39:56,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917004630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:56,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:56,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:39:56,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621038915] [2023-12-21 08:39:56,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:56,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:39:56,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:56,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:39:56,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:39:56,784 INFO L87 Difference]: Start difference. First operand 550 states and 902 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:58,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:58,662 INFO L93 Difference]: Finished difference Result 1171 states and 1934 transitions. [2023-12-21 08:39:58,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:39:58,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2023-12-21 08:39:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:58,666 INFO L225 Difference]: With dead ends: 1171 [2023-12-21 08:39:58,666 INFO L226 Difference]: Without dead ends: 673 [2023-12-21 08:39:58,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 08:39:58,669 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 713 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 2483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:58,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 1790 Invalid, 2483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 08:39:58,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-21 08:39:58,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 550. [2023-12-21 08:39:58,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 426 states have (on average 1.6525821596244132) internal successors, (704), 443 states have internal predecessors, (704), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:39:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 897 transitions. [2023-12-21 08:39:58,748 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 897 transitions. Word has length 59 [2023-12-21 08:39:58,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:58,748 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 897 transitions. [2023-12-21 08:39:58,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:39:58,749 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 897 transitions. [2023-12-21 08:39:58,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-21 08:39:58,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:58,749 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:39:58,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 08:39:58,749 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:58,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:58,750 INFO L85 PathProgramCache]: Analyzing trace with hash -954945063, now seen corresponding path program 1 times [2023-12-21 08:39:58,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:58,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070207881] [2023-12-21 08:39:58,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:58,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:39:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:39:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:39:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:39:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:39:58,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:58,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070207881] [2023-12-21 08:39:58,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070207881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:58,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:58,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:39:58,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773447879] [2023-12-21 08:39:58,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:58,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:39:58,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:58,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:39:58,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:39:58,987 INFO L87 Difference]: Start difference. First operand 550 states and 897 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:01,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:01,180 INFO L93 Difference]: Finished difference Result 1171 states and 1929 transitions. [2023-12-21 08:40:01,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:40:01,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-21 08:40:01,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:01,184 INFO L225 Difference]: With dead ends: 1171 [2023-12-21 08:40:01,184 INFO L226 Difference]: Without dead ends: 673 [2023-12-21 08:40:01,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 08:40:01,216 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 707 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:01,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1786 Invalid, 2463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 08:40:01,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2023-12-21 08:40:01,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 550. [2023-12-21 08:40:01,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 426 states have (on average 1.6408450704225352) internal successors, (699), 443 states have internal predecessors, (699), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:40:01,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 892 transitions. [2023-12-21 08:40:01,252 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 892 transitions. Word has length 60 [2023-12-21 08:40:01,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:01,252 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 892 transitions. [2023-12-21 08:40:01,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 892 transitions. [2023-12-21 08:40:01,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-21 08:40:01,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:01,253 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:40:01,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 08:40:01,254 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:01,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:01,254 INFO L85 PathProgramCache]: Analyzing trace with hash 362239226, now seen corresponding path program 1 times [2023-12-21 08:40:01,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:01,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412493880] [2023-12-21 08:40:01,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:01,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:40:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:40:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:40:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:40:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:01,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:40:01,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:01,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412493880] [2023-12-21 08:40:01,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412493880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:01,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:01,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:40:01,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7034814] [2023-12-21 08:40:01,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:01,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:01,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:01,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:01,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:40:01,511 INFO L87 Difference]: Start difference. First operand 550 states and 892 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:03,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:03,933 INFO L93 Difference]: Finished difference Result 1191 states and 1956 transitions. [2023-12-21 08:40:03,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 08:40:03,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 60 [2023-12-21 08:40:03,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:03,937 INFO L225 Difference]: With dead ends: 1191 [2023-12-21 08:40:03,937 INFO L226 Difference]: Without dead ends: 699 [2023-12-21 08:40:03,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:03,938 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 693 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:03,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 1400 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 08:40:03,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2023-12-21 08:40:03,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 554. [2023-12-21 08:40:03,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 430 states have (on average 1.6348837209302325) internal successors, (703), 447 states have internal predecessors, (703), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:40:03,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 896 transitions. [2023-12-21 08:40:03,977 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 896 transitions. Word has length 60 [2023-12-21 08:40:03,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:03,977 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 896 transitions. [2023-12-21 08:40:03,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:03,977 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 896 transitions. [2023-12-21 08:40:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 08:40:03,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:03,978 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:40:03,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 08:40:03,978 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:03,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:03,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1756969554, now seen corresponding path program 1 times [2023-12-21 08:40:03,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:03,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290486] [2023-12-21 08:40:03,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:03,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:04,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:04,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:04,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:04,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:40:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:04,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:40:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:04,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:04,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:40:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:04,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:40:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:04,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:40:04,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:04,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290486] [2023-12-21 08:40:04,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290486] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:04,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:04,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:40:04,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110590282] [2023-12-21 08:40:04,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:04,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:04,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:04,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:04,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:40:04,248 INFO L87 Difference]: Start difference. First operand 554 states and 896 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:06,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:06,539 INFO L93 Difference]: Finished difference Result 1181 states and 1933 transitions. [2023-12-21 08:40:06,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:40:06,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-21 08:40:06,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:06,543 INFO L225 Difference]: With dead ends: 1181 [2023-12-21 08:40:06,543 INFO L226 Difference]: Without dead ends: 679 [2023-12-21 08:40:06,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-21 08:40:06,545 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 701 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:06,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1786 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 08:40:06,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2023-12-21 08:40:06,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 554. [2023-12-21 08:40:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 430 states have (on average 1.6232558139534883) internal successors, (698), 447 states have internal predecessors, (698), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:40:06,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 891 transitions. [2023-12-21 08:40:06,580 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 891 transitions. Word has length 61 [2023-12-21 08:40:06,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:06,580 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 891 transitions. [2023-12-21 08:40:06,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:06,580 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 891 transitions. [2023-12-21 08:40:06,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-21 08:40:06,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:06,581 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:40:06,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 08:40:06,581 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:06,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:06,582 INFO L85 PathProgramCache]: Analyzing trace with hash 811041067, now seen corresponding path program 1 times [2023-12-21 08:40:06,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:06,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637165499] [2023-12-21 08:40:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:06,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:40:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:40:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:40:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:40:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:06,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:40:06,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:06,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637165499] [2023-12-21 08:40:06,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637165499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:06,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:06,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:40:06,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852679971] [2023-12-21 08:40:06,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:06,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:06,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:06,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:06,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:40:06,800 INFO L87 Difference]: Start difference. First operand 554 states and 891 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:09,171 INFO L93 Difference]: Finished difference Result 1199 states and 1955 transitions. [2023-12-21 08:40:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 08:40:09,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2023-12-21 08:40:09,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:09,174 INFO L225 Difference]: With dead ends: 1199 [2023-12-21 08:40:09,174 INFO L226 Difference]: Without dead ends: 705 [2023-12-21 08:40:09,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:09,176 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 694 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:09,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 1389 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 08:40:09,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2023-12-21 08:40:09,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 560. [2023-12-21 08:40:09,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 436 states have (on average 1.614678899082569) internal successors, (704), 453 states have internal predecessors, (704), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:40:09,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 897 transitions. [2023-12-21 08:40:09,211 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 897 transitions. Word has length 61 [2023-12-21 08:40:09,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:09,211 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 897 transitions. [2023-12-21 08:40:09,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:09,211 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 897 transitions. [2023-12-21 08:40:09,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-21 08:40:09,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:09,212 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:40:09,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 08:40:09,212 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:09,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:09,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1168375618, now seen corresponding path program 1 times [2023-12-21 08:40:09,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:09,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156232571] [2023-12-21 08:40:09,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:09,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:40:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:40:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:40:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:40:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:40:09,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:09,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156232571] [2023-12-21 08:40:09,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156232571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:09,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:09,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:40:09,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471436909] [2023-12-21 08:40:09,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:09,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:40:09,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:09,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:40:09,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:09,454 INFO L87 Difference]: Start difference. First operand 560 states and 897 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 08:40:12,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:12,604 INFO L93 Difference]: Finished difference Result 1209 states and 1963 transitions. [2023-12-21 08:40:12,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 08:40:12,605 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2023-12-21 08:40:12,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:12,608 INFO L225 Difference]: With dead ends: 1209 [2023-12-21 08:40:12,608 INFO L226 Difference]: Without dead ends: 714 [2023-12-21 08:40:12,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:40:12,609 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 715 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 3880 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 3245 SdHoareTripleChecker+Invalid, 3988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 3880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:12,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 3245 Invalid, 3988 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 3880 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 08:40:12,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2023-12-21 08:40:12,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 570. [2023-12-21 08:40:12,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 443 states have (on average 1.6117381489841986) internal successors, (714), 462 states have internal predecessors, (714), 98 states have call successors, (98), 27 states have call predecessors, (98), 28 states have return successors, (99), 94 states have call predecessors, (99), 97 states have call successors, (99) [2023-12-21 08:40:12,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 911 transitions. [2023-12-21 08:40:12,646 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 911 transitions. Word has length 62 [2023-12-21 08:40:12,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:12,646 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 911 transitions. [2023-12-21 08:40:12,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 08:40:12,646 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 911 transitions. [2023-12-21 08:40:12,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-21 08:40:12,647 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:12,647 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:40:12,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 08:40:12,647 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:12,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:12,647 INFO L85 PathProgramCache]: Analyzing trace with hash -807142241, now seen corresponding path program 1 times [2023-12-21 08:40:12,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:12,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061575255] [2023-12-21 