/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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 08:37:56,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 08:37:56,441 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 08:37:56,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 08:37:56,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 08:37:56,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 08:37:56,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 08:37:56,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 08:37:56,468 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 08:37:56,471 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 08:37:56,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 08:37:56,471 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 08:37:56,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 08:37:56,473 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 08:37:56,473 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 08:37:56,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 08:37:56,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 08:37:56,474 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 08:37:56,474 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 08:37:56,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 08:37:56,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 08:37:56,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 08:37:56,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 08:37:56,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 08:37:56,475 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 08:37:56,475 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 08:37:56,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 08:37:56,475 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 08:37:56,476 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 08:37:56,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 08:37:56,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 08:37:56,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 08:37:56,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 08:37:56,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 08:37:56,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 08:37:56,477 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 08:37:56,477 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 08:37:56,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 08:37:56,477 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 08:37:56,477 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 08:37:56,477 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 08:37:56,478 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 08:37:56,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 08:37:56,478 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 08:37:56,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 08:37:56,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 08:37:56,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 08:37:56,718 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 08:37:56,718 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 08:37:56,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product11.cil.c [2023-12-21 08:37:57,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 08:37:58,077 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 08:37:58,078 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product11.cil.c [2023-12-21 08:37:58,108 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d0ac164b/576b0e8fd6fc41059ddc68f4e5b74051/FLAG0df499998 [2023-12-21 08:37:58,121 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d0ac164b/576b0e8fd6fc41059ddc68f4e5b74051 [2023-12-21 08:37:58,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 08:37:58,124 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 08:37:58,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 08:37:58,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 08:37:58,130 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 08:37:58,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38226d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58, skipping insertion in model container [2023-12-21 08:37:58,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,181 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 08:37:58,310 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_product11.cil.c[3700,3713] [2023-12-21 08:37:58,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 08:37:58,524 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 08:37:58,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-21 08:37:58,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [86] [2023-12-21 08:37:58,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [186] [2023-12-21 08:37:58,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [195] [2023-12-21 08:37:58,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [315] [2023-12-21 08:37:58,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [355] [2023-12-21 08:37:58,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [705] [2023-12-21 08:37:58,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1071] [2023-12-21 08:37:58,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1738] [2023-12-21 08:37:58,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3255] [2023-12-21 08:37:58,537 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_product11.cil.c[3700,3713] [2023-12-21 08:37:58,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 08:37:58,670 INFO L206 MainTranslator]: Completed translation [2023-12-21 08:37:58,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58 WrapperNode [2023-12-21 08:37:58,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 08:37:58,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 08:37:58,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 08:37:58,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 08:37:58,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,734 INFO L138 Inliner]: procedures = 90, calls = 331, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 1060 [2023-12-21 08:37:58,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 08:37:58,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 08:37:58,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 08:37:58,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 08:37:58,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,749 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,776 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2023-12-21 08:37:58,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 08:37:58,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 08:37:58,877 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 08:37:58,877 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 08:37:58,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (1/1) ... [2023-12-21 08:37:58,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 08:37:58,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:37:58,930 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 08:37:58,950 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 08:37:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 08:37:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-12-21 08:37:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-12-21 08:37:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-12-21 08:37:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-12-21 08:37:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-12-21 08:37:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-12-21 08:37:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-12-21 08:37:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-12-21 08:37:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-12-21 08:37:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-12-21 08:37:58,957 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-12-21 08:37:58,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-12-21 08:37:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-21 08:37:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-21 08:37:58,958 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-21 08:37:58,958 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-21 08:37:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-12-21 08:37:58,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-12-21 08:37:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-12-21 08:37:58,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-12-21 08:37:58,959 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-12-21 08:37:58,959 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-12-21 08:37:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-12-21 08:37:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-12-21 08:37:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-12-21 08:37:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-12-21 08:37:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-21 08:37:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-12-21 08:37:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-12-21 08:37:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-12-21 08:37:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-12-21 08:37:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-12-21 08:37:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-12-21 08:37:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-12-21 08:37:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-12-21 08:37:58,960 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-12-21 08:37:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 08:37:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 08:37:58,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-12-21 08:37:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-12-21 08:37:58,962 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-12-21 08:37:58,962 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-12-21 08:37:58,962 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-12-21 08:37:58,962 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-12-21 08:37:58,962 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-12-21 08:37:58,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 08:37:58,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 08:37:58,963 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-12-21 08:37:58,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-12-21 08:37:59,129 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 08:37:59,131 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 08:37:59,833 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 08:37:59,893 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 08:37:59,893 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 08:37:59,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:37:59 BoogieIcfgContainer [2023-12-21 08:37:59,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 08:37:59,895 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 08:37:59,895 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 08:37:59,898 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 08:37:59,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 08:37:58" (1/3) ... [2023-12-21 08:37:59,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5b16cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:37:59, skipping insertion in model container [2023-12-21 08:37:59,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:37:58" (2/3) ... [2023-12-21 08:37:59,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5b16cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:37:59, skipping insertion in model container [2023-12-21 08:37:59,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:37:59" (3/3) ... [2023-12-21 08:37:59,900 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product11.cil.c [2023-12-21 08:37:59,913 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 08:37:59,913 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 08:37:59,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 08:37:59,982 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;@24d157e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 08:37:59,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 08:37:59,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 506 states, 391 states have (on average 1.7186700767263428) internal successors, (672), 407 states have internal predecessors, (672), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-21 08:38:00,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-21 08:38:00,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:00,017 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:00,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:00,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:00,022 INFO L85 PathProgramCache]: Analyzing trace with hash -881218989, now seen corresponding path program 1 times [2023-12-21 08:38:00,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:00,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830448512] [2023-12-21 08:38:00,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:00,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:38:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-21 08:38:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:38:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:38:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 08:38:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:38:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 08:38:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:00,638 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:00,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:00,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830448512] [2023-12-21 08:38:00,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830448512] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:00,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:00,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:00,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889734467] [2023-12-21 08:38:00,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:00,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:00,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:00,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:00,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:00,673 INFO L87 Difference]: Start difference. First operand has 506 states, 391 states have (on average 1.7186700767263428) internal successors, (672), 407 states have internal predecessors, (672), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:03,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:03,998 INFO L93 Difference]: Finished difference Result 1199 states and 2054 transitions. [2023-12-21 08:38:04,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:38:04,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2023-12-21 08:38:04,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:04,040 INFO L225 Difference]: With dead ends: 1199 [2023-12-21 08:38:04,040 INFO L226 Difference]: Without dead ends: 687 [2023-12-21 08:38:04,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:38:04,057 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 1303 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:04,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 1052 Invalid, 2775 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [370 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 08:38:04,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-12-21 08:38:04,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 505. [2023-12-21 08:38:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 391 states have (on average 1.70076726342711) internal successors, (665), 406 states have internal predecessors, (665), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-21 08:38:04,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 846 transitions. [2023-12-21 08:38:04,174 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 846 transitions. Word has length 89 [2023-12-21 08:38:04,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:04,175 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 846 transitions. [2023-12-21 08:38:04,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:04,175 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 846 transitions. [2023-12-21 08:38:04,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-21 08:38:04,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:04,179 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:04,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 08:38:04,179 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:04,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:04,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1711188216, now seen corresponding path program 1 times [2023-12-21 08:38:04,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:04,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746203652] [2023-12-21 08:38:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:04,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 08:38:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:38:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:38:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:38:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:38:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:38:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:38:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:04,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:04,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746203652] [2023-12-21 08:38:04,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746203652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:04,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:04,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:04,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015219440] [2023-12-21 08:38:04,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:04,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:04,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:04,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:04,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:04,421 INFO L87 Difference]: Start difference. First operand 505 states and 846 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:07,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:07,251 INFO L93 Difference]: Finished difference Result 1180 states and 1988 transitions. [2023-12-21 08:38:07,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:38:07,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 90 [2023-12-21 08:38:07,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:07,258 INFO L225 Difference]: With dead ends: 1180 [2023-12-21 08:38:07,258 INFO L226 Difference]: Without dead ends: 687 [2023-12-21 08:38:07,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:07,262 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1271 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 2772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:07,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 1056 Invalid, 2772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-21 08:38:07,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-12-21 08:38:07,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 505. [2023-12-21 08:38:07,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 391 states have (on average 1.6982097186700766) internal successors, (664), 406 states have internal predecessors, (664), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-21 08:38:07,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 845 transitions. [2023-12-21 08:38:07,357 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 845 transitions. Word has length 90 [2023-12-21 08:38:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:07,357 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 845 transitions. [2023-12-21 08:38:07,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 845 transitions. [2023-12-21 08:38:07,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-21 08:38:07,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:07,361 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:07,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 08:38:07,361 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:07,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:07,361 INFO L85 PathProgramCache]: Analyzing trace with hash 979281911, now seen corresponding path program 1 times [2023-12-21 08:38:07,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:07,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31613229] [2023-12-21 08:38:07,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:07,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-21 08:38:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-21 08:38:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 08:38:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:38:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 08:38:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 08:38:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 08:38:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:07,613 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:07,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:07,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31613229] [2023-12-21 08:38:07,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31613229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:07,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:07,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:07,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868212284] [2023-12-21 08:38:07,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:07,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:07,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:07,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:07,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:07,615 INFO L87 Difference]: Start difference. First operand 505 states and 845 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:10,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:10,438 INFO L93 Difference]: Finished difference Result 1180 states and 1987 transitions. [2023-12-21 08:38:10,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:38:10,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2023-12-21 08:38:10,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:10,445 INFO L225 Difference]: With dead ends: 1180 [2023-12-21 08:38:10,445 INFO L226 Difference]: Without dead ends: 687 [2023-12-21 08:38:10,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:10,450 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 1282 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 2752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:10,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1329 Valid, 1005 Invalid, 2752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 08:38:10,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-12-21 08:38:10,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 505. [2023-12-21 08:38:10,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 391 states have (on average 1.6956521739130435) internal successors, (663), 406 states have internal predecessors, (663), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-21 08:38:10,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 844 transitions. [2023-12-21 08:38:10,512 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 844 transitions. Word has length 91 [2023-12-21 08:38:10,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:10,513 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 844 transitions. [2023-12-21 08:38:10,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:10,513 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 844 transitions. [2023-12-21 08:38:10,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 08:38:10,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:10,515 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:10,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 08:38:10,515 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:10,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:10,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1134222316, now seen corresponding path program 1 times [2023-12-21 08:38:10,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:10,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151875084] [2023-12-21 08:38:10,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:10,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-21 08:38:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 08:38:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:38:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:38:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 08:38:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 08:38:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 08:38:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:10,806 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:10,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:10,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151875084] [2023-12-21 08:38:10,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151875084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:10,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:10,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:10,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042391328] [2023-12-21 08:38:10,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:10,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:10,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:10,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:10,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:10,808 INFO L87 Difference]: Start difference. First operand 505 states and 844 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:13,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:13,683 INFO L93 Difference]: Finished difference Result 1180 states and 1986 transitions. [2023-12-21 08:38:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:38:13,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2023-12-21 08:38:13,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:13,687 INFO L225 Difference]: With dead ends: 1180 [2023-12-21 08:38:13,687 INFO L226 Difference]: Without dead ends: 687 [2023-12-21 