08:40:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:12,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:40:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:40:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:40:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:40:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:40:12,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:12,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061575255] [2023-12-21 08:40:12,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061575255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:12,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:12,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:40:12,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414336798] [2023-12-21 08:40:12,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:12,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:12,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:12,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:12,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:40:12,835 INFO L87 Difference]: Start difference. First operand 570 states and 911 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:15,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:15,118 INFO L93 Difference]: Finished difference Result 1229 states and 1992 transitions. [2023-12-21 08:40:15,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 08:40:15,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-12-21 08:40:15,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:15,122 INFO L225 Difference]: With dead ends: 1229 [2023-12-21 08:40:15,122 INFO L226 Difference]: Without dead ends: 730 [2023-12-21 08:40:15,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:15,123 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 690 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1391 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:15,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1391 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 08:40:15,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-21 08:40:15,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 578. [2023-12-21 08:40:15,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 451 states have (on average 1.598669623059867) internal successors, (721), 470 states have internal predecessors, (721), 98 states have call successors, (98), 27 states have call predecessors, (98), 28 states have return successors, (99), 94 states have call predecessors, (99), 97 states have call successors, (99) [2023-12-21 08:40:15,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 918 transitions. [2023-12-21 08:40:15,161 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 918 transitions. Word has length 62 [2023-12-21 08:40:15,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:15,161 INFO L495 AbstractCegarLoop]: Abstraction has 578 states and 918 transitions. [2023-12-21 08:40:15,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:15,162 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 918 transitions. [2023-12-21 08:40:15,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-21 08:40:15,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:15,162 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:40:15,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 08:40:15,163 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:15,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:15,163 INFO L85 PathProgramCache]: Analyzing trace with hash -35185025, now seen corresponding path program 1 times [2023-12-21 08:40:15,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:15,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322730546] [2023-12-21 08:40:15,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:15,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:40:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:40:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:40:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:40:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:40:15,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:15,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322730546] [2023-12-21 08:40:15,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322730546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:15,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:15,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:40:15,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665676389] [2023-12-21 08:40:15,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:15,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:15,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:15,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:15,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:40:15,358 INFO L87 Difference]: Start difference. First operand 578 states and 918 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:17,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:17,280 INFO L93 Difference]: Finished difference Result 1274 states and 2038 transitions. [2023-12-21 08:40:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:40:17,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2023-12-21 08:40:17,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:17,283 INFO L225 Difference]: With dead ends: 1274 [2023-12-21 08:40:17,283 INFO L226 Difference]: Without dead ends: 690 [2023-12-21 08:40:17,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 08:40:17,287 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 634 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:17,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 1503 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 08:40:17,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-12-21 08:40:17,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 560. [2023-12-21 08:40:17,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 436 states have (on average 1.603211009174312) internal successors, (699), 453 states have internal predecessors, (699), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:40:17,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 892 transitions. [2023-12-21 08:40:17,323 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 892 transitions. Word has length 62 [2023-12-21 08:40:17,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:17,324 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 892 transitions. [2023-12-21 08:40:17,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:17,324 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 892 transitions. [2023-12-21 08:40:17,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-21 08:40:17,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:17,326 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:40:17,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 08:40:17,326 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:17,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:17,326 INFO L85 PathProgramCache]: Analyzing trace with hash -2077355728, now seen corresponding path program 1 times [2023-12-21 08:40:17,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:17,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559180051] [2023-12-21 08:40:17,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:17,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:40:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 08:40:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:40:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:17,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:40:17,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:17,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559180051] [2023-12-21 08:40:17,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559180051] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:17,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:17,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 08:40:17,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837924337] [2023-12-21 08:40:17,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:17,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:17,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:17,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:17,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:40:17,520 INFO L87 Difference]: Start difference. First operand 560 states and 892 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:19,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:19,519 INFO L93 Difference]: Finished difference Result 1217 states and 1959 transitions. [2023-12-21 08:40:19,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 08:40:19,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2023-12-21 08:40:19,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:19,522 INFO L225 Difference]: With dead ends: 1217 [2023-12-21 08:40:19,522 INFO L226 Difference]: Without dead ends: 716 [2023-12-21 08:40:19,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:19,524 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 672 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:19,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 1387 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 08:40:19,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-12-21 08:40:19,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 570. [2023-12-21 08:40:19,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 446 states have (on average 1.5896860986547086) internal successors, (709), 463 states have internal predecessors, (709), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-21 08:40:19,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 902 transitions. [2023-12-21 08:40:19,577 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 902 transitions. Word has length 63 [2023-12-21 08:40:19,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:19,578 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 902 transitions. [2023-12-21 08:40:19,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-21 08:40:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 902 transitions. [2023-12-21 08:40:19,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-21 08:40:19,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:19,578 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 08:40:19,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 08:40:19,579 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:19,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:19,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1258989996, now seen corresponding path program 1 times [2023-12-21 08:40:19,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:19,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536300459] [2023-12-21 08:40:19,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:19,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:40:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 08:40:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:40:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:19,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 08:40:19,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:19,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536300459] [2023-12-21 08:40:19,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536300459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:19,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:19,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 08:40:19,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571803163] [2023-12-21 08:40:19,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:19,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:40:19,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:19,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:40:19,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 08:40:19,763 INFO L87 Difference]: Start difference. First operand 570 states and 902 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 08:40:22,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:22,847 INFO L93 Difference]: Finished difference Result 1786 states and 2908 transitions. [2023-12-21 08:40:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:40:22,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2023-12-21 08:40:22,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:22,871 INFO L225 Difference]: With dead ends: 1786 [2023-12-21 08:40:22,871 INFO L226 Difference]: Without dead ends: 1286 [2023-12-21 08:40:22,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 08:40:22,885 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 1860 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 1599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:22,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1958 Valid, 1007 Invalid, 1599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-21 08:40:22,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2023-12-21 08:40:22,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 996. [2023-12-21 08:40:22,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 996 states, 780 states have (on average 1.6128205128205129) internal successors, (1258), 806 states have internal predecessors, (1258), 170 states have call successors, (170), 47 states have call predecessors, (170), 45 states have return successors, (175), 157 states have call predecessors, (175), 168 states have call successors, (175) [2023-12-21 08:40:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 996 states to 996 states and 1603 transitions. [2023-12-21 08:40:22,977 INFO L78 Accepts]: Start accepts. Automaton has 996 states and 1603 transitions. Word has length 64 [2023-12-21 08:40:22,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:22,978 INFO L495 AbstractCegarLoop]: Abstraction has 996 states and 1603 transitions. [2023-12-21 08:40:22,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-21 08:40:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand 996 states and 1603 transitions. [2023-12-21 08:40:22,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 08:40:22,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:22,981 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 08:40:22,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 08:40:22,981 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:22,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:22,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1006336597, now seen corresponding path program 1 times [2023-12-21 08:40:22,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:22,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139596666] [2023-12-21 08:40:22,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:22,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:40:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 08:40:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 08:40:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 08:40:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 08:40:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,554 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-21 08:40:23,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:23,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139596666] [2023-12-21 08:40:23,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139596666] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:23,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622688572] [2023-12-21 08:40:23,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:23,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:23,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:23,557 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 08:40:23,565 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 08:40:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:23,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:40:23,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 08:40:23,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:23,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622688572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:23,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:23,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-12-21 08:40:23,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022478837] [2023-12-21 08:40:23,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:23,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 08:40:23,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:23,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 08:40:23,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:40:23,877 INFO L87 Difference]: Start difference. First operand 996 states and 1603 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 08:40:24,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:24,061 INFO L93 Difference]: Finished difference Result 2836 states and 4681 transitions. [2023-12-21 08:40:24,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 08:40:24,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 114 [2023-12-21 08:40:24,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:24,070 INFO L225 Difference]: With dead ends: 2836 [2023-12-21 08:40:24,070 INFO L226 Difference]: Without dead ends: 1911 [2023-12-21 08:40:24,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:40:24,075 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 849 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:24,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 1664 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:40:24,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2023-12-21 08:40:24,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1899. [2023-12-21 08:40:24,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1899 states, 1484 states have (on average 1.6273584905660377) internal successors, (2415), 1533 states have internal predecessors, (2415), 327 states have call successors, (327), 89 states have call predecessors, (327), 87 states have return successors, (366), 306 states have call predecessors, (366), 323 states have call successors, (366) [2023-12-21 08:40:24,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 3108 transitions. [2023-12-21 08:40:24,252 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 3108 transitions. Word has length 114 [2023-12-21 08:40:24,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:24,252 INFO L495 AbstractCegarLoop]: Abstraction has 1899 states and 3108 transitions. [2023-12-21 08:40:24,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 08:40:24,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 3108 transitions. [2023-12-21 08:40:24,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 08:40:24,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:24,260 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 08:40:24,270 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 08:40:24,467 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 08:40:24,468 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:24,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:24,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1515809687, now seen corresponding path program 1 times [2023-12-21 08:40:24,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:24,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134578489] [2023-12-21 08:40:24,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:24,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:24,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:40:24,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:24,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 08:40:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:24,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 08:40:25,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 08:40:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 08:40:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,003 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-21 08:40:25,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:25,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134578489] [2023-12-21 08:40:25,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134578489] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:25,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578136745] [2023-12-21 08:40:25,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:25,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:25,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:25,013 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 08:40:25,040 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 08:40:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:25,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 08:40:25,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:25,397 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:40:25,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:25,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578136745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:25,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:25,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2023-12-21 08:40:25,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415554284] [2023-12-21 08:40:25,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:25,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:25,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:25,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:25,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:40:25,399 INFO L87 Difference]: Start difference. First operand 1899 states and 3108 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 08:40:25,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:25,984 INFO L93 Difference]: Finished difference Result 4876 states and 7996 transitions. [2023-12-21 08:40:25,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:40:25,985 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 114 [2023-12-21 08:40:25,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:25,998 INFO L225 Difference]: With dead ends: 4876 [2023-12-21 08:40:25,998 INFO L226 Difference]: Without dead ends: 3047 [2023-12-21 08:40:26,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-21 08:40:26,007 INFO L413 NwaCegarLoop]: 1122 mSDtfsCounter, 833 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 4389 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:26,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 4389 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:40:26,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3047 states. [2023-12-21 08:40:26,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3047 to 3041. [2023-12-21 08:40:26,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3041 states, 2360 states have (on average 1.5885593220338983) internal successors, (3749), 2413 states have internal predecessors, (3749), 525 states have call successors, (525), 151 states have call predecessors, (525), 155 states have return successors, (656), 508 states have call predecessors, (656), 517 states have call successors, (656) [2023-12-21 08:40:26,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4930 transitions. [2023-12-21 08:40:26,266 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4930 transitions. Word has length 114 [2023-12-21 08:40:26,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:26,266 INFO L495 AbstractCegarLoop]: Abstraction has 3041 states and 4930 transitions. [2023-12-21 08:40:26,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-21 08:40:26,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4930 transitions. [2023-12-21 08:40:26,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 08:40:26,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:26,270 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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 08:40:26,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 08:40:26,477 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 08:40:26,477 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:26,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:26,477 INFO L85 PathProgramCache]: Analyzing trace with hash 962676370, now seen corresponding path program 1 times [2023-12-21 08:40:26,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:26,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752185064] [2023-12-21 08:40:26,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:26,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:26,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:27,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 08:40:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:27,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:27,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:27,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 08:40:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:27,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 08:40:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:27,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:40:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:27,046 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 08:40:27,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:27,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752185064] [2023-12-21 08:40:27,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752185064] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:27,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31278582] [2023-12-21 08:40:27,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:27,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:27,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:27,047 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 08:40:27,088 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 08:40:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:27,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 1427 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:40:27,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:27,395 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 08:40:27,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:27,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31278582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:27,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:27,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15] total 18 [2023-12-21 08:40:27,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400907772] [2023-12-21 08:40:27,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:27,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:27,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:27,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:27,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:40:27,396 INFO L87 Difference]: Start difference. First operand 3041 states and 4930 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 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 08:40:28,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:28,031 INFO L93 Difference]: Finished difference Result 6076 states and 10193 transitions. [2023-12-21 08:40:28,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:40:28,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 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 115 [2023-12-21 08:40:28,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:28,043 INFO L225 Difference]: With dead ends: 6076 [2023-12-21 08:40:28,043 INFO L226 Difference]: Without dead ends: 3105 [2023-12-21 08:40:28,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:40:28,056 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 792 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:28,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2054 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:40:28,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3105 states. [2023-12-21 08:40:28,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3105 to 3105. [2023-12-21 08:40:28,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 2416 states have (on average 1.591473509933775) internal successors, (3845), 2469 states have internal predecessors, (3845), 525 states have call successors, (525), 159 states have call predecessors, (525), 163 states have return successors, (664), 508 states have call predecessors, (664), 517 states have call successors, (664) [2023-12-21 08:40:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 5034 transitions. [2023-12-21 08:40:28,323 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 5034 transitions. Word has length 115 [2023-12-21 08:40:28,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:28,323 INFO L495 AbstractCegarLoop]: Abstraction has 3105 states and 5034 transitions. [2023-12-21 08:40:28,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 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 08:40:28,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 5034 transitions. [2023-12-21 08:40:28,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 08:40:28,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:28,326 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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 08:40:28,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 08:40:28,533 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 08:40:28,533 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:28,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:28,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1781759670, now seen corresponding path program 1 times [2023-12-21 08:40:28,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:28,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063222968] [2023-12-21 08:40:28,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:28,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 08:40:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 08:40:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:29,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:29,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 08:40:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:29,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:40:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:29,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:40:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:29,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 08:40:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:29,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:40:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:29,018 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 08:40:29,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:29,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063222968] [2023-12-21 08:40:29,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063222968] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:29,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004115887] [2023-12-21 08:40:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:29,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:29,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:29,032 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 08:40:29,043 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 08:40:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:29,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:40:29,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:29,372 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-21 08:40:29,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:29,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004115887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:29,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:29,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-21 08:40:29,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770753375] [2023-12-21 08:40:29,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:29,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:29,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:29,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:29,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:40:29,374 INFO L87 Difference]: Start difference. First operand 3105 states and 5034 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, (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 08:40:29,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:29,971 INFO L93 Difference]: Finished difference Result 6204 states and 10377 transitions. [2023-12-21 08:40:29,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:40:29,972 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, (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 118 [2023-12-21 08:40:29,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:29,984 INFO L225 Difference]: With dead ends: 6204 [2023-12-21 08:40:29,985 INFO L226 Difference]: Without dead ends: 3169 [2023-12-21 08:40:29,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:40:29,996 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 802 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:29,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 2054 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:40:29,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2023-12-21 08:40:30,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 3169. [2023-12-21 08:40:30,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3169 states, 2472 states have (on average 1.5942556634304208) internal successors, (3941), 2525 states have internal predecessors, (3941), 525 states have call successors, (525), 167 states have call predecessors, (525), 171 states have return successors, (672), 508 states have call predecessors, (672), 517 states have call successors, (672) [2023-12-21 08:40:30,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 5138 transitions. [2023-12-21 08:40:30,269 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 5138 transitions. Word has length 118 [2023-12-21 08:40:30,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:30,269 INFO L495 AbstractCegarLoop]: Abstraction has 3169 states and 5138 transitions. [2023-12-21 08:40:30,269 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, (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 08:40:30,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 5138 transitions. [2023-12-21 08:40:30,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 08:40:30,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:30,272 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 08:40:30,278 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 08:40:30,478 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 08:40:30,478 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:30,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:30,479 INFO L85 PathProgramCache]: Analyzing trace with hash -950218226, now seen corresponding path program 1 times [2023-12-21 08:40:30,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:30,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943896346] [2023-12-21 08:40:30,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:30,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 08:40:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-21 08:40:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 08:40:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:40:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 08:40:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:40:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:30,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 08:40:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 08:40:31,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:31,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943896346] [2023-12-21 08:40:31,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943896346] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:31,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484775695] [2023-12-21 08:40:31,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:31,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:31,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:31,001 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 08:40:31,020 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 08:40:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:31,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:40:31,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:31,350 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 08:40:31,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:31,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484775695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:31,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:31,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-21 08:40:31,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686967538] [2023-12-21 08:40:31,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:31,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:31,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:31,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:31,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:40:31,352 INFO L87 Difference]: Start difference. First operand 3169 states and 5138 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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 08:40:31,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:31,978 INFO L93 Difference]: Finished difference Result 6332 states and 10561 transitions. [2023-12-21 08:40:31,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:40:31,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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 121 [2023-12-21 08:40:31,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:31,990 INFO L225 Difference]: With dead ends: 6332 [2023-12-21 08:40:31,990 INFO L226 Difference]: Without dead ends: 3233 [2023-12-21 08:40:31,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:40:32,000 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 799 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:32,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 2054 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:40:32,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2023-12-21 08:40:32,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 3233. [2023-12-21 08:40:32,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 2528 states have (on average 1.5969145569620253) internal successors, (4037), 2581 states have internal predecessors, (4037), 525 states have call successors, (525), 175 states have call predecessors, (525), 179 states have return successors, (680), 508 states have call predecessors, (680), 517 states have call successors, (680) [2023-12-21 08:40:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 5242 transitions. [2023-12-21 08:40:32,288 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 5242 transitions. Word has length 121 [2023-12-21 08:40:32,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:32,289 INFO L495 AbstractCegarLoop]: Abstraction has 3233 states and 5242 transitions. [2023-12-21 08:40:32,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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 08:40:32,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 5242 transitions. [2023-12-21 08:40:32,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-21 08:40:32,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:32,291 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 08:40:32,300 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 08:40:32,498 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 08:40:32,498 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:32,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:32,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1699596842, now seen corresponding path program 1 times [2023-12-21 08:40:32,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:32,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488213358] [2023-12-21 08:40:32,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:32,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 08:40:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 08:40:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 08:40:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:40:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:40:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 08:40:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:40:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-21 08:40:32,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:32,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488213358] [2023-12-21 08:40:32,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488213358] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:32,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729099738] [2023-12-21 08:40:32,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:32,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:32,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:32,988 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 08:40:33,004 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 08:40:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:33,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:40:33,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 08:40:33,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:33,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729099738] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:33,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:33,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-12-21 08:40:33,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159003035] [2023-12-21 08:40:33,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:33,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:40:33,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:33,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:40:33,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:40:33,338 INFO L87 Difference]: Start difference. First operand 3233 states and 5242 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 08:40:33,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:33,924 INFO L93 Difference]: Finished difference Result 6460 states and 10745 transitions. [2023-12-21 08:40:33,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:40:33,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 124 [2023-12-21 08:40:33,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:33,944 INFO L225 Difference]: With dead ends: 6460 [2023-12-21 08:40:33,944 INFO L226 Difference]: Without dead ends: 3297 [2023-12-21 08:40:33,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:40:33,970 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 781 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:33,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 2054 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:40:33,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2023-12-21 08:40:34,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 3297. [2023-12-21 08:40:34,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3297 states, 2584 states have (on average 1.5994582043343653) internal successors, (4133), 2637 states have internal predecessors, (4133), 525 states have call successors, (525), 183 states have call