08:38:13,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:13,689 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 1268 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:13,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1038 Invalid, 2768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 08:38:13,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-12-21 08:38:13,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 505. [2023-12-21 08:38:13,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 391 states have (on average 1.6930946291560103) internal successors, (662), 406 states have internal predecessors, (662), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-21 08:38:13,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 843 transitions. [2023-12-21 08:38:13,742 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 843 transitions. Word has length 92 [2023-12-21 08:38:13,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:13,742 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 843 transitions. [2023-12-21 08:38:13,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:13,742 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 843 transitions. [2023-12-21 08:38:13,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 08:38:13,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:13,744 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:13,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 08:38:13,744 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:13,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:13,744 INFO L85 PathProgramCache]: Analyzing trace with hash -2847333, now seen corresponding path program 1 times [2023-12-21 08:38:13,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:13,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335581144] [2023-12-21 08:38:13,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:13,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-21 08:38:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 08:38:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:38:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:38:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:38:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:38:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 08:38:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:13,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:13,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335581144] [2023-12-21 08:38:13,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335581144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:13,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:13,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:13,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825573401] [2023-12-21 08:38:13,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:13,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:13,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:13,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:13,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:13,991 INFO L87 Difference]: Start difference. First operand 505 states and 843 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:16,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:16,917 INFO L93 Difference]: Finished difference Result 1180 states and 1985 transitions. [2023-12-21 08:38:16,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:38:16,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-12-21 08:38:16,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:16,920 INFO L225 Difference]: With dead ends: 1180 [2023-12-21 08:38:16,921 INFO L226 Difference]: Without dead ends: 687 [2023-12-21 08:38:16,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:16,923 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 1265 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:16,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 1046 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 08:38:16,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-12-21 08:38:17,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 505. [2023-12-21 08:38:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 391 states have (on average 1.6905370843989769) internal successors, (661), 406 states have internal predecessors, (661), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-21 08:38:17,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 842 transitions. [2023-12-21 08:38:17,035 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 842 transitions. Word has length 93 [2023-12-21 08:38:17,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:17,035 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 842 transitions. [2023-12-21 08:38:17,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:17,035 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 842 transitions. [2023-12-21 08:38:17,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 08:38:17,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:17,037 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:17,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 08:38:17,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:17,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:17,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1757444304, now seen corresponding path program 1 times [2023-12-21 08:38:17,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:17,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946753940] [2023-12-21 08:38:17,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:17,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 08:38:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:38:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:38:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:38:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 08:38:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:38:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:17,356 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:17,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:17,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946753940] [2023-12-21 08:38:17,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946753940] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:17,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:17,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:38:17,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938361613] [2023-12-21 08:38:17,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:17,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:38:17,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:17,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:38:17,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:17,358 INFO L87 Difference]: Start difference. First operand 505 states and 842 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:21,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:21,338 INFO L93 Difference]: Finished difference Result 1200 states and 2019 transitions. [2023-12-21 08:38:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 08:38:21,338 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 94 [2023-12-21 08:38:21,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:21,342 INFO L225 Difference]: With dead ends: 1200 [2023-12-21 08:38:21,342 INFO L226 Difference]: Without dead ends: 711 [2023-12-21 08:38:21,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:38:21,344 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 1382 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 4591 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 4965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 4591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:21,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 1988 Invalid, 4965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 4591 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-21 08:38:21,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2023-12-21 08:38:21,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 517. [2023-12-21 08:38:21,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 400 states have (on average 1.6875) internal successors, (675), 417 states have internal predecessors, (675), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (94), 89 states have call predecessors, (94), 91 states have call successors, (94) [2023-12-21 08:38:21,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 861 transitions. [2023-12-21 08:38:21,425 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 861 transitions. Word has length 94 [2023-12-21 08:38:21,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:21,425 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 861 transitions. [2023-12-21 08:38:21,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 6 states have internal predecessors, (53), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:21,425 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 861 transitions. [2023-12-21 08:38:21,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-21 08:38:21,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:21,427 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:21,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 08:38:21,427 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:21,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:21,427 INFO L85 PathProgramCache]: Analyzing trace with hash 272388753, now seen corresponding path program 1 times [2023-12-21 08:38:21,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:21,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609861592] [2023-12-21 08:38:21,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:21,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 08:38:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-21 08:38:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:38:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:38:21,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 08:38:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:38:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:21,659 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:21,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:21,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609861592] [2023-12-21 08:38:21,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609861592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:21,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:21,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:21,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329821102] [2023-12-21 08:38:21,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:21,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:21,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:21,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:21,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:21,661 INFO L87 Difference]: Start difference. First operand 517 states and 861 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:24,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:24,724 INFO L93 Difference]: Finished difference Result 1239 states and 2088 transitions. [2023-12-21 08:38:24,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 08:38:24,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 94 [2023-12-21 08:38:24,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:24,728 INFO L225 Difference]: With dead ends: 1239 [2023-12-21 08:38:24,728 INFO L226 Difference]: Without dead ends: 742 [2023-12-21 08:38:24,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:38:24,732 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1387 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 2318 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 2696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 2318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:24,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 1026 Invalid, 2696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 2318 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 08:38:24,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-21 08:38:24,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 536. [2023-12-21 08:38:24,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 418 states have (on average 1.6818181818181819) internal successors, (703), 435 states have internal predecessors, (703), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-12-21 08:38:24,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 888 transitions. [2023-12-21 08:38:24,789 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 888 transitions. Word has length 94 [2023-12-21 08:38:24,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:24,789 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 888 transitions. [2023-12-21 08:38:24,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:24,790 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 888 transitions. [2023-12-21 08:38:24,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 08:38:24,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:24,791 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:24,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 08:38:24,792 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:24,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:24,792 INFO L85 PathProgramCache]: Analyzing trace with hash -800450367, now seen corresponding path program 1 times [2023-12-21 08:38:24,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:24,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009076194] [2023-12-21 08:38:24,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:24,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:24,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:24,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:24,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-21 08:38:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:38:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:38:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 08:38:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:38:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:38:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:25,022 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:25,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:25,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009076194] [2023-12-21 08:38:25,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009076194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:25,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:25,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:25,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484098574] [2023-12-21 08:38:25,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:25,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:25,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:25,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:25,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:25,024 INFO L87 Difference]: Start difference. First operand 536 states and 888 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:27,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:27,822 INFO L93 Difference]: Finished difference Result 1214 states and 2023 transitions. [2023-12-21 08:38:27,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:38:27,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2023-12-21 08:38:27,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:27,826 INFO L225 Difference]: With dead ends: 1214 [2023-12-21 08:38:27,826 INFO L226 Difference]: Without dead ends: 734 [2023-12-21 08:38:27,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:38:27,828 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 1358 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1405 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 2679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:27,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1405 Valid, 1002 Invalid, 2679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 08:38:27,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-12-21 08:38:27,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 536. [2023-12-21 08:38:27,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 418 states have (on average 1.6698564593301435) internal successors, (698), 435 states have internal predecessors, (698), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-12-21 08:38:27,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 883 transitions. [2023-12-21 08:38:27,888 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 883 transitions. Word has length 95 [2023-12-21 08:38:27,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:27,888 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 883 transitions. [2023-12-21 08:38:27,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 883 transitions. [2023-12-21 08:38:27,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 08:38:27,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:27,890 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:27,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 08:38:27,890 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:27,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:27,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1550383980, now seen corresponding path program 1 times [2023-12-21 08:38:27,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:27,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298283833] [2023-12-21 08:38:27,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:27,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-21 08:38:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:38:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:38:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 08:38:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:38:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:38:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:28,109 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:28,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:28,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298283833] [2023-12-21 08:38:28,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298283833] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:28,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:28,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:28,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875222014] [2023-12-21 08:38:28,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:28,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:28,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:28,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:28,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:28,110 INFO L87 Difference]: Start difference. First operand 536 states and 883 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:30,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:30,864 INFO L93 Difference]: Finished difference Result 1214 states and 2018 transitions. [2023-12-21 08:38:30,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:38:30,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2023-12-21 08:38:30,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:30,868 INFO L225 Difference]: With dead ends: 1214 [2023-12-21 08:38:30,868 INFO L226 Difference]: Without dead ends: 734 [2023-12-21 08:38:30,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:38:30,872 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 1345 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:30,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 1015 Invalid, 2676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 08:38:30,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-12-21 08:38:30,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 536. [2023-12-21 08:38:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 418 states have (on average 1.6578947368421053) internal successors, (693), 435 states have internal predecessors, (693), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-12-21 08:38:30,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 878 transitions. [2023-12-21 08:38:30,931 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 878 transitions. Word has length 96 [2023-12-21 08:38:30,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:30,931 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 878 transitions. [2023-12-21 08:38:30,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 878 transitions. [2023-12-21 08:38:30,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 08:38:30,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:30,933 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:30,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 08:38:30,934 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:30,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:30,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2031516636, now seen corresponding path program 1 times [2023-12-21 08:38:30,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:30,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290682102] [2023-12-21 08:38:30,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:30,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:38:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:38:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:38:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:38:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:38:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:38:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:31,236 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:31,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:31,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290682102] [2023-12-21 08:38:31,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290682102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:31,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:31,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:38:31,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613836951] [2023-12-21 08:38:31,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:31,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:38:31,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:31,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:38:31,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:31,237 INFO L87 Difference]: Start difference. First operand 536 states and 878 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:34,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:34,768 INFO L93 Difference]: Finished difference Result 1214 states and 2010 transitions. [2023-12-21 08:38:34,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:38:34,769 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 97 [2023-12-21 08:38:34,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:34,772 INFO L225 Difference]: With dead ends: 1214 [2023-12-21 08:38:34,773 INFO L226 Difference]: Without dead ends: 748 [2023-12-21 08:38:34,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:38:34,775 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1329 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 4538 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 4914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 4538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:34,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1376 Valid, 1915 Invalid, 4914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 4538 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 08:38:34,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-12-21 08:38:34,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 538. [2023-12-21 08:38:34,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 420 states have (on average 1.6523809523809523) internal successors, (694), 437 states have internal predecessors, (694), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-12-21 08:38:34,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 879 transitions. [2023-12-21 08:38:34,835 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 879 transitions. Word has length 97 [2023-12-21 08:38:34,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:34,835 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 879 transitions. [2023-12-21 08:38:34,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:34,835 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 879 transitions. [2023-12-21 08:38:34,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 08:38:34,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:34,837 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:34,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 08:38:34,837 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:34,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:34,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1634053892, now seen corresponding path program 1 times [2023-12-21 08:38:34,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:34,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362025698] [2023-12-21 08:38:34,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:34,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:35,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:38:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:38:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:38:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:38:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:38:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:38:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:35,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:35,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362025698] [2023-12-21 08:38:35,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362025698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:35,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:35,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:35,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144533958] [2023-12-21 08:38:35,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:35,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:35,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:35,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:35,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:35,074 INFO L87 Difference]: Start difference. First operand 538 states and 879 