predecessors, (525), 187 states have return successors, (688), 508 states have call predecessors, (688), 517 states have call successors, (688) [2023-12-21 08:40:34,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 5346 transitions. [2023-12-21 08:40:34,270 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 5346 transitions. Word has length 124 [2023-12-21 08:40:34,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:34,270 INFO L495 AbstractCegarLoop]: Abstraction has 3297 states and 5346 transitions. [2023-12-21 08:40:34,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 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 08:40:34,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 5346 transitions. [2023-12-21 08:40:34,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-21 08:40:34,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:34,273 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 08:40:34,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 08:40:34,479 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 08:40:34,480 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:34,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:34,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1062613110, now seen corresponding path program 1 times [2023-12-21 08:40:34,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:34,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452200565] [2023-12-21 08:40:34,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:34,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:34,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:34,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:34,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:34,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:34,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:40:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:40:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:40:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 08:40:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:40:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,082 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 08:40:35,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:35,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452200565] [2023-12-21 08:40:35,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452200565] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:35,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495833170] [2023-12-21 08:40:35,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:35,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:35,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:35,084 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 08:40:35,086 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 08:40:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:35,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 08:40:35,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:35,433 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 08:40:35,434 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:35,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495833170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:35,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:35,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2023-12-21 08:40:35,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996151325] [2023-12-21 08:40:35,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:35,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:35,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:35,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:35,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:40:35,435 INFO L87 Difference]: Start difference. First operand 3297 states and 5346 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-21 08:40:37,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:37,194 INFO L93 Difference]: Finished difference Result 6656 states and 10855 transitions. [2023-12-21 08:40:37,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:40:37,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 127 [2023-12-21 08:40:37,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:37,209 INFO L225 Difference]: With dead ends: 6656 [2023-12-21 08:40:37,209 INFO L226 Difference]: Without dead ends: 3434 [2023-12-21 08:40:37,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:40:37,217 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 1735 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 2711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:37,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 902 Invalid, 2711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 08:40:37,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2023-12-21 08:40:37,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3188. [2023-12-21 08:40:37,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3188 states, 2402 states have (on average 1.5682764363030808) internal successors, (3767), 2493 states have internal predecessors, (3767), 606 states have call successors, (606), 169 states have call predecessors, (606), 179 states have return successors, (746), 577 states have call predecessors, (746), 598 states have call successors, (746) [2023-12-21 08:40:37,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 5119 transitions. [2023-12-21 08:40:37,491 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 5119 transitions. Word has length 127 [2023-12-21 08:40:37,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:37,492 INFO L495 AbstractCegarLoop]: Abstraction has 3188 states and 5119 transitions. [2023-12-21 08:40:37,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2023-12-21 08:40:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 5119 transitions. [2023-12-21 08:40:37,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-21 08:40:37,494 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:37,494 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 08:40:37,503 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 08:40:37,701 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 08:40:37,701 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:37,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:37,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1741885364, now seen corresponding path program 1 times [2023-12-21 08:40:37,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:37,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536592068] [2023-12-21 08:40:37,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:37,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:37,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:40:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:40:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:40:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 08:40:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:40:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 08:40:38,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:38,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536592068] [2023-12-21 08:40:38,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536592068] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:38,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386343250] [2023-12-21 08:40:38,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:38,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:38,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:38,274 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 08:40:38,298 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 08:40:38,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:38,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 08:40:38,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:38,603 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:40:38,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:38,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386343250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:38,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:38,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2023-12-21 08:40:38,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958066853] [2023-12-21 08:40:38,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:38,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 08:40:38,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:38,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 08:40:38,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:40:38,605 INFO L87 Difference]: Start difference. First operand 3188 states and 5119 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-21 08:40:41,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:41,360 INFO L93 Difference]: Finished difference Result 8396 states and 13809 transitions. [2023-12-21 08:40:41,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 08:40:41,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 127 [2023-12-21 08:40:41,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:41,393 INFO L225 Difference]: With dead ends: 8396 [2023-12-21 08:40:41,394 INFO L226 Difference]: Without dead ends: 5280 [2023-12-21 08:40:41,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2023-12-21 08:40:41,425 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 2640 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5981 mSolverCounterSat, 661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2738 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 6642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 661 IncrementalHoareTripleChecker+Valid, 5981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:41,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2738 Valid, 2102 Invalid, 6642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [661 Valid, 5981 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 08:40:41,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2023-12-21 08:40:41,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 4900. [2023-12-21 08:40:41,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4900 states, 3645 states have (on average 1.570096021947874) internal successors, (5723), 3799 states have internal predecessors, (5723), 962 states have call successors, (962), 243 states have call predecessors, (962), 292 states have return successors, (1306), 934 states have call predecessors, (1306), 954 states have call successors, (1306) [2023-12-21 08:40:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4900 states to 4900 states and 7991 transitions. [2023-12-21 08:40:41,913 INFO L78 Accepts]: Start accepts. Automaton has 4900 states and 7991 transitions. Word has length 127 [2023-12-21 08:40:41,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:41,913 INFO L495 AbstractCegarLoop]: Abstraction has 4900 states and 7991 transitions. [2023-12-21 08:40:41,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-21 08:40:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4900 states and 7991 transitions. [2023-12-21 08:40:41,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 08:40:41,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:41,916 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:41,937 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 08:40:42,122 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 08:40:42,123 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:42,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:42,123 INFO L85 PathProgramCache]: Analyzing trace with hash 344691701, now seen corresponding path program 1 times [2023-12-21 08:40:42,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:42,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135398019] [2023-12-21 08:40:42,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:42,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:40:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:42,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:40:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 08:40:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:40:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 08:40:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-21 08:40:42,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:42,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135398019] [2023-12-21 08:40:42,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135398019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:42,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:40:42,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:40:42,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439542517] [2023-12-21 08:40:42,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:42,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:40:42,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:42,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:40:42,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:40:42,656 INFO L87 Difference]: Start difference. First operand 4900 states and 7991 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-21 08:40:56,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:56,302 INFO L93 Difference]: Finished difference Result 23168 states and 39633 transitions. [2023-12-21 08:40:56,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-21 08:40:56,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 131 [2023-12-21 08:40:56,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:56,375 INFO L225 Difference]: With dead ends: 23168 [2023-12-21 08:40:56,375 INFO L226 Difference]: Without dead ends: 18344 [2023-12-21 08:40:56,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=251, Invalid=619, Unknown=0, NotChecked=0, Total=870 [2023-12-21 08:40:56,395 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 6726 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 4865 mSolverCounterSat, 2719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6786 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 7584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2719 IncrementalHoareTripleChecker+Valid, 4865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:56,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6786 Valid, 1656 Invalid, 7584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2719 Valid, 4865 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-12-21 08:40:56,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18344 states. [2023-12-21 08:40:57,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18344 to 4954. [2023-12-21 08:40:57,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4954 states, 3681 states have (on average 1.567508829122521) internal successors, (5770), 3833 states have internal predecessors, (5770), 977 states have call successors, (977), 243 states have call predecessors, (977), 295 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-21 08:40:57,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 4954 states and 8057 transitions. [2023-12-21 08:40:57,446 INFO L78 Accepts]: Start accepts. Automaton has 4954 states and 8057 transitions. Word has length 131 [2023-12-21 08:40:57,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:40:57,448 INFO L495 AbstractCegarLoop]: Abstraction has 4954 states and 8057 transitions. [2023-12-21 08:40:57,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-21 08:40:57,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4954 states and 8057 transitions. [2023-12-21 08:40:57,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 08:40:57,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:40:57,451 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:40:57,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 08:40:57,451 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:40:57,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:40:57,451 INFO L85 PathProgramCache]: Analyzing trace with hash 272305143, now seen corresponding path program 1 times [2023-12-21 08:40:57,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:40:57,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301555669] [2023-12-21 08:40:57,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:57,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:40:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:57,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:57,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:40:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:57,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:40:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:57,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:40:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:57,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:40:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:40:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:40:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:40:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 08:40:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:40:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 08:40:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 08:40:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,039 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 08:40:58,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:40:58,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301555669] [2023-12-21 08:40:58,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301555669] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:40:58,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206386491] [2023-12-21 08:40:58,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:40:58,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:40:58,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:40:58,062 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 08:40:58,062 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 08:40:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:40:58,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-21 08:40:58,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:40:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:40:58,427 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:40:58,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206386491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:40:58,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:40:58,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2023-12-21 08:40:58,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235234251] [2023-12-21 08:40:58,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:40:58,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:40:58,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:40:58,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:40:58,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:40:58,428 INFO L87 Difference]: Start difference. First operand 4954 states and 8057 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 08:40:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:40:59,396 INFO L93 Difference]: Finished difference Result 4998 states and 8100 transitions. [2023-12-21 08:40:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:40:59,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2023-12-21 08:40:59,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:40:59,412 INFO L225 Difference]: With dead ends: 4998 [2023-12-21 08:40:59,412 INFO L226 Difference]: Without dead ends: 4996 [2023-12-21 08:40:59,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:40:59,414 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 348 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 3671 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:40:59,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 3671 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:40:59,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4996 states. [2023-12-21 08:41:00,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4996 to 4954. [2023-12-21 08:41:00,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4954 states, 3681 states have (on average 1.5601738657973376) internal successors, (5743), 3833 states have internal predecessors, (5743), 977 states have call successors, (977), 243 states have call predecessors, (977), 295 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-21 08:41:00,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 4954 states and 8030 transitions. [2023-12-21 08:41:00,195 INFO L78 Accepts]: Start accepts. Automaton has 4954 states and 8030 transitions. Word has length 131 [2023-12-21 08:41:00,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:00,195 INFO L495 AbstractCegarLoop]: Abstraction has 4954 states and 8030 transitions. [2023-12-21 08:41:00,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 08:41:00,195 INFO L276 IsEmpty]: Start isEmpty. Operand 4954 states and 8030 transitions. [2023-12-21 08:41:00,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-21 08:41:00,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:00,199 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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 08:41:00,208 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 08:41:00,405 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,SelfDestructingSolverStorable26 [2023-12-21 08:41:00,405 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:00,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:00,406 INFO L85 PathProgramCache]: Analyzing trace with hash 2034462549, now seen corresponding path program 1 times [2023-12-21 08:41:00,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:00,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134999634] [2023-12-21 08:41:00,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:00,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:00,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 08:41:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:41:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:41:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 08:41:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 08:41:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:41:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-21 08:41:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-21 08:41:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-21 08:41:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:00,919 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-21 08:41:00,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:00,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134999634] [2023-12-21 08:41:00,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134999634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:00,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:41:00,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 08:41:00,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035945654] [2023-12-21 08:41:00,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:00,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 08:41:00,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:00,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 08:41:00,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:41:00,920 INFO L87 Difference]: Start difference. First operand 4954 states and 8030 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-21 08:41:12,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:12,291 INFO L93 Difference]: Finished difference Result 20016 states and 34463 transitions. [2023-12-21 08:41:12,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 08:41:12,291 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 157 [2023-12-21 08:41:12,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:12,343 INFO L225 Difference]: With dead ends: 20016 [2023-12-21 08:41:12,343 INFO L226 Difference]: Without dead ends: 15134 [2023-12-21 08:41:12,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=186, Invalid=366, Unknown=0, NotChecked=0, Total=552 [2023-12-21 08:41:12,359 INFO L413 NwaCegarLoop]: 370 mSDtfsCounter, 3697 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 3822 mSolverCounterSat, 1346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3873 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 5168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1346 IncrementalHoareTripleChecker+Valid, 3822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:12,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3873 Valid, 1654 Invalid, 5168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1346 Valid, 3822 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-12-21 08:41:12,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15134 states. [2023-12-21 08:41:13,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15134 to 4978. [2023-12-21 08:41:13,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4978 states, 3705 states have (on average 1.5565452091767882) internal successors, (5767), 3857 states have internal predecessors, (5767), 977 states have call successors, (977), 243 states have call predecessors, (977), 295 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-21 08:41:13,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4978 states to 4978 states and 8054 transitions. [2023-12-21 08:41:13,455 INFO L78 Accepts]: Start accepts. Automaton has 4978 states and 8054 transitions. Word has length 157 [2023-12-21 08:41:13,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:13,455 INFO L495 AbstractCegarLoop]: Abstraction has 4978 states and 8054 transitions. [2023-12-21 08:41:13,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-21 08:41:13,456 INFO L276 IsEmpty]: Start isEmpty. Operand 4978 states and 8054 transitions. [2023-12-21 08:41:13,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-21 08:41:13,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:13,459 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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] [2023-12-21 08:41:13,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 08:41:13,460 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:13,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:13,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1550481297, now seen corresponding path program 1 times [2023-12-21 08:41:13,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:13,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258140026] [2023-12-21 08:41:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:13,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 08:41:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 08:41:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 08:41:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:13,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:41:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 08:41:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-21 08:41:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-21 08:41:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 08:41:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,006 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2023-12-21 08:41:14,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:14,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258140026] [2023-12-21 08:41:14,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258140026] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:14,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739934497] [2023-12-21 08:41:14,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:14,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:14,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:14,008 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 08:41:14,010 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 08:41:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:14,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:14,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 08:41:14,314 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:14,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739934497] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:14,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:14,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-21 08:41:14,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171373680] [2023-12-21 08:41:14,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:14,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:14,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:14,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:14,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:41:14,315 INFO L87 Difference]: Start difference. First operand 4978 states and 8054 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:15,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:15,347 INFO L93 Difference]: Finished difference Result 10118 states and 16584 transitions. [2023-12-21 08:41:15,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:15,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 164 [2023-12-21 08:41:15,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:15,392 INFO L225 Difference]: With dead ends: 10118 [2023-12-21 08:41:15,392 INFO L226 Difference]: Without dead ends: 5212 [2023-12-21 08:41:15,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:41:15,401 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 213 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2274 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 08:41:15,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2274 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:15,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2023-12-21 08:41:16,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 5212. [2023-12-21 08:41:16,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5212 states, 3933 states have (on average 1.57767607424358) internal successors, (6205), 4085 states have internal predecessors, (6205), 977 states have call successors, (977), 249 states have call predecessors, (977), 301 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-21 08:41:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 5212 states and 8492 transitions. [2023-12-21 08:41:16,323 INFO L78 Accepts]: Start accepts. Automaton has 5212 states and 8492 transitions. Word has length 164 [2023-12-21 08:41:16,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:16,324 INFO L495 AbstractCegarLoop]: Abstraction has 5212 states and 8492 transitions. [2023-12-21 08:41:16,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:16,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states and 8492 transitions. [2023-12-21 08:41:16,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-21 08:41:16,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:16,328 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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] [2023-12-21 08:41:16,348 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 08:41:16,534 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,SelfDestructingSolverStorable28 [2023-12-21 08:41:16,534 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:16,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:16,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1657326437, now seen corresponding path program 1 times [2023-12-21 08:41:16,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:16,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974603028] [2023-12-21 08:41:16,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:16,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:16,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:16,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:16,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:16,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:16,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:17,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 08:41:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:41:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:41:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:41:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-21 08:41:17,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 08:41:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 08:41:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-12-21 08:41:17,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:17,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974603028] [2023-12-21 08:41:17,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974603028] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:17,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666190476] [2023-12-21 08:41:17,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:17,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:17,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:17,079 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 08:41:17,095 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 08:41:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:17,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 1577 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:17,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:17,387 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-21 08:41:17,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:17,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666190476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:17,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:17,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-21 08:41:17,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133175970] [2023-12-21 08:41:17,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:17,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:17,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:17,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:17,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:41:17,389 INFO L87 Difference]: Start difference. First operand 5212 states and 8492 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:18,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:18,428 INFO L93 Difference]: Finished difference Result 10586 states and 17448 transitions. [2023-12-21 08:41:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:18,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2023-12-21 08:41:18,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:18,448 INFO L225 Difference]: With dead ends: 10586 [2023-12-21 08:41:18,448 INFO L226 Difference]: Without dead ends: 5446 [2023-12-21 08:41:18,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:41:18,463 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 211 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2274 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 08:41:18,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2274 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:18,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5446 states. [2023-12-21 08:41:19,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5446 to 5446. [2023-12-21 08:41:19,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5446 states, 4161 states have (on average 1.5964912280701755) internal successors, (6643), 4313 states have internal predecessors, (6643), 977 states have call successors, (977), 255 states have call predecessors, (977), 307 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-21 08:41:19,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5446 states to 5446 states and 8930 transitions. [2023-12-21 08:41:19,459 INFO L78 Accepts]: Start accepts. Automaton has 5446 states and 8930 transitions. Word has length 169 [2023-12-21 08:41:19,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:19,460 INFO L495 AbstractCegarLoop]: Abstraction has 5446 states and 8930 transitions. [2023-12-21 08:41:19,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:19,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5446 states and 8930 transitions. [2023-12-21 08:41:19,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-12-21 08:41:19,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:19,465 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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 08:41:19,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-21 08:41:19,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:19,673 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:19,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:19,674 INFO L85 PathProgramCache]: Analyzing trace with hash 173723413, now seen corresponding path program 1 times [2023-12-21 08:41:19,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:19,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983779766] [2023-12-21 08:41:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:19,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:19,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 08:41:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 08:41:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 08:41:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-21 08:41:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-21 08:41:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-21 08:41:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-12-21 08:41:20,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:20,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983779766] [2023-12-21 08:41:20,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983779766] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:20,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652788475] [2023-12-21 08:41:20,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:20,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:20,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:20,298 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 08:41:20,348 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 08:41:20,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:20,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:20,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:20,633 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:41:20,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:20,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652788475] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:20,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:20,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-21 08:41:20,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876817949] [2023-12-21 08:41:20,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:20,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:20,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:20,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:20,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:41:20,634 INFO L87 Difference]: Start difference. First operand 5446 states and 8930 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:21,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:21,693 INFO L93 Difference]: Finished difference Result 11054 states and 18312 transitions. [2023-12-21 08:41:21,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:21,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 173 [2023-12-21 08:41:21,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:21,713 INFO L225 Difference]: With dead ends: 11054 [2023-12-21 08:41:21,713 INFO L226 Difference]: Without dead ends: 5680 [2023-12-21 08:41:21,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:41:21,728 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 209 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2274 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 08:41:21,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2274 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:21,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5680 states. [2023-12-21 08:41:22,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5680 to 5680. [2023-12-21 08:41:22,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5680 states, 4389 states have (on average 1.6133515607199818) internal successors, (7081), 4541 states have internal predecessors, (7081), 977 states have call successors, (977), 261 states have call predecessors, (977), 313 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-21 08:41:22,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5680 states to 5680 states and 9368 transitions. [2023-12-21 08:41:22,758 INFO L78 Accepts]: Start accepts. Automaton has 5680 states and 9368 transitions. Word has length 173 [2023-12-21 08:41:22,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:22,758 INFO L495 AbstractCegarLoop]: Abstraction has 5680 states and 9368 transitions. [2023-12-21 08:41:22,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5680 states and 9368 transitions. [2023-12-21 08:41:22,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-12-21 08:41:22,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:22,763 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:22,769 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 08:41:22,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:22,969 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:22,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:22,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1178154609, now seen corresponding path program 1 times [2023-12-21 08:41:22,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:22,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640692495] [2023-12-21 08:41:22,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:22,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:41:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 08:41:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 08:41:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 08:41:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-21 08:41:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 08:41:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-12-21 08:41:23,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:23,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640692495] [2023-12-21 08:41:23,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640692495] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:23,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135229271] [2023-12-21 08:41:23,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:23,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:23,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:23,568 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 08:41:23,569 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 08:41:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:23,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:23,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-21 08:41:23,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:23,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135229271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:23,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:23,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-12-21 08:41:23,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415269785] [2023-12-21 08:41:23,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:23,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:23,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:23,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:23,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:41:23,865 