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:37,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:37,801 INFO L93 Difference]: Finished difference Result 1218 states and 2013 transitions. [2023-12-21 08:38:37,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:38:37,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2023-12-21 08:38:37,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:37,804 INFO L225 Difference]: With dead ends: 1218 [2023-12-21 08:38:37,804 INFO L226 Difference]: Without dead ends: 736 [2023-12-21 08:38:37,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:38:37,806 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 1326 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1373 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:37,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1373 Valid, 1031 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 2280 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 08:38:37,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-12-21 08:38:37,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 538. [2023-12-21 08:38:37,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 420 states have (on average 1.6404761904761904) internal successors, (689), 437 states have internal predecessors, (689), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-12-21 08:38:37,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 874 transitions. [2023-12-21 08:38:37,879 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 874 transitions. Word has length 97 [2023-12-21 08:38:37,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:37,879 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 874 transitions. [2023-12-21 08:38:37,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:37,880 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 874 transitions. [2023-12-21 08:38:37,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 08:38:37,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:37,881 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:37,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 08:38:37,881 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:37,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:37,882 INFO L85 PathProgramCache]: Analyzing trace with hash 758062505, now seen corresponding path program 1 times [2023-12-21 08:38:37,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:37,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557523826] [2023-12-21 08:38:37,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:37,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:38:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:38:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:38:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:38:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:38:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:38:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:38,143 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:38,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:38,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557523826] [2023-12-21 08:38:38,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557523826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:38,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:38,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:38:38,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946298117] [2023-12-21 08:38:38,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:38,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:38:38,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:38,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:38:38,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:38,145 INFO L87 Difference]: Start difference. First operand 538 states and 874 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:41,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:41,756 INFO L93 Difference]: Finished difference Result 1236 states and 2033 transitions. [2023-12-21 08:38:41,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:38:41,756 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2023-12-21 08:38:41,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:41,762 INFO L225 Difference]: With dead ends: 1236 [2023-12-21 08:38:41,762 INFO L226 Difference]: Without dead ends: 766 [2023-12-21 08:38:41,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:38:41,765 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1335 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 4424 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 4808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 4424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:41,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 1903 Invalid, 4808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 4424 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 08:38:41,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-12-21 08:38:41,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 544. [2023-12-21 08:38:41,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 426 states have (on average 1.6291079812206573) internal successors, (694), 443 states have internal predecessors, (694), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-12-21 08:38:41,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 879 transitions. [2023-12-21 08:38:41,892 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 879 transitions. Word has length 98 [2023-12-21 08:38:41,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:41,892 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 879 transitions. [2023-12-21 08:38:41,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:41,893 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 879 transitions. [2023-12-21 08:38:41,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 08:38:41,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:41,895 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:41,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 08:38:41,895 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:41,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:41,896 INFO L85 PathProgramCache]: Analyzing trace with hash -318271417, now seen corresponding path program 1 times [2023-12-21 08:38:41,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:41,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449016254] [2023-12-21 08:38:41,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:41,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 08:38:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 08:38:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 08:38:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:38:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:38:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:38:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:42,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:42,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449016254] [2023-12-21 08:38:42,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449016254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:42,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:42,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:42,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615634649] [2023-12-21 08:38:42,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:42,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:42,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:42,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:42,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:42,116 INFO L87 Difference]: Start difference. First operand 544 states and 879 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:44,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:44,991 INFO L93 Difference]: Finished difference Result 1233 states and 2019 transitions. [2023-12-21 08:38:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:38:44,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-12-21 08:38:44,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:44,994 INFO L225 Difference]: With dead ends: 1233 [2023-12-21 08:38:44,994 INFO L226 Difference]: Without dead ends: 745 [2023-12-21 08:38:44,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:38:44,996 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1328 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 2635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:44,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 993 Invalid, 2635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 08:38:44,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-12-21 08:38:45,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 544. [2023-12-21 08:38:45,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 426 states have (on average 1.6173708920187793) internal successors, (689), 443 states have internal predecessors, (689), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-12-21 08:38:45,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 874 transitions. [2023-12-21 08:38:45,077 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 874 transitions. Word has length 98 [2023-12-21 08:38:45,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:45,077 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 874 transitions. [2023-12-21 08:38:45,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:45,077 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 874 transitions. [2023-12-21 08:38:45,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 08:38:45,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:45,079 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:45,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 08:38:45,079 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:45,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:45,080 INFO L85 PathProgramCache]: Analyzing trace with hash -2141220073, now seen corresponding path program 1 times [2023-12-21 08:38:45,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:45,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591336349] [2023-12-21 08:38:45,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:45,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:38:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:38:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 08:38:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 08:38:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:38:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 08:38:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:45,337 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:45,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:45,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591336349] [2023-12-21 08:38:45,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591336349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:45,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:45,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:38:45,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641620811] [2023-12-21 08:38:45,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:45,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:38:45,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:45,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:38:45,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:45,338 INFO L87 Difference]: Start difference. First operand 544 states and 874 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:49,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:49,552 INFO L93 Difference]: Finished difference Result 1248 states and 2034 transitions. [2023-12-21 08:38:49,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:38:49,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2023-12-21 08:38:49,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:49,556 INFO L225 Difference]: With dead ends: 1248 [2023-12-21 08:38:49,556 INFO L226 Difference]: Without dead ends: 775 [2023-12-21 08:38:49,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:38:49,559 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 1328 mSDsluCounter, 1563 mSDsCounter, 0 mSdLazyCounter, 4383 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 4768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 4383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:49,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 1861 Invalid, 4768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 4383 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-21 08:38:49,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2023-12-21 08:38:49,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 552. [2023-12-21 08:38:49,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 434 states have (on average 1.6036866359447004) internal successors, (696), 451 states have internal predecessors, (696), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (93), 89 states have call predecessors, (93), 91 states have call successors, (93) [2023-12-21 08:38:49,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 881 transitions. [2023-12-21 08:38:49,623 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 881 transitions. Word has length 99 [2023-12-21 08:38:49,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:49,623 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 881 transitions. [2023-12-21 08:38:49,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:49,623 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 881 transitions. [2023-12-21 08:38:49,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-21 08:38:49,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:49,625 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:49,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 08:38:49,626 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:49,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:49,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1229578953, now seen corresponding path program 1 times [2023-12-21 08:38:49,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:49,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213629779] [2023-12-21 08:38:49,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:49,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:38:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-21 08:38:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 08:38:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 08:38:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:38:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 08:38:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:49,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:49,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213629779] [2023-12-21 08:38:49,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213629779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:49,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:49,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:49,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392627114] [2023-12-21 08:38:49,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:49,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:49,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:49,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:49,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:49,861 INFO L87 Difference]: Start difference. First operand 552 states and 881 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:52,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:52,705 INFO L93 Difference]: Finished difference Result 1289 states and 2076 transitions. [2023-12-21 08:38:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 08:38:52,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2023-12-21 08:38:52,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:52,709 INFO L225 Difference]: With dead ends: 1289 [2023-12-21 08:38:52,709 INFO L226 Difference]: Without dead ends: 731 [2023-12-21 08:38:52,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-21 08:38:52,711 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 1240 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 2670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:52,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1056 Invalid, 2670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-21 08:38:52,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-12-21 08:38:52,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 534. [2023-12-21 08:38:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 419 states have (on average 1.6085918854415275) internal successors, (674), 434 states have internal predecessors, (674), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-21 08:38:52,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 855 transitions. [2023-12-21 08:38:52,775 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 855 transitions. Word has length 99 [2023-12-21 08:38:52,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:52,775 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 855 transitions. [2023-12-21 08:38:52,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:38:52,776 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 855 transitions. [2023-12-21 08:38:52,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 08:38:52,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:52,777 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:52,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 08:38:52,777 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:52,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:52,778 INFO L85 PathProgramCache]: Analyzing trace with hash 393390340, now seen corresponding path program 1 times [2023-12-21 08:38:52,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:52,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035272649] [2023-12-21 08:38:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:52,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:52,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:52,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:52,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:38:53,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:38:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 08:38:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:53,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 08:38:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 08:38:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 08:38:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:53,039 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:53,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:53,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035272649] [2023-12-21 08:38:53,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035272649] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:53,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:53,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:38:53,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338509920] [2023-12-21 08:38:53,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:53,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:38:53,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:53,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:38:53,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:38:53,042 INFO L87 Difference]: Start difference. First operand 534 states and 855 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:57,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:38:57,253 INFO L93 Difference]: Finished difference Result 1232 states and 1997 transitions. [2023-12-21 08:38:57,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:38:57,254 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2023-12-21 08:38:57,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:38:57,256 INFO L225 Difference]: With dead ends: 1232 [2023-12-21 08:38:57,257 INFO L226 Difference]: Without dead ends: 757 [2023-12-21 08:38:57,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:38:57,259 INFO L413 NwaCegarLoop]: 296 mSDtfsCounter, 1297 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 4316 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 4696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 4316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:38:57,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 1853 Invalid, 4696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 4316 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-21 08:38:57,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-12-21 08:38:57,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 544. [2023-12-21 08:38:57,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 429 states have (on average 1.5944055944055944) internal successors, (684), 444 states have internal predecessors, (684), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-21 08:38:57,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 865 transitions. [2023-12-21 08:38:57,352 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 865 transitions. Word has length 100 [2023-12-21 08:38:57,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:38:57,352 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 865 transitions. [2023-12-21 08:38:57,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-21 08:38:57,352 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 865 transitions. [2023-12-21 08:38:57,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 08:38:57,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:38:57,354 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:38:57,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 08:38:57,354 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:38:57,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:38:57,354 INFO L85 PathProgramCache]: Analyzing trace with hash -836366524, now seen corresponding path program 1 times [2023-12-21 08:38:57,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:38:57,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504699283] [2023-12-21 08:38:57,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:38:57,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:38:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:38:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:38:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:38:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:38:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:38:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:38:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:38:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:38:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 08:38:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:38:57,553 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 08:38:57,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:38:57,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504699283] [2023-12-21 08:38:57,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504699283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:38:57,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:38:57,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 08:38:57,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413826056] [2023-12-21 08:38:57,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:38:57,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:38:57,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:38:57,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:38:57,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 08:38:57,555 INFO L87 Difference]: Start difference. First operand 544 states and 865 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:39:00,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:00,661 INFO L93 Difference]: Finished difference Result 1234 states and 1991 transitions. [2023-12-21 08:39:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 08:39:00,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 101 [2023-12-21 08:39:00,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:00,689 INFO L225 Difference]: With dead ends: 1234 [2023-12-21 08:39:00,689 INFO L226 Difference]: Without dead ends: 734 [2023-12-21 08:39:00,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:39:00,691 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1319 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 2599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:00,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 1058 Invalid, 2599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 08:39:00,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-12-21 08:39:00,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 544. [2023-12-21 08:39:00,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 429 states have (on average 1.5850815850815851) internal successors, (680), 444 states have internal predecessors, (680), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-21 08:39:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 861 transitions. [2023-12-21 08:39:00,760 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 861 transitions. Word has length 101 [2023-12-21 08:39:00,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:00,761 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 861 transitions. [2023-12-21 08:39:00,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-21 08:39:00,761 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 861 transitions. [2023-12-21 08:39:00,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-21 08:39:00,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:00,764 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:00,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 08:39:00,764 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:00,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:00,765 INFO L85 PathProgramCache]: Analyzing trace with hash -863432126, now seen corresponding path program 1 times [2023-12-21 08:39:00,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:00,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282092992] [2023-12-21 08:39:00,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:00,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-21 08:39:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:39:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:00,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:39:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:01,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:39:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:01,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:01,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 