INFO L87 Difference]: Start difference. First operand 5680 states and 9368 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:24,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:24,929 INFO L93 Difference]: Finished difference Result 11522 states and 19176 transitions. [2023-12-21 08:41:24,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:41:24,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 176 [2023-12-21 08:41:24,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:24,950 INFO L225 Difference]: With dead ends: 11522 [2023-12-21 08:41:24,950 INFO L226 Difference]: Without dead ends: 5914 [2023-12-21 08:41:24,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:41:24,967 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 207 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2274 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 08:41:24,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2274 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:24,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5914 states. [2023-12-21 08:41:25,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5914 to 5914. [2023-12-21 08:41:25,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5914 states, 4617 states have (on average 1.628546675330301) internal successors, (7519), 4769 states have internal predecessors, (7519), 977 states have call successors, (977), 267 states have call predecessors, (977), 319 states have return successors, (1310), 949 states have call predecessors, (1310), 969 states have call successors, (1310) [2023-12-21 08:41:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5914 states to 5914 states and 9806 transitions. [2023-12-21 08:41:25,922 INFO L78 Accepts]: Start accepts. Automaton has 5914 states and 9806 transitions. Word has length 176 [2023-12-21 08:41:25,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:25,922 INFO L495 AbstractCegarLoop]: Abstraction has 5914 states and 9806 transitions. [2023-12-21 08:41:25,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-21 08:41:25,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5914 states and 9806 transitions. [2023-12-21 08:41:25,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-21 08:41:25,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:25,928 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:25,937 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 08:41:26,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-12-21 08:41:26,135 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:26,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:26,135 INFO L85 PathProgramCache]: Analyzing trace with hash 385685727, now seen corresponding path program 1 times [2023-12-21 08:41:26,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:26,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706790672] [2023-12-21 08:41:26,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:26,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:41:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:41:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:41:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 08:41:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-21 08:41:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 08:41:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:26,737 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-21 08:41:26,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:26,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706790672] [2023-12-21 08:41:26,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706790672] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:26,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910961768] [2023-12-21 08:41:26,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:26,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:26,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:26,739 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 08:41:26,772 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 08:41:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:27,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 1580 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-21 08:41:27,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:27,199 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-12-21 08:41:27,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:27,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910961768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:27,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:27,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2023-12-21 08:41:27,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849812321] [2023-12-21 08:41:27,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:27,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:41:27,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:27,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:41:27,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:41:27,202 INFO L87 Difference]: Start difference. First operand 5914 states and 9806 transitions. Second operand has 9 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 08:41:31,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:31,357 INFO L93 Difference]: Finished difference Result 18444 states and 31165 transitions. [2023-12-21 08:41:31,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 08:41:31,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) Word has length 178 [2023-12-21 08:41:31,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:31,400 INFO L225 Difference]: With dead ends: 18444 [2023-12-21 08:41:31,401 INFO L226 Difference]: Without dead ends: 9818 [2023-12-21 08:41:31,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2023-12-21 08:41:31,426 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 1914 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 3953 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2012 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 4412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 3953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:31,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2012 Valid, 2406 Invalid, 4412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 3953 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 08:41:31,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9818 states. [2023-12-21 08:41:33,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9818 to 9604. [2023-12-21 08:41:33,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9604 states, 7387 states have (on average 1.6262352781914173) internal successors, (12013), 7694 states have internal predecessors, (12013), 1652 states have call successors, (1652), 425 states have call predecessors, (1652), 564 states have return successors, (2292), 1624 states have call predecessors, (2292), 1644 states have call successors, (2292) [2023-12-21 08:41:33,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9604 states to 9604 states and 15957 transitions. [2023-12-21 08:41:33,141 INFO L78 Accepts]: Start accepts. Automaton has 9604 states and 15957 transitions. Word has length 178 [2023-12-21 08:41:33,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:33,141 INFO L495 AbstractCegarLoop]: Abstraction has 9604 states and 15957 transitions. [2023-12-21 08:41:33,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (21), 4 states have call predecessors, (21), 6 states have return successors, (20), 6 states have call predecessors, (20), 4 states have call successors, (20) [2023-12-21 08:41:33,141 INFO L276 IsEmpty]: Start isEmpty. Operand 9604 states and 15957 transitions. [2023-12-21 08:41:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-21 08:41:33,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:33,151 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:33,158 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 08:41:33,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:33,358 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:33,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:33,358 INFO L85 PathProgramCache]: Analyzing trace with hash 72455887, now seen corresponding path program 1 times [2023-12-21 08:41:33,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:33,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203677056] [2023-12-21 08:41:33,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:33,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:41:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:41:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:41:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:41:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-21 08:41:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-12-21 08:41:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-12-21 08:41:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:33,749 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-12-21 08:41:33,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:33,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203677056] [2023-12-21 08:41:33,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203677056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:33,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:41:33,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 08:41:33,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621802504] [2023-12-21 08:41:33,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:33,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 08:41:33,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:33,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 08:41:33,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 08:41:33,751 INFO L87 Difference]: Start difference. First operand 9604 states and 15957 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 08:41:39,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:39,167 INFO L93 Difference]: Finished difference Result 21834 states and 37126 transitions. [2023-12-21 08:41:39,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 08:41:39,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 178 [2023-12-21 08:41:39,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:39,213 INFO L225 Difference]: With dead ends: 21834 [2023-12-21 08:41:39,213 INFO L226 Difference]: Without dead ends: 12174 [2023-12-21 08:41:39,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:41:39,235 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1483 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 2592 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 2952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 2592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:39,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 1150 Invalid, 2952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 2592 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-21 08:41:39,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12174 states. [2023-12-21 08:41:40,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12174 to 9626. [2023-12-21 08:41:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9626 states, 7409 states have (on average 1.618572007018491) internal successors, (11992), 7716 states have internal predecessors, (11992), 1652 states have call successors, (1652), 425 states have call predecessors, (1652), 564 states have return successors, (2292), 1624 states have call predecessors, (2292), 1644 states have call successors, (2292) [2023-12-21 08:41:41,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 15936 transitions. [2023-12-21 08:41:41,018 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 15936 transitions. Word has length 178 [2023-12-21 08:41:41,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:41,018 INFO L495 AbstractCegarLoop]: Abstraction has 9626 states and 15936 transitions. [2023-12-21 08:41:41,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-21 08:41:41,019 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 15936 transitions. [2023-12-21 08:41:41,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-21 08:41:41,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:41,029 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:41,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 08:41:41,029 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:41,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:41,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1612959899, now seen corresponding path program 1 times [2023-12-21 08:41:41,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:41,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236701739] [2023-12-21 08:41:41,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:41,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:41:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:41:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:41:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:41:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-21 08:41:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-12-21 08:41:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-12-21 08:41:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-12-21 08:41:41,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:41,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236701739] [2023-12-21 08:41:41,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236701739] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:41,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:41:41,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 08:41:41,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844400169] [2023-12-21 08:41:41,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:41,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 08:41:41,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:41,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 08:41:41,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:41:41,509 INFO L87 Difference]: Start difference. First operand 9626 states and 15936 transitions. Second operand has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 08:41:47,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:47,818 INFO L93 Difference]: Finished difference Result 21190 states and 36145 transitions. [2023-12-21 08:41:47,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 08:41:47,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 184 [2023-12-21 08:41:47,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:47,856 INFO L225 Difference]: With dead ends: 21190 [2023-12-21 08:41:47,856 INFO L226 Difference]: Without dead ends: 11274 [2023-12-21 08:41:47,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:41:47,876 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 1329 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 4666 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1453 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 5002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 4666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:47,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1453 Valid, 2082 Invalid, 5002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 4666 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-21 08:41:47,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11274 states. [2023-12-21 08:41:49,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11274 to 8848. [2023-12-21 08:41:49,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8848 states, 6866 states have (on average 1.6459364986891931) internal successors, (11301), 7148 states have internal predecessors, (11301), 1467 states have call successors, (1467), 401 states have call predecessors, (1467), 514 states have return successors, (1936), 1418 states have call predecessors, (1936), 1459 states have call successors, (1936) [2023-12-21 08:41:49,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8848 states to 8848 states and 14704 transitions. [2023-12-21 08:41:49,464 INFO L78 Accepts]: Start accepts. Automaton has 8848 states and 14704 transitions. Word has length 184 [2023-12-21 08:41:49,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:49,464 INFO L495 AbstractCegarLoop]: Abstraction has 8848 states and 14704 transitions. [2023-12-21 08:41:49,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 6 states have internal predecessors, (109), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-21 08:41:49,465 INFO L276 IsEmpty]: Start isEmpty. Operand 8848 states and 14704 transitions. [2023-12-21 08:41:49,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2023-12-21 08:41:49,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:49,477 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 08:41:49,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 08:41:49,477 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:49,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:49,478 INFO L85 PathProgramCache]: Analyzing trace with hash 210928095, now seen corresponding path program 1 times [2023-12-21 08:41:49,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:49,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646106767] [2023-12-21 08:41:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:49,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:49,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:49,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:49,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:41:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:41:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:41:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:41:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:41:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 08:41:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:41:50,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:41:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:41:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:41:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-21 08:41:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:41:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:41:50,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:41:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:41:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 08:41:50,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 08:41:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 08:41:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:41:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:41:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 08:41:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2023-12-21 08:41:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2023-12-21 08:41:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2023-12-21 08:41:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2023-12-21 08:41:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2023-12-21 08:41:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 83 proven. 