08:39:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 08:39:01,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:01,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282092992] [2023-12-21 08:39:01,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282092992] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:01,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563983479] [2023-12-21 08:39:01,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:01,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:01,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:01,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:01,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 08:39:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:01,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:39:01,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 08:39:01,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:01,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563983479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:01,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:01,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:39:01,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510717896] [2023-12-21 08:39:01,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:01,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:01,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:01,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:01,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:39:01,327 INFO L87 Difference]: Start difference. First operand 544 states and 861 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:01,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:01,762 INFO L93 Difference]: Finished difference Result 1026 states and 1674 transitions. [2023-12-21 08:39:01,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:01,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-12-21 08:39:01,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:01,765 INFO L225 Difference]: With dead ends: 1026 [2023-12-21 08:39:01,765 INFO L226 Difference]: Without dead ends: 552 [2023-12-21 08:39:01,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:39:01,768 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 762 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:01,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1961 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:39:01,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2023-12-21 08:39:01,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2023-12-21 08:39:01,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 436 states have (on average 1.5871559633027523) internal successors, (692), 451 states have internal predecessors, (692), 91 states have call successors, (91), 25 states have call predecessors, (91), 24 states have return successors, (91), 88 states have call predecessors, (91), 90 states have call successors, (91) [2023-12-21 08:39:01,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 874 transitions. [2023-12-21 08:39:01,855 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 874 transitions. Word has length 101 [2023-12-21 08:39:01,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:01,856 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 874 transitions. [2023-12-21 08:39:01,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:01,856 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 874 transitions. [2023-12-21 08:39:01,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 08:39:01,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:01,858 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:01,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:02,064 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 08:39:02,064 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:02,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:02,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1929544579, now seen corresponding path program 1 times [2023-12-21 08:39:02,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:02,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397307771] [2023-12-21 08:39:02,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:02,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 08:39:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:39:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-21 08:39:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:39:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 08:39:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:02,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 08:39:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,283 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 08:39:02,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:02,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397307771] [2023-12-21 08:39:02,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397307771] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:02,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935744168] [2023-12-21 08:39:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:02,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:02,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:02,296 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:02,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 08:39:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:02,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:39:02,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:02,575 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-21 08:39:02,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:02,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935744168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:02,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:02,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:39:02,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338576798] [2023-12-21 08:39:02,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:02,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:02,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:02,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:02,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:39:02,577 INFO L87 Difference]: Start difference. First operand 552 states and 874 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:03,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:03,024 INFO L93 Difference]: Finished difference Result 1042 states and 1697 transitions. [2023-12-21 08:39:03,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:03,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2023-12-21 08:39:03,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:03,028 INFO L225 Difference]: With dead ends: 1042 [2023-12-21 08:39:03,028 INFO L226 Difference]: Without dead ends: 560 [2023-12-21 08:39:03,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:39:03,036 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 769 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:03,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1961 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 08:39:03,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-12-21 08:39:03,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2023-12-21 08:39:03,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 443 states have (on average 1.5891647855530473) internal successors, (704), 458 states have internal predecessors, (704), 91 states have call successors, (91), 26 states have call predecessors, (91), 25 states have return successors, (92), 88 states have call predecessors, (92), 90 states have call successors, (92) [2023-12-21 08:39:03,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 887 transitions. [2023-12-21 08:39:03,140 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 887 transitions. Word has length 104 [2023-12-21 08:39:03,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:03,140 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 887 transitions. [2023-12-21 08:39:03,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:03,140 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 887 transitions. [2023-12-21 08:39:03,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 08:39:03,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:03,142 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:03,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:03,342 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 08:39:03,343 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:03,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:03,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1747128546, now seen corresponding path program 1 times [2023-12-21 08:39:03,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:03,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567073911] [2023-12-21 08:39:03,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:03,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:39:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:39:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 08:39:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:39:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:39:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:39:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 08:39:03,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:03,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567073911] [2023-12-21 08:39:03,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567073911] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:03,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689535375] [2023-12-21 08:39:03,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:03,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:03,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:03,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:03,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 08:39:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:03,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:39:03,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:03,855 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-21 08:39:03,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:03,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689535375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:03,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:03,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:39:03,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047354427] [2023-12-21 08:39:03,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:03,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:03,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:03,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:03,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:39:03,856 INFO L87 Difference]: Start difference. First operand 560 states and 887 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:04,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:04,283 INFO L93 Difference]: Finished difference Result 1058 states and 1720 transitions. [2023-12-21 08:39:04,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:04,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2023-12-21 08:39:04,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:04,286 INFO L225 Difference]: With dead ends: 1058 [2023-12-21 08:39:04,286 INFO L226 Difference]: Without dead ends: 568 [2023-12-21 08:39:04,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:39:04,289 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 755 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:04,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1961 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:39:04,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2023-12-21 08:39:04,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2023-12-21 08:39:04,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 450 states have (on average 1.5911111111111111) internal successors, (716), 465 states have internal predecessors, (716), 91 states have call successors, (91), 27 states have call predecessors, (91), 26 states have return successors, (93), 88 states have call predecessors, (93), 90 states have call successors, (93) [2023-12-21 08:39:04,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 900 transitions. [2023-12-21 08:39:04,356 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 900 transitions. Word has length 107 [2023-12-21 08:39:04,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:04,356 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 900 transitions. [2023-12-21 08:39:04,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:04,356 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 900 transitions. [2023-12-21 08:39:04,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 08:39:04,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:04,357 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:04,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:04,563 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 08:39:04,563 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:04,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:04,565 INFO L85 PathProgramCache]: Analyzing trace with hash 958419095, now seen corresponding path program 1 times [2023-12-21 08:39:04,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:04,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398563397] [2023-12-21 08:39:04,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:04,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:39:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:39:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-21 08:39:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 08:39:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 08:39:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:04,860 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 08:39:04,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:04,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398563397] [2023-12-21 08:39:04,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398563397] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:04,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977320329] [2023-12-21 08:39:04,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:04,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:04,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:04,885 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:04,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 08:39:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:05,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:39:05,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:05,184 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-21 08:39:05,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:05,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977320329] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:05,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:05,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-12-21 08:39:05,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836894956] [2023-12-21 08:39:05,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:05,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:05,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:05,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:05,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-21 08:39:05,185 INFO L87 Difference]: Start difference. First operand 568 states and 900 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:05,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:05,594 INFO L93 Difference]: Finished difference Result 1074 states and 1743 transitions. [2023-12-21 08:39:05,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:39:05,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2023-12-21 08:39:05,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:05,597 INFO L225 Difference]: With dead ends: 1074 [2023-12-21 08:39:05,597 INFO L226 Difference]: Without dead ends: 576 [2023-12-21 08:39:05,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-12-21 08:39:05,600 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 748 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:05,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 1961 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:39:05,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-12-21 08:39:05,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2023-12-21 08:39:05,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 457 states have (on average 1.5929978118161925) internal successors, (728), 472 states have internal predecessors, (728), 91 states have call successors, (91), 28 states have call predecessors, (91), 27 states have return successors, (94), 88 states have call predecessors, (94), 90 states have call successors, (94) [2023-12-21 08:39:05,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 913 transitions. [2023-12-21 08:39:05,668 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 913 transitions. Word has length 110 [2023-12-21 08:39:05,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:05,668 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 913 transitions. [2023-12-21 08:39:05,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:05,669 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 913 transitions. [2023-12-21 08:39:05,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 08:39:05,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:05,670 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:05,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:05,876 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 08:39:05,878 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:05,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:05,878 INFO L85 PathProgramCache]: Analyzing trace with hash 130602490, now seen corresponding path program 1 times [2023-12-21 08:39:05,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:05,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126152151] [2023-12-21 08:39:05,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:05,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:39:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:39:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:39:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 08:39:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,348 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 08:39:06,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:06,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126152151] [2023-12-21 08:39:06,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126152151] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:06,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882715959] [2023-12-21 08:39:06,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:06,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:06,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:06,350 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:06,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 08:39:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:06,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 08:39:06,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:06,689 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:39:06,689 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:06,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882715959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:06,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:06,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-21 08:39:06,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193149726] [2023-12-21 08:39:06,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:06,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:39:06,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:06,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:39:06,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:06,690 INFO L87 Difference]: Start difference. First operand 576 states and 913 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:07,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:07,165 INFO L93 Difference]: Finished difference Result 1594 states and 2617 transitions. [2023-12-21 08:39:07,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 08:39:07,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2023-12-21 08:39:07,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:07,170 INFO L225 Difference]: With dead ends: 1594 [2023-12-21 08:39:07,170 INFO L226 Difference]: Without dead ends: 1088 [2023-12-21 08:39:07,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:39:07,173 INFO L413 NwaCegarLoop]: 815 mSDtfsCounter, 744 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 2989 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:07,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 2989 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:39:07,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2023-12-21 08:39:07,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1080. [2023-12-21 08:39:07,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 850 states have (on average 1.6176470588235294) internal successors, (1375), 881 states have internal predecessors, (1375), 176 states have call successors, (176), 53 states have call predecessors, (176), 53 states have return successors, (202), 171 states have call predecessors, (202), 174 states have call successors, (202) [2023-12-21 08:39:07,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1753 transitions. [2023-12-21 08:39:07,316 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1753 transitions. Word has length 113 [2023-12-21 08:39:07,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:07,317 INFO L495 AbstractCegarLoop]: Abstraction has 1080 states and 1753 transitions. [2023-12-21 08:39:07,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 08:39:07,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1753 transitions. [2023-12-21 08:39:07,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 08:39:07,318 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:07,318 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:07,324 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-21 08:39:07,522 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 08:39:07,522 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:07,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:07,522 INFO L85 PathProgramCache]: Analyzing trace with hash 331074965, now seen corresponding path program 1 times [2023-12-21 08:39:07,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:07,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035056903] [2023-12-21 08:39:07,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:07,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:39:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:39:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:39:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:39:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 08:39:07,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:07,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035056903] [2023-12-21 08:39:07,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035056903] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:07,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877221960] [2023-12-21 08:39:07,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:07,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:07,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:07,997 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:08,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 08:39:08,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:08,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 08:39:08,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:39:08,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:08,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877221960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:08,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:08,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2023-12-21 08:39:08,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110259620] [2023-12-21 08:39:08,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:08,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 08:39:08,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:08,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 08:39:08,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:39:08,278 INFO L87 Difference]: Start difference. First operand 1080 states and 1753 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:08,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:08,541 INFO L93 Difference]: Finished difference Result 2587 states and 4282 transitions. [2023-12-21 08:39:08,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 08:39:08,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2023-12-21 08:39:08,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:08,548 INFO L225 Difference]: With dead ends: 2587 [2023-12-21 08:39:08,548 INFO L226 Difference]: Without dead ends: 1578 [2023-12-21 08:39:08,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:39:08,552 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 753 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:08,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 2311 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:39:08,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2023-12-21 08:39:08,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1080. [2023-12-21 08:39:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 850 states have (on average 1.616470588235294) internal successors, (1374), 881 states have internal predecessors, (1374), 176 states have call successors, (176), 53 states have call predecessors, (176), 53 states have return successors, (202), 171 states have call predecessors, (202), 174 states have call successors, (202) [2023-12-21 08:39:08,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1752 transitions. [2023-12-21 