150 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2023-12-21 08:41:50,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:50,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646106767] [2023-12-21 08:41:50,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646106767] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:50,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147481308] [2023-12-21 08:41:50,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:50,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:50,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:50,586 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 08:41:50,587 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 08:41:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:51,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 4058 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 08:41:51,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:51,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2023-12-21 08:41:51,267 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:51,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147481308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:51,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:51,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [18] total 19 [2023-12-21 08:41:51,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458447488] [2023-12-21 08:41:51,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:51,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 08:41:51,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:51,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 08:41:51,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:41:51,270 INFO L87 Difference]: Start difference. First operand 8848 states and 14704 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-21 08:41:53,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:53,738 INFO L93 Difference]: Finished difference Result 18234 states and 30722 transitions. [2023-12-21 08:41:53,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 08:41:53,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 527 [2023-12-21 08:41:53,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:53,788 INFO L225 Difference]: With dead ends: 18234 [2023-12-21 08:41:53,788 INFO L226 Difference]: Without dead ends: 13541 [2023-12-21 08:41:53,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:41:53,803 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 836 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:53,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 1606 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:53,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13541 states. [2023-12-21 08:41:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13541 to 13539. [2023-12-21 08:41:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13539 states, 10447 states have (on average 1.6446826840241218) internal successors, (17182), 10904 states have internal predecessors, (17182), 2307 states have call successors, (2307), 610 states have call predecessors, (2307), 784 states have return successors, (3218), 2264 states have call predecessors, (3218), 2295 states have call successors, (3218) [2023-12-21 08:41:56,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13539 states to 13539 states and 22707 transitions. [2023-12-21 08:41:56,274 INFO L78 Accepts]: Start accepts. Automaton has 13539 states and 22707 transitions. Word has length 527 [2023-12-21 08:41:56,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:56,275 INFO L495 AbstractCegarLoop]: Abstraction has 13539 states and 22707 transitions. [2023-12-21 08:41:56,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-12-21 08:41:56,275 INFO L276 IsEmpty]: Start isEmpty. Operand 13539 states and 22707 transitions. [2023-12-21 08:41:56,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2023-12-21 08:41:56,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:56,286 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 08:41:56,294 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 08:41:56,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:56,495 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:56,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:56,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1926855370, now seen corresponding path program 1 times [2023-12-21 08:41:56,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:56,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857487056] [2023-12-21 08:41:56,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:56,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:56,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:56,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:41:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:41:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:41:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:41:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:41:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 08:41:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:41:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:41:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:41:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:41:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-21 08:41:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:41:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:41:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:41:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 08:41:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:41:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:41:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:41:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 08:41:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:41:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 08:41:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-21 08:41:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2023-12-21 08:41:57,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2023-12-21 08:41:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2023-12-21 08:41:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2023-12-21 08:41:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 522 [2023-12-21 08:41:57,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:57,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 83 proven. 150 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2023-12-21 08:41:57,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:57,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857487056] [2023-12-21 08:41:57,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857487056] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:57,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946844702] [2023-12-21 08:41:57,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:57,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:57,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:57,645 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 08:41:57,646 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 08:41:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:58,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 4059 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:41:58,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 653 proven. 0 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2023-12-21 08:41:58,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:58,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946844702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:58,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:58,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2023-12-21 08:41:58,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391794605] [2023-12-21 08:41:58,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:58,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:41:58,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:58,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:41:58,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:41:58,287 INFO L87 Difference]: Start difference. First operand 13539 states and 22707 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:42:00,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:00,878 INFO L93 Difference]: Finished difference Result 27147 states and 46061 transitions. [2023-12-21 08:42:00,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:42:00,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 528 [2023-12-21 08:42:00,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:00,919 INFO L225 Difference]: With dead ends: 27147 [2023-12-21 08:42:00,919 INFO L226 Difference]: Without dead ends: 13674 [2023-12-21 08:42:00,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:42:00,949 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 38 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:00,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2360 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:42:00,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13674 states. [2023-12-21 08:42:03,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13674 to 13674. [2023-12-21 08:42:03,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13674 states, 10567 states have (on average 1.6458786789060282) internal successors, (17392), 11024 states have internal predecessors, (17392), 2307 states have call successors, (2307), 625 states have call predecessors, (2307), 799 states have return successors, (3218), 2264 states have call predecessors, (3218), 2295 states have call successors, (3218) [2023-12-21 08:42:03,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13674 states to 13674 states and 22917 transitions. [2023-12-21 08:42:03,522 INFO L78 Accepts]: Start accepts. Automaton has 13674 states and 22917 transitions. Word has length 528 [2023-12-21 08:42:03,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:03,522 INFO L495 AbstractCegarLoop]: Abstraction has 13674 states and 22917 transitions. [2023-12-21 08:42:03,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:42:03,523 INFO L276 IsEmpty]: Start isEmpty. Operand 13674 states and 22917 transitions. [2023-12-21 08:42:03,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2023-12-21 08:42:03,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:03,533 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:42:03,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 08:42:03,742 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,SelfDestructingSolverStorable36 [2023-12-21 08:42:03,742 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:03,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:03,742 INFO L85 PathProgramCache]: Analyzing trace with hash -631546840, now seen corresponding path program 1 times [2023-12-21 08:42:03,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:03,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559735243] [2023-12-21 08:42:03,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:03,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:42:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:42:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:42:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:42:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:42:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:42:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:42:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:42:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 08:42:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:42:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:42:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:42:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:42:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:42:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:42:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:42:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:42:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-21 08:42:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:42:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:42:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 08:42:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 08:42:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:42:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:42:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:42:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:42:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 08:42:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 08:42:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2023-12-21 08:42:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2023-12-21 08:42:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-12-21 08:42:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2023-12-21 08:42:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2023-12-21 08:42:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:04,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 85 proven. 149 refuted. 0 times theorem prover too weak. 1163 trivial. 0 not checked. [2023-12-21 08:42:04,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:04,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559735243] [2023-12-21 08:42:04,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559735243] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:04,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318407659] [2023-12-21 08:42:04,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:04,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:04,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:04,819 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 08:42:04,834 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 08:42:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:05,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 4060 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:42:05,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:05,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 655 proven. 0 refuted. 0 times theorem prover too weak. 742 trivial. 0 not checked. [2023-12-21 08:42:05,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:42:05,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318407659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:42:05,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:42:05,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2023-12-21 08:42:05,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731029827] [2023-12-21 08:42:05,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:42:05,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:42:05,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:05,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:42:05,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:42:05,408 INFO L87 Difference]: Start difference. First operand 13674 states and 22917 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:42:07,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:07,969 INFO L93 Difference]: Finished difference Result 27417 states and 46421 transitions. [2023-12-21 08:42:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:42:07,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 529 [2023-12-21 08:42:07,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:08,021 INFO L225 Difference]: With dead ends: 27417 [2023-12-21 08:42:08,022 INFO L226 Difference]: Without dead ends: 13809 [2023-12-21 08:42:08,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:42:08,063 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 36 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:08,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 2360 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:42:08,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13809 states. [2023-12-21 08:42:10,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13809 to 13809. [2023-12-21 08:42:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13809 states, 10687 states have (on average 1.647047815102461) internal successors, (17602), 11144 states have internal predecessors, (17602), 2307 states have call successors, (2307), 640 states have call predecessors, (2307), 814 states have return successors, (3218), 2264 states have call predecessors, (3218), 2295 states have call successors, (3218) [2023-12-21 08:42:10,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13809 states to 13809 states and 23127 transitions. [2023-12-21 08:42:10,656 INFO L78 Accepts]: Start accepts. Automaton has 13809 states and 23127 transitions. Word has length 529 [2023-12-21 08:42:10,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:10,657 INFO L495 AbstractCegarLoop]: Abstraction has 13809 states and 23127 transitions. [2023-12-21 08:42:10,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:42:10,657 INFO L276 IsEmpty]: Start isEmpty. Operand 13809 states and 23127 transitions. [2023-12-21 08:42:10,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2023-12-21 08:42:10,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:10,669 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:42:10,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-21 08:42:10,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-12-21 08:42:10,878 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:10,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:10,878 INFO L85 PathProgramCache]: Analyzing trace with hash 617763810, now seen corresponding path program 1 times [2023-12-21 08:42:10,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:10,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693021351] [2023-12-21 08:42:10,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:10,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:11,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:11,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:11,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:11,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:42:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:42:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:42:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:42:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:42:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:42:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:42:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:42:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 08:42:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:42:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:42:12,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:42:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:42:12,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:42:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:42:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:42:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:42:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-21 08:42:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:42:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:42:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:42:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 08:42:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 08:42:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:42:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:42:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:42:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:42:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 08:42:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 08:42:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2023-12-21 08:42:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2023-12-21 08:42:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-12-21 08:42:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2023-12-21 08:42:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2023-12-21 08:42:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 87 proven. 148 refuted. 0 times theorem prover too weak. 1162 trivial. 0 not checked. [2023-12-21 08:42:12,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:12,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693021351] [2023-12-21 08:42:12,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693021351] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:12,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998194594] [2023-12-21 08:42:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:12,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:12,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:12,375 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 08:42:12,386 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 08:42:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:12,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 4060 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 08:42:12,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:13,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 737 proven. 261 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-12-21 08:42:13,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:42:13,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 129 proven. 35 refuted. 0 times theorem prover too weak. 1233 trivial. 