08:39:08,691 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1752 transitions. Word has length 117 [2023-12-21 08:39:08,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:08,691 INFO L495 AbstractCegarLoop]: Abstraction has 1080 states and 1752 transitions. [2023-12-21 08:39:08,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:08,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1752 transitions. [2023-12-21 08:39:08,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 08:39:08,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:08,693 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:08,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:08,899 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 08:39:08,900 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:08,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:08,900 INFO L85 PathProgramCache]: Analyzing trace with hash -2040664297, now seen corresponding path program 1 times [2023-12-21 08:39:08,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:08,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580935746] [2023-12-21 08:39:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:08,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:39:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:09,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:39:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:39:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:39:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,433 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 08:39:09,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:09,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580935746] [2023-12-21 08:39:09,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580935746] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:09,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749937676] [2023-12-21 08:39:09,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:09,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:09,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:09,435 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:09,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 08:39:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:09,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:39:09,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:09,733 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:39:09,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:09,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749937676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:09,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:09,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:09,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275175956] [2023-12-21 08:39:09,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:09,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:09,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:09,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:09,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:09,734 INFO L87 Difference]: Start difference. First operand 1080 states and 1752 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:09,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:09,978 INFO L93 Difference]: Finished difference Result 2666 states and 4361 transitions. [2023-12-21 08:39:09,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:09,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2023-12-21 08:39:09,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:09,984 INFO L225 Difference]: With dead ends: 2666 [2023-12-21 08:39:09,985 INFO L226 Difference]: Without dead ends: 1658 [2023-12-21 08:39:09,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:09,988 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 339 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:09,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 2543 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:39:09,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2023-12-21 08:39:10,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1654. [2023-12-21 08:39:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1304 states have (on average 1.594325153374233) internal successors, (2079), 1339 states have internal predecessors, (2079), 260 states have call successors, (260), 89 states have call predecessors, (260), 89 states have return successors, (337), 251 states have call predecessors, (337), 256 states have call successors, (337) [2023-12-21 08:39:10,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2676 transitions. [2023-12-21 08:39:10,181 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2676 transitions. Word has length 117 [2023-12-21 08:39:10,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:10,181 INFO L495 AbstractCegarLoop]: Abstraction has 1654 states and 2676 transitions. [2023-12-21 08:39:10,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:10,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2676 transitions. [2023-12-21 08:39:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 08:39:10,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:10,184 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:10,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:10,390 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 08:39:10,390 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:10,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:10,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1838840363, now seen corresponding path program 1 times [2023-12-21 08:39:10,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:10,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053810347] [2023-12-21 08:39:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:10,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 08:39:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:39:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 08:39:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 08:39:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:10,776 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 08:39:10,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:10,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053810347] [2023-12-21 08:39:10,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053810347] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:10,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557581425] [2023-12-21 08:39:10,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:10,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:10,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:10,778 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:10,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 08:39:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:39:11,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 08:39:11,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:11,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557581425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:11,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:11,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [12] total 13 [2023-12-21 08:39:11,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511167648] [2023-12-21 08:39:11,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:11,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 08:39:11,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:11,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 08:39:11,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:39:11,083 INFO L87 Difference]: Start difference. First operand 1654 states and 2676 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:11,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:11,282 INFO L93 Difference]: Finished difference Result 2991 states and 4838 transitions. [2023-12-21 08:39:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 08:39:11,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2023-12-21 08:39:11,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:11,289 INFO L225 Difference]: With dead ends: 2991 [2023-12-21 08:39:11,289 INFO L226 Difference]: Without dead ends: 1409 [2023-12-21 08:39:11,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-21 08:39:11,298 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 537 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:11,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 1247 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:39:11,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2023-12-21 08:39:11,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1409. [2023-12-21 08:39:11,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1110 states have (on average 1.572972972972973) internal successors, (1746), 1137 states have internal predecessors, (1746), 219 states have call successors, (219), 81 states have call predecessors, (219), 79 states have return successors, (274), 214 states have call predecessors, (274), 215 states have call successors, (274) [2023-12-21 08:39:11,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 2239 transitions. [2023-12-21 08:39:11,493 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 2239 transitions. Word has length 117 [2023-12-21 08:39:11,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:11,493 INFO L495 AbstractCegarLoop]: Abstraction has 1409 states and 2239 transitions. [2023-12-21 08:39:11,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 08:39:11,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 2239 transitions. [2023-12-21 08:39:11,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 08:39:11,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:11,496 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:11,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-21 08:39:11,702 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 08:39:11,702 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:11,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1377757797, now seen corresponding path program 1 times [2023-12-21 08:39:11,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:11,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896035869] [2023-12-21 08:39:11,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:11,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:11,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:39:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:39:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 08:39:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:39:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 08:39:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 08:39:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:39:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:39:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 08:39:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-21 08:39:12,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:12,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896035869] [2023-12-21 08:39:12,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896035869] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:12,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506500559] [2023-12-21 08:39:12,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:12,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:12,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:12,074 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:12,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 08:39:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:12,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:39:12,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:12,332 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-21 08:39:12,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:12,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506500559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:12,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:12,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:12,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631657252] [2023-12-21 08:39:12,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:12,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:12,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:12,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:12,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:12,333 INFO L87 Difference]: Start difference. First operand 1409 states and 2239 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:12,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:12,632 INFO L93 Difference]: Finished difference Result 2824 states and 4556 transitions. [2023-12-21 08:39:12,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:12,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2023-12-21 08:39:12,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:12,639 INFO L225 Difference]: With dead ends: 2824 [2023-12-21 08:39:12,639 INFO L226 Difference]: Without dead ends: 1487 [2023-12-21 08:39:12,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:12,644 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 213 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:12,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2157 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:39:12,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2023-12-21 08:39:12,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1487. [2023-12-21 08:39:12,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1186 states have (on average 1.5952782462057336) internal successors, (1892), 1213 states have internal predecessors, (1892), 219 states have call successors, (219), 83 states have call predecessors, (219), 81 states have return successors, (274), 214 states have call predecessors, (274), 215 states have call successors, (274) [2023-12-21 08:39:12,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 2385 transitions. [2023-12-21 08:39:12,834 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 2385 transitions. Word has length 143 [2023-12-21 08:39:12,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:12,834 INFO L495 AbstractCegarLoop]: Abstraction has 1487 states and 2385 transitions. [2023-12-21 08:39:12,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:12,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 2385 transitions. [2023-12-21 08:39:12,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-21 08:39:12,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:12,837 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:12,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:13,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-21 08:39:13,044 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:13,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:13,044 INFO L85 PathProgramCache]: Analyzing trace with hash 935455538, now seen corresponding path program 1 times [2023-12-21 08:39:13,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:13,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410413766] [2023-12-21 08:39:13,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:13,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:39:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:39:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:39:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:39:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 08:39:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 08:39:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 08:39:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-21 08:39:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-12-21 08:39:13,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:13,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410413766] [2023-12-21 08:39:13,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410413766] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:13,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531929296] [2023-12-21 08:39:13,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:13,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:13,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:13,405 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:13,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 08:39:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:13,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 1311 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:39:13,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:13,687 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-21 08:39:13,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:13,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531929296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:13,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:13,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:13,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539264857] [2023-12-21 08:39:13,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:13,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:13,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:13,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:13,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:13,689 INFO L87 Difference]: Start difference. First operand 1487 states and 2385 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:14,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:14,044 INFO L93 Difference]: Finished difference Result 2980 states and 4846 transitions. [2023-12-21 08:39:14,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:14,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2023-12-21 08:39:14,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:14,051 INFO L225 Difference]: With dead ends: 2980 [2023-12-21 08:39:14,051 INFO L226 Difference]: Without dead ends: 1565 [2023-12-21 08:39:14,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:14,056 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 211 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:14,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2157 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:39:14,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2023-12-21 08:39:14,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2023-12-21 08:39:14,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1262 states have (on average 1.6148969889064977) internal successors, (2038), 1289 states have internal predecessors, (2038), 219 states have call successors, (219), 85 states have call predecessors, (219), 83 states have return successors, (274), 214 states have call predecessors, (274), 215 states have call successors, (274) [2023-12-21 08:39:14,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2531 transitions. [2023-12-21 08:39:14,223 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2531 transitions. Word has length 148 [2023-12-21 08:39:14,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:14,223 INFO L495 AbstractCegarLoop]: Abstraction has 1565 states and 2531 transitions. [2023-12-21 08:39:14,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:14,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2531 transitions. [2023-12-21 08:39:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-21 08:39:14,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:14,226 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:14,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-21 08:39:14,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-21 08:39:14,452 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:14,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:14,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1319894818, now seen corresponding path program 1 times [2023-12-21 08:39:14,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:14,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179842126] [2023-12-21 08:39:14,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:14,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:14,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:39:14,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:39:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:39:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 08:39:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 08:39:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:39:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 08:39:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-21 08:39:14,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-12-21 08:39:14,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:14,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179842126] [2023-12-21 08:39:14,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179842126] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:14,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479304724] [2023-12-21 08:39:14,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:14,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:14,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:14,816 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:14,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 08:39:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:15,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 1315 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:39:15,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:15,082 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 08:39:15,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:15,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479304724] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:15,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:15,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:15,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589640665] [2023-12-21 08:39:15,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:15,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:15,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:15,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:15,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:15,083 INFO L87 Difference]: Start difference. First operand 1565 states and 2531 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:15,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:15,383 INFO L93 Difference]: Finished difference Result 3136 states and 5136 transitions. [2023-12-21 08:39:15,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:15,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2023-12-21 08:39:15,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:15,390 INFO L225 Difference]: With dead ends: 3136 [2023-12-21 08:39:15,390 INFO L226 Difference]: Without dead ends: 1643 [2023-12-21 08:39:15,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:15,395 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 209 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:15,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2157 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:39:15,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2023-12-21 08:39:15,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1643. [2023-12-21 08:39:15,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1643 states, 1338 states have (on average 1.6322869955156951) internal successors, (2184), 1365 states have internal predecessors, (2184), 219 states have call successors, (219), 87 states have call predecessors, (219), 85 states have return successors, (274), 214 states have call predecessors, (274), 215 states have call successors, (274) [2023-12-21 08:39:15,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2677 transitions. [2023-12-21 08:39:15,590 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2677 transitions. Word has length 152 [2023-12-21 08:39:15,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:15,590 INFO L495 AbstractCegarLoop]: Abstraction has 1643 states and 2677 transitions. [2023-12-21 08:39:15,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:15,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2677 transitions. [2023-12-21 08:39:15,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-21 08:39:15,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:15,594 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:15,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:15,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-21 08:39:15,796 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:15,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:15,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1040874299, now seen corresponding path program 1 times [2023-12-21 08:39:15,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:15,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822783178] [2023-12-21 08:39:15,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:15,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:39:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:39:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:39:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:39:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 08:39:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 08:39:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 08:39:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 08:39:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,146 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-12-21 08:39:16,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:16,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822783178] [2023-12-21 08:39:16,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822783178] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:16,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357793935] [2023-12-21 08:39:16,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:16,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:16,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:16,147 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:16,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 08:39:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:16,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:39:16,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:16,407 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 08:39:16,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:16,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357793935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:16,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:16,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:16,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424009568] [2023-12-21 08:39:16,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:16,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:16,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:16,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:16,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:16,409 INFO L87 Difference]: Start difference. First operand 1643 states and 2677 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:16,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:16,722 INFO L93 Difference]: Finished difference Result 3292 states and 5426 transitions. [2023-12-21 08:39:16,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:16,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2023-12-21 08:39:16,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:16,729 INFO L225 Difference]: With dead ends: 3292 [2023-12-21 08:39:16,729 INFO L226 Difference]: Without dead ends: 1721 [2023-12-21 08:39:16,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:16,734 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 207 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:16,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2157 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:39:16,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2023-12-21 08:39:16,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1721. [2023-12-21 08:39:16,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1414 states have (on average 1.6478076379066477) internal successors, (2330), 1441 states have internal predecessors, (2330), 219 states have call successors, (219), 89 states have call predecessors, (219), 87 states have return successors, (274), 214 states have call predecessors, (274), 215 states have call successors, (274) [2023-12-21 08:39:16,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2823 transitions. [2023-12-21 08:39:16,906 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2823 transitions. Word has length 155 [2023-12-21 08:39:16,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:16,906 INFO L495 AbstractCegarLoop]: Abstraction has 1721 states and 2823 transitions. [2023-12-21 08:39:16,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:16,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2823 transitions. [2023-12-21 08:39:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-21 08:39:16,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:16,909 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:16,922 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 08:39:17,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-21 08:39:17,116 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:17,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1852738731, now seen corresponding path program 1 times [2023-12-21 08:39:17,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:17,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997814713] [2023-12-21 08:39:17,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:17,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:17,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:39:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:39:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:39:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:39:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 08:39:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 08:39:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 08:39:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 08:39:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-21 08:39:17,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:17,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997814713] [2023-12-21 08:39:17,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997814713] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:17,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133982111] [2023-12-21 08:39:17,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:17,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:17,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:17,468 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:17,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 08:39:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:17,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 08:39:17,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:17,732 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-21 08:39:17,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:17,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133982111] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:17,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:17,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:17,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847697312] [2023-12-21 08:39:17,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:17,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:17,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:17,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:17,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:17,735 INFO L87 Difference]: Start difference. First operand 1721 states and 2823 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:18,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:18,033 INFO L93 Difference]: Finished difference Result 3448 states and 5716 transitions. [2023-12-21 08:39:18,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:18,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 157 [2023-12-21 08:39:18,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:18,045 INFO L225 Difference]: With dead ends: 3448 [2023-12-21 08:39:18,045 INFO L226 Difference]: Without dead ends: 1799 [2023-12-21 08:39:18,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:18,050 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 205 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:18,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2157 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:39:18,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2023-12-21 08:39:18,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2023-12-21 08:39:18,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1490 states have (on average 1.661744966442953) internal successors, (2476), 1517 states have internal predecessors, (2476), 219 states have call successors, (219), 91 states have call predecessors, (219), 89 states have return successors, (274), 214 states have call predecessors, (274), 215 states have call successors, (274) [2023-12-21 08:39:18,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2969 transitions. [2023-12-21 08:39:18,285 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2969 transitions. Word has length 157 [2023-12-21 08:39:18,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:18,286 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 2969 transitions. [2023-12-21 08:39:18,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:18,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2969 transitions. [2023-12-21 08:39:18,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-21 08:39:18,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:18,289 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:18,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-21 08:39:18,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:18,495 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:18,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:18,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1828472550, now seen corresponding path program 1 times [2023-12-21 08:39:18,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:18,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278239495] [2023-12-21 08:39:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:18,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:39:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 08:39:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 08:39:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 08:39:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 08:39:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 08:39:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 08:39:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 08:39:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-21 08:39:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:18,829 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-12-21 08:39:18,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:18,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278239495] [2023-12-21 08:39:18,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278239495] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:18,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930842474] [2023-12-21 08:39:18,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:18,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:18,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:18,831 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:18,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 08:39:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 1317 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:39:19,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:19,082 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-21 08:39:19,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:19,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930842474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:19,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:19,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-12-21 08:39:19,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789162347] [2023-12-21 08:39:19,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:19,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:39:19,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:19,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:39:19,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-21 08:39:19,084 INFO L87 Difference]: Start difference. First operand 1799 states and 2969 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:19,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:19,349 INFO L93 Difference]: Finished difference Result 3582 states and 5986 transitions. [2023-12-21 08:39:19,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:39:19,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 157 [2023-12-21 08:39:19,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:19,358 INFO L225 Difference]: With dead ends: 3582 [2023-12-21 08:39:19,358 INFO L226 Difference]: Without dead ends: 1855 [2023-12-21 08:39:19,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-21 08:39:19,363 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 60 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:19,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 2374 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 08:39:19,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2023-12-21 08:39:19,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1807. [2023-12-21 08:39:19,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1498 states have (on average 1.658210947930574) internal successors, (2484), 1525 states have internal predecessors, (2484), 219 states have call successors, (219), 91 states have call predecessors, (219), 89 states have return successors, (274), 214 states have call predecessors, (274), 215 states have call successors, (274) [2023-12-21 08:39:19,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2977 transitions. [2023-12-21 08:39:19,535 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2977 transitions. Word has length 157 [2023-12-21 08:39:19,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:19,535 INFO L495 AbstractCegarLoop]: Abstraction has 1807 states and 2977 transitions. [2023-12-21 08:39:19,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-21 08:39:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2977 transitions. [2023-12-21 08:39:19,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-21 08:39:19,539 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:19,539 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:19,545 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 08:39:19,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:19,746 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:19,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:19,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1014835257, now seen corresponding path program 1 times [2023-12-21 08:39:19,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:19,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178864888] [2023-12-21 08:39:19,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:19,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:19,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:39:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:39:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:39:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 08:39:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:39:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:39:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 08:39:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 08:39:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 08:39:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-12-21 08:39:20,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:20,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178864888] [2023-12-21 08:39:20,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178864888] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:20,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224496481] [2023-12-21 08:39:20,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:20,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:20,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:20,071 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:20,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 08:39:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:20,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-21 08:39:20,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-12-21 08:39:20,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:39:20,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224496481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:20,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:39:20,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2023-12-21 08:39:20,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001894325] [2023-12-21 08:39:20,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:20,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:39:20,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:20,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:39:20,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:39:20,536 INFO L87 Difference]: Start difference. First operand 1807 states and 2977 transitions. Second operand has 9 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 08:39:22,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:22,769 INFO L93 Difference]: Finished difference Result 5563 states and 9335 transitions. [2023-12-21 08:39:22,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 08:39:22,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) Word has length 164 [2023-12-21 08:39:22,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:22,813 INFO L225 Difference]: With dead ends: 5563 [2023-12-21 08:39:22,813 INFO L226 Difference]: Without dead ends: 3488 [2023-12-21 08:39:22,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2023-12-21 08:39:22,821 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 1846 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 3706 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 4148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 3706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:22,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 2178 Invalid, 4148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 3706 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 08:39:22,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3488 states. [2023-12-21 08:39:23,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3488 to 3416. [2023-12-21 08:39:23,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3416 states, 2779 states have (on average 1.672544080604534) internal successors, (4648), 2859 states have internal predecessors, (4648), 455 states have call successors, (455), 163 states have call predecessors, (455), 181 states have return successors, (597), 451 states have call predecessors, (597), 451 states have call successors, (597) [2023-12-21 08:39:23,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 5700 transitions. [2023-12-21 08:39:23,236 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 5700 transitions. Word has length 164 [2023-12-21 08:39:23,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:23,237 INFO L495 AbstractCegarLoop]: Abstraction has 3416 states and 5700 transitions. [2023-12-21 08:39:23,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (17), 4 states have call predecessors, (17), 6 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 08:39:23,237 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 5700 transitions. [2023-12-21 08:39:23,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-21 08:39:23,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:23,244 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:23,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-21 08:39:23,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:23,450 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:23,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:23,451 INFO L85 PathProgramCache]: Analyzing trace with hash 248236585, now seen corresponding path program 1 times [2023-12-21 08:39:23,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:23,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813589767] [2023-12-21 08:39:23,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:23,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 08:39:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 08:39:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:39:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:39:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 08:39:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 08:39:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:39:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 08:39:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 08:39:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 08:39:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-12-21 08:39:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:23,679 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-21 08:39:23,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:23,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813589767] [2023-12-21 08:39:23,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813589767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:23,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:23,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:39:23,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429834998] [2023-12-21 08:39:23,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:23,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:39:23,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:23,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:39:23,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:39:23,681 INFO L87 Difference]: Start difference. First operand 3416 states and 5700 transitions. Second operand has 9 states, 8 states have (on average 12.25) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 08:39:27,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:27,709 INFO L93 Difference]: Finished difference Result 7655 states and 12957 transitions. [2023-12-21 08:39:27,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 08:39:27,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.25) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 164 [2023-12-21 08:39:27,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:27,729 INFO L225 Difference]: With dead ends: 7655 [2023-12-21 08:39:27,730 INFO L226 Difference]: Without dead ends: 4247 [2023-12-21 08:39:27,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2023-12-21 08:39:27,739 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 763 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 3339 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 3480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 3339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:27,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 2629 Invalid, 3480 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [141 Valid, 3339 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 08:39:27,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4247 states. [2023-12-21 08:39:28,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4247 to 3430. [2023-12-21 08:39:28,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 2793 states have (on average 1.6609380594343) internal successors, (4639), 2873 states have internal predecessors, (4639), 455 states have call successors, (455), 163 states have call predecessors, (455), 181 states have return successors, (597), 451 states have call predecessors, (597), 451 states have call successors, (597) [2023-12-21 08:39:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 5691 transitions. [2023-12-21 08:39:28,211 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 5691 transitions. Word has length 164 [2023-12-21 08:39:28,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:28,211 INFO L495 AbstractCegarLoop]: Abstraction has 3430 states and 5691 transitions. [2023-12-21 08:39:28,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.25) internal successors, (98), 6 states have internal predecessors, (98), 3 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 08:39:28,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 5691 transitions. [2023-12-21 08:39:28,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-21 08:39:28,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:28,218 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:28,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 08:39:28,218 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:28,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:28,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1032020555, now seen corresponding path program 1 times [2023-12-21 08:39:28,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:28,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810800194] [2023-12-21 08:39:28,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:28,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-21 08:39:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:39:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 08:39:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 08:39:28,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 08:39:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 08:39:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 08:39:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 08:39:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 08:39:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-21 08:39:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 08:39:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:28,466 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-21 08:39:28,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:28,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810800194] [2023-12-21 08:39:28,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810800194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:39:28,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 08:39:28,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 08:39:28,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632932124] [2023-12-21 08:39:28,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:39:28,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 08:39:28,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:28,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 08:39:28,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-21 08:39:28,468 INFO L87 Difference]: Start difference. First operand 3430 states and 5691 transitions. Second operand has 9 states, 8 states have (on average 13.0) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 08:39:32,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:39:32,305 INFO L93 Difference]: Finished difference Result 7334 states and 12480 transitions. [2023-12-21 08:39:32,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 08:39:32,306 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 170 [2023-12-21 08:39:32,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:39:32,319 INFO L225 Difference]: With dead ends: 7334 [2023-12-21 08:39:32,319 INFO L226 Difference]: Without dead ends: 3802 [2023-12-21 08:39:32,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2023-12-21 08:39:32,327 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 1351 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 3289 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 3592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 3289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:39:32,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1455 Valid, 2693 Invalid, 3592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 3289 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-21 08:39:32,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2023-12-21 08:39:32,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3050. [2023-12-21 08:39:32,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3050 states, 2513 states have (on average 1.706725029844807) internal successors, (4289), 2580 states have internal predecessors, (4289), 375 states have call successors, (375), 151 states have call predecessors, (375), 161 states have return successors, (467), 366 states have call predecessors, (467), 371 states have call successors, (467) [2023-12-21 08:39:32,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3050 states to 3050 states and 5131 transitions. [2023-12-21 08:39:32,708 INFO L78 Accepts]: Start accepts. Automaton has 3050 states and 5131 transitions. Word has length 170 [2023-12-21 08:39:32,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:39:32,708 INFO L495 AbstractCegarLoop]: Abstraction has 3050 states and 5131 transitions. [2023-12-21 08:39:32,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-21 08:39:32,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3050 states and 5131 transitions. [2023-12-21 08:39:32,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-21 08:39:32,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:39:32,721 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:39:32,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 08:39:32,722 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:39:32,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:39:32,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1216103903, now seen corresponding path program 1 times [2023-12-21 08:39:32,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:39:32,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535320947] [2023-12-21 08:39:32,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:32,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:39:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:39:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:39:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:39:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:39:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 08:39:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:39:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-21 08:39:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 08:39:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 08:39:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-21 08:39:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:39:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:39:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:39:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:39:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:39:33,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-12-21 08:39:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:39:33,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-12-21 08:39:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-12-21 08:39:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-12-21 08:39:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-12-21 08:39:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-21 08:39:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-12-21 08:39:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2023-12-21 08:39:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2023-12-21 08:39:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2023-12-21 08:39:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2023-12-21 08:39:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:39:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2023-12-21 08:39:33,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:33,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 36 proven. 