0 not checked. [2023-12-21 08:42:13,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998194594] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:42:13,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:42:13,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6, 5] total 24 [2023-12-21 08:42:13,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345142740] [2023-12-21 08:42:13,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:42:13,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-21 08:42:13,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:13,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-21 08:42:13,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2023-12-21 08:42:13,841 INFO L87 Difference]: Start difference. First operand 13809 states and 23127 transitions. Second operand has 24 states, 24 states have (on average 18.041666666666668) internal successors, (433), 19 states have internal predecessors, (433), 11 states have call successors, (111), 11 states have call predecessors, (111), 11 states have return successors, (109), 13 states have call predecessors, (109), 11 states have call successors, (109) [2023-12-21 08:43:36,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:43:36,464 INFO L93 Difference]: Finished difference Result 129116 states and 278164 transitions. [2023-12-21 08:43:36,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-12-21 08:43:36,465 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 18.041666666666668) internal successors, (433), 19 states have internal predecessors, (433), 11 states have call successors, (111), 11 states have call predecessors, (111), 11 states have return successors, (109), 13 states have call predecessors, (109), 11 states have call successors, (109) Word has length 529 [2023-12-21 08:43:36,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:43:37,647 INFO L225 Difference]: With dead ends: 129116 [2023-12-21 08:43:37,647 INFO L226 Difference]: Without dead ends: 111426 [2023-12-21 08:43:37,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1420 GetRequests, 1269 SyntacticMatches, 1 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8776 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=3257, Invalid=19695, Unknown=0, NotChecked=0, Total=22952 [2023-12-21 08:43:37,962 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 24164 mSDsluCounter, 8784 mSDsCounter, 0 mSdLazyCounter, 25265 mSolverCounterSat, 14619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24164 SdHoareTripleChecker+Valid, 9555 SdHoareTripleChecker+Invalid, 39884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 14619 IncrementalHoareTripleChecker+Valid, 25265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:43:37,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24164 Valid, 9555 Invalid, 39884 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [14619 Valid, 25265 Invalid, 0 Unknown, 0 Unchecked, 29.2s Time] [2023-12-21 08:43:38,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111426 states. [2023-12-21 08:43:53,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111426 to 48431. [2023-12-21 08:43:53,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48431 states, 34944 states have (on average 1.5800709706959708) internal successors, (55214), 37101 states have internal predecessors, (55214), 10852 states have call successors, (10852), 1973 states have call predecessors, (10852), 2634 states have return successors, (15899), 10906 states have call predecessors, (15899), 10822 states have call successors, (15899) [2023-12-21 08:43:54,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48431 states to 48431 states and 81965 transitions. [2023-12-21 08:43:54,156 INFO L78 Accepts]: Start accepts. Automaton has 48431 states and 81965 transitions. Word has length 529 [2023-12-21 08:43:54,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:43:54,157 INFO L495 AbstractCegarLoop]: Abstraction has 48431 states and 81965 transitions. [2023-12-21 08:43:54,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 18.041666666666668) internal successors, (433), 19 states have internal predecessors, (433), 11 states have call successors, (111), 11 states have call predecessors, (111), 11 states have return successors, (109), 13 states have call predecessors, (109), 11 states have call successors, (109) [2023-12-21 08:43:54,157 INFO L276 IsEmpty]: Start isEmpty. Operand 48431 states and 81965 transitions. [2023-12-21 08:43:54,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2023-12-21 08:43:54,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:43:54,179 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:43:54,188 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 08:43:54,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-12-21 08:43:54,388 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:43:54,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:43:54,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1000263732, now seen corresponding path program 1 times [2023-12-21 08:43:54,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:43:54,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579914885] [2023-12-21 08:43:54,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:54,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:43:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:54,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:43:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:54,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:54,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:43:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:43:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:43:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:43:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:43:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:43:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:43:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:43:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:43:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:43:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 08:43:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:43:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:43:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:43:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:43:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:43:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:43:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:43:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:43:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-21 08:43:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:55,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:43:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:43:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:43:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:43:55,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 08:43:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 08:43:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:43:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:43:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:43:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:43:55,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 08:43:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-21 08:43:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2023-12-21 08:43:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:43:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 497 [2023-12-21 08:43:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2023-12-21 08:43:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:43:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2023-12-21 08:43:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2023-12-21 08:43:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:55,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 53 proven. 111 refuted. 0 times theorem prover too weak. 1413 trivial. 0 not checked. [2023-12-21 08:43:55,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:43:55,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579914885] [2023-12-21 08:43:55,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579914885] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:43:55,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86921898] [2023-12-21 08:43:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:43:55,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:43:55,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:43:55,600 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 08:43:55,605 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 08:43:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:43:56,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 4070 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 08:43:56,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:43:56,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 737 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-12-21 08:43:56,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:43:56,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86921898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:43:56,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:43:56,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2023-12-21 08:43:56,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330447187] [2023-12-21 08:43:56,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:43:56,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 08:43:56,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:43:56,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 08:43:56,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:43:56,270 INFO L87 Difference]: Start difference. First operand 48431 states and 81965 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:44:21,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:44:21,421 INFO L93 Difference]: Finished difference Result 131687 states and 231987 transitions. [2023-12-21 08:44:21,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 08:44:21,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 530 [2023-12-21 08:44:21,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:44:22,137 INFO L225 Difference]: With dead ends: 131687 [2023-12-21 08:44:22,137 INFO L226 Difference]: Without dead ends: 90059 [2023-12-21 08:44:22,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 649 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:44:22,485 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 790 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:44:22,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2349 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:44:22,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90059 states. [2023-12-21 08:44:47,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90059 to 90057. [2023-12-21 08:44:47,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90057 states, 64598 states have (on average 1.5748784792098827) internal successors, (101734), 68725 states have internal predecessors, (101734), 20612 states have call successors, (20612), 3581 states have call predecessors, (20612), 4846 states have return successors, (35839), 20850 states have call predecessors, (35839), 20558 states have call successors, (35839) [2023-12-21 08:44:48,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90057 states to 90057 states and 158185 transitions. [2023-12-21 08:44:48,341 INFO L78 Accepts]: Start accepts. Automaton has 90057 states and 158185 transitions. Word has length 530 [2023-12-21 08:44:48,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:44:48,341 INFO L495 AbstractCegarLoop]: Abstraction has 90057 states and 158185 transitions. [2023-12-21 08:44:48,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-21 08:44:48,341 INFO L276 IsEmpty]: Start isEmpty. Operand 90057 states and 158185 transitions. [2023-12-21 08:44:48,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2023-12-21 08:44:48,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:44:48,372 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 08:44:48,383 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 08:44:48,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-12-21 08:44:48,577 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:44:48,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:44:48,578 INFO L85 PathProgramCache]: Analyzing trace with hash -698659512, now seen corresponding path program 1 times [2023-12-21 08:44:48,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:44:48,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155285948] [2023-12-21 08:44:48,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:48,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:44:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:44:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:44:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:44:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:44:49,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:44:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:44:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:44:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:44:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:44:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:44:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-21 08:44:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:44:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:44:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:44:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:44:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:44:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:44:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:44:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 08:44:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-12-21 08:44:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:44:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:44:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:44:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 08:44:49,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:44:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:44:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:44:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:44:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 08:44:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 08:44:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-21 08:44:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2023-12-21 08:44:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-21 08:44:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2023-12-21 08:44:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2023-12-21 08:44:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2023-12-21 08:44:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:49,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 53 proven. 111 refuted. 0 times theorem prover too weak. 1413 trivial. 0 not checked. [2023-12-21 08:44:49,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:44:49,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155285948] [2023-12-21 08:44:49,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155285948] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:44:49,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810456770] [2023-12-21 08:44:49,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:49,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:44:49,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:44:49,693 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 08:44:49,694 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 08:44:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:50,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 4071 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:44:50,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:44:50,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 721 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2023-12-21 08:44:50,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:44:50,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810456770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:44:50,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:44:50,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:44:50,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527435859] [2023-12-21 08:44:50,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:44:50,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:44:50,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:44:50,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:44:50,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:44:50,308 INFO L87 Difference]: Start difference. First operand 90057 states and 158185 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-21 08:45:19,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:45:19,076 INFO L93 Difference]: Finished difference Result 182298 states and 326808 transitions. [2023-12-21 08:45:19,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:45:19,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 531 [2023-12-21 08:45:19,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:45:20,008 INFO L225 Difference]: With dead ends: 182298 [2023-12-21 08:45:20,008 INFO L226 Difference]: Without dead ends: 92307 [2023-12-21 08:45:20,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 663 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:45:20,698 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 205 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:45:20,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2235 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:45:20,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92307 states. [2023-12-21 08:45:45,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92307 to 92307. [2023-12-21 08:45:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92307 states, 66758 states have (on average 1.5839150364001318) internal successors, (105739), 70885 states have internal predecessors, (105739), 20612 states have call successors, (20612), 3671 states have call predecessors, (20612), 4936 states have return successors, (35839), 20850 states have call predecessors, (35839), 20558 states have call successors, (35839) [2023-12-21 08:45:46,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92307 states to 92307 states and 162190 transitions. [2023-12-21 08:45:46,814 INFO L78 Accepts]: Start accepts. Automaton has 92307 states and 162190 transitions. Word has length 531 [2023-12-21 08:45:46,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:45:46,814 INFO L495 AbstractCegarLoop]: Abstraction has 92307 states and 162190 transitions. [2023-12-21 08:45:46,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-12-21 08:45:46,815 INFO L276 IsEmpty]: Start isEmpty. Operand 92307 states and 162190 transitions. [2023-12-21 08:45:46,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-12-21 08:45:46,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:45:46,847 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-21 08:45:46,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-21 08:45:47,055 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,SelfDestructingSolverStorable40 [2023-12-21 08:45:47,056 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:45:47,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:45:47,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1663908896, now seen corresponding path program 1 times [2023-12-21 08:45:47,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:45:47,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821622544] [2023-12-21 08:45:47,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:45:47,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:45:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:45:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:47,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:47,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:45:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:47,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:45:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:47,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:45:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:45:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:45:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:45:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:45:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:45:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:45:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-21 08:45:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-12-21 08:45:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:45:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:45:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:45:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:45:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:45:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:45:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:45:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-21 08:45:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2023-12-21 08:45:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:45:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:45:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:45:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-21 08:45:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 08:45:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:45:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:45:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:45:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:45:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 08:45:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 08:45:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 08:45:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2023-12-21 08:45:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:45:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2023-12-21 08:45:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 508 [2023-12-21 08:45:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:45:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2023-12-21 08:45:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2023-12-21 08:45:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 122 proven. 101 refuted. 0 times theorem prover too weak. 1357 trivial. 0 not checked. [2023-12-21 08:45:48,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:45:48,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821622544] [2023-12-21 08:45:48,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821622544] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:45:48,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510842900] [2023-12-21 08:45:48,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:45:48,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:45:48,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:45:48,582 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 08:45:48,601 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 08:45:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:45:49,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 4074 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 08:45:49,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:45:49,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 753 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2023-12-21 08:45:49,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:45:49,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510842900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:45:49,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:45:49,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [22] total 28 [2023-12-21 08:45:49,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096315915] [2023-12-21 08:45:49,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:45:49,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:45:49,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:45:49,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:45:49,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2023-12-21 08:45:49,590 INFO L87 Difference]: Start difference. First operand 92307 states and 162190 transitions. Second operand has 9 states, 9 states have (on average 23.555555555555557) internal successors, (212), 8 states have internal predecessors, (212), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41)