116 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2023-12-21 08:39:33,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:39:33,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535320947] [2023-12-21 08:39:33,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535320947] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:39:33,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678258598] [2023-12-21 08:39:33,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:39:33,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:39:33,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:39:33,570 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:39:33,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 08:39:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:39:34,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 3148 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 08:39:34,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:39:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 345 proven. 48 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2023-12-21 08:39:34,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:39:35,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 53 proven. 97 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-12-21 08:39:35,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678258598] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:39:35,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:39:35,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 14] total 34 [2023-12-21 08:39:35,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839002573] [2023-12-21 08:39:35,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:39:35,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 08:39:35,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:39:35,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 08:39:35,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 08:39:35,103 INFO L87 Difference]: Start difference. First operand 3050 states and 5131 transitions. Second operand has 34 states, 31 states have (on average 11.193548387096774) internal successors, (347), 25 states have internal predecessors, (347), 17 states have call successors, (92), 11 states have call predecessors, (92), 14 states have return successors, (91), 22 states have call predecessors, (91), 17 states have call successors, (91) [2023-12-21 08:41:36,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:36,623 INFO L93 Difference]: Finished difference Result 31211 states and 58607 transitions. [2023-12-21 08:41:36,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 488 states. [2023-12-21 08:41:36,624 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 31 states have (on average 11.193548387096774) internal successors, (347), 25 states have internal predecessors, (347), 17 states have call successors, (92), 11 states have call predecessors, (92), 14 states have return successors, (91), 22 states have call predecessors, (91), 17 states have call successors, (91) Word has length 437 [2023-12-21 08:41:36,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:36,786 INFO L225 Difference]: With dead ends: 31211 [2023-12-21 08:41:36,786 INFO L226 Difference]: Without dead ends: 28122 [2023-12-21 08:41:36,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1702 GetRequests, 1182 SyntacticMatches, 4 SemanticMatches, 516 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123671 ImplicationChecksByTransitivity, 56.3s TimeCoverageRelationStatistics Valid=22128, Invalid=245678, Unknown=0, NotChecked=0, Total=267806 [2023-12-21 08:41:36,860 INFO L413 NwaCegarLoop]: 2258 mSDtfsCounter, 49132 mSDsluCounter, 22740 mSDsCounter, 0 mSdLazyCounter, 89777 mSolverCounterSat, 22433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49132 SdHoareTripleChecker+Valid, 24998 SdHoareTripleChecker+Invalid, 112210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 22433 IncrementalHoareTripleChecker+Valid, 89777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.8s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:36,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49132 Valid, 24998 Invalid, 112210 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [22433 Valid, 89777 Invalid, 0 Unknown, 0 Unchecked, 54.8s Time] [2023-12-21 08:41:36,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28122 states. [2023-12-21 08:41:39,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28122 to 15961. [2023-12-21 08:41:39,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15961 states, 13126 states have (on average 1.6807100411397227) internal successors, (22061), 13477 states have internal predecessors, (22061), 1862 states have call successors, (1862), 844 states have call predecessors, (1862), 972 states have return successors, (2614), 1903 states have call predecessors, (2614), 1844 states have call successors, (2614) [2023-12-21 08:41:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15961 states to 15961 states and 26537 transitions. [2023-12-21 08:41:39,656 INFO L78 Accepts]: Start accepts. Automaton has 15961 states and 26537 transitions. Word has length 437 [2023-12-21 08:41:39,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:39,656 INFO L495 AbstractCegarLoop]: Abstraction has 15961 states and 26537 transitions. [2023-12-21 08:41:39,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 31 states have (on average 11.193548387096774) internal successors, (347), 25 states have internal predecessors, (347), 17 states have call successors, (92), 11 states have call predecessors, (92), 14 states have return successors, (91), 22 states have call predecessors, (91), 17 states have call successors, (91) [2023-12-21 08:41:39,656 INFO L276 IsEmpty]: Start isEmpty. Operand 15961 states and 26537 transitions. [2023-12-21 08:41:39,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2023-12-21 08:41:39,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:39,695 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 11, 11, 10, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:39,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 08:41:39,904 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,SelfDestructingSolverStorable34 [2023-12-21 08:41:39,905 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:39,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:39,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1989823841, now seen corresponding path program 1 times [2023-12-21 08:41:39,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:39,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561365946] [2023-12-21 08:41:39,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:39,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:41:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:41:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 08:41:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 08:41:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-21 08:41:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:40,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:41:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:41:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:41:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-12-21 08:41:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-21 08:41:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 08:41:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:41:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-12-21 08:41:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-12-21 08:41:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-12-21 08:41:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2023-12-21 08:41:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2023-12-21 08:41:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2023-12-21 08:41:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2023-12-21 08:41:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2023-12-21 08:41:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2023-12-21 08:41:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2023-12-21 08:41:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2023-12-21 08:41:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2023-12-21 08:41:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2023-12-21 08:41:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:40,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 26 proven. 41 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2023-12-21 08:41:40,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:40,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561365946] [2023-12-21 08:41:40,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561365946] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:40,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487633100] [2023-12-21 08:41:40,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:40,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:40,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:40,759 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:41:40,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-21 08:41:41,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:41,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 3211 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:41:41,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:41,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2023-12-21 08:41:41,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:41:41,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487633100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:41:41,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:41:41,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 16 [2023-12-21 08:41:41,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707401430] [2023-12-21 08:41:41,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:41:41,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 08:41:41,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:41,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 08:41:41,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-21 08:41:41,299 INFO L87 Difference]: Start difference. First operand 15961 states and 26537 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-21 08:41:44,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:41:44,822 INFO L93 Difference]: Finished difference Result 34172 states and 57219 transitions. [2023-12-21 08:41:44,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:41:44,823 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 454 [2023-12-21 08:41:44,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:41:44,895 INFO L225 Difference]: With dead ends: 34172 [2023-12-21 08:41:44,896 INFO L226 Difference]: Without dead ends: 18277 [2023-12-21 08:41:44,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 567 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-12-21 08:41:44,930 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 159 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 3922 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:41:44,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 3922 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:41:44,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18277 states. [2023-12-21 08:41:47,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18277 to 16103. [2023-12-21 08:41:47,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16103 states, 13230 states have (on average 1.6753590325018897) internal successors, (22165), 13597 states have internal predecessors, (22165), 1862 states have call successors, (1862), 844 states have call predecessors, (1862), 1010 states have return successors, (2692), 1925 states have call predecessors, (2692), 1844 states have call successors, (2692) [2023-12-21 08:41:47,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16103 states to 16103 states and 26719 transitions. [2023-12-21 08:41:47,391 INFO L78 Accepts]: Start accepts. Automaton has 16103 states and 26719 transitions. Word has length 454 [2023-12-21 08:41:47,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:41:47,391 INFO L495 AbstractCegarLoop]: Abstraction has 16103 states and 26719 transitions. [2023-12-21 08:41:47,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-12-21 08:41:47,392 INFO L276 IsEmpty]: Start isEmpty. Operand 16103 states and 26719 transitions. [2023-12-21 08:41:47,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2023-12-21 08:41:47,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:41:47,434 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:41:47,442 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 08:41:47,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:47,642 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:41:47,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:41:47,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1728496032, now seen corresponding path program 1 times [2023-12-21 08:41:47,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:41:47,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942463797] [2023-12-21 08:41:47,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:47,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:41:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:47,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:41:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:41:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:41:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:41:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:41:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:41:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:41:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:41:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 08:41:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 08:41:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-21 08:41:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:41:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:41:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:41:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-12-21 08:41:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:41:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:41:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 08:41:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:41:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:41:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:41:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-12-21 08:41:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:41:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2023-12-21 08:41:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-12-21 08:41:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2023-12-21 08:41:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-12-21 08:41:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2023-12-21 08:41:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-21 08:41:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2023-12-21 08:41:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-12-21 08:41:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2023-12-21 08:41:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-12-21 08:41:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:41:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 498 [2023-12-21 08:41:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 73 proven. 96 refuted. 0 times theorem prover too weak. 1108 trivial. 0 not checked. [2023-12-21 08:41:48,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:41:48,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942463797] [2023-12-21 08:41:48,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942463797] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:41:48,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326081574] [2023-12-21 08:41:48,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:41:48,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:41:48,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:41:48,448 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 08:41:48,450 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 08:41:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:41:48,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 3358 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:41:48,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:41:49,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 788 proven. 3 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2023-12-21 08:41:49,023 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:41:49,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 121 proven. 19 refuted. 0 times theorem prover too weak. 1137 trivial. 0 not checked. [2023-12-21 08:41:49,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326081574] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:41:49,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:41:49,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 6] total 21 [2023-12-21 08:41:49,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962128004] [2023-12-21 08:41:49,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:41:49,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-21 08:41:49,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:41:49,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-21 08:41:49,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2023-12-21 08:41:49,377 INFO L87 Difference]: Start difference. First operand 16103 states and 26719 transitions. Second operand has 21 states, 21 states have (on average 16.714285714285715) internal successors, (351), 17 states have internal predecessors, (351), 6 states have call successors, (80), 7 states have call predecessors, (80), 11 states have return successors, (79), 8 states have call predecessors, (79), 6 states have call successors, (79) [2023-12-21 08:42:17,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:17,610 INFO L93 Difference]: Finished difference Result 53317 states and 94637 transitions. [2023-12-21 08:42:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-12-21 08:42:17,611 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 16.714285714285715) internal successors, (351), 17 states have internal predecessors, (351), 6 states have call successors, (80), 7 states have call predecessors, (80), 11 states have return successors, (79), 8 states have call predecessors, (79), 6 states have call successors, (79) Word has length 505 [2023-12-21 08:42:17,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:17,793 INFO L225 Difference]: With dead ends: 53317 [2023-12-21 08:42:17,794 INFO L226 Difference]: Without dead ends: 35797 [2023-12-21 08:42:17,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 1159 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2282 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1513, Invalid=5293, Unknown=0, NotChecked=0, Total=6806 [2023-12-21 08:42:17,962 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 10707 mSDsluCounter, 4565 mSDsCounter, 0 mSdLazyCounter, 13800 mSolverCounterSat, 4747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10707 SdHoareTripleChecker+Valid, 5172 SdHoareTripleChecker+Invalid, 18547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4747 IncrementalHoareTripleChecker+Valid, 13800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:17,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10707 Valid, 5172 Invalid, 18547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4747 Valid, 13800 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2023-12-21 08:42:17,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35797 states. [2023-12-21 08:42:22,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35797 to 25099. [2023-12-21 08:42:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25099 states, 20394 states have (on average 1.6522996959890164) internal successors, (33697), 20965 states have internal predecessors, (33697), 3033 states have call successors, (3033), 1420 states have call predecessors, (3033), 1671 states have return successors, (4516), 3157 states have call predecessors, (4516), 3010 states have call successors, (4516) [2023-12-21 08:42:22,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25099 states to 25099 states and 41246 transitions. [2023-12-21 08:42:22,440 INFO L78 Accepts]: Start accepts. Automaton has 25099 states and 41246 transitions. Word has length 505 [2023-12-21 08:42:22,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:22,441 INFO L495 AbstractCegarLoop]: Abstraction has 25099 states and 41246 transitions. [2023-12-21 08:42:22,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 16.714285714285715) internal successors, (351), 17 states have internal predecessors, (351), 6 states have call successors, (80), 7 states have call predecessors, (80), 11 states have return successors, (79), 8 states have call predecessors, (79), 6 states have call successors, (79) [2023-12-21 08:42:22,441 INFO L276 IsEmpty]: Start isEmpty. Operand 25099 states and 41246 transitions. [2023-12-21 08:42:22,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2023-12-21 08:42:22,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:22,493 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:42:22,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-21 08:42:22,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:22,702 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:22,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:22,702 INFO L85 PathProgramCache]: Analyzing trace with hash 760499462, now seen corresponding path program 1 times [2023-12-21 08:42:22,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:22,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508994014] [2023-12-21 08:42:22,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:22,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:42:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:42:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:42:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:42:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:42:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:42:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:42:23,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:42:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 08:42:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:42:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:42:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:42:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 08:42:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:42:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 08:42:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:42:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 08:42:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2023-12-21 08:42:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2023-12-21 08:42:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2023-12-21 08:42:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2023-12-21 08:42:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2023-12-21 08:42:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2023-12-21 08:42:23,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2023-12-21 08:42:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2023-12-21 08:42:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2023-12-21 08:42:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2023-12-21 08:42:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 485 [2023-12-21 08:42:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2023-12-21 08:42:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2023-12-21 08:42:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 61 proven. 69 refuted. 0 times theorem prover too weak. 1246 trivial. 0 not checked. [2023-12-21 08:42:23,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:23,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508994014] [2023-12-21 08:42:23,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508994014] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:23,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821863034] [2023-12-21 08:42:23,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:23,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:23,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:23,450 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:42:23,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-21 08:42:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:23,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 3383 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 08:42:23,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:24,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 806 proven. 0 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-12-21 08:42:24,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:42:24,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821863034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:42:24,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:42:24,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 16 [2023-12-21 08:42:24,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943144239] [2023-12-21 08:42:24,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:42:24,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 08:42:24,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:24,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 08:42:24,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-21 08:42:24,028 INFO L87 Difference]: Start difference. First operand 25099 states and 41246 transitions. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2023-12-21 08:42:32,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:42:32,041 INFO L93 Difference]: Finished difference Result 67316 states and 111153 transitions. [2023-12-21 08:42:32,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 08:42:32,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 516 [2023-12-21 08:42:32,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:42:32,216 INFO L225 Difference]: With dead ends: 67316 [2023-12-21 08:42:32,216 INFO L226 Difference]: Without dead ends: 46494 [2023-12-21 08:42:32,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-12-21 08:42:32,288 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 757 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:42:32,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 2047 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 08:42:32,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46494 states. [2023-12-21 08:42:39,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46494 to 46205. [2023-12-21 08:42:40,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46205 states, 37530 states have (on average 1.6582467359445776) internal successors, (62234), 38622 states have internal predecessors, (62234), 5635 states have call successors, (5635), 2579 states have call predecessors, (5635), 3039 states have return successors, (8876), 5867 states have call predecessors, (8876), 5596 states have call successors, (8876) [2023-12-21 08:42:40,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46205 states to 46205 states and 76745 transitions. [2023-12-21 08:42:40,275 INFO L78 Accepts]: Start accepts. Automaton has 46205 states and 76745 transitions. Word has length 516 [2023-12-21 08:42:40,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:42:40,276 INFO L495 AbstractCegarLoop]: Abstraction has 46205 states and 76745 transitions. [2023-12-21 08:42:40,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2023-12-21 08:42:40,276 INFO L276 IsEmpty]: Start isEmpty. Operand 46205 states and 76745 transitions. [2023-12-21 08:42:40,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2023-12-21 08:42:40,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:42:40,374 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 08:42:40,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-21 08:42:40,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:40,583 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:42:40,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:42:40,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1646451075, now seen corresponding path program 1 times [2023-12-21 08:42:40,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:42:40,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720765501] [2023-12-21 08:42:40,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:40,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:42:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:40,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:40,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:40,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:42:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:42:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-21 08:42:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-21 08:42:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 08:42:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 08:42:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:42:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:42:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 08:42:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 08:42:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-21 08:42:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:42:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:42:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:42:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-12-21 08:42:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-21 08:42:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:42:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 08:42:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:42:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:42:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-12-21 08:42:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:42:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2023-12-21 08:42:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2023-12-21 08:42:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2023-12-21 08:42:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2023-12-21 08:42:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2023-12-21 08:42:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2023-12-21 08:42:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 441 [2023-12-21 08:42:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2023-12-21 08:42:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2023-12-21 08:42:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2023-12-21 08:42:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2023-12-21 08:42:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:42:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2023-12-21 08:42:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 61 proven. 69 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-12-21 08:42:41,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:42:41,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720765501] [2023-12-21 08:42:41,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720765501] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:42:41,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096298776] [2023-12-21 08:42:41,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:42:41,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:42:41,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:42:41,317 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:42:41,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-21 08:42:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:42:41,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 3355 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 08:42:41,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:42:41,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 617 proven. 31 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2023-12-21 08:42:41,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:42:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 72 proven. 43 refuted. 0 times theorem prover too weak. 1265 trivial. 0 not checked. [2023-12-21 08:42:42,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096298776] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:42:42,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:42:42,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 10] total 25 [2023-12-21 08:42:42,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738323464] [2023-12-21 08:42:42,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:42:42,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-21 08:42:42,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:42:42,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-21 08:42:42,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2023-12-21 08:42:42,565 INFO L87 Difference]: Start difference. First operand 46205 states and 76745 transitions. Second operand has 25 states, 24 states have (on average 16.375) internal successors, (393), 19 states have internal predecessors, (393), 13 states have call successors, (108), 10 states have call predecessors, (108), 14 states have return successors, (104), 15 states have call predecessors, (104), 13 states have call successors, (104) [2023-12-21 08:43:49,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:43:49,858 INFO L93 Difference]: Finished difference Result 175961 states and 340485 transitions. [2023-12-21 08:43:49,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2023-12-21 08:43:49,859 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 16.375) internal successors, (393), 19 states have internal predecessors, (393), 13 states have call successors, (108), 10 states have call predecessors, (108), 14 states have return successors, (104), 15 states have call predecessors, (104), 13 states have call successors, (104) Word has length 508 [2023-12-21 08:43:49,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:43:51,051 INFO L225 Difference]: With dead ends: 175961 [2023-12-21 08:43:51,051 INFO L226 Difference]: Without dead ends: 129516 [2023-12-21 08:43:51,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1305 GetRequests, 1167 SyntacticMatches, 5 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6931 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=3150, Invalid=14940, Unknown=0, NotChecked=0, Total=18090 [2023-12-21 08:43:51,579 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 18144 mSDsluCounter, 7183 mSDsCounter, 0 mSdLazyCounter, 26260 mSolverCounterSat, 8723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18144 SdHoareTripleChecker+Valid, 8143 SdHoareTripleChecker+Invalid, 34983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8723 IncrementalHoareTripleChecker+Valid, 26260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2023-12-21 08:43:51,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18144 Valid, 8143 Invalid, 34983 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8723 Valid, 26260 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2023-12-21 08:43:51,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129516 states. [2023-12-21 08:44:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129516 to 74197. [2023-12-21 08:44:06,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74197 states, 60111 states have (on average 1.6535742210244382) internal successors, (99398), 61879 states have internal predecessors, (99398), 9179 states have call successors, (9179), 4021 states have call predecessors, (9179), 4906 states have return successors, (15314), 9712 states have call predecessors, (15314), 9141 states have call successors, (15314) [2023-12-21 08:44:07,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74197 states to 74197 states and 123891 transitions. [2023-12-21 08:44:07,044 INFO L78 Accepts]: Start accepts. Automaton has 74197 states and 123891 transitions. Word has length 508 [2023-12-21 08:44:07,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:44:07,044 INFO L495 AbstractCegarLoop]: Abstraction has 74197 states and 123891 transitions. [2023-12-21 08:44:07,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 16.375) internal successors, (393), 19 states have internal predecessors, (393), 13 states have call successors, (108), 10 states have call predecessors, (108), 14 states have return successors, (104), 15 states have call predecessors, (104), 13 states have call successors, (104) [2023-12-21 08:44:07,045 INFO L276 IsEmpty]: Start isEmpty. Operand 74197 states and 123891 transitions. [2023-12-21 08:44:07,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2023-12-21 08:44:07,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:44:07,151 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:44:07,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-21 08:44:07,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-12-21 08:44:07,359 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:44:07,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:44:07,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2070528227, now seen corresponding path program 1 times [2023-12-21 08:44:07,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:44:07,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950949895] [2023-12-21 08:44:07,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:07,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:44:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:07,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:44:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:44:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:44:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:44:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:44:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:44:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:44:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:07,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:44:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 08:44:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:44:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 08:44:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:44:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:44:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:44:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-21 08:44:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:44:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-21 08:44:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 08:44:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 08:44:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2023-12-21 08:44:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2023-12-21 08:44:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2023-12-21 08:44:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-21 08:44:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2023-12-21 08:44:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2023-12-21 08:44:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 454 [2023-12-21 08:44:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 465 [2023-12-21 08:44:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 477 [2023-12-21 08:44:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 490 [2023-12-21 08:44:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2023-12-21 08:44:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2023-12-21 08:44:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 65 proven. 38 refuted. 0 times theorem prover too weak. 1290 trivial. 0 not checked. [2023-12-21 08:44:08,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:44:08,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950949895] [2023-12-21 08:44:08,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950949895] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:44:08,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635737869] [2023-12-21 08:44:08,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:08,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:44:08,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:44:08,094 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 08:44:08,135 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 08:44:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:08,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 3404 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-21 08:44:08,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:44:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 713 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2023-12-21 08:44:08,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 08:44:08,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635737869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 08:44:08,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 08:44:08,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2023-12-21 08:44:08,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022057902] [2023-12-21 08:44:08,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 08:44:08,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 08:44:08,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:44:08,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 08:44:08,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-12-21 08:44:08,673 INFO L87 Difference]: Start difference. First operand 74197 states and 123891 transitions. Second operand has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 4 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2023-12-21 08:44:22,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 08:44:22,451 INFO L93 Difference]: Finished difference Result 148987 states and 249756 transitions. [2023-12-21 08:44:22,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 08:44:22,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 4 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 521 [2023-12-21 08:44:22,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 08:44:22,731 INFO L225 Difference]: With dead ends: 148987 [2023-12-21 08:44:22,731 INFO L226 Difference]: Without dead ends: 74197 [2023-12-21 08:44:23,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 635 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2023-12-21 08:44:23,313 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 582 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 2697 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 08:44:23,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 2697 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 08:44:23,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74197 states. [2023-12-21 08:44:35,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74197 to 74197. [2023-12-21 08:44:35,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74197 states, 60111 states have (on average 1.6521601703515163) internal successors, (99313), 61879 states have internal predecessors, (99313), 9179 states have call successors, (9179), 4021 states have call predecessors, (9179), 4906 states have return successors, (15314), 9712 states have call predecessors, (15314), 9141 states have call successors, (15314) [2023-12-21 08:44:36,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74197 states to 74197 states and 123806 transitions. [2023-12-21 08:44:36,352 INFO L78 Accepts]: Start accepts. Automaton has 74197 states and 123806 transitions. Word has length 521 [2023-12-21 08:44:36,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 08:44:36,352 INFO L495 AbstractCegarLoop]: Abstraction has 74197 states and 123806 transitions. [2023-12-21 08:44:36,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 4 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2023-12-21 08:44:36,352 INFO L276 IsEmpty]: Start isEmpty. Operand 74197 states and 123806 transitions. [2023-12-21 08:44:36,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2023-12-21 08:44:36,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 08:44:36,453 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-21 08:44:36,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-21 08:44:36,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-12-21 08:44:36,661 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 08:44:36,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 08:44:36,661 INFO L85 PathProgramCache]: Analyzing trace with hash -261151462, now seen corresponding path program 1 times [2023-12-21 08:44:36,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 08:44:36,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512819563] [2023-12-21 08:44:36,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:36,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 08:44:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:36,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:36,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:36,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-21 08:44:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 08:44:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-21 08:44:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 08:44:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 08:44:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:44:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 08:44:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 08:44:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 08:44:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 08:44:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-21 08:44:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 08:44:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 08:44:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 08:44:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-12-21 08:44:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 08:44:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-21 08:44:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 08:44:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 08:44:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 08:44:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2023-12-21 08:44:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-21 08:44:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2023-12-21 08:44:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-12-21 08:44:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2023-12-21 08:44:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2023-12-21 08:44:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2023-12-21 08:44:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2023-12-21 08:44:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 457 [2023-12-21 08:44:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2023-12-21 08:44:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2023-12-21 08:44:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2023-12-21 08:44:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-21 08:44:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2023-12-21 08:44:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 65 proven. 38 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2023-12-21 08:44:37,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 08:44:37,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512819563] [2023-12-21 08:44:37,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512819563] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 08:44:37,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931565422] [2023-12-21 08:44:37,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 08:44:37,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 08:44:37,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 08:44:37,290 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 08:44:37,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-21 08:44:37,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 08:44:37,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 3376 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 08:44:37,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 08:44:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 798 proven. 53 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-21 08:44:37,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 08:44:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 102 proven. 9 refuted. 0 times theorem prover too weak. 1284 trivial. 0 not checked. [2023-12-21 08:44:38,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931565422] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 08:44:38,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 08:44:38,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 7] total 24 [2023-12-21 08:44:38,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588186663] [2023-12-21 08:44:38,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 08:44:38,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-21 08:44:38,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 08:44:38,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-21 08:44:38,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2023-12-21 08:44:38,298 INFO L87 Difference]: Start difference. First operand 74197 states and 123806 transitions. Second operand has 24 states, 23 states have (on average 14.565217391304348) internal successors, (335), 19 states have internal predecessors, (335), 13 states have call successors, (91), 10 states have call predecessors, (91), 10 states have return successors, (85), 13 states have call predecessors, (85), 13